Fixed a compilation issue under Windows and MacOS, added safeguards

- GLFW errors are now detected
- Added IntConstantsMap
- Removed window maximization on init

.gitattributes

@@ -6,4 +6,4 @@
 *               text=auto eol=lf
 
 *.bat           text eol=crlf
-
+*.nsi           text eol=crlf

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,49 @@
+name: Bug Report
+description: Let us know about a problem
+labels: [bug]
+body:
+- type: markdown
+  attributes:
+    value: |
+      Use this template to report identified problems. If the game suddenly crashed, and you need help identifying the cause of a crashreport, please use the Investigate Crashreport template instead.
+      
+      **Do not forget to give your issue a descriptive title.**
+- type: textarea
+  attributes:
+    label: Steps to reproduce
+    description: |
+      What did you do just before the problem appeared, or where can it be observed?
+      
+      If the issue occurs unreliably, please estimate the probability of the crash.
+    placeholder: |
+      1. Look at a cow
+      2. Wait for the cow to look back
+      3. The cow turns away after a minute
+      
+      The issue occurs approximately once every 10 attempts.
+      
+      Player inventory must be empty. Does not occur in multiplayer. Occurred inside a virtual machine.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Expected behaviour
+    description: |
+      What should happen?
+    placeholder: |
+      The cow should stare back indefinitely, because obviously it should, and because comedy.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Other information
+    description: What else can you tell us about this bug?
+  validations:
+    required: false
+- type: textarea
+  attributes:
+    label: Crashreport
+    description: If you have a relevant crashreport, paste the contents of the crashreport file here
+    render: text
+  validations:
+    required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Official Progressia Discord
+    url: https://discord.gg/TWuXbVmX23
+    about: Ask developers or community members for help

.github/ISSUE_TEMPLATE/crashreport.yml

@@ -0,0 +1,41 @@
+name: Investigate Crashreport
+description: Submit a crashreport to determine the problem
+labels: [bug, crashreport]
+body:
+- type: markdown
+  attributes:
+    value: |
+      Use this template to submit crashreports for initial analisys. If you don't have a crashreport, or you have a good understanding of the underlying cause, please use the Bug Report template instead.
+      
+      Crashreports can be found in `WORKING-DIRECTORY/crashreports` (take notice of the timestamp). `WORKING-DIRECTORY` is `C:\Users\<windows-user>\AppData\Roaming\Progressia` on Windows when using the installer.
+      
+      **Do not forget to give your issue a descriptive title.**
+- type: textarea
+  attributes:
+    label: Steps to reproduce
+    description: |
+      What did you do just before the crash? How could someone else reproduce it? What other context might be relevant?
+      
+      If the issue occurs unreliably, please estimate the probability of the crash.
+    placeholder: |
+      1. Enter a new world
+      2. Turn around
+      3. Wait 5 minutes
+      4. Game crashes half of the time
+      
+      Player inventory must be empty. Does not crash in multiplayer. Occurred inside a virtual machine.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Other information
+    description: What else can you tell us about this crashreport?
+  validations:
+    required: false
+- type: textarea
+  attributes:
+    label: Crashreport
+    description: Paste the contents of the crashreport file here
+    render: text
+  validations:
+    required: true

build.gradle

@@ -1,23 +1,29 @@
 /*
- * build.gradle for Progressia
+ * Build logic for Progressia
+ * build.gradle
+ * 
+ * Please refer to
+ * 
+ *     docs/building/BuildScriptReference.md
+ *     
+ * for user reference.
  */
 
 plugins {
-    // Apply the java-library plugin to add support for Java Library
-    id 'java-library'
+	id 'java'
 	
-    /*
-     * Uncomment the following line to enable the Eclipse plugin.
-     * This is only necessary if you don't use Buildship plugin from the IDE
-     */
-    //id 'eclipse'
+	// GrGit
+	//   A JGit wrapper for Groovy used to access git commit info
+	id 'org.ajoberstar.grgit' version '4.1.1'
 }
 
-java {
-	/*
-	 * We're Java 8 for now.
-	 * Why? As of 2020, most users have Oracle Java, which only supports Java 8.
+
+
+/*
+ * Configure Java version
  */
+
+java {
 	sourceCompatibility = JavaVersion.VERSION_1_8
 	targetCompatibility = JavaVersion.VERSION_1_8
 }
@@ -34,16 +40,27 @@ compileJava {
 	}
 }
 
+
+
+/*
+ * Set encoding
+ */
+
+compileJava {
+	options.encoding = 'utf8'
+}
+
+
+
 /*
  * Dependencies
  */
 
 repositories {
 	mavenCentral()
-    jcenter()
 
 	/*
-     * Specify Windcorp Maven repository
+	 * Windcorp Maven repository
 	 * Currently used by:
 	 *   - ru.windcorp.fork.io.github.java-graphics:glm:1.0.1
 	 */
@@ -53,7 +70,7 @@ repositories {
 dependencies {
 	// Google Guava
 	//   A generic utilities library
-    implementation 'com.google.guava:guava:30.0-jre'
+	implementation 'com.google.guava:guava:31.0.1-jre'
 
 	// Trove4j
 	//   Provides optimized Collections for primitive types
@@ -66,231 +83,311 @@ dependencies {
 
 	// Log4j
 	//   A logging library
-	implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.13.3'
-	implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.13.3'
+	implementation 'org.apache.logging.log4j:log4j-api:2.17.1'
+	implementation 'org.apache.logging.log4j:log4j-core:2.17.1'
 
 	// JUnit
 	//   A unit-testing library
-	testImplementation 'junit:junit:4.12'
+	testImplementation 'junit:junit:4.13.2'
 
-	// See LWJGL dependencies below
+	// Also see LWJGL dependencies in build_logic/lwjgl.gradle
 }
 
+
+
 /*
- * Progressia uses the following LWJGL libraries:
- *   - Core libraries
- *   - OpenGL
- *   - OpenAL
- *   - GLFW
- *   - STB
+ * Version resolution
  */
 
-/*
- *          LWJGL
- * (auto-generated script)
- *   ((here be dragons))
- */
+import org.ajoberstar.grgit.*
 
-import org.gradle.internal.os.OperatingSystem
+// Pattern: vMAJOR.MINOR.PATCH[-SUFFIX]
+project.ext.tagFormat = /^v(\d+)\.(\d+)\.(\d+)(-[\w\-]*)?$/
 
-project.ext.lwjglVersion = "3.2.3"
+String version_parseVersion(String tag, boolean increment) {
+	try {
 	
-switch (OperatingSystem.current()) {
-	case OperatingSystem.LINUX:
-		def osArch = System.getProperty("os.arch")
-		project.ext.lwjglNatives = osArch.startsWith("arm") || osArch.startsWith("aarch64")
-			? "natives-linux-${osArch.contains("64") || osArch.startsWith("armv8") ? "arm64" : "arm32"}"
-			: "natives-linux"
-		break
-	case OperatingSystem.MAC_OS:
-		project.ext.lwjglNatives = "natives-macos"
-		break
-	case OperatingSystem.WINDOWS:
-		project.ext.lwjglNatives = System.getProperty("os.arch").contains("64") ? "natives-windows" : "natives-windows-x86"
-		break
-}
+		def data = (tag =~ tagFormat)[0]
 		
-dependencies {
-	implementation platform("org.lwjgl:lwjgl-bom:$lwjglVersion")
+		def major = data[1]
+		def minor = data[2]
+		def patch = data[3] as int
+		def suffix = data[4] ?: ''
 		
-	implementation "org.lwjgl:lwjgl"
-	implementation "org.lwjgl:lwjgl-glfw"
-	implementation "org.lwjgl:lwjgl-openal"
-	implementation "org.lwjgl:lwjgl-opengl"
-	implementation "org.lwjgl:lwjgl-stb"
+		if (increment) {
+			def oldVersion = "$major.$minor.$patch$suffix"
+			patch++
+			def newVersion = "$major.$minor.$patch$suffix"
 			
-	runtimeOnly "org.lwjgl:lwjgl::$lwjglNatives"
-    runtimeOnly "org.lwjgl:lwjgl-glfw::$lwjglNatives"
-    runtimeOnly "org.lwjgl:lwjgl-openal::$lwjglNatives"
-    runtimeOnly "org.lwjgl:lwjgl-opengl::$lwjglNatives"
-    runtimeOnly "org.lwjgl:lwjgl-stb::$lwjglNatives"
-}
-
-// LWJGL END
-
-/*
- * Tasks
- */
-
-/*
- * Additional native libraries specification
- */
-
-project.ext.platforms = new HashSet<>()
-
-task addNativeDependencies {
-	doFirst {
-		def archs = project.ext.platforms
-		
-		switch (archs.size()) {
-		case 0:
-			println "Adding LWJGL native dependencies for local platform only:\n\t$lwjglNatives"
-			archs.add project.ext.lwjglNatives
-			break
-		case 1:
-			println "Adding LWJGL native dependencies for platform\n\t" + archs.get(0)
-			break
-		default:
-			println "Adding LWJGL native dependencies for platforms:\n\t" + archs.join("\n\t")
-		}
-		
-		if (project.ext.lwjglNatives.isEmpty()) println "WTF"
-		
-		dependencies {
-			archs.each { arch ->
-		        runtimeOnly "org.lwjgl:lwjgl::$arch"
-		        runtimeOnly "org.lwjgl:lwjgl-glfw::$arch"
-		        runtimeOnly "org.lwjgl:lwjgl-openal::$arch"
-		        runtimeOnly "org.lwjgl:lwjgl-opengl::$arch"
-		        runtimeOnly "org.lwjgl:lwjgl-stb::$arch"
-		    }
-	    }
-    }
-}
-
-compileJava.mustRunAfter addNativeDependencies // Make sure runtimeOnly has not been resolved
-
-task requestLinuxDependencies {
-    description 'Adds linux, linux-arm64 and linux-arm32 native libraries to built artifacts.'
-	doFirst {
-		project.ext.platforms.addAll(['natives-linux', 'natives-linux-arm64', 'natives-linux-arm32'])
-	}
-}
-task requestWindowsDependencies {
-    description 'Adds windows and windows-x86 native libraries to built artifacts.'
-	doFirst {
-		project.ext.platforms.addAll(['natives-windows', 'natives-windows-x86'])
-	}
-}
-task requestMacOSDependencies {
-    description 'Adds macos native libraries to built artifacts.'
-	doFirst {
-		project.ext.platforms.addAll(['natives-macos'])
-	}
-}
-
-def dependencySpecificationTasks = tasks.findAll { task -> task.name.startsWith('request') && task.name.endsWith('Dependencies') }
-
-task requestCrossPlatformDependencies {
-    description 'Adds native libraries for all available platforms to built artifacts.'
-	dependsOn dependencySpecificationTasks
-}
-
-addNativeDependencies.mustRunAfter dependencySpecificationTasks
-
-/*
- * Determines if the provided dependency should be packaged
- */
-def isDependencyRequested(String dep) {
-	if (dep.endsWith(".jar")) {
-		dep = dep.substring(0, dep.length() - ".jar".length())
-	}
-	
-	return !dep.contains("natives-") ||
-			project.ext.platforms.contains(dep.substring(dep.indexOf("natives-"), dep.length()))
-}
-
-/*
- * Manifest specification
- */
-
-task specifyLocalManifest {
-	dependsOn addNativeDependencies // Make sure all native dependencies are specified
-
-	doFirst {
-		def classPath = []
-		
-		configurations.runtimeClasspath.each {
-			if (isDependencyRequested(it.getName())) {
-				classPath.add("lib/" + it.getName())
+			logger.info "Version parsed from Git: $oldVersion, incremented to $newVersion"
+			return newVersion
 		} else {
-				println "\tRemoving from JAR classpath (not requested):  " + it.getName()
-			}
+			def newVersion = "$major.$minor.$patch$suffix"
+			logger.info "Version parsed from Git: $newVersion"
+			return newVersion
 		}
 		
-		if (classPath.size() == configurations.runtimeClasspath.size()) {
-			println "Nothing removed from JAR classpath"
-		}
-	
-		jar {
-		    manifest {
-		        attributes(
-		        	"Main-Class": "ru.windcorp.progressia.client.ProgressiaClientMain",
-		        	"Class-Path": configurations.runtimeClasspath.collect { "lib/" + it.getName() } .findAll { isDependencyRequested(it) } .join(' ')
-		        )
-		    }
-		}
+	} catch (any) {
+		logger.warn "Could not parse version from tag \"$tag\""
+		return tag
 	}
 }
 
-jar.dependsOn specifyLocalManifest
+Tag version_findRelevantTag(Grgit git) {
+	def tags = git.tag.list()
+	
+	def commits = [ git.head() ]
+	def visited = new HashSet<>()
+	
+	while (true) {
+		if (commits.isEmpty()) return null
+	
+		def nextCommits = new HashSet<>()
+		
+		def formatSpecificationPrinted = false
+		for (def commit : commits) {
+			def tag = tags.findAll { it.commit == commit } ?.max { it.dateTime }
+			
+			if (tag != null) {
+				if (tag.name ==~ tagFormat) {
+					return tag
+				} else {
+					if (!formatSpecificationPrinted) {
+						formatSpecificationPrinted = true
+						logger.info 'Expecting tag format: vMAJOR.MINOR.PATCH[-SUFFIX]'
+					}
+					logger.info 'Ignoring tag due to invalid format: {}', tag.name
+				}
+			}
+			
+			nextCommits.addAll commit.parentIds.collect(git.resolve.&toCommit)
+		}
+		
+		visited.addAll commits
+		nextCommits.removeAll visited
+		commits = nextCommits
+	}
+}
+
+task resolveVersion {
+	description 'Resolves version information from Git repository or project properties.'
+
+	doFirst {
+		
+		project.ext.commit = System.env.GIT_COMMIT
+		project.ext.branch = System.env.GIT_BRANCH
+		
+		try {
+			def git = Grgit.open(dir: project.projectDir)
+			
+			project.ext.commit = commit ?: git.head().id
+			project.ext.branch = branch ?: git.branch.current().name
+			
+			if (project.version != 'unspecified') {
+				// Leave version as-is
+			} else {
+			
+				// Resolve version from Git
+				def tag = version_findRelevantTag(git)
+				if (tag == null) {
+				
+					String suffix
+					if (project.hasProperty('buildId')) {
+						suffix = project.buildId;
+					} else {
+						suffix = java.time.ZonedDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern('yyyy_MM_dd'))
+					}
+					project.version = "999.0.0-$suffix"
+				
+					logger.warn 'Git repository does not contain an applicable tag, using dummy version {}\nSpecify version with -Pversion=1.2.3 or create a Git tag named v1.2.3', project.version
+					
+				} else {
+				
+					project.version = version_parseVersion(tag.name, tag.commit != git.head())
+					
+				}
+			
+			}
+		} catch (org.eclipse.jgit.errors.RepositoryNotFoundException e) {
+			if (project.version == 'unspecified') project.version = 'dev'
+			project.ext.commit = commit ?: '-'
+			project.ext.branch = branch ?: '-'
+		
+			logger.warn 'No Git repository found in project root, using dummy version {}\nSpecify version with -Pversion=1.2.3 or create a Git tag named v1.2.3', project.version
+		}
+		
+		if (branch.contains '/') {
+			// Strip remote - no one wants that
+			project.ext.branch = branch.takeAfter '/'
+		}
+		
+		if (!project.hasProperty('buildId')) {
+			project.ext.buildId = '-'
+		}
+	}
+	
+	doLast {
+		
+	}
+}
+
+
 
 /*
- * Library export
+ * Apply LWJGL logic
+ */
+apply from: 'build_logic/lwjgl.gradle'
+
+
+
+/*
+ * Copy libraries into build/libs/lib directory, next to Progressia.jar
  */
 
 task exportLibs(type: Sync) {
-	mustRunAfter addNativeDependencies
+	description 'Copies runtime libraries into a subdirectory next to the output JAR.'
 	
-    into libsDirectory.get().getAsFile().getPath() + "/lib"
-    exclude { !isDependencyRequested(it.getName()) }
-    from configurations.runtimeClasspath
+	jar.dependsOn exportLibs
+	dependsOn lwjgl_addNativesToRuntimeOnly
+
+	// from defined in configureManifest
+	into 'build/libs/lib'
 }
 
-jar.dependsOn(exportLibs)
+
 
 /*
- * Packaging
+ * Configure JAR manifest
  */
 
-task packageDebian(type: Exec) {
-    description 'Builds the project and creates a Debain package.'
-    group 'Progressia'
+task configureManifest {
+	description 'Populates JAR manifest with Main-Class, Class-Path and version metadata.'
 
-    dependsOn build
-    dependsOn requestLinuxDependencies
+	jar.dependsOn configureManifest
+	dependsOn resolveVersion
+	dependsOn lwjgl_addNativesToRuntimeOnly
 
-    commandLine './buildPackages.sh', 'debian'
+	doFirst {
+		def classPath = project.lwjgl.replaceNativesIn(configurations.runtimeClasspath)
 		
-    doLast {
-        println "Debian package available in build_packages/"
+		exportLibs.from classPath
+	
+		jar.manifest.attributes(
+			'Main-Class':                        'ru.windcorp.progressia.client.ProgressiaClientMain',
+			'Class-Path':                        classPath.collect { "lib/${java.net.URLEncoder.encode it.name}" } .join(' '),
+			
+			'Specification-Title':               'Progressia',
+			
+			'Implementation-Title':              'Progressia',
+			'Implementation-Version':            project.version,
+			'Implementation-Version-Git-Commit': project.commit,
+			'Implementation-Version-Git-Branch': project.branch,
+			'Implementation-Version-BuildId':    project.buildId,
+		)
 	}
 }
 
-task packageWindows(type: Exec) {
-    description 'Builds the project and creates a Windows installer.'
-    group 'Progressia'
+
+
+/*
+ * Packaging working directory configuration
+ */
+
+import java.nio.file.*
+import java.nio.file.attribute.*
+
+task deletePackagingDirs(type: Delete) {
+	description 'Deletes build/tmp/packaging directory.'
+	followSymlinks = false
+	delete 'build/tmp/packaging'
+}
+
+task linkBuildOutputForPackaging {
+	description 'Symlinks the contents of build/libs into packaging working directory.'
 	
     dependsOn build
-    dependsOn requestWindowsDependencies
+    mustRunAfter deletePackagingDirs
     
-    commandLine './buildPackages.sh', 'windows'
+    onlyIf { preparePackaging.ext.mode == 'symlink' }
+    
+	ext.from = 'build/libs'
+	ext.into = "build/tmp/packaging/workingDir/${ -> preparePackaging.ext.buildDest}"
+	
+	inputs.dir from
+	outputs.dir into
     
     doLast {
-        println "Windows installer available in build_packages/"
+		def fromPath = Paths.get from
+		def intoPath = Paths.get into
+    
+        Files.createDirectories intoPath
+        
+        Files.list(fromPath).each {
+			def fileName = it.fileName.toString()
+			
+			// Exclude all JARs except the current one
+			if (fileName ==~ "${project.name}.*\\.jar" && fileName != tasks.jar.archiveFileName.get())
+				return
+			
+            Files.createSymbolicLink intoPath.resolve(it.fileName), intoPath.relativize(it)
+        }
     }
 }
 
+task copyBuildOutputForPackaging(type: Copy) {
+	description 'Copies the contents of build/libs into packaging working directory.'
+
+    dependsOn build
+    mustRunAfter deletePackagingDirs
+    
+    onlyIf { preparePackaging.ext.mode == 'copy' }
+    
+    from 'build/libs'
+    filesMatching("${project.name}*.jar") {
+		include tasks.jar.archiveFileName.get()
+    }
+    into "build/tmp/packaging/workingDir/${ -> preparePackaging.ext.buildDest}"
+}
+
+task preparePackaging {
+	preparePackaging.ext.buildDest = ''
+	preparePackaging.ext.mode = 'symlink'
+	
+	dependsOn deletePackagingDirs
+	dependsOn linkBuildOutputForPackaging
+	dependsOn copyBuildOutputForPackaging
+}
+
+
+
+/*
+ * Apply all packaging scripts
+ */
+
+new File(projectDir, 'build_logic/packaging').list().each {
+    apply from: "build_logic/packaging/$it/script.gradle"
+}
+
+
+
+/*
+ * Ensure no more than one packaging task is scheduled
+ */
+ 
+gradle.taskGraph.whenReady { graph ->
+	if (graph.allTasks.count { it.name ==~ /package[^_]*/ } > 1) {
+		def offenders = graph.allTasks.findAll { it.name ==~ /package[^_]*/ }
+		throw new GradleException("Cannot execute multiple package tasks within a single build\n" +
+			"\tOffending tasks: $offenders")
+	}
+}
+
+
+
+/*
+ * Convenience build tasks
+ */
+
 task buildCrossPlatform {
 	description 'Builds the project including native libraries for all available platforms.'
 	group 'Progressia'
@@ -299,17 +396,17 @@ task buildCrossPlatform {
 	dependsOn build
 
 	doLast {
-        println "Native libraries for all platforms have been added"
+		logger.info 'Native libraries for all platforms have been added'
 	}
 }
 
 task buildLocal {
-    description "Builds the project including only native libraries for current platform ($lwjglNatives)."
+	description "Builds the project including only native libraries for current platform (${lwjgl.localArch})."
 	group 'Progressia'
 
 	dependsOn build
 
 	doLast {
-        println "Native libraries only for platform $lwjglNatives have been added"
+		logger.info "Native libraries only for platform ${lwjgl.localArch} have been added"
 	}
 }

buildPackages.sh

@@ -1,191 +0,0 @@
-#!/bin/bash
-
-#
-# Progressia
-# Copyright (C)  2020-2021  Wind Corporation and contributors
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-#
-
-echoerr() { echo "$@" 1>&2; }
-
-buildDebianPackage() {
-
-    # Commands that must be available to execute this action
-    requiredCommands='dpkg-deb fakeroot'
-
-    # Package name. Sync with control file manually!
-    name='progressia-techdemo'
-    # Version that the package will receive. Sync with control file manually!
-    version='1.0_all'
-
-    # This directory will be copied into $tmpDir
-    templateDirectory="build_packages/DEB/template"
-
-    # Files that must be present
-    requiredFiles="$templateDirectory/DEBIAN/control"
-
-    nameAndVersion="$name-$version"
-    tmpDir="build_packages/DEB/$nameAndVersion"
-    outputFile="build_packages/DEB/$nameAndVersion.deb"
-
-    echo "Checking environment to build Debian package"
-
-    for item in $requiredCommands; do
-        if command -v "$item" &> /dev/null; then
-            echo "- $item found"
-        else
-            echoerr "Command $item not found, cannot package"
-            exit 100
-        fi
-    done
-
-    for file in $requiredFiles; do
-        if ! [ -r "$file" ]; then
-            echoerr "$file is missing or not readable, cannot package"
-            exit 101
-        else
-            echo "- $file is present and readable"
-        fi
-    done
-
-    echo "Environment OK; packaging Debian package"
-    exitCode=0
-
-    {
-        shareDir="$tmpDir/usr/share/progressia"
-
-        mkdir -p "$tmpDir"                                           &&
-        mkdir -p "$shareDir"                                         &&
-        cp -r "$templateDirectory"/*      "$tmpDir"                  &&
-        cp -r 'build/libs/lib'            "$shareDir/lib"            &&
-        cp    'build/libs/Progressia.jar' "$shareDir/Progressia.jar" &&
-        echo "------ DPKG-DEB ------"                                &&
-        fakeroot dpkg-deb --build "$tmpDir"                          &&
-        echo "---- DPKG-DEB END ----"                                &&
-        mv "$outputFile" build_packages
-    } || {
-        echoerr "Could not create Debian package"
-        exitCode=1
-    }
-
-    {
-        if [ -d "$tmpDir" ]; then
-            rm -r "$tmpDir"
-        fi
-        echo "Cleaned up"
-    } || {
-        echoerr "Could not clean up after packaging Debian package"
-        exitCode=2
-    }
-
-    exit "$exitCode"
-}
-
-buildWindowsInstaller() {
-
-    # Commands that must be available to execute this action
-    requiredCommands='makensis'
-
-    # NSIS configuration file that must be present
-    configurationFile='build_packages/NSIS/ProgressiaInstaller.nsi'
-
-    # File that will be output
-    outputFile='build_packages/NSIS/ProgressiaInstaller.exe'
-
-    echo "Checking environment to build Windows installer"
-
-    for item in $requiredCommands; do
-        if command -v "$item" &> /dev/null; then
-            echo "- $item found"
-        else
-            echoerr "Command $item not found, cannot build"
-            exit 100
-        fi
-    done
-
-    if ! [ -r "$configurationFile" ]; then
-        echoerr "$configurationFile is missing or not readable, cannot build"
-        exit 101
-    else
-        echo "- $configurationFile is present and readable"
-    fi
-
-    echo "Environment OK; building Windows installer"
-    exitCode=0
-
-    {
-        cp -r 'build/libs/lib'            'build_packages/NSIS/lib'            &&
-        cp    'build/libs/Progressia.jar' 'build_packages/NSIS/Progressia.jar' &&
-        cp    'LICENSE'                   'build_packages/NSIS/LICENSE.txt'    &&
-        echo "------ NSIS ------"                                              &&
-        makensis "$configurationFile"                                          &&
-        echo "---- NSIS END ----"                                              &&
-        mv "$outputFile" build_packages
-    } || {
-        echoerr "Could not build Windows installer"
-        exitCode=1
-    }
-
-    {
-        if [ -d 'build_packages/NSIS/lib' ]; then
-            rm -r 'build_packages/NSIS/lib'
-        fi
-        if [ -e 'build_packages/NSIS/Progressia.jar' ]; then
-            rm 'build_packages/NSIS/Progressia.jar'
-        fi
-        if [ -e 'build_packages/NSIS/LICENSE.txt' ]; then
-            rm 'build_packages/NSIS/LICENSE.txt'
-        fi
-        echo "Cleaned up"
-    } || {
-        echoerr "Could not clean up after building Windows installer"
-        exitCode=2
-    }
-
-    exit "$exitCode"
-}
-
-printUsage() {
-    echoerr "Usage: $0 TARGET"
-    echoerr "    where TARGET is 'debian' or 'windows'"
-}
-
-if [ -n "$2" ]; then
-    echoerr "Too many arguments."
-    printUsage
-    exit 202
-fi
-
-case "$1" in
-"debian")
-    buildDebianPackage
-    ;;
-"windows")
-    buildWindowsInstaller
-    ;;
-"")
-    echoerr "No action specified"
-    printUsage
-    exit 200
-    ;;
-"--help" | "-help" | "help" | "?")
-    printUsage
-    ;;
-*)
-    echoerr "Unknown action '$1'"
-    printUsage
-    exit 201
-    ;;
-esac

build_logic/lwjgl.gradle

@@ -0,0 +1,149 @@
+/*
+ * Build logic for Progressia
+ * LWJGL dependency logic
+ */
+
+project.ext.lwjgl = new HashMap<>()
+
+// Version of LWJGL
+lwjgl.version = '3.3.0'
+
+/*
+ * Target platforms for current operation.
+ * This is filled in by the request* tasks. This is referenced by the addLwjglNatives task.
+ * When empty, current platform is assumed.
+ */
+lwjgl.targets = new HashSet<String>()
+
+// LWJGL components. To include org.lwjgl:lwjgl-foobar, add 'foobar' to this list.
+lwjgl.libraries = [
+	'opengl',
+	'glfw',
+	'openal',
+	'stb'
+]
+
+// Determine the architecture of the build environment
+import org.gradle.internal.os.OperatingSystem
+switch (OperatingSystem.current()) {
+	case OperatingSystem.LINUX:
+		def osArch = System.getProperty('os.arch')
+		lwjgl.localArch = osArch.startsWith('arm') || osArch.startsWith('aarch64')
+				? "linux-${osArch.contains('64') || osArch.startsWith('armv8') ? 'arm64' : 'arm32'}"
+				: 'linux'
+		break
+	case OperatingSystem.MAC_OS:
+		lwjgl.localArch = System.getProperty('os.arch').startsWith('aarch64') ? 'macos-arm64' : 'macos'
+		break
+	case OperatingSystem.WINDOWS:
+		def osArch = System.getProperty('os.arch')
+		lwjgl.localArch = osArch.contains('64')
+			? "windows${osArch.startsWith('aarch64') ? '-arm64' : ''}"
+			: 'windows-x86'
+		break
+	default:
+		logger.info "Unknown or unsupported OS type according to Gradle's org.gradle.internal.os.OperatingSystem: ${OperatingSystem.current()}"
+		break
+}
+
+configurations {
+	create 'lwjglNatives'
+}
+
+// Declare pure-Java dependencies
+dependencies {
+	// BOM
+	
+	def bom = platform("org.lwjgl:lwjgl-bom:${lwjgl.version}")
+	implementation bom
+	lwjglNatives bom
+	
+	// Core
+	implementation 'org.lwjgl:lwjgl'
+	// Local natives for core
+	runtimeOnly "org.lwjgl:lwjgl::natives-${lwjgl.localArch}"
+	
+	// Components
+	lwjgl.libraries.each { lib ->
+		implementation "org.lwjgl:lwjgl-$lib"
+		// Local natives for component
+		runtimeOnly "org.lwjgl:lwjgl-$lib::natives-${lwjgl.localArch}"
+	}
+	
+}
+
+/*
+ * Adds LWJGL native libraries to lwjglNatives configuration
+ */
+task lwjgl_addNativesToRuntimeOnly {
+	doFirst {
+		if (project.hasProperty('forceTargets')) {
+			try {
+				def oldTargets = lwjgl.targets.join(',')
+				
+				lwjgl.targets.clear()
+				lwjgl.targets.addAll project.forceTargets.split(',')*.trim().collect { it == 'local' ? lwjgl.localArch : it }
+				
+				logger.info 'Overriding selected platforms {} with {}', oldTargets, lwjgl.targets.join(',')
+			} catch (Exception e) {
+				throw new GradleException("Could not parse forceTargets \"${project.forceTargets}\", expecting platform-1,platform-2,local", e)
+			}
+		}
+	
+		if (lwjgl.targets.isEmpty()) {
+			logger.info 'Adding LWJGL native dependencies for local platform only: {}', lwjgl.localArch
+			lwjgl.targets.add lwjgl.localArch
+		} else {
+			logger.info 'Adding LWJGL native dependencies for platforms: {}', lwjgl.targets.sort().join(', ')
+		}
+		
+		if (lwjgl.targets.contains(null)) {
+			if (lwjgl.localArch != null) {
+				throw new GradleException("Requested local LWJGL natives; could not determine local architecture for OS ${OperatingSystem.current()} with os.arch ${System.getProperty('os.arch')}")
+			} else {
+				throw new GradleException("LWJGL targets resolved to ${lwjgl.targets}")
+			}
+		}
+		
+		dependencies {
+			lwjgl.targets.each { target ->
+				lwjglNatives "org.lwjgl:lwjgl::natives-$target"
+				lwjgl.libraries.each { lib ->
+					lwjglNatives "org.lwjgl:lwjgl-$lib::natives-$target"
+				}
+			}
+		}
+	}
+}
+
+// Replaces LWJGL natives in the given configuration with the requested ones
+lwjgl.replaceNativesIn = { config ->
+	new ArrayList<File>().tap {
+		addAll config
+		removeIf { it.name ==~ /.*lwjgl.*natives.*/ }
+		addAll project.configurations.lwjglNatives
+	}
+}
+
+task requestCrossPlatformDependencies {
+	description 'Adds LWJGL natives for all available platforms.'
+	
+	lwjgl_addNativesToRuntimeOnly.mustRunAfter requestCrossPlatformDependencies
+}
+
+def requestTask(String name, String... targets) {
+	def theTask = task "request${name}Dependencies"
+	
+	theTask.doFirst {
+		lwjgl.targets.addAll targets
+	}
+	
+	theTask.description "Adds LWJGL natives for $name (${targets.join(', ')})."
+
+	requestCrossPlatformDependencies.dependsOn theTask
+	lwjgl_addNativesToRuntimeOnly.mustRunAfter theTask
+}
+
+requestTask 'Linux', 'linux', 'linux-arm32', 'linux-arm64'
+requestTask 'Windows', 'windows', 'windows-arm64', 'windows-x86'
+requestTask 'MacOS', 'macos', 'macos-arm64'

build_logic/packaging/deb/script.gradle

@@ -0,0 +1,42 @@
+task packageDeb_processResources(type: Copy) {
+	dependsOn resolveVersion
+	dependsOn preparePackaging
+
+	from 'src/packaging/deb'
+	
+	filesMatching('DEBIAN/control') {
+		expand(version: { -> project.version})
+	}
+	
+	into 'build/tmp/packaging/workingDir'
+}
+
+task packageDeb_configure() {
+	preparePackaging.mustRunAfter packageDeb_configure
+
+	doLast {
+		tasks.preparePackaging.ext.buildDest = 'usr/share/progressia'
+		tasks.preparePackaging.ext.mode = 'copy'
+	}
+}
+
+task packageDeb(type: Exec) {
+	description 'Builds the project and creates a Debian package.'
+	group 'Progressia'
+	
+	dependsOn packageDeb_configure
+	dependsOn requestLinuxDependencies
+	dependsOn build
+	dependsOn preparePackaging
+	
+	dependsOn packageDeb_processResources
+	
+	doFirst {
+		mkdir 'build/packages'
+	}
+	
+	executable 'dpkg-deb'
+	args '--root-owner-group'
+	args '--build', 'build/tmp/packaging/workingDir'
+	args 'build/packages'
+}

build_logic/packaging/nsis/script.gradle

@@ -0,0 +1,54 @@
+task packageNsis_processResources(type: Copy) {
+	dependsOn preparePackaging
+
+	from ('src/packaging/nsis') {
+		exclude 'left_side.png'
+	}
+	from('LICENSE') {
+		rename 'LICENSE', 'LICENSE.txt'
+	}
+	into 'build/tmp/packaging/workingDir'
+}
+
+task packageNsis_generateIcon(type: Exec) {
+	mustRunAfter preparePackaging
+	
+	executable 'convert'
+	args files('src/main/resources/assets/icons/*.original.png').files*.path
+	args 'build/tmp/packaging/workingDir/logo.ico'
+}
+
+task packageNsis_generateLeftSide(type: Exec) {
+	mustRunAfter preparePackaging
+	
+	executable 'convert'
+	args 'src/packaging/nsis/left_side.png'
+	args '-alpha', 'off'
+	args 'BMP3:build/tmp/packaging/workingDir/left_side.bmp'
+}
+
+task packageNsis(type: Exec) {
+	description 'Builds the project and creates a Windows NSIS installer.'
+	group 'Progressia'
+	
+	dependsOn requestWindowsDependencies
+	dependsOn build
+	dependsOn resolveVersion
+	dependsOn preparePackaging
+	
+	dependsOn packageNsis_processResources
+	dependsOn packageNsis_generateIcon
+	dependsOn packageNsis_generateLeftSide
+	
+	doFirst {
+		mkdir 'build/packages'
+	}
+	
+	executable 'makensis'
+	args '-NOCONFIG'
+	args "-DPROJECT_NAME=${project.name}"
+	args "-DPROJECT_VERSION=${ -> project.version}"
+	args "-DMAIN_JAR_FILE=${ -> project.tasks.jar.archiveFileName.get()}"
+	args "-DOUTPUT_DIR=${project.buildDir.absolutePath}/packages"
+	args 'build/tmp/packaging/workingDir/config.nsi'
+}

build_logic/packaging/zip/script.gradle

@@ -0,0 +1,45 @@
+task packageZip_processResources(type: Copy) {
+	dependsOn preparePackaging
+
+	from ('src/packaging/zip') {
+		filesMatching('start.*') {
+			filter(
+				org.apache.tools.ant.filters.ReplaceTokens,
+				tokens: [mainJarFile: project.tasks.jar.archiveFileName.get()]
+			)
+		}
+	}
+	from ('src/main/resource/assets/icons/logo256.original.png') {
+		rename 'logo256.original.png', 'logo.png'
+	}
+	from('LICENSE') {
+		rename 'LICENSE', 'LICENSE.txt'
+	}
+	into 'build/tmp/packaging/workingDir'
+}
+
+task packageZip(type: Zip) {
+	description 'Builds the project and creates a cross-platform ZIP package.'
+	group 'Progressia'
+	
+	dependsOn resolveVersion
+	dependsOn requestCrossPlatformDependencies
+	dependsOn build
+	dependsOn preparePackaging
+	
+	dependsOn packageZip_processResources
+	
+	archiveBaseName = project.name
+	archiveAppendix = 'universal'
+	
+	doFirst {
+		archiveVersion = project.version
+	}
+	
+	doFirst {
+		mkdir 'build/packages'
+	}
+	
+	from 'build/tmp/packaging/workingDir'
+	destinationDirectory = file('build/packages')
+}

docs/ProgressiaRegion.md

@@ -0,0 +1,12 @@
+# Progressia Region File
+## Description
+The `.progressia_region` file type is used for all region files in the game Progressia. Each region file contains a cube of 16x16x16 chunks.
+## Header
+The header of the file is 16 400 bytes. Every file starts with the string byte sequence `\x50\x52\x4F\x47` (UTF-8 for `PROG`), followed with the three integer values of the region position, in region coordinates. After this, there is exactly 16KiB of space in the header, which stores the offsets to the chunks' data. This space holds an integer, 4 bytes, for each chunk in the region. The integer value starts at 0 for every chunk, and is changed to the location of the chunk data once created. These are indexed in order by flattening the 3D in-chunk coordinates into a number between 0 and 4095 according to the formula `offset = 256*x+ 16*y + z` for chunk at (x, y, z). To convert from this offset value to the offset in bytes, use `byte_offset = 16400 + 64*n`.
+## Sectors
+Sectors are what is used to store chunk data, and are not linear, but are followed until they reach an ending block. Each is 64 bytes, which is used in the header section to find the byte offset. Each sector starts with a identification byte, followed by the sector data.
+
+ 0. Ending - This sector is empty, and marks the end of the chunk data (This may change in the future.
+ 1. Data - This sector contains chunk data for a single chunk. The second byte of this sector contains a counter byte, which is a form of "checksum" to make sure that the program is reading the proper sectors in order. This starts at 0 for the first data sector and increments by one for each new data sector.
+ 2. Partition Link - This sector only contains another offset value, which is where the next sector is. This allows for infinite chunk size, avoiding "chunk dupes" as were present in Minecraft without reverting any chunks.
+ 3. Bulk Data - These would be used for many chunks in the same region that contain exactly the same data, e.g. all solid chunks underground. Exists so the program knows not to overwrite them, and just make new chunk data if modified. Not yet implemented.

docs/building/BuildGuide.md

@@ -1,8 +1,10 @@
 # Build Guide
 
-This document is a guide to building Progressia from source.
+This document is a guide to building Progressia from source. For quick reference, see
+[Build Script Reference](BuildScriptReference.md).
 
-Compilation should be possible on all platforms that support JDK 8 or later, however, packaging scripts require Bash.
+Compilation should be possible on all platforms that support JDK 8 or later, however, packaging scripts require
+additional programs in `PATH`.
 
 This guide assumes you are familiar with using a terminal or Windows Command Prompt or PowerShell.
 
@@ -141,8 +143,8 @@ build.
 Some users might find the need to build for a specific set of platforms. Inclusion of GNU/Linux, Windows or MacOS
 dependencies individually can be controlled with the following arguments to the `./gradlew build` command:
 - `requestLinuxDependencies` requests that `natives-linux`, `natives-linux-arm32` and `natives-linux-arm64` binaries are included;
-- `requestWindowsDependencies` requests that `natives-windows` and `natives-windows-x86` binaries are included;
-- `requestMacOSDependencies` requests that `natives-macos` binaries are included.
+- `requestWindowsDependencies` requests that `natives-windows`, `natives-windows-arm64` and `natives-windows-x86` binaries are included;
+- `requestMacOSDependencies` requests that `natives-macos`, `natives-macos-arm64` binaries are included.
 These requests can be applied in any combination. For example, the following command produces a build containing only
 GNU/Linux and Windows natives:
 
@@ -150,54 +152,46 @@ GNU/Linux and Windows natives:
 ./gradlew build requestLinuxDependencies requestWindowsDependencies
 ```
 
-For finer control please edit `build.gradle` manually by adding the desired natives to the `project.ext.platforms` set like so:
-
-```
-project.ext.platforms = new HashSet<>()
-project.ext.platforms.add 'natives-windows-x86'
-```
-
 ## Packaging
 
-A Debian package and a Windows installer can be created automatically on systems that support Bash. These tasks are delegated
-by Gradle to `buildPackages.sh` in repository root. This script checks the environment and assembles the requested output; the
-resulting files are moved into `build_packages`.
+A universal ZIP distribution, a Debian package and a Windows NSIS installer may be created automatically by the build
+script.
+
+### Creating a universal ZIP package
+
+A universal cross-platform ZIP archive can be created with the following Gradle task:
+
+```
+./gradlew packageZip
+```
+
+Gradle will then build all artifacts necessary to run the game on all available platforms and package game files,
+libraries, launch scripts, etc. into a compressed ZIP archive.
+
+The resulting file can be found in `build/packages/`
 
 ### Creating a Debian package
 
 A Debian package can be created with the following Gradle task:
 
 ```
-./gradlew packageDebian
+./gradlew packageDeb
 ```
 
 Gradle will then build all artifacts necessary to run the game on GNU/Linux (all three architectures) and invoke
-`./buildPackages.sh debian`. Commands `dpkg-deb` and `fakeroot` must be available in system path in order to build the package.
+`dpkg-deb`. Commands `dpkg-deb` must be available in system path in order to build the package.
 
 ### Creating a Windows installer
 
-A Windows installer can be created with the following Gradle task:
+A Windows NSIS installer can be created with the following Gradle task:
 
 ```
-./gradlew packageWindows
+./gradlew packageNsis
 ```
 
 Gradle will then build all artifacts necessary to run the game on Windows (both x64 and x86 architectures) and invoke
-`./buildPackages.sh windows`.
+`makensis`.
 
-Windows installers are implemented with [NSIS](https://nsis.sourceforge.io/). Command `makensis` must be available in system
-path in order to build the installer.
-
-## Gradle tasks summary
-
-- `buildLocal` – creates a build optimized for current platform. Use this to quickly build the game during development.
-- `buildCrossPlatform` – creates a build that supports all known architectures. Use this to build a universal version of the game.
-- `build` – currently a synonym of `buildLocal`; creates a default build.
-- `packageDebian` – creates a Debian package. Do not invoke together with `packageWindows`.
-- `packageWindows` – creates a Windows installer. Do not invoke together with `packageDebian`.
-- `requestLinuxDependencies` – requests that `natives-linux`, `natives-linux-arm32` and `natives-linux-arm64` binaries are included when building.
-- `requestWindowsDependencies` – requests that `natives-windows` and `natives-windows-x86` binaries are included when building.
-- `requestMacOSDependencies` – requests that `natives-macos` binaries are included when building.
-- `requestCrossPlatformDependencies` – requests that all binaries are included when building.
-
-All other basic and Java-related Gradle tasks are available as well.
+Windows installers are implemented with [NSIS](https://nsis.sourceforge.io/). [ImageMagick](https://imagemagick.org),
+a command-line image editing tool, is used to generate some assets for the installer. Commands `makensis` and
+`convert` (from ImageMagick) must be available in system path in order to build the installer.

docs/building/BuildScriptReference.md

@@ -0,0 +1,112 @@
+# Build Script Reference
+
+This document is a user's reference for the build script of Progressia. For a beginner-friendly guide, see
+[Build Guide](BuildGuide.md).
+
+## Gradle tasks summary
+
+- `buildLocal` – creates a build optimized for current platform. Use this to quickly build the game during development.
+- `buildCrossPlatform` – creates a build that supports all known architectures. Use this to build a universal version of the game.
+- `build` – currently a synonym of `buildLocal`; creates a default build.
+- `packageZip` – creates a universal ZIP. Incompatible with other `package` tasks.
+- `packageDeb` – creates a Debian package. Incompatible with other `package` tasks.
+- `packageNsis` – creates a Windows NSIS installer. Incompatible with other `package` tasks.
+- `requestLinuxDependencies` – requests that `natives-linux`, `natives-linux-arm32` and `natives-linux-arm64` binaries are included when building.
+- `requestWindowsDependencies` – requests that `natives-windows`, `natives-windows-arm64` and `natives-windows-x86` binaries are included when building.
+- `requestMacOSDependencies` – requests that `natives-macos` and `natives-macos-arm64` binaries are included when building.
+- `requestCrossPlatformDependencies` – requests that all binaries are included when building.
+
+To execute a task, run `./gradlew <task-name>`.
+
+`build`-type tasks output the executable JAR and all libraries required at runtime into `build/libs`. `package`-type
+tasks output packages into `build/packages`.
+
+## Packaging tasks
+
+Some packaging tasks require additional software in `PATH`.
+
+| Task          | Commands required in `PATH`              |
+|---------------|------------------------------------------|
+| `packageDeb`  | `dpkg-deb`                               |
+| `packageZip`  | _none_                                   |
+| `packageNsis` | `makensis`, `convert` (from ImageMagick) |
+
+## Version and metadata
+
+### Version scheme
+
+Progressia builds are identified by four parameters: version, Git commit, Git branch and build ID.
+
+Versions roughly follow [semantic versioning](https://semver.org/spec/v2.0.0.html), with each version fitting the
+`MAJOR.MINOR.PATCH[-SUFFIX]` pattern. Depending on the build environment (see below), version is either "real" with
+no metadata (e.g. `0.43.2` or `1.2.1-beta`) or a dummy fallback with build metadata (e.g. `999.0.0-2021_07_23` or
+`999.0.0-WJ3`).
+
+### Version detection
+
+Build script considers three scenarios when determining the version:
+
+1. `version` project property is set explicitly. This may be done in a variety of ways, for example with command line
+argument `-Pversion=1.2.3`
+(see [Gradle docs](https://docs.gradle.org/current/userguide/build_environment.html#sec:project_properties))
+2. Local Git repository is found, and HEAD is tagged appropriately: version is the tag name with leading `v`
+stripped. Example: `v1.2.3` is version `1.2.3`
+3. Local Git repository is found, and some ancestor of HEAD is tagged appropriately: version is the tag name with
+leading `v` stripped and PATCH incremented by one. Example: `v1.2.3` is version `1.2.4`
+
+Tags not named like `vMAJOR.MINOR.PATCH[-SUFFIX]` are ignored for cases 2 and 3.
+
+In all other cases, a fallback dummy value is used for version, appended with build ID or current date.
+
+### Git metadata
+
+Git commit is determined from `GIT_COMMIT` environment variable if it exists, or the state of the local Git
+repository, if any, or `-`.
+
+Git branch is determined from `GIT_BRANCH` environment variable if it exists, or the state of the local Git
+repository, if any, or `-`.
+
+The names of the environment variables are picked to assist Jenkins builds.
+
+### Build ID
+
+Build ID uniquely identifies artifacts produced by automated build systems. Build ID must be provided explicitly; it
+is `-` unless specified otherwise.
+
+The proposed scheme for naming build IDs is `<builder><build-system><build attempt no.>`. For example, builds
+executed by WindCorp Jenkins suite have build IDs like `WJ3` or `WJ142`.
+
+Build ID may be set with `buildId` project property. This may be done in a variety of ways, for example with command
+line argument `-PbuildId=WJ3`
+(see [Gradle docs](https://docs.gradle.org/current/userguide/build_environment.html#sec:project_properties)).
+
+## Native libraries
+
+LWJGL uses native libraries. Build script declares platform-specific dependencies based on the set of target
+platforms, `project.ext.lwjgl.targets` (aka `lwjgl.targets`). These dependencies are added to `runtimeOnly`
+configuration.
+
+When this set is empty, the script selects natives for current platform. Otherwise, all platforms in the set are
+included.
+
+`lwjgl.targets` is populated automatically by packaging tasks and by `buildCrossPlatform`. To add extra targets,
+``requestXxxDependencies` tasks may be used.
+
+Target selection mechanism may be overridden with `forceTargets` project property. This may be done in a variety of
+ways, for example with command line argument `-PforceTargets=windows-x86,local`
+(see [Gradle docs](https://docs.gradle.org/current/userguide/build_environment.html#sec:project_properties)). The
+value is a comma-separated list of target architectures. `local` target will be replaced with the automatically
+detected current architecture.
+
+### Available targets
+
+| Name            | Task                         |
+|-----------------|------------------------------|
+| `linux`         | `requestLinuxDependencies`   |
+| `linux-arm32`   | `requestLinuxDependencies`   |
+| `linux-arm64`   | `requestLinuxDependencies`   |
+| `windows`       | `requestWindowsDependencies` |
+| `windows-arm64` | `requestWindowsDependencies` |
+| `windows-x86`   | `requestWindowsDependencies` |
+| `macos`         | `requestMacOSDependencies`   |
+| `macos-arm64`   | `requestMacOSDependencies`   |

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,78 +17,113 @@
 #
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
+APP_BASE_NAME=${0##*/}
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -97,7 +132,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
+    JAVACMD=java
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -105,79 +140,95 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=`expr $i + 1`
-    done
-    case $i in
-        0) set -- ;;
-        1) set -- "$args0" ;;
-        2) set -- "$args0" "$args1" ;;
-        3) set -- "$args0" "$args1" "$args2" ;;
-        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=`save "$@"`
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
 
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -29,6 +29,9 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
@@ -37,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -51,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -61,28 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell

src/main/java/ru/windcorp/jputil/ConstantsMapException.java

@@ -0,0 +1,45 @@
+/*
+ * JPUtil
+ * Copyright (C)  2019-2021  OLEGSHA/Javapony and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package ru.windcorp.jputil;
+
+public class ConstantsMapException extends RuntimeException {
+
+	private static final long serialVersionUID = -4298704891780063127L;
+
+	public ConstantsMapException() {
+
+	}
+
+	public ConstantsMapException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+		super(message, cause, enableSuppression, writableStackTrace);
+	}
+
+	public ConstantsMapException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+	public ConstantsMapException(String message) {
+		super(message);
+	}
+
+	public ConstantsMapException(Throwable cause) {
+		super(cause);
+	}
+
+}

src/main/java/ru/windcorp/jputil/IntConstantsMap.java

@@ -0,0 +1,307 @@
+/*
+ * JPUtil
+ * Copyright (C)  2019-2022  OLEGSHA/Javapony and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package ru.windcorp.jputil;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.Set;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.IntPredicate;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
+
+public class IntConstantsMap {
+
+	private final Map<Integer, String> namesByValue;
+	private final Map<String, Integer> valuesByName;
+
+	protected IntConstantsMap(Map<Integer, String> namesByValue, Map<String, Integer> valuesByName) {
+		this.namesByValue = namesByValue;
+		this.valuesByName = valuesByName;
+	}
+	
+	public int getValue(String name) {
+		Integer value = valuesByName.get(name);
+		if (value == null) {
+			throw new NoSuchElementException("No constant with name " + name);
+		}
+		return value.intValue();
+	}
+	
+	public boolean hasConstant(String name) {
+		return valuesByName.containsKey(name);
+	}
+	
+	public String getName(int value) {
+		String name = namesByValue.get(value);
+		if (name == null) {
+			throw new NoSuchElementException("No constant with value " + value);
+		}
+		return name;
+	}
+	
+	public boolean hasConstant(int value) {
+		return namesByValue.containsKey(value);
+	}
+	
+	public Map<String, Integer> getAll() {
+		return valuesByName;
+	}
+	
+	@Override
+	public String toString() {
+		return valuesByName.toString();
+	}
+
+	public static Builder from(Class<?> clazz) {
+		return new Builder(clazz);
+	}
+
+	public static class Builder {
+
+		@FunctionalInterface
+		public static interface Filter {
+			boolean test(String name, int value);
+		}
+		
+		public class ConstantSpec {
+			public String name;
+			public int value;
+			
+			public void drop() {
+				if (!extra.contains(name)) {
+					name = null;
+				}
+			}
+		}
+
+		private final List<Consumer<ConstantSpec>> transforms = new ArrayList<>();
+		private final Set<String> extra = new HashSet<>();
+
+		private final Class<?> source;
+
+		public Builder(Class<?> source) {
+			this.source = source;
+		}
+		
+		public Builder apply(Consumer<ConstantSpec> transform) {
+			transforms.add(transform);
+			return this;
+		}
+
+		public Builder only(Filter filter) {
+			return apply(s -> {
+				if (!filter.test(s.name, s.value)) {
+					s.drop();
+				}
+			});
+		}
+
+		public Builder only(Predicate<String> nameFilter) {
+			return apply(s -> {
+				if (!nameFilter.test(s.name)) {
+					s.drop();
+				}
+			});
+		}
+
+		public Builder onlyValued(IntPredicate valueFilter) {
+			return apply(s -> {
+				if (!valueFilter.test(s.value)) {
+					s.drop();
+				}
+			});
+		}
+
+		public Builder regex(String regex) {
+			return only(Pattern.compile(regex).asPredicate());
+		}
+
+		public Builder prefix(String prefix) {
+			return only(n -> n.startsWith(prefix) && n.length() > prefix.length());
+		}
+
+		public Builder exclude(Filter filter) {
+			return only((n, v) -> !filter.test(n, v));
+		}
+
+		public Builder exclude(Predicate<String> nameFilter) {
+			return only(nameFilter.negate());
+		}
+
+		public Builder exclude(String... names) {
+			Set<String> excluded = new HashSet<>();
+			for (String name : names) {
+				excluded.add(name);
+			}
+			return exclude(excluded::contains);
+		}
+
+		public Builder excludeRegex(String... nameRegexes) {
+			List<Predicate<String>> tests = new ArrayList<>();
+			for (String regex : nameRegexes) {
+				tests.add(Pattern.compile(regex).asPredicate());
+			}
+			return only((n, v) -> {
+				for (Predicate<String> test : tests) {
+					if (test.test(n)) {
+						return false;
+					}
+				}
+
+				return true;
+			});
+		}
+
+		public Builder extra(String... names) {
+			for (String name : names) {
+				extra.add(name);
+			}
+			return this;
+		}
+		
+		public Builder rename(Function<String, String> renamer) {
+			apply(s -> {
+				s.name = renamer.apply(s.name);
+			});
+			return this;
+		}
+		
+		public Builder stripPrefix(String prefix) {
+			return apply(s -> {
+				if (s.name.startsWith(prefix)) {
+					s.name = s.name.substring(prefix.length());
+				} else if (extra.contains(s.name)) {
+					return;
+				} else {
+					s.drop();
+				}
+			});
+		}
+
+		public IntConstantsMap scan() {
+			return build(true);
+		}
+
+		public IntConstantsMap scanAll() {
+			return build(false);
+		}
+
+		private IntConstantsMap build(boolean onlyPublic) {
+			Map<Integer, String> namesByValue = new HashMap<>();
+			Map<String, Integer> valuesByName = new HashMap<>();
+
+			BiConsumer<String, Integer> putter = (name, value) -> {
+				if (namesByValue.containsKey(value)) {
+					throw newDuplicateException("value", value, name, namesByValue.get(value));
+				}
+				if (valuesByName.containsKey(name)) {
+					throw newDuplicateException("name", name, value, valuesByName.get(name));
+				}
+				namesByValue.put(value, name);
+				valuesByName.put(name, value);
+			};
+
+			try {
+				for (Field field : source.getDeclaredFields()) {
+					processField(field, putter, onlyPublic);
+				}
+			} catch (IllegalAccessException e) {
+				throw new ConstantsMapException(e);
+			}
+
+			return new IntConstantsMap(
+				Collections.unmodifiableMap(namesByValue),
+				Collections.unmodifiableMap(valuesByName)
+			);
+		}
+
+		private void processField(Field field, BiConsumer<String, Integer> putter, boolean onlyPublic)
+			throws IllegalAccessException {
+			if (!Modifier.isStatic(field.getModifiers())) {
+				return;
+			}
+			if (!Modifier.isFinal(field.getModifiers())) {
+				return;
+			}
+
+			boolean clearAccessible = false;
+			if (!Modifier.isPublic(field.getModifiers())) {
+				if (onlyPublic) {
+					return;
+				} else if (!isAccessibleFlagSet(field)) {
+					field.setAccessible(true);
+					clearAccessible = true;
+				}
+			}
+
+			try {
+
+				ConstantSpec spec = new ConstantSpec();
+				spec.name = field.getName();
+				spec.value = field.getInt(null);
+				
+				for (Consumer<ConstantSpec> t : transforms) {
+					t.accept(spec);
+					if (spec.name == null) {
+						return;
+					}
+				}
+				
+				putter.accept(spec.name, spec.value);
+
+			} finally {
+				if (clearAccessible) {
+					field.setAccessible(false);
+				}
+			}
+		}
+		
+		/*
+		 * Yes, this method exists only so that neither Java 8 nor Java 9 complain about deprecation.
+		 */
+		@Deprecated
+		private boolean isAccessibleFlagSet(Field f) {
+			return f.isAccessible();
+		}
+
+		private ConstantsMapException newDuplicateException(String what, Object common, Object current, Object old) {
+			return new ConstantsMapException(
+				String.format(
+					"Duplicate %1$s: %2$s -> %3$s and %2$s -> %4$s",
+					what,
+					common,
+					current,
+					old
+				)
+			);
+		}
+
+	}
+
+}

src/main/java/ru/windcorp/progressia/Progressia.java

@@ -18,6 +18,177 @@
 
 package ru.windcorp.progressia;
 
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+import org.apache.logging.log4j.LogManager;
+
+import ru.windcorp.progressia.common.util.crash.CrashReports;
+
+/**
+ * A class providing access to build metadata.
+ */
 public class Progressia {
 
+	private static final String NAME = "Progressia";
+	private static String version;
+	private static String gitCommit;
+	private static String gitBranch;
+	private static String buildId;
+
+	static {
+		try {
+			Manifest manifest = findManifest();
+
+			if (manifest == null) {
+				setDevelopmentMetadata();
+				LogManager.getLogger().info(
+					"Manifest with Specification-Title not found. "
+						+ "Either you are in a development environment or something has gone horribly wrong with classloaders."
+				);
+			} else {
+				fillMetadata(manifest);
+			}
+		} catch (Throwable t) {
+			CrashReports.crash(t, "Something went wrong while loading metadata");
+		}
+	}
+
+	private static Manifest findManifest() {
+		try {
+			Enumeration<URL> resources = Progressia.class.getClassLoader().getResources("META-INF/MANIFEST.MF");
+			Collection<IOException> exceptions = new ArrayList<>();
+
+			while (resources.hasMoreElements()) {
+				URL url = resources.nextElement();
+
+				try {
+
+					Manifest manifest = new Manifest(url.openStream());
+					Attributes mainAttributes = manifest.getMainAttributes();
+					if (NAME.equals(mainAttributes.getValue("Specification-Title"))) {
+						return manifest;
+					}
+
+				} catch (IOException e) {
+					exceptions.add(e);
+				}
+			}
+
+			if (exceptions.isEmpty()) {
+				return null;
+			}
+
+			IOException scapegoat = null;
+			for (IOException e : exceptions) {
+				if (scapegoat == null) {
+					scapegoat = e;
+				} else {
+					scapegoat.addSuppressed(e);
+				}
+			}
+
+			throw CrashReports.report(scapegoat, "Could not read manifest");
+		} catch (IOException e) {
+			throw CrashReports.report(e, "Could not read manifest");
+		}
+	}
+
+	private static void setDevelopmentMetadata() {
+		version = "dev";
+		gitCommit = "-";
+		gitBranch = "-";
+		buildId = "-";
+	}
+
+	private static void fillMetadata(Manifest manifest) {
+		version = getAttributeOrCrash(manifest, "Implementation-Version");
+		gitCommit = getAttributeOrCrash(manifest, "Implementation-Version-Git-Commit");
+		gitBranch = getAttributeOrCrash(manifest, "Implementation-Version-Git-Branch");
+		buildId = getAttributeOrCrash(manifest, "Implementation-Version-BuildId");
+	}
+
+	private static String getAttributeOrCrash(Manifest manifest, String key) {
+		String result = manifest.getMainAttributes().getValue(key);
+		if (result == null) {
+			throw CrashReports.report(null, "Manifest exists but attribute " + key + " not found");
+		}
+		return result;
+	}
+
+	public static String getName() {
+		return NAME;
+	}
+
+	/**
+	 * Returns the version of the game as a String. Version data is retrieved
+	 * from a {@code META-INF/MANIFEST.MF} file located in the main JAR. Version
+	 * format depends on way the game was built:
+	 * <ul>
+	 * <li><code>dev</code> if no matching manifest was found, e.g. when launching from an IDE</li>
+	 * <li>The value of <code>Implementation-Version</code> specified in the manifest:
+	 * <ul>
+	 * <li>[Stage-]Major.Minor.Patch, e.g. <code>alpha-0.3.2</code> or <code>1.4.2</code>, for released versions</li>
+	 * <li>BuildId, e.g. <code>WJ7</code>, for snapshots built by automation systems</li>
+	 * <li>YYYY-MM-DD, e.g. <code>2021-12-32</code>, for snapshots built manually</li>
+	 * </ul>
+	 * </li>
+	 * </ul>
+	 * 
+	 * @return the version
+	 */
+	public static String getVersion() {
+		return version;
+	}
+	
+	public static String getFullerVersion() {
+		if (isDefaultGitBranch() || "-".equals(gitBranch)) {
+			return version;
+		} else {
+			return String.format("%s/%s", version, gitBranch);
+		}
+	}
+	
+	/**
+	 * @return the buildId or <code>"-"</code>
+	 */
+	public static String getBuildId() {
+		return buildId;
+	}
+	
+	/**
+	 * @return the Git commit or <code>"-"</code>
+	 */
+	public static String getGitCommit() {
+		return gitCommit;
+	}
+	
+	public static String getGitCommitShort() {
+		if (gitCommit == null || "-".equals(gitCommit)) {
+			return gitCommit;
+		}
+		
+		return gitCommit.substring(0, Math.min(7, gitCommit.length()));
+	}
+	
+	/**
+	 * @return the Git branch or <code>"-"</code>
+	 */
+	public static String getGitBranch() {
+		return gitBranch;
+	}
+	
+	public static boolean isDefaultGitBranch() {
+		return "master".equals(gitBranch) || "main".equals(gitBranch);
+	}
+	
+	public static String getFullVersion() {
+		return String.format("%s/%s/%s/%s", version, gitBranch, getGitCommitShort(), buildId);
+	}
+
 }

src/main/java/ru/windcorp/progressia/ProgressiaLauncher.java

@@ -18,6 +18,8 @@
 
 package ru.windcorp.progressia;
 
+import org.apache.logging.log4j.LogManager;
+
 import ru.windcorp.progressia.client.graphics.GUI;
 import ru.windcorp.progressia.common.util.crash.CrashReports;
 import ru.windcorp.progressia.common.util.crash.analyzers.OutOfMemoryAnalyzer;
@@ -33,6 +35,8 @@ public class ProgressiaLauncher {
 		arguments = args.clone();
 		setupCrashReports();
 		
+		LogManager.getRootLogger().info("Launching " + Progressia.getName() + " version " + Progressia.getFullVersion());
+
 		proxy.initialize();
 		ProgressiaLauncher.proxy = proxy;
 		GUI.addTopLayer(new LayerTitle("Title"));
@@ -44,6 +48,7 @@ public class ProgressiaLauncher {
 
 	private static void setupCrashReports() {
 		// Context providers
+		CrashReports.registerProvider(new VersionProvider());
 		CrashReports.registerProvider(new OSContextProvider());
 		CrashReports.registerProvider(new RAMContextProvider());
 		CrashReports.registerProvider(new JavaVersionContextProvider());

src/main/java/ru/windcorp/progressia/client/ClientProxy.java

@@ -25,6 +25,7 @@ import ru.windcorp.progressia.client.graphics.backend.RenderTaskQueue;
 import ru.windcorp.progressia.client.graphics.flat.FlatRenderProgram;
 import ru.windcorp.progressia.client.graphics.font.GNUUnifontLoader;
 import ru.windcorp.progressia.client.graphics.font.Typefaces;
+import ru.windcorp.progressia.client.graphics.gui.ColorScheme;
 import ru.windcorp.progressia.client.graphics.texture.Atlases;
 import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram;
 import ru.windcorp.progressia.client.localization.Localizer;
@@ -51,6 +52,7 @@ public class ClientProxy implements Proxy {
 			throw CrashReports.report(e, "ClientProxy failed");
 		}
 		
+		ColorScheme.load(ResourceManager.getResource("assets/default.colorScheme"));
 		Localizer.getInstance().setLanguage("en-US");
 
 		TestContent.registerContent();

src/main/java/ru/windcorp/progressia/client/comms/controls/ControlTriggers.java

@@ -143,20 +143,6 @@ public class ControlTriggers {
 		);
 	}
 	
-	//
-	//
-	///
-	///
-	//
-	//
-	//
-	//
-	//
-	//
-	//
-	//
-	//
-	
 	public static ControlTriggerInputBased localOf(
 		String id,
 		Consumer<InputEvent> action,

src/main/java/ru/windcorp/progressia/client/comms/controls/InputBasedControls.java

@@ -19,7 +19,7 @@
 package ru.windcorp.progressia.client.comms.controls;
 
 import ru.windcorp.progressia.client.Client;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
 import ru.windcorp.progressia.common.comms.packets.Packet;
 
 public class InputBasedControls {
@@ -36,12 +36,12 @@ public class InputBasedControls {
 			.toArray(ControlTriggerInputBased[]::new);
 	}
 
-	public void handleInput(Input input) {
+	public void handleInput(InputEvent event) {
 		for (ControlTriggerInputBased c : controls) {
-			Packet packet = c.onInputEvent(input.getEvent());
+			Packet packet = c.onInputEvent(event);
 
 			if (packet != null) {
-				input.consume();
+				event.consume();
 				client.getComms().sendPacket(packet);
 				break;
 			}

src/main/java/ru/windcorp/progressia/client/graphics/Colors.java

@@ -34,13 +34,7 @@ public class Colors {
 		DEBUG_BLUE = toVector(0xFF0000FF),
 		DEBUG_CYAN = toVector(0xFF00FFFF),
 		DEBUG_MAGENTA = toVector(0xFFFF00FF),
-		DEBUG_YELLOW = toVector(0xFFFFFF00),
-	
-		LIGHT_GRAY = toVector(0xFFCBCBD0),
-		BLUE = toVector(0xFF37A2E6),
-		HOVER_BLUE = toVector(0xFFC3E4F7),
-		DISABLED_GRAY = toVector(0xFFE5E5E5),
-		DISABLED_BLUE = toVector(0xFFB2D8ED);
+		DEBUG_YELLOW = toVector(0xFFFFFF00);
 
 	public static Vec4 toVector(int argb) {
 		return toVector(argb, new Vec4());

src/main/java/ru/windcorp/progressia/client/graphics/GUI.java

@@ -23,15 +23,8 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 
-import com.google.common.eventbus.Subscribe;
-
 import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
-import ru.windcorp.progressia.client.graphics.input.CursorEvent;
-import ru.windcorp.progressia.client.graphics.input.FrameResizeEvent;
 import ru.windcorp.progressia.client.graphics.input.InputEvent;
-import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.WheelEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
 
 public class GUI {
 
@@ -46,15 +39,6 @@ public class GUI {
 	private static final List<LayerStackModification> MODIFICATION_QUEUE = Collections
 		.synchronizedList(new ArrayList<>());
 
-	private static class ModifiableInput extends Input {
-		@Override
-		public void initialize(InputEvent event, Target target) {
-			super.initialize(event, target);
-		}
-	}
-
-	private static final ModifiableInput THE_INPUT = new ModifiableInput();
-
 	private GUI() {
 	}
 
@@ -126,43 +110,12 @@ public class GUI {
 		LAYERS.forEach(Layer::invalidate);
 	}
 
-	private static void dispatchInputEvent(InputEvent event) {
-		Input.Target target;
-
-		if (event instanceof KeyEvent) {
-			if (((KeyEvent) event).isMouse()) {
-				target = Input.Target.HOVERED;
-			} else {
-				target = Input.Target.FOCUSED;
+	public static void dispatchInput(InputEvent event) {
+		synchronized (LAYERS) {
+			for (int i = 0; i < LAYERS.size(); ++i) {
+				LAYERS.get(i).handleInput(event);
 			}
-		} else if (event instanceof CursorEvent) {
-			target = Input.Target.HOVERED;
-		} else if (event instanceof WheelEvent) {
-			target = Input.Target.HOVERED;
-		} else if (event instanceof FrameResizeEvent) {
-			return;
-		} else {
-			target = Input.Target.ALL;
 		}
-
-		THE_INPUT.initialize(event, target);
-		LAYERS.forEach(l -> l.handleInput(THE_INPUT));
-	}
-
-	public static Object getEventSubscriber() {
-		return new Object() {
-
-			@Subscribe
-			public void onFrameResized(FrameResizeEvent event) {
-				GUI.invalidateEverything();
-			}
-
-			@Subscribe
-			public void onInput(InputEvent event) {
-				dispatchInputEvent(event);
-			}
-
-		};
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/Layer.java

@@ -21,7 +21,7 @@ package ru.windcorp.progressia.client.graphics;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
 
 public abstract class Layer {
 
@@ -106,7 +106,7 @@ public abstract class Layer {
 
 	protected abstract void doRender();
 
-	protected abstract void handleInput(Input input);
+	public abstract void handleInput(InputEvent input);
 
 	protected int getWidth() {
 		return GraphicsInterface.getFrameWidth();

src/main/java/ru/windcorp/progressia/client/graphics/backend/GLFWErrorHandler.java

@@ -0,0 +1,56 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2022  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.backend;
+
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.glfw.GLFWErrorCallback;
+
+import ru.windcorp.jputil.ConstantsMapException;
+import ru.windcorp.jputil.IntConstantsMap;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
+
+public class GLFWErrorHandler {
+
+	private static final IntConstantsMap ERROR_CODES;
+
+	static {
+		try {
+			ERROR_CODES = IntConstantsMap.from(GLFW.class)
+				.stripPrefix("GLFW_")
+				.onlyValued(i -> i >= 0x10000 && i <= 0x1FFFF)
+				.extra("GLFW_NO_ERROR")
+				.scan();
+		} catch (ConstantsMapException e) {
+			throw CrashReports.report(e, "Could not analyze GLFW error codes");
+		}
+	}
+
+	public void onError(int errorCode, long descriptionPointer) {
+		String description = GLFWErrorCallback.getDescription(descriptionPointer);
+
+		String errorCodeName;
+		if (ERROR_CODES.hasConstant(errorCode)) {
+			errorCodeName = ERROR_CODES.getName(errorCode);
+		} else {
+			errorCodeName = "<unknown " + Integer.toHexString(errorCode) + ">";
+		}
+
+		throw CrashReports.report(null, "GLFW error detected: " + errorCodeName + " %s", description);
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/backend/GraphicsInterface.java

@@ -69,6 +69,10 @@ public class GraphicsInterface {
 		InputHandler.register(listener);
 	}
 	
+	public static void unsubscribeFromInputEvents(Object listener) {
+		InputHandler.unregister(listener);
+	}
+
 	public static void startNextLayer() {
 		GraphicsBackend.startNextLayer();
 	}

src/main/java/ru/windcorp/progressia/client/graphics/backend/InputHandler.java

@@ -39,6 +39,7 @@ public class InputHandler {
 
 		public void initialize(int key, int scancode, int action, int mods) {
 			this.setTime(GraphicsInterface.getTime());
+			this.setConsumed(false);
 			this.key = key;
 			this.scancode = scancode;
 			this.action = action;
@@ -59,7 +60,7 @@ public class InputHandler {
 		if (GraphicsBackend.getWindowHandle() != window)
 			return;
 		THE_KEY_EVENT.initialize(key, scancode, action, mods);
-		dispatch(THE_KEY_EVENT);
+		INPUT_EVENT_BUS.post(THE_KEY_EVENT);
 
 		switch (action) {
 		case GLFW.GLFW_PRESS:
@@ -90,6 +91,7 @@ public class InputHandler {
 
 		public void initialize(double x, double y) {
 			this.setTime(GraphicsInterface.getTime());
+			this.setConsumed(false);
 			getNewPosition().set(x, y);
 		}
 
@@ -109,7 +111,7 @@ public class InputHandler {
 		InputTracker.initializeCursorPosition(x, y);
 
 		THE_CURSOR_MOVE_EVENT.initialize(x, y);
-		dispatch(THE_CURSOR_MOVE_EVENT);
+		INPUT_EVENT_BUS.post(THE_CURSOR_MOVE_EVENT);
 
 		InputTracker.getCursorPosition().set(x, y);
 	}
@@ -124,6 +126,7 @@ public class InputHandler {
 
 		public void initialize(double xOffset, double yOffset) {
 			this.setTime(GraphicsInterface.getTime());
+			this.setConsumed(false);
 			this.getOffset().set(xOffset, yOffset);
 		}
 
@@ -139,7 +142,7 @@ public class InputHandler {
 		if (GraphicsBackend.getWindowHandle() != window)
 			return;
 		THE_WHEEL_SCROLL_EVENT.initialize(xoffset, yoffset);
-		dispatch(THE_WHEEL_SCROLL_EVENT);
+		INPUT_EVENT_BUS.post(THE_WHEEL_SCROLL_EVENT);
 	}
 
 	// FrameResizeEvent
@@ -152,6 +155,7 @@ public class InputHandler {
 
 		public void initialize(int width, int height) {
 			this.setTime(GraphicsInterface.getTime());
+			this.setConsumed(false);
 			this.getNewSize().set(width, height);
 		}
 
@@ -167,17 +171,17 @@ public class InputHandler {
 		int height
 	) {
 		THE_FRAME_RESIZE_EVENT.initialize(width, height);
-		dispatch(THE_FRAME_RESIZE_EVENT);
+		INPUT_EVENT_BUS.post(THE_FRAME_RESIZE_EVENT);
 	}
 
 	// Misc
 
-	private static void dispatch(InputEvent event) {
-		INPUT_EVENT_BUS.post(event);
-	}
-
 	public static void register(Object listener) {
 		INPUT_EVENT_BUS.register(listener);
 	}
 	
+	public static void unregister(Object listener) {
+		INPUT_EVENT_BUS.unregister(listener);
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/backend/LWJGLInitializer.java

@@ -22,9 +22,24 @@ import static org.lwjgl.opengl.GL11.*;
 import static org.lwjgl.glfw.GLFW.*;
 import static org.lwjgl.system.MemoryUtil.*;
 
+import java.io.IOException;
+
+import org.lwjgl.glfw.GLFWErrorCallback;
+import org.lwjgl.glfw.GLFWImage;
 import org.lwjgl.opengl.GL;
 
+import com.google.common.eventbus.Subscribe;
+
+import ru.windcorp.progressia.Progressia;
 import ru.windcorp.progressia.client.graphics.GUI;
+import ru.windcorp.progressia.client.graphics.input.FrameResizeEvent;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
+import ru.windcorp.progressia.client.graphics.texture.TextureDataEditor;
+import ru.windcorp.progressia.client.graphics.texture.TextureLoader;
+import ru.windcorp.progressia.client.graphics.texture.TextureSettings;
+import ru.windcorp.progressia.common.resource.Resource;
+import ru.windcorp.progressia.common.resource.ResourceManager;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 class LWJGLInitializer {
 
@@ -41,6 +56,7 @@ class LWJGLInitializer {
 		setupWindowCallbacks();
 
 		glfwShowWindow(GraphicsBackend.getWindowHandle());
+		GraphicsBackend.onFrameResized(GraphicsBackend.getWindowHandle(), 800, 600);
 	}
 
 	private static void checkEnvironment() {
@@ -48,8 +64,12 @@ class LWJGLInitializer {
 	}
 
 	private static void initializeGLFW() {
-		// TODO Do GLFW error handling: check glfwInit, setup error callback
-		glfwInit();
+		GLFWErrorCallback.create(new GLFWErrorHandler()::onError).set();
+
+		if (!glfwInit()) {
+			throw CrashReports.report(null, "GLFW could not be initialized: glfwInit() has failed");
+		}
+
 		GraphicsBackend.setGLFWInitialized(true);
 	}
 
@@ -57,11 +77,13 @@ class LWJGLInitializer {
 		glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
 		glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
 		glfwWindowHint(GLFW_FOCUSED, GLFW_TRUE);
-		glfwWindowHint(GLFW_MAXIMIZED, GLFW_TRUE);
 
-		long handle = glfwCreateWindow(900, 900, "ProgressiaTest", NULL, NULL);
+		String windowTitle = Progressia.getName() + " " + Progressia.getFullerVersion();
+		long handle = glfwCreateWindow(800, 600, windowTitle, NULL, NULL);
 		
-		// TODO Check that handle != NULL
+		if (handle == 0) {
+			throw CrashReports.report(null, "Could not create game window");
+		}
 
 		GraphicsBackend.setWindowHandle(handle);
 
@@ -75,8 +97,30 @@ class LWJGLInitializer {
 	}
 
 	private static void createWindowIcons() {
-		// TODO Auto-generated method stub
+		if (glfwGetPlatform() == GLFW_PLATFORM_WAYLAND) {
+			// Wayland does not support changing window icons
+			return;
+		}
 		
+		final String prefix = "assets/icons/";
+
+		String[] sizes = ResourceManager.getResource(prefix + "logoSizes.txt").readAsString().split(" ");
+
+		try (GLFWImage.Buffer buffer = GLFWImage.malloc(sizes.length)) {
+			for (int i = 0; i < sizes.length; ++i) {
+				Resource resource = ResourceManager.getResource(prefix + "logo" + sizes[i].trim() + ".png");
+				TextureDataEditor icon = TextureLoader.loadPixels(resource, new TextureSettings(false, true));
+
+				buffer.position(i)
+					.width(icon.getContentWidth())
+					.height(icon.getContentHeight())
+					.pixels(icon.getData().getData());
+			}
+
+			glfwSetWindowIcon(GraphicsBackend.getWindowHandle(), buffer);
+		} catch (IOException e) {
+			throw CrashReports.report(e, "Could not load window icons");
+		}
 	}
 
 	private static void initializeOpenGL() {
@@ -107,7 +151,20 @@ class LWJGLInitializer {
 
 		glfwSetScrollCallback(handle, InputHandler::handleWheelScroll);
 
-		GraphicsInterface.subscribeToInputEvents(GUI.getEventSubscriber());
+		GraphicsInterface.subscribeToInputEvents(new Object() {
+
+			@Subscribe
+			public void onFrameResized(FrameResizeEvent event) {
+				GUI.invalidateEverything();
+			}
+
+			@Subscribe
+			public void onInputEvent(InputEvent event) {
+				GUI.dispatchInput(event);
+			}
+
+		});
+
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/font/GNUUnifontLoader.java

@@ -45,7 +45,7 @@ public class GNUUnifontLoader {
 
 	private static final AtlasGroup ATLAS_GROUP_GNU_UNIFONT = new AtlasGroup("GNUUnifont", 1 << 12);
 
-	private static final TextureSettings TEXTURE_SETTINGS = new TextureSettings(false);
+	private static final TextureSettings TEXTURE_SETTINGS = new TextureSettings(false, false);
 
 	private static final int BITS_PER_HEX_DIGIT = 4;
 	private static final int PREFIX_LENGTH = "0000:".length();

src/main/java/ru/windcorp/progressia/client/graphics/gui/BasicButton.java

@@ -54,18 +54,17 @@ public abstract class BasicButton extends Component {
 		reassembleAt(ARTrigger.HOVER, ARTrigger.FOCUS, ARTrigger.ENABLE);
 
 		// Click triggers
-		addListener(KeyEvent.class, e -> {
-			if (e.isRepeat()) {
-				return false;
-			} else if (
+		addInputListener(KeyEvent.class, e -> {
+			if (e.isRepeat())
+				return;
+			
+			if (
 				e.isLeftMouseButton() ||
 					e.getKey() == GLFW.GLFW_KEY_SPACE ||
 					e.getKey() == GLFW.GLFW_KEY_ENTER
 			) {
 				setPressed(e.isPress());
-				return true;
-			} else {
-				return false;
+				e.consume();
 			}
 		});
 

src/main/java/ru/windcorp/progressia/client/graphics/gui/Button.java

@@ -18,10 +18,8 @@
 
 package ru.windcorp.progressia.client.graphics.gui;
 
-import glm.vec._4.Vec4;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
 import ru.windcorp.progressia.client.graphics.font.Font;
-import ru.windcorp.progressia.client.graphics.Colors;
 
 public class Button extends BasicButton {
 
@@ -39,45 +37,26 @@ public class Button extends BasicButton {
 
 	@Override
 	protected void assembleSelf(RenderTarget target) {
-		// Border
-
-		Vec4 borderColor;
-		if (isPressed() || isHovered() || isFocused()) {
-			borderColor = Colors.BLUE;
+		String state;
+		if (!isEnabled()) {
+			state = "Disabled";
+		} else if (isPressed()) {
+			state = "Pressed";
+		} else if (isHovered()) {
+			state = "Hovered";
+		} else if (isFocused()) {
+			state = "Focused";
 		} else {
-			borderColor = Colors.LIGHT_GRAY;
+			state = "Inactive";
 		}
-		target.fill(getX(), getY(), getWidth(), getHeight(), borderColor);
+		
+		// Border
+		target.fill(getX(), getY(), getWidth(), getHeight(), ColorScheme.get("Core:ButtonBorder" + state));
 
 		// Inside area
-
-		if (isPressed()) {
-			// Do nothing
-		} else {
-			Vec4 backgroundColor;
-			if (isHovered() && isEnabled()) {
-				backgroundColor = Colors.HOVER_BLUE;
-			} else {
-				backgroundColor = Colors.WHITE;
-			}
-			target.fill(getX() + 2, getY() + 2, getWidth() - 4, getHeight() - 4, backgroundColor);
-		}
+		target.fill(getX() + 2, getY() + 2, getWidth() - 4, getHeight() - 4, ColorScheme.get("Core:ButtonFill" + state));
 
 		// Change label font color
-
-		if (isPressed()) {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.WHITE));
-		} else {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.BLACK));
-		}
-	}
-
-	@Override
-	protected void postAssembleSelf(RenderTarget target) {
-		// Apply disable tint
-
-		if (!isEnabled()) {
-			target.fill(getX(), getY(), getWidth(), getHeight(), Colors.toVector(0x88FFFFFF));
-		}
+		getLabel().setFont(getLabel().getFont().withColor(ColorScheme.get("Core:ButtonText" + state)));
 	}
 }

src/main/java/ru/windcorp/progressia/client/graphics/gui/Checkbox.java

@@ -18,8 +18,6 @@
 package ru.windcorp.progressia.client.graphics.gui;
 
 import glm.vec._2.i.Vec2i;
-import glm.vec._4.Vec4;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
 import ru.windcorp.progressia.client.graphics.font.Font;
 import ru.windcorp.progressia.client.graphics.font.Typefaces;
@@ -43,34 +41,28 @@ public class Checkbox extends BasicButton {
 			int x = getX();
 			int y = getY() + (getHeight() - size) / 2;
 			
-			// Border
-
-			Vec4 borderColor;
-			if (Checkbox.this.isPressed() || Checkbox.this.isHovered() || Checkbox.this.isFocused()) {
-				borderColor = Colors.BLUE;
+			String state;
+			if (!Checkbox.this.isEnabled()) {
+				state = "Disabled";
+			} else if (Checkbox.this.isPressed()) {
+				state = "Pressed";
+			} else if (Checkbox.this.isHovered()) {
+				state = "Hovered";
+			} else if (Checkbox.this.isFocused()) {
+				state = "Focused";
 			} else {
-				borderColor = Colors.LIGHT_GRAY;
+				state = "Inactive";
 			}
-			target.fill(x, y, size, size, borderColor);
+			
+			// Border
+			target.fill(x, y, size, size, ColorScheme.get("Core:CheckboxBorder" + state));
 
 			// Inside area
-
-			if (Checkbox.this.isPressed()) {
-				// Do nothing
-			} else {
-				Vec4 backgroundColor;
-				if (Checkbox.this.isHovered() && Checkbox.this.isEnabled()) {
-					backgroundColor = Colors.HOVER_BLUE;
-				} else {
-					backgroundColor = Colors.WHITE;
-				}
-				target.fill(x + 2, y + 2, size - 4, size - 4, backgroundColor);
-			}
+			target.fill(x + 2, y + 2, size - 4, size - 4, ColorScheme.get("Core:CheckboxFill" + state));
 
 			// "Tick"
-
 			if (Checkbox.this.isChecked()) {
-				target.fill(x + 4, y + 4, size - 8, size - 8, Colors.BLUE);
+				target.fill(x + 4, y + 4, size - 8, size - 8, ColorScheme.get("Core:CheckboxCheck" + state));
 			}
 		}
 
@@ -128,22 +120,21 @@ public class Checkbox extends BasicButton {
 
 	@Override
 	protected void assembleSelf(RenderTarget target) {
-		// Change label font color
-
-		if (isPressed()) {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.BLUE));
+		String state;
+		if (!Checkbox.this.isEnabled()) {
+			state = "Disabled";
+		} else if (Checkbox.this.isPressed()) {
+			state = "Pressed";
+		} else if (Checkbox.this.isHovered()) {
+			state = "Hovered";
+		} else if (Checkbox.this.isFocused()) {
+			state = "Focused";
 		} else {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.BLACK));
-		}
+			state = "Inactive";
 		}
 
-	@Override
-	protected void postAssembleSelf(RenderTarget target) {
-		// Apply disable tint
-
-		if (!isEnabled()) {
-			target.fill(getX(), getY(), getWidth(), getHeight(), Colors.toVector(0x88FFFFFF));
-		}
+		// Change label font color
+		getLabel().setFont(getLabel().getFont().withColor(ColorScheme.get("Core:CheckboxText" + state)));
 	}
 	
 }

src/main/java/ru/windcorp/progressia/client/graphics/gui/ColorScheme.java

@@ -0,0 +1,145 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2022  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.gui;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.google.common.collect.ImmutableMap;
+
+import glm.vec._4.Vec4;
+import ru.windcorp.jputil.SyntaxException;
+import ru.windcorp.jputil.chars.StringUtil;
+import ru.windcorp.progressia.common.resource.Resource;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
+import ru.windcorp.progressia.common.util.namespaces.IllegalIdException;
+import ru.windcorp.progressia.common.util.namespaces.NamespacedUtil;
+
+public class ColorScheme {
+	
+	private static Map<String, Vec4> defaultScheme;
+	
+	public static Vec4 get(String key) {
+		Vec4 color = defaultScheme.get(key);
+		if (color == null) {
+			throw CrashReports.report(null, "ColorScheme does not contain color %s", key);
+		}
+		return color;
+	}
+	
+	public static void load(Resource resource) {
+		Map<String, Vec4> tmpMap = new HashMap<>();
+		
+		try {
+			for (String fullLine : StringUtil.split(resource.readAsString(), '\n')) {
+				String line = fullLine.trim();
+				if (line.isEmpty() || line.startsWith("#")) {
+					continue;
+				}
+				
+				String[] parts = StringUtil.split(line, '=', 2);
+				if (parts[1] == null) {
+					throw new SyntaxException("Could not parse \"" + line + "\": '=' not found");
+				}
+				
+				String key = parts[0].trim();
+				checkKeyName(key);
+				if (tmpMap.containsKey(key)) {
+					throw new SyntaxException("Duplicate key " + key);
+				}
+				
+				String value = parts[1].trim();
+				Vec4 color;
+				
+				if (value.startsWith("#")) {
+					color = parseValueAsHex(value);
+				} else if (value.startsWith("$")) {
+					color = parseValueAsReference(value, tmpMap);
+				} else {
+					throw new SyntaxException("Unknown value format \"" + value + "\"");
+				}
+				
+				tmpMap.put(key, color);
+			}
+		} catch (SyntaxException e) {
+			throw CrashReports.report(e, "Could not load ColorScheme from %s", resource);
+		}
+		
+		defaultScheme = ImmutableMap.copyOf(tmpMap);
+	}
+	
+	private static void checkKeyName(String key) throws SyntaxException {
+		try {
+			NamespacedUtil.checkId(key);
+		} catch (IllegalIdException e) {
+			throw new SyntaxException("Illegal key name \"" + key + "\"", e);
+		}
+	}
+	
+	private static int parseHex(String from, int start, int length) {
+		return Integer.parseInt(from.substring(start, start + length), 0x10);
+	}
+
+	private static Vec4 parseValueAsHex(String value) throws SyntaxException {
+		int a = 0xFF;
+		int r, g, b;
+		
+		switch (value.length() - 1) {
+		case 3:
+			// #RGB
+			r = parseHex(value, 1, 1) * 0x11;
+			g = parseHex(value, 2, 1) * 0x11;
+			b = parseHex(value, 3, 1) * 0x11;
+			break;
+		case 4:
+			// #ARGB
+			a = parseHex(value, 1, 1) * 0x11;
+			r = parseHex(value, 2, 1) * 0x11;
+			g = parseHex(value, 3, 1) * 0x11;
+			b = parseHex(value, 4, 1) * 0x11;
+			break;
+		case 6:
+			// #RRGGBB
+			r = parseHex(value, 1, 2);
+			g = parseHex(value, 3, 2);
+			b = parseHex(value, 5, 2);
+			break;
+		case 8:
+			// #AARRGGBB
+			a = parseHex(value, 1, 2);
+			r = parseHex(value, 3, 2);
+			g = parseHex(value, 5, 2);
+			b = parseHex(value, 7, 2);
+			break;
+		default:
+			throw new SyntaxException("Could not parse hex color \"" + value + "\": expecting #RGB, #ARGB, #RRGGBB or #AARRGGBB");
+		}
+		
+		return new Vec4(r / 255.0, g / 255.0, b / 255.0, a / 255.0);
+	}
+	
+	private static Vec4 parseValueAsReference(String value, Map<String, Vec4> map) throws SyntaxException {
+		String otherKey = value.substring(1);
+		checkKeyName(otherKey);
+		if (!map.containsKey(otherKey)) {
+			throw new SyntaxException("Key $" + otherKey + " not found");
+		}
+		return map.get(otherKey);
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/gui/Component.java

@@ -25,8 +25,6 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.CopyOnWriteArrayList;
 
-import org.lwjgl.glfw.GLFW;
-
 import com.google.common.eventbus.EventBus;
 import com.google.common.eventbus.Subscribe;
 
@@ -39,9 +37,10 @@ import ru.windcorp.progressia.client.graphics.gui.event.EnableEvent;
 import ru.windcorp.progressia.client.graphics.gui.event.FocusEvent;
 import ru.windcorp.progressia.client.graphics.gui.event.HoverEvent;
 import ru.windcorp.progressia.client.graphics.gui.event.ParentChangedEvent;
+import ru.windcorp.progressia.client.graphics.input.CursorMoveEvent;
 import ru.windcorp.progressia.client.graphics.input.InputEvent;
 import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
 import ru.windcorp.progressia.client.graphics.input.bus.InputBus;
 import ru.windcorp.progressia.client.graphics.input.bus.InputListener;
 import ru.windcorp.progressia.common.util.Named;
@@ -55,7 +54,7 @@ public class Component extends Named {
 	private Component parent = null;
 
 	private EventBus eventBus = null;
-	private InputBus inputBus = null;
+	private final InputBus inputBus = new InputBus(this);
 
 	private int x, y;
 	private int width, height;
@@ -76,6 +75,9 @@ public class Component extends Named {
 
 	public Component(String name) {
 		super(name);
+		
+		// Update hover flag when cursor moves
+		addInputListener(CursorMoveEvent.class, this::updateHoverFlag, InputBus.Option.ALWAYS);
 	}
 
 	public Component getParent() {
@@ -522,6 +524,10 @@ public class Component extends Named {
 		}
 	}
 	
+	private void updateHoverFlag(CursorMoveEvent e) {
+		setHovered(contains((int) InputTracker.getCursorX(), (int) InputTracker.getCursorY()));
+	}
+
 	public void addListener(Object listener) {
 		if (eventBus == null) {
 			eventBus = ReportingEventBus.create(getName());
@@ -542,121 +548,32 @@ public class Component extends Named {
 		eventBus.post(event);
 	}
 
-	public <T extends InputEvent> void addListener(
-		Class<? extends T> type,
-		boolean handlesConsumed,
-		InputListener<T> listener
-	) {
-		if (inputBus == null) {
-			inputBus = new InputBus();
+	public <T extends InputEvent> void addInputListener(Class<? extends T> type, InputListener<T> listener, InputBus.Option... options) {
+		inputBus.register(type, listener, options);
 	}
 	
-		inputBus.register(type, handlesConsumed, listener);
+	public void addKeyListener(KeyMatcher matcher, InputListener<? super KeyEvent> listener, InputBus.Option... options) {
+		inputBus.register(matcher, listener, options);
 	}
 
-	public <T extends InputEvent> void addListener(Class<? extends T> type, InputListener<T> listener) {
-		if (inputBus == null) {
-			inputBus = new InputBus();
-		}
-
-		inputBus.register(type, listener);
-	}
-
-	public void removeListener(InputListener<?> listener) {
+	public void removeInputListener(InputListener<?> listener) {
 		if (inputBus != null) {
 			inputBus.unregister(listener);
 		}
 	}
 	
-	protected void handleInput(Input input) {
-		if (inputBus != null && isEnabled()) {
-			inputBus.dispatch(input);
-		}
-	}
-
-	public void dispatchInput(Input input) {
-		try {
-			switch (input.getTarget()) {
-			case FOCUSED:
-				dispatchInputToFocused(input);
-				break;
-			case HOVERED:
-				dispatchInputToHovered(input);
-				break;
-			case ALL:
-			default:
-				dispatchInputToAll(input);
-				break;
-			}
-		} catch (Exception e) {
-			throw CrashReports.report(e, "Could not dispatch input to Component %s", this);
-		}
-	}
-
-	private void dispatchInputToFocused(Input input) {
-		Component c = findFocused();
-
-		if (c == null)
-			return;
-		if (attemptFocusTransfer(input, c))
-			return;
-
-		while (c != null) {
-			c.handleInput(input);
-			c = c.getParent();
-		}
-	}
-
-	private void dispatchInputToHovered(Input input) {
-		getChildren().forEach(child -> {
-			if (child.containsCursor()) {
-				child.setHovered(true);
-
-				if (!input.isConsumed()) {
-					child.dispatchInput(input);
-				}
-			} else {
-				child.setHovered(false);
-			}
-		});
-
-		handleInput(input);
-	}
-
-	private void dispatchInputToAll(Input input) {
-		getChildren().forEach(c -> c.dispatchInput(input));
-		handleInput(input);
-	}
-
-	private boolean attemptFocusTransfer(Input input, Component focused) {
-		if (input.isConsumed())
-			return false;
-		if (!(input.getEvent() instanceof KeyEvent))
-			return false;
-
-		KeyEvent keyInput = (KeyEvent) input.getEvent();
-
-		if (keyInput.getKey() == GLFW.GLFW_KEY_TAB && !keyInput.isRelease()) {
-			input.consume();
-			if (keyInput.hasShift()) {
-				focused.focusPrevious();
-			} else {
-				focused.focusNext();
-			}
+	protected boolean passInputToChildren(InputEvent e) {
 		return true;
 	}
 	
-		return false;
+	InputBus getInputBus() {
+		return inputBus;
 	}
 	
 	public synchronized boolean contains(int x, int y) {
 		return x >= getX() && x < getX() + getWidth() && y >= getY() && y < getY() + getHeight();
 	}
 
-	public boolean containsCursor() {
-		return contains((int) InputTracker.getCursorX(), (int) InputTracker.getCursorY());
-	}
-
 	public void requestReassembly() {
 		if (parent != null) {
 			parent.requestReassembly();

src/main/java/ru/windcorp/progressia/client/graphics/gui/DragManager.java

@@ -0,0 +1,77 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.gui;
+
+import java.util.Objects;
+
+import glm.vec._2.d.Vec2d;
+import ru.windcorp.progressia.client.graphics.gui.event.DragEvent;
+import ru.windcorp.progressia.client.graphics.gui.event.DragStartEvent;
+import ru.windcorp.progressia.client.graphics.gui.event.DragStopEvent;
+import ru.windcorp.progressia.client.graphics.input.CursorMoveEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.input.bus.InputBus;
+
+public class DragManager {
+	
+	private Component component;
+	
+	private boolean isDragged = false;
+	private final Vec2d change = new Vec2d();
+	
+	public void install(Component c) {
+		Objects.requireNonNull(c, "c");
+		if (c == component) {
+			return;
+		}
+		if (component != null) {
+			throw new IllegalStateException("Already installed on " + component + "; attempted to install on " + c);
+		}
+		
+		component = c;
+		
+		c.addInputListener(CursorMoveEvent.class, this::onCursorMove, InputBus.Option.ALWAYS);
+		c.addKeyListener(KeyMatcher.LMB, this::onLMB, InputBus.Option.ALWAYS, InputBus.Option.IGNORE_ACTION);
+	}
+	
+	private void onCursorMove(CursorMoveEvent e) {
+		if (isDragged) {
+			Vec2d currentChange = e.getChange(null);
+			change.add(currentChange);
+			component.dispatchEvent(new DragEvent(component, currentChange, change));
+		}
+	}
+	
+	private void onLMB(KeyEvent e) {
+		if (isDragged && e.isRelease()) {
+			
+			isDragged = false;
+			component.dispatchEvent(new DragStopEvent(component, change));
+			
+		} else if (!isDragged && !e.isConsumed() && e.isPress() && component.isHovered()) {
+			
+			isDragged = true;
+			change.set(0, 0);
+			component.dispatchEvent(new DragStartEvent(component));
+			e.consume();
+			
+		}
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/gui/GUILayer.java

@@ -18,9 +18,17 @@
 
 package ru.windcorp.progressia.client.graphics.gui;
 
+import java.util.Iterator;
+
+import org.lwjgl.glfw.GLFW;
+
 import ru.windcorp.progressia.client.graphics.flat.AssembledFlatLayer;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.bus.InputBus;
+import ru.windcorp.progressia.common.util.LowOverheadCache;
+import ru.windcorp.progressia.common.util.StashingStack;
 
 public abstract class GUILayer extends AssembledFlatLayer {
 
@@ -33,7 +41,9 @@ public abstract class GUILayer extends AssembledFlatLayer {
 
 	public GUILayer(String name, Layout layout) {
 		super(name);
+
 		getRoot().setLayout(layout);
+		getRoot().addInputListener(KeyEvent.class, this::attemptFocusTransfer, InputBus.Option.IGNORE_FOCUS);
 	}
 
 	public Component getRoot() {
@@ -47,9 +57,85 @@ public abstract class GUILayer extends AssembledFlatLayer {
 		getRoot().assemble(target);
 	}
 
+	/**
+	 * Stack frame for {@link #handleInput(InputEvent)}.
+	 */
+	private static class EventHandlingFrame {
+		Component component;
+		Iterator<Component> children;
+
+		void init(Component c) {
+			component = c;
+			children = c.getChildren().iterator();
+		}
+
+		void reset() {
+			component = null;
+			children = null;
+		}
+	}
+
+	/**
+	 * Stacks for {@link #handleInput(InputEvent)}.
+	 */
+	private final LowOverheadCache<StashingStack<EventHandlingFrame>> pathCache = new LowOverheadCache<>(
+		() -> new StashingStack<>(64, EventHandlingFrame::new)
+	);
+
+	/*
+	 * This is essentially a depth-first iteration of the component tree. The
+	 * recursive procedure has been unrolled to reduce call stack length.
+	 */
 	@Override
-	protected void handleInput(Input input) {
-		getRoot().dispatchInput(input);
+	public void handleInput(InputEvent event) {
+		StashingStack<EventHandlingFrame> path = pathCache.grab();
+		
+		if (!path.isEmpty()) {
+			throw new IllegalStateException("path is not empty: " + path);
+		}
+
+		path.push().init(root);
+
+		while (!path.isEmpty()) {
+
+			Iterator<Component> it = path.peek().children;
+			if (it.hasNext()) {
+
+				Component c = it.next();
+
+				if (c.isEnabled()) {
+					if (c.getChildren().isEmpty() || !c.passInputToChildren(event)) {
+						c.getInputBus().dispatch(event);
+					} else {
+						path.push().init(c);
+					}
+				}
+
+			} else {
+				path.peek().component.getInputBus().dispatch(event);
+				path.pop().reset();
+			}
+
+		}
+		
+		pathCache.release(path);
+	}
+
+	private void attemptFocusTransfer(KeyEvent e) {
+		Component focused = getRoot().findFocused();
+
+		if (focused == null) {
+			return;
+		}
+
+		if (e.getKey() == GLFW.GLFW_KEY_TAB && !e.isRelease()) {
+			e.consume();
+			if (e.hasShift()) {
+				focused.focusPrevious();
+			} else {
+				focused.focusNext();
+			}
+		}
 	}
 
 	@Override

src/main/java/ru/windcorp/progressia/client/graphics/gui/Panel.java

@@ -20,7 +20,6 @@ package ru.windcorp.progressia.client.graphics.gui;
 import java.util.Objects;
 
 import glm.vec._4.Vec4;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
 
 public class Panel extends Group {
@@ -36,7 +35,7 @@ public class Panel extends Group {
 	}
 	
 	public Panel(String name, Layout layout) {
-		this(name, layout, Colors.WHITE, Colors.LIGHT_GRAY);
+		this(name, layout, ColorScheme.get("Core:Background"), ColorScheme.get("Core:Border"));
 	}
 	
 	/**

src/main/java/ru/windcorp/progressia/client/graphics/gui/RadioButton.java

@@ -21,7 +21,6 @@ import org.lwjgl.glfw.GLFW;
 
 import glm.vec._2.i.Vec2i;
 import glm.vec._4.Vec4;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
 import ru.windcorp.progressia.client.graphics.font.Font;
 import ru.windcorp.progressia.client.graphics.font.Typefaces;
@@ -52,34 +51,28 @@ public class RadioButton extends BasicButton {
 			int x = getX();
 			int y = getY() + (getHeight() - size) / 2;
 			
-			// Border
-
-			Vec4 borderColor;
-			if (RadioButton.this.isPressed() || RadioButton.this.isHovered() || RadioButton.this.isFocused()) {
-				borderColor = Colors.BLUE;
+			String state;
+			if (!RadioButton.this.isEnabled()) {
+				state = "Disabled";
+			} else if (RadioButton.this.isPressed()) {
+				state = "Pressed";
+			} else if (RadioButton.this.isHovered()) {
+				state = "Hovered";
+			} else if (RadioButton.this.isFocused()) {
+				state = "Focused";
 			} else {
-				borderColor = Colors.LIGHT_GRAY;
+				state = "Inactive";
 			}
-			cross(target, x, y, size, borderColor);
+
+			// Border
+			cross(target, x, y, size, ColorScheme.get("Core:RadioButtonBorder" + state));
 
 			// Inside area
-
-			if (RadioButton.this.isPressed()) {
-				// Do nothing
-			} else {
-				Vec4 backgroundColor;
-				if (RadioButton.this.isHovered() && RadioButton.this.isEnabled()) {
-					backgroundColor = Colors.HOVER_BLUE;
-				} else {
-					backgroundColor = Colors.WHITE;
-				}
-				cross(target, x + 2, y + 2, size - 4, backgroundColor);
-			}
+			cross(target, x + 2, y + 2, size - 4, ColorScheme.get("Core:RadioButtonFill" + state));
 
 			// "Tick"
-
 			if (RadioButton.this.isChecked()) {
-				cross(target, x + 4, y + 4, size - 8, Colors.BLUE);
+				cross(target, x + 4, y + 4, size - 8, ColorScheme.get("Core:RadioButtonCheck" + state));
 			}
 		}
 
@@ -104,26 +97,22 @@ public class RadioButton extends BasicButton {
 		group.addChild(basicChild);
 		addChild(group);
 
-		addListener(KeyEvent.class, e -> {
-			if (e.isRelease())
-				return false;
+		addInputListener(KeyEvent.class, e -> {
+			if (e.isRelease()) return;
 
 			if (e.getKey() == GLFW.GLFW_KEY_LEFT || e.getKey() == GLFW.GLFW_KEY_UP) {
 				if (this.group != null) {
 					this.group.selectPrevious();
 					this.group.getSelected().takeFocus();
 				}
-
-				return true;
+				e.consume();
 			} else if (e.getKey() == GLFW.GLFW_KEY_RIGHT || e.getKey() == GLFW.GLFW_KEY_DOWN) {
 				if (this.group != null) {
 					this.group.selectNext();
 					this.group.getSelected().takeFocus();
 				}
-				return true;
+				e.consume();
 			}
-
-			return false;
 		});
 
 		addAction(b -> setChecked(true));
@@ -150,8 +139,8 @@ public class RadioButton extends BasicButton {
 			group.selectNext();
 			removeAction(group.listener);
 			group.buttons.remove(this);
-			group.getSelected(); // Clear reference if this was the only button
-									// in the group
+			// Clear reference if this was the only button in the group
+			group.getSelected();
 		}
 
 		this.group = group;
@@ -187,22 +176,21 @@ public class RadioButton extends BasicButton {
 
 	@Override
 	protected void assembleSelf(RenderTarget target) {
-		// Change label font color
-
-		if (isPressed()) {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.BLUE));
+		String state;
+		if (!RadioButton.this.isEnabled()) {
+			state = "Disabled";
+		} else if (RadioButton.this.isPressed()) {
+			state = "Pressed";
+		} else if (RadioButton.this.isHovered()) {
+			state = "Hovered";
+		} else if (RadioButton.this.isFocused()) {
+			state = "Focused";
 		} else {
-			getLabel().setFont(getLabel().getFont().withColor(Colors.BLACK));
-		}
+			state = "Inactive";
 		}
 
-	@Override
-	protected void postAssembleSelf(RenderTarget target) {
-		// Apply disable tint
-
-		if (!isEnabled()) {
-			target.fill(getX(), getY(), getWidth(), getHeight(), Colors.toVector(0x88FFFFFF));
-		}
+		// Change label font color
+		getLabel().setFont(getLabel().getFont().withColor(ColorScheme.get("Core:RadioButtonText" + state)));
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/gui/event/DragEvent.java

@@ -0,0 +1,58 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.gui.event;
+
+import glm.vec._2.d.Vec2d;
+import ru.windcorp.progressia.client.graphics.gui.Component;
+
+public class DragEvent extends ComponentEvent {
+	
+	private final Vec2d currentChange = new Vec2d();
+	private final Vec2d totalChange = new Vec2d();
+
+	public DragEvent(Component component, Vec2d currentChange, Vec2d totalChange) {
+		super(component);
+		this.currentChange.set(currentChange.x, currentChange.y);
+		this.totalChange.set(totalChange.x, totalChange.y);
+	}
+	
+	public Vec2d getCurrentChange() {
+		return currentChange;
+	}
+	
+	public double getCurrentChangeX() {
+		return currentChange.x;
+	}
+	
+	public double getCurrentChangeY() {
+		return currentChange.y;
+	}
+	
+	public Vec2d getTotalChange() {
+		return totalChange;
+	}
+	
+	public double getTotalChangeX() {
+		return totalChange.x;
+	}
+	
+	public double getTotalChangeY() {
+		return totalChange.y;
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/gui/event/DragStartEvent.java

@@ -0,0 +1,28 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.gui.event;
+
+import ru.windcorp.progressia.client.graphics.gui.Component;
+
+public class DragStartEvent extends ComponentEvent {
+
+	public DragStartEvent(Component component) {
+		super(component);
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/gui/event/DragStopEvent.java

@@ -15,48 +15,30 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
+package ru.windcorp.progressia.client.graphics.gui.event;
 
-package ru.windcorp.progressia.client.graphics.input.bus;
+import glm.vec._2.d.Vec2d;
+import ru.windcorp.progressia.client.graphics.gui.Component;
 
-import ru.windcorp.progressia.client.graphics.input.InputEvent;
+public class DragStopEvent extends ComponentEvent {
 
-public class Input {
+	private final Vec2d totalChange = new Vec2d();
 
-	public static enum Target {
-		FOCUSED, HOVERED, ALL
+	public DragStopEvent(Component component, Vec2d totalChange) {
+		super(component);
+		this.totalChange.set(totalChange.x, totalChange.y);
 	}
 	
-	private InputEvent event;
-
-	private boolean isConsumed;
-
-	private Target target;
-
-	protected void initialize(InputEvent event, Target target) {
-		this.event = event;
-		this.target = target;
-
-		this.isConsumed = false;
+	public Vec2d getTotalChange() {
+		return totalChange;
 	}
 	
-	public InputEvent getEvent() {
-		return event;
+	public double getTotalChangeX() {
+		return totalChange.x;
 	}
 	
-	public boolean isConsumed() {
-		return isConsumed;
-	}
-
-	public void setConsumed(boolean isConsumed) {
-		this.isConsumed = isConsumed;
-	}
-
-	public void consume() {
-		setConsumed(true);
-	}
-
-	public Target getTarget() {
-		return target;
+	public double getTotalChangeY() {
+		return totalChange.y;
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/gui/menu/MenuLayer.java

@@ -20,9 +20,9 @@ package ru.windcorp.progressia.client.graphics.gui.menu;
 import org.lwjgl.glfw.GLFW;
 
 import glm.vec._2.i.Vec2i;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.GUI;
 import ru.windcorp.progressia.client.graphics.font.Font;
+import ru.windcorp.progressia.client.graphics.gui.ColorScheme;
 import ru.windcorp.progressia.client.graphics.gui.Component;
 import ru.windcorp.progressia.client.graphics.gui.GUILayer;
 import ru.windcorp.progressia.client.graphics.gui.Label;
@@ -33,7 +33,6 @@ import ru.windcorp.progressia.client.graphics.gui.layout.LayoutFill;
 import ru.windcorp.progressia.client.graphics.gui.layout.LayoutVertical;
 import ru.windcorp.progressia.client.graphics.input.InputEvent;
 import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
 import ru.windcorp.progressia.client.localization.MutableString;
 import ru.windcorp.progressia.client.localization.MutableStringLocalized;
 
@@ -51,7 +50,7 @@ public class MenuLayer extends GUILayer {
 		
 		setCursorPolicy(CursorPolicy.REQUIRE);
 		
-		this.background = new Panel(name + ".Background", new LayoutAlign(10), Colors.toVector(0x66000000), null);
+		this.background = new Panel(name + ".Background", new LayoutAlign(10), ColorScheme.get("Core:MenuLayerTint"), null);
 		this.content = content;
 		
 		background.addChild(content);
@@ -77,12 +76,12 @@ public class MenuLayer extends GUILayer {
 	protected void addTitle() {
 		String translationKey = "Layer" + getName() + ".Title";
 		MutableString titleText = new MutableStringLocalized(translationKey);
-		Font titleFont = new Font().deriveBold().withColor(Colors.BLACK).withAlign(0.5f);
+		Font titleFont = new Font().deriveBold().withColor(ColorScheme.get("Core:Text")).withAlign(0.5f);
 		
 		Label label = new Label(getName() + ".Title", titleFont, titleText);
 		getContent().addChild(label);
 		
-		Panel panel = new Panel(getName() + ".Title.Underscore", null, Colors.BLUE, null);
+		Panel panel = new Panel(getName() + ".Title.Underscore", null, ColorScheme.get("Core:Accent"), null);
 		panel.setLayout(new LayoutFill() {
 			@Override
 			public Vec2i calculatePreferredSize(Component c) {
@@ -97,11 +96,9 @@ public class MenuLayer extends GUILayer {
 	}
 	
 	@Override
-	protected void handleInput(Input input) {
-		
-		if (!input.isConsumed()) {
-			InputEvent event = input.getEvent();
+	public void handleInput(InputEvent event) {
 		
+		if (!event.isConsumed()) {
 			if (event instanceof KeyEvent) {
 				KeyEvent keyEvent = (KeyEvent) event;
 				if (keyEvent.isPress() && keyEvent.getKey() == GLFW.GLFW_KEY_ESCAPE) {
@@ -110,8 +107,8 @@ public class MenuLayer extends GUILayer {
 			}
 		}
 		
-		super.handleInput(input);
-		input.consume();
+		super.handleInput(event);
+		event.consume();
 	}
 	
 }

src/main/java/ru/windcorp/progressia/client/graphics/input/CursorMoveEvent.java

@@ -18,7 +18,6 @@
  
 package ru.windcorp.progressia.client.graphics.input;
 
-import glm.vec._2.Vec2;
 import glm.vec._2.d.Vec2d;
 
 public class CursorMoveEvent extends CursorEvent {
@@ -81,7 +80,10 @@ public class CursorMoveEvent extends CursorEvent {
 		return getNewY() - getPreviousY();
 	}
 
-	public Vec2 getChange(Vec2 result) {
+	public Vec2d getChange(Vec2d result) {
+		if (result == null) {
+			result = new Vec2d();
+		}
 		return result.set(getChangeX(), getChangeY());
 	}
 

src/main/java/ru/windcorp/progressia/client/graphics/input/InputEvent.java

@@ -18,10 +18,32 @@
 
 package ru.windcorp.progressia.client.graphics.input;
 
+import ru.windcorp.progressia.client.graphics.gui.Component;
+
+/**
+ * An instance of user input.
+ * <p>
+ * User input events are typically generated by graphics backend between frames
+ * and passed to the graphics layers from top to bottom. Layers that use
+ * {@link Component}s will forward this event through the Component hierarchy.
+ * <p>
+ * Events have a {@code consumed} flag. A freshly-generated event will have this
+ * flag set to {@code false}. Event listeners that process the event will
+ * usually choose to raise the flag ("consume the event") to ask future
+ * listeners to ignore this event. This is done to avoid multiple UI interfaces
+ * reacting to single input. By default, listeners will not receive consumed
+ * events; however, some listeners may choose to receive, handle and even
+ * un-consume the event.
+ * <p>
+ * {@code InputEvent} objects may be reused for future input events after their
+ * processing is complete; to obtain a static copy, use {@link #snapshot()}.
+ */
 public abstract class InputEvent {
 
 	private double time;
 
+	private boolean isConsumed = false;
+
 	public InputEvent(double time) {
 		this.time = time;
 	}
@@ -36,4 +58,16 @@ public abstract class InputEvent {
 
 	public abstract InputEvent snapshot();
 
+	public boolean isConsumed() {
+		return isConsumed;
+	}
+
+	public void setConsumed(boolean isConsumed) {
+		this.isConsumed = isConsumed;
+	}
+
+	public void consume() {
+		setConsumed(true);
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/input/KeyMatcher.java

@@ -18,16 +18,75 @@
  
 package ru.windcorp.progressia.client.graphics.input;
 
-import java.util.function.Predicate;
+import java.util.Map;
+import java.util.regex.Pattern;
 
 import org.lwjgl.glfw.GLFW;
 
+import com.google.common.collect.ImmutableMap;
+
 public class KeyMatcher {
 	
+	private static final Pattern DECLAR_SPLIT_REGEX = Pattern.compile("\\s*\\+\\s*");
+	private static final Map<String, Integer> MOD_TOKENS = ImmutableMap.of(
+		"SHIFT", GLFW.GLFW_MOD_SHIFT,
+		"CONTROL", GLFW.GLFW_MOD_CONTROL,
+		"ALT", GLFW.GLFW_MOD_ALT,
+		"SUPER", GLFW.GLFW_MOD_SUPER
+	);
+	
+	public static final KeyMatcher LMB = new KeyMatcher(GLFW.GLFW_MOUSE_BUTTON_LEFT);
+	public static final KeyMatcher RMB = new KeyMatcher(GLFW.GLFW_MOUSE_BUTTON_RIGHT);
+	public static final KeyMatcher MMB = new KeyMatcher(GLFW.GLFW_MOUSE_BUTTON_MIDDLE);
+
 	private final int key;
 	private final int mods;
 
-	protected KeyMatcher(int key, int mods) {
+	public KeyMatcher(int key, int mods) {
+		this.key = key;
+		this.mods = mods;
+	}
+	
+	public KeyMatcher(int key) {
+		this.key = key;
+		this.mods = 0;
+	}
+	
+	public KeyMatcher(String declar) {
+		String[] tokens = DECLAR_SPLIT_REGEX.split(declar);
+		if (tokens.length == 0) {
+			throw new IllegalArgumentException("No tokens found in \"" + declar + "\"");
+		}
+		
+		int key = -1;
+		int mods = 0;
+		
+		for (String token : tokens) {
+			token = token.toUpperCase();
+			
+			if (MOD_TOKENS.containsKey(token)) {
+				int mod = MOD_TOKENS.get(token);
+				if ((mods & mod) != 0) {
+					throw new IllegalArgumentException("Duplicate modifier \"" + token + "\" in \"" + declar + "\"");
+				}
+				mods |= mod;
+			} else if (key != -1) {
+				throw new IllegalArgumentException("Too many non-modifier tokens in \"" + declar + "\": maximum one key, first offender: \"" + token + "\"");
+			} else {
+				token = token.replace(' ', '_');
+				
+				if (token.startsWith("KEYPAD_")) {
+					token = "KP_" + token.substring("KEYPAD_".length());
+				}
+			
+				key = Keys.getCode(token);
+				
+				if (key == -1) {
+					throw new IllegalArgumentException("Unknown token \"" + token + "\" in \"" + declar + "\"");
+				}
+			}
+		}
+		
 		this.key = key;
 		this.mods = mods;
 	}
@@ -43,6 +102,15 @@ public class KeyMatcher {
 		return true;
 	}
 	
+	public boolean matchesIgnoringAction(KeyEvent event) {
+		if (event.getKey() != getKey())
+			return false;
+		if ((event.getMods() & getMods()) != getMods())
+			return false;
+
+		return true;
+	}
+
 	public int getKey() {
 		return key;
 	}
@@ -51,48 +119,24 @@ public class KeyMatcher {
 		return mods;
 	}
 	
-	public static KeyMatcher.Builder of(int key) {
-		return new KeyMatcher.Builder(key);
+	public KeyMatcher with(int modifier) {
+		return new KeyMatcher(key, mods | modifier);
 	}
 
-	public static class Builder {
-
-		private final int key;
-		private int mods = 0;
-
-		public Builder(int key) {
-			this.key = key;
-		}
-
-		public Builder with(int modifier) {
-			this.mods += modifier;
-			return this;
-		}
-
-		public Builder withShift() {
+	public KeyMatcher withShift() {
 		return with(GLFW.GLFW_MOD_SHIFT);
 	}
 
-		public Builder withCtrl() {
+	public KeyMatcher withCtrl() {
 		return with(GLFW.GLFW_MOD_CONTROL);
 	}
 
-		public Builder withAlt() {
+	public KeyMatcher withAlt() {
 		return with(GLFW.GLFW_MOD_ALT);
 	}
 
-		public Builder withSuper() {
+	public KeyMatcher withSuper() {
 		return with(GLFW.GLFW_MOD_SUPER);
 	}
 
-		public KeyMatcher build() {
-			return new KeyMatcher(key, mods);
-		}
-
-		public Predicate<KeyEvent> matcher() {
-			return build()::matches;
-		}
-
-	}
-
 }

src/main/java/ru/windcorp/progressia/client/graphics/input/Keys.java

@@ -139,7 +139,7 @@ public class Keys {
 	}
 
 	public static int getCode(String internalName) {
-		if (NAMES_TO_CODES.containsKey(internalName)) {
+		if (!NAMES_TO_CODES.containsKey(internalName)) {
 			return -1;
 		} else {
 			return NAMES_TO_CODES.get(internalName);

src/main/java/ru/windcorp/progressia/client/graphics/input/bus/InputBus.java

@@ -20,68 +20,396 @@ package ru.windcorp.progressia.client.graphics.input.bus;
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Objects;
 
+import ru.windcorp.jputil.ArrayUtil;
+import ru.windcorp.progressia.client.graphics.gui.Component;
+import ru.windcorp.progressia.client.graphics.input.CursorEvent;
 import ru.windcorp.progressia.client.graphics.input.InputEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.input.WheelEvent;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
+/**
+ * An event bus optionally related to a {@link Component} that delivers input
+ * events to input listeners. This bus may skip listeners based on circumstance;
+ * behavior can be customized for each listener with {@link Option}s.
+ * <p>
+ * By default, events are filtered by four checks before being delivered to each
+ * listener:
+ * <ol>
+ * <li><em>Consumption check</em>: unless {@link Option#RECEIVE_CONSUMED
+ * RECEIVE_CONSUMED} is set, events that are consumed will not be
+ * delivered.</li>
+ * <li><em>Hover check</em>: for certain event types (for example,
+ * {@link WheelEvent} or {@link KeyEvent} that {@link KeyEvent#isMouse()
+ * isMouse()}), the event will only be delivered if the component is hovered.
+ * This check may be bypassed with option {@link Option#IGNORE_HOVER
+ * IGNORE_HOVER} or made mandatory for all events with
+ * {@link Option#REQUIRE_HOVER REQUIRE_HOVER}. Hover check automatically
+ * succeeds if no component is provided.</li>
+ * <li><em>Focus check</em>: for certain event types (for example,
+ * {@link KeyEvent} that {@code !isMouse()}), the event will only be delivered
+ * if the component has focus. This check may be bypassed with option
+ * {@link Option#IGNORE_FOCUS IGNORE_FOCUS} or made mandatory for all events
+ * with {@link Option#REQUIRE_FOCUS REQUIRE_FOCUS}. Focus check automatically
+ * succeeds if no component is provided.</li>
+ * <li><em>Type check</em>: events of type {@code E} are only delivered to
+ * listeners registered with event type {@code T} if objects of type {@code E}
+ * can be cast to {@code T}.</li>
+ * </ol>
+ * Checks 1-3 are bypassed when option {@link Option#ALWAYS ALWAYS} is
+ * specified.
+ */
 public class InputBus {
 
-	private static class WrappedListener {
+	/**
+	 * Options that allow customization of checks for listeners.
+	 */
+	public enum Option {
+
+		/**
+		 * Ignore checks for consumed events, hover and focus; deliver event if
+		 * at all possible. This is shorthand for {@link #RECEIVE_CONSUMED},
+		 * {@link #IGNORE_HOVER} and {@link #IGNORE_FOCUS}.
+		 */
+		ALWAYS,
+
+		/**
+		 * Receive events that were previously consumed.
+		 */
+		RECEIVE_CONSUMED,
+
+		/**
+		 * Do not process events if the listener is registered with a component
+		 * and the component is not hovered.
+		 */
+		REQUIRE_HOVER,
+
+		/**
+		 * Deliver events even if the event is limited to hovered components by
+		 * default.
+		 */
+		IGNORE_HOVER,
+
+		/**
+		 * Do not process events if the listener is registered with a component
+		 * and the component is not focused.
+		 */
+		REQUIRE_FOCUS,
+
+		/**
+		 * Deliver events even if the event is limited to focused components by
+		 * default.
+		 */
+		IGNORE_FOCUS,
+
+		/**
+		 * Deliver events according to
+		 * {@link KeyMatcher#matchesIgnoringAction(KeyEvent)} rather than
+		 * {@link KeyMatcher#matches(KeyEvent)} when a {@link KeyMatcher} is
+		 * specified.
+		 */
+		IGNORE_ACTION;
+
+	}
+
+	private enum YesNoDefault {
+		YES, NO, DEFAULT;
+	}
+
+	/**
+	 * A listener with check preferences resolved and type specified.
+	 */
+	private class WrappedListener {
 
 		private final Class<?> type;
-		private final boolean handleConsumed;
+
+		private final boolean dropIfConsumed;
+		private final YesNoDefault dropIfNotHovered;
+		private final YesNoDefault dropIfNotFocused;
+
 		private final InputListener<?> listener;
 
 		public WrappedListener(
 			Class<?> type,
-			boolean handleConsumed,
+			boolean dropIfConsumed,
+			YesNoDefault dropIfNotHovered,
+			YesNoDefault dropIfNotFocused,
 			InputListener<?> listener
 		) {
 			this.type = type;
-			this.handleConsumed = handleConsumed;
+			this.dropIfConsumed = dropIfConsumed;
+			this.dropIfNotHovered = dropIfNotHovered;
+			this.dropIfNotFocused = dropIfNotFocused;
 			this.listener = listener;
 		}
 
-		private boolean handles(Input input) {
-			return (!input.isConsumed() || handleConsumed) &&
-				type.isInstance(input.getEvent());
+		private boolean handles(InputEvent input) {
+			if (dropIfConsumed && input.isConsumed())
+				return false;
+
+			switch (dropIfNotHovered) {
+			case YES:
+				if (!isHovered())
+					return false;
+				break;
+			case NO:
+				break;
+			default:
+
+				if (isHovered())
+					break;
+
+				if (input instanceof KeyEvent && ((KeyEvent) input).isMouse())
+					return false;
+
+				if (input instanceof CursorEvent)
+					return false;
+
+				if (input instanceof WheelEvent)
+					return false;
+
+				break;
 			}
 
+			switch (dropIfNotFocused) {
+			case YES:
+				if (!isFocused())
+					return false;
+				break;
+			case NO:
+				break;
+			default:
+
+				if (isFocused())
+					break;
+
+				if (input instanceof KeyEvent && !((KeyEvent) input).isMouse())
+					return false;
+
+				break;
+			}
+
+			if (!type.isInstance(input))
+				return false;
+
+			return true;
+		}
+
+		/**
+		 * Invokes the listener if the event is deemed appropriate by the four
+		 * checks.
+		 * 
+		 * @param event the event to deliver
+		 */
 		@SuppressWarnings("unchecked")
-		public void handle(Input input) {
-			if (handles(input)) {
-				boolean consumed = ((InputListener<InputEvent>) listener)
-					.handle(
-						(InputEvent) type.cast(input.getEvent())
+		public void handle(InputEvent event) {
+			if (handles(event)) {
+				// A runtime check of types has been performed; this is safe.
+				InputListener<InputEvent> castListener = (InputListener<InputEvent>) listener;
+
+				try {
+					castListener.handle(event);
+				} catch (Exception e) {
+					throw CrashReports.report(
+						e,
+						"InputListener %s for component %s has failed to receive event %s",
+						listener,
+						owner,
+						event
 					);
-
-				input.setConsumed(consumed);
+				}
 			}
 		}
 
 	}
 
+	/**
+	 * The component queried for focus and hover. May be {@code null}.
+	 */
+	private final Component owner;
+
+	/**
+	 * Registered listeners.
+	 */
 	private final Collection<WrappedListener> listeners = new ArrayList<>(4);
 
-	public void dispatch(Input input) {
-		listeners.forEach(l -> l.handle(input));
+	/**
+	 * Creates a new input bus that consults the specified {@link Component} to
+	 * determine hover and focus.
+	 * 
+	 * @param owner the component to use for hover and focus tests
+	 * @see #InputBus()
+	 */
+	public InputBus(Component owner) {
+		this.owner = Objects.requireNonNull(owner, "owner");
 	}
 
+	/**
+	 * Creates a new input bus that assumes all hover and focus checks are
+	 * successful.
+	 * 
+	 * @see #InputBus(Component)
+	 */
+	public InputBus() {
+		this.owner = null;
+	}
+
+	/**
+	 * Determines whether hover should be assumed for this event bus.
+	 * 
+	 * @return {@code true} iff no component is linked or the linked component
+	 *         is hovered
+	 */
+	private boolean isHovered() {
+		return owner == null ? true : owner.isHovered();
+	}
+
+	/**
+	 * Determines whether focus should be assumed for this event bus.
+	 * 
+	 * @return {@code true} iff no component is linked or the linked component
+	 *         is focused
+	 */
+	private boolean isFocused() {
+		return owner == null ? true : owner.isFocused();
+	}
+
+	/**
+	 * Dispatches (delivers) the provided event to all appropriate listeners.
+	 * 
+	 * @param event the event to process
+	 */
+	public void dispatch(InputEvent event) {
+		Objects.requireNonNull(event, "event");
+		for (WrappedListener listener : listeners) {
+			listener.handle(event);
+		}
+	}
+
+	/**
+	 * Registers a listener on this bus.
+	 * <p>
+	 * {@code type} specifies the class of events that should be passed to this
+	 * listener. Only events of types that extend, implement or equal
+	 * {@code type} are processed.
+	 * <p>
+	 * Zero or more {@link Option}s may be specified to enable or disable the
+	 * processing of certain events in certain circumstances. See
+	 * {@linkplain InputBus class description} for a detailed breakdown of the
+	 * checks performed and the effects of various options. When providing
+	 * options to this method, later options override the effects of previous
+	 * options.
+	 * <p>
+	 * Option {@link Option#IGNORE_ACTION IGNORE_ACTION} is ignored silently.
+	 * 
+	 * @param type     the event class to deliver
+	 * @param listener the listener
+	 * @param options  the options for this listener
+	 */
 	public <T extends InputEvent> void register(
 		Class<? extends T> type,
-		boolean handlesConsumed,
-		InputListener<T> listener
+		InputListener<T> listener,
+		Option... options
 	) {
-		listeners.add(new WrappedListener(type, handlesConsumed, listener));
+		Objects.requireNonNull(type, "type");
+		Objects.requireNonNull(listener, "listener");
+
+		boolean dropIfConsumed = true;
+		YesNoDefault dropIfNotHovered = YesNoDefault.DEFAULT;
+		YesNoDefault dropIfNotFocused = YesNoDefault.DEFAULT;
+
+		if (options != null) {
+			for (Option option : options) {
+				switch (option) {
+				case ALWAYS:
+					dropIfConsumed = false;
+					dropIfNotHovered = YesNoDefault.NO;
+					dropIfNotFocused = YesNoDefault.NO;
+					break;
+				case RECEIVE_CONSUMED:
+					dropIfConsumed = false;
+					break;
+				case REQUIRE_HOVER:
+					dropIfNotHovered = YesNoDefault.YES;
+					break;
+				case IGNORE_HOVER:
+					dropIfNotFocused = YesNoDefault.NO;
+					break;
+				case REQUIRE_FOCUS:
+					dropIfNotHovered = YesNoDefault.YES;
+					break;
+				case IGNORE_FOCUS:
+					dropIfNotFocused = YesNoDefault.NO;
+					break;
+				case IGNORE_ACTION:
+					// Ignore
+					break;
+				default:
+					throw new IllegalArgumentException("Unexpected option " + option);
+				}
+			}
 		}
 
-	public <T extends InputEvent> void register(
-		Class<? extends T> type,
-		InputListener<T> listener
-	) {
-		register(type, false, listener);
+		listeners.add(new WrappedListener(type, dropIfConsumed, dropIfNotHovered, dropIfNotFocused, listener));
 	}
 
+	/**
+	 * Registers a {@link KeyEvent} listener on this bus. An event has to match
+	 * the provided {@link KeyMatcher} to be delivered to the listener.
+	 * <p>
+	 * Zero or more {@link Option}s may be specified to enable or disable the
+	 * processing of certain events in certain circumstances. See
+	 * {@linkplain InputBus class description} for a detailed breakdown of the
+	 * checks performed and the effects of various options. When providing
+	 * options to this method, later options override the effects of previous
+	 * options.
+	 * <p>
+	 * Option {@link Option#IGNORE_ACTION IGNORE_ACTION} requests that events
+	 * are delivered according to
+	 * {@link KeyMatcher#matchesIgnoringAction(KeyEvent)} rather than
+	 * {@link KeyMatcher#matches(KeyEvent)}.
+	 * specified.
+	 * 
+	 * @param matcher  an event filter
+	 * @param listener the listener
+	 * @param options  the options for this listener
+	 */
+	public void register(KeyMatcher matcher, InputListener<? super KeyEvent> listener, Option... options) {
+		Objects.requireNonNull(matcher, "matcher");
+		Objects.requireNonNull(listener, "listener");
+
+		InputListener<KeyEvent> filteringListener;
+
+		if (ArrayUtil.firstIndexOf(options, Option.IGNORE_ACTION) != -1) {
+			filteringListener = e -> {
+				if (matcher.matchesIgnoringAction(e)) {
+					listener.handle(e);
+				}
+			};
+		} else {
+			filteringListener = e -> {
+				if (matcher.matches(e)) {
+					listener.handle(e);
+				}
+			};
+		}
+
+		register(KeyEvent.class, filteringListener, options);
+	}
+
+	/**
+	 * Removes all occurrences of the provided listener from this bus.
+	 * 
+	 * @param listener the listener to unregister
+	 */
 	public void unregister(InputListener<?> listener) {
+		if (listener == null) {
+			return;
+		}
+
 		listeners.removeIf(l -> l.listener == listener);
 	}
 

src/main/java/ru/windcorp/progressia/client/graphics/input/bus/InputListener.java

@@ -23,6 +23,6 @@ import ru.windcorp.progressia.client.graphics.input.InputEvent;
 @FunctionalInterface
 public interface InputListener<T extends InputEvent> {
 
-	boolean handle(T event);
+	void handle(T event);
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/model/ShapeParts.java

@@ -25,6 +25,7 @@ import glm.vec._3.Vec3;
 import glm.vec._4.Vec4;
 import ru.windcorp.progressia.client.graphics.model.ShapeRenderProgram.VertexBuilder;
 import ru.windcorp.progressia.client.graphics.texture.Texture;
+import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram.WRPVertexBuilder;
 import ru.windcorp.progressia.common.world.rels.AbsFace;
 
 public class ShapeParts {
@@ -40,9 +41,48 @@ public class ShapeParts {
 		Vec3 width,
 		Vec3 height,
 		boolean flip
+	) {
+		return createRectangle(program, texture, colorMultiplier, origin, width, height, flip, null);
+	}
+
+	public static ShapePart createRectangle(
+		ShapeRenderProgram program,
+		Texture texture,
+		Vec4 colorMultiplier,
+		Vec3 origin,
+		Vec3 width,
+		Vec3 height,
+		boolean flip,
+		Vec3 forcedNormals
 	) {
 		VertexBuilder builder = program.getVertexBuilder();
 		
+		if (forcedNormals != null && builder instanceof WRPVertexBuilder) {
+			((WRPVertexBuilder) builder).addVertex(
+				origin,
+				colorMultiplier,
+				new Vec2(0, 0),
+				forcedNormals
+			);
+			((WRPVertexBuilder) builder).addVertex(
+				origin.add_(height),
+				colorMultiplier,
+				new Vec2(0, 1),
+				forcedNormals
+			);
+			((WRPVertexBuilder) builder).addVertex(
+				origin.add_(width),
+				colorMultiplier,
+				new Vec2(1, 0),
+				forcedNormals
+			);
+			((WRPVertexBuilder) builder).addVertex(
+				origin.add_(width).add(height),
+				colorMultiplier,
+				new Vec2(1, 1),
+				forcedNormals
+			);
+		} else {
 			builder.addVertex(
 				origin,
 				colorMultiplier,
@@ -60,6 +100,7 @@ public class ShapeParts {
 				colorMultiplier,
 				new Vec2(1, 1)
 			);
+		}
 
 		ShortBuffer buffer = flip ? ShortBuffer.wrap(
 			new short[] {

src/main/java/ru/windcorp/progressia/client/graphics/model/ShapePrototype.java

@@ -0,0 +1,248 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.model;
+
+import java.nio.ShortBuffer;
+import java.util.Objects;
+
+import glm.mat._3.Mat3;
+import glm.mat._4.Mat4;
+import glm.vec._2.Vec2;
+import glm.vec._3.Vec3;
+import glm.vec._4.Vec4;
+import ru.windcorp.progressia.client.graphics.Colors;
+import ru.windcorp.progressia.client.graphics.model.ShapeRenderProgram.VertexBuilder;
+import ru.windcorp.progressia.client.graphics.texture.Texture;
+import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram;
+import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram.WRPVertexBuilder;
+import ru.windcorp.progressia.common.util.StashingStack;
+import ru.windcorp.progressia.common.util.VectorUtil;
+
+public class ShapePrototype {
+	
+	private final ShapeRenderProgram program;
+	
+	private Texture texture;
+	
+	private final Vec3[] positions;
+	private final Vec4[] colorMultipliers;
+	private final Vec2[] textureCoords;
+	private final Vec3[] forcedNormals;
+	
+	private ShortBuffer indices;
+	private ShortBuffer flippedIndices = null;
+
+	protected static final int TRANSFORM_STACK_SIZE = 64;
+	private final StashingStack<Mat4> transformStack = new StashingStack<>(
+		TRANSFORM_STACK_SIZE,
+		Mat4::new
+	);
+	
+	public ShapePrototype(
+		ShapeRenderProgram program,
+		Texture texture,
+		Vec3[] positions,
+		Vec4[] colorMultipliers,
+		Vec2[] textureCoords,
+		Vec3[] forcedNormals,
+		ShortBuffer indices
+	) {
+		this.program = Objects.requireNonNull(program, "program");
+		this.texture = texture;
+		this.indices = Objects.requireNonNull(indices, "indices");
+
+		Objects.requireNonNull(positions, "positions");
+		Objects.requireNonNull(colorMultipliers, "colorMultipliers");
+		Objects.requireNonNull(textureCoords, "textureCoords");
+		
+		if (forcedNormals != null && !(program instanceof WorldRenderProgram)) {
+			throw new IllegalArgumentException("Cannot force normals on non-WorldRenderPrograms cuz javahorse stupiddd");
+		}
+		
+		if (forcedNormals == null) {
+			forcedNormals = new Vec3[positions.length];
+		}
+		
+		this.positions = positions;
+		this.colorMultipliers = colorMultipliers;
+		this.textureCoords = textureCoords;
+		this.forcedNormals = forcedNormals;
+		
+		if (positions.length != colorMultipliers.length) {
+			throw new IllegalArgumentException("positions.length (" + positions.length + ") != colorMultipliers.length (" + colorMultipliers + ")");
+		}
+		
+		if (positions.length != textureCoords.length) {
+			throw new IllegalArgumentException("positions.length (" + positions.length + ") != textureCoords.length (" + textureCoords + ")");
+		}
+		
+		if (positions.length != forcedNormals.length) {
+			throw new IllegalArgumentException("positions.length (" + positions.length + ") != forcedNormals.length (" + forcedNormals + ")");
+		}
+		
+		transformStack.push().identity();
+	}
+	
+	public ShapePart build() {
+		VertexBuilder builder = program.getVertexBuilder();
+
+		Vec3 transformedPosition = new Vec3();
+		
+		for (int i = 0; i < positions.length; ++i) {
+			
+			transformedPosition.set(positions[i]);
+			if (transformStack.getSize() > 1) {
+				VectorUtil.applyMat4(transformedPosition, transformStack.getHead());
+			}
+			
+			if (forcedNormals[i] != null && builder instanceof WRPVertexBuilder) {
+				((WRPVertexBuilder) builder).addVertex(
+					transformedPosition, colorMultipliers[i], textureCoords[i], forcedNormals[i]
+				);
+			} else {
+				builder.addVertex(transformedPosition, colorMultipliers[i], textureCoords[i]);
+			}
+		}
+		
+		return new ShapePart(texture, builder.assemble(), indices);
+	}
+	
+	public ShapePrototype apply(Mat4 transform) {
+		for (Vec3 vector : positions) {
+			VectorUtil.applyMat4(vector, transform);
+		}
+		return this;
+	}
+	
+	public ShapePrototype apply(Mat3 transform) {
+		for (Vec3 vector : positions) {
+			transform.mul(vector);
+		}
+		return this;
+	}
+	
+	public Mat4 push() {
+		Mat4 previous = transformStack.getHead();
+		return transformStack.push().set(previous);
+	}
+	
+	public ShapePrototype pop() {
+		transformStack.pop();
+		return this;
+	}
+	
+	public ShapePrototype setTexture(Texture texture) {
+		this.texture = texture;
+		return this;
+	}
+	
+	public ShapePrototype deleteTexture() {
+		this.texture = null;
+		return this;
+	}
+	
+	public ShapePrototype resetColorMultiplier() {
+		for (Vec4 color : colorMultipliers) {
+			color.set(Colors.WHITE);
+		}
+		return this;
+	}
+	
+	public ShapePrototype addColorMultiplier(Vec4 color) {
+		for (Vec4 c : colorMultipliers) {
+			c.mul(color);
+		}
+		return this;
+	}
+	
+	public ShapePrototype flip() {
+		ShortBuffer tmp = indices;
+		indices = flippedIndices;
+		flippedIndices = tmp;
+		
+		if (indices == null) {
+			int length = flippedIndices.limit();
+			indices = ShortBuffer.allocate(length);
+			for (int i = 0; i < length; ++i) {
+				indices.put(i, flippedIndices.get(length - i - 1));
+			}
+		}
+		
+		return this;
+	}
+	
+	public ShapePrototype makeDoubleSided() {
+		int length = indices.limit();
+		ShortBuffer newIndices = ShortBuffer.allocate(length * 2);
+		
+		for (int i = 0; i < length; ++i) {
+			newIndices.put(i, indices.get(i));
+		}
+		for (int i = 0; i < length; ++i) {
+			newIndices.put(i + length, indices.get(length - i - 1));
+		}
+		
+		indices = flippedIndices = newIndices;
+		
+		return this;
+	}
+	
+	public static ShapePrototype unitSquare(Texture texture, Vec4 color, ShapeRenderProgram program) {
+		return new ShapePrototype(
+			program,
+			texture,
+			new Vec3[] {
+				new Vec3(0, 0, 0),
+				new Vec3(0, 1, 0),
+				new Vec3(1, 0, 0),
+				new Vec3(1, 1, 0)
+			},
+			new Vec4[] {
+				new Vec4(color),
+				new Vec4(color),
+				new Vec4(color),
+				new Vec4(color)
+			},
+			new Vec2[] {
+				new Vec2(0, 0),
+				new Vec2(0, 1),
+				new Vec2(1, 0),
+				new Vec2(1, 1)
+			},
+			null,
+			ShortBuffer.wrap(new short[] {3, 1, 0, 2, 3, 0})
+		);
+	}
+	
+	public static ShapePrototype unitSquare(Texture texture, Vec4 color) {
+		return unitSquare(texture, color, WorldRenderProgram.getDefault());
+	}
+	
+	public static ShapePrototype unitSquare(Texture texture) {
+		return unitSquare(texture, Colors.WHITE, WorldRenderProgram.getDefault());
+	}
+	
+	public static ShapePrototype unitSquare(Vec4 color) {
+		return unitSquare(null, color, WorldRenderProgram.getDefault());
+	}
+	
+	public static ShapePrototype unitSquare() {
+		return unitSquare(null, Colors.WHITE, WorldRenderProgram.getDefault());
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/texture/Atlases.java

@@ -163,7 +163,7 @@ public class Atlases {
 		}
 	}
 
-	private static final TextureSettings SETTINGS = new TextureSettings(false);
+	private static final TextureSettings SETTINGS = new TextureSettings(false, false);
 
 	private static final Map<Resource, Sprite> LOADED = new HashMap<>();
 	private static final Multimap<AtlasGroup, Atlas> ATLASES = MultimapBuilder.hashKeys().arrayListValues().build();

src/main/java/ru/windcorp/progressia/client/graphics/texture/SimpleTextures.java

@@ -28,7 +28,7 @@ import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class SimpleTextures {
 
-	private static final TextureSettings SETTINGS = new TextureSettings(false);
+	private static final TextureSettings SETTINGS = new TextureSettings(false, false);
 
 	private static final Map<Resource, Texture> TEXTURES = new HashMap<>();
 

src/main/java/ru/windcorp/progressia/client/graphics/texture/TextureData.java

@@ -23,7 +23,7 @@ import static org.lwjgl.opengl.GL12.*;
 
 import java.nio.ByteBuffer;
 
-class TextureData {
+public class TextureData {
 
 	private final ByteBuffer data;
 

src/main/java/ru/windcorp/progressia/client/graphics/texture/TextureLoader.java

@@ -28,6 +28,7 @@ import javax.imageio.ImageIO;
 
 import ru.windcorp.progressia.common.resource.Resource;
 import ru.windcorp.progressia.common.util.BinUtil;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class TextureLoader {
 
@@ -41,8 +42,16 @@ public class TextureLoader {
 		int width = readResult.getWidth();
 		int height = readResult.getHeight();
 		
-		int bufferWidth = BinUtil.roundToGreaterPowerOf2(width);
-		int bufferHeight = BinUtil.roundToGreaterPowerOf2(height);
+		int bufferWidth;
+		int bufferHeight;
+
+		if (settings.allocateExactBuffer()) {
+			bufferWidth = width;
+			bufferHeight = height;
+		} else {
+			bufferWidth = BinUtil.roundToGreaterPowerOf2(width);
+			bufferHeight = BinUtil.roundToGreaterPowerOf2(height);
+		}
 
 		WritableRaster raster = TextureUtil.createRaster(
 			bufferWidth,
@@ -99,7 +108,12 @@ public class TextureLoader {
 		TextureSettings settings
 	)
 		throws IOException {
-		return loadPixels(resource.getInputStream(), settings);
+		
+		InputStream stream = resource.getInputStream();
+		if (stream == null) {
+			throw CrashReports.report(null, "Texture \"%s\" not found", resource.getName());
+		}
+		return loadPixels(stream, settings);
 	}
 
 	private TextureLoader() {

src/main/java/ru/windcorp/progressia/client/graphics/texture/TextureSettings.java

@@ -21,13 +21,19 @@ package ru.windcorp.progressia.client.graphics.texture;
 public class TextureSettings {
 
 	private final boolean isFiltered;
+	private final boolean allocateExactBuffer;
 
-	public TextureSettings(boolean isFiltered) {
+	public TextureSettings(boolean isFiltered, boolean allocateExactBuffer) {
 		this.isFiltered = isFiltered;
+		this.allocateExactBuffer = allocateExactBuffer;
 	}
 
 	public boolean isFiltered() {
 		return isFiltered;
 	}
 	
+	public boolean allocateExactBuffer() {
+		return allocateExactBuffer;
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/world/EntityAnchor.java

@@ -92,4 +92,13 @@ public class EntityAnchor implements Anchor {
 		return modes;
 	}
 	
+	public EntityData getEntity() {
+		return entity;
+	}
+	
+	@Override
+	public String toString() {
+		return "Anchor for entity " + entity;
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/world/LayerWorld.java

@@ -31,7 +31,7 @@ import ru.windcorp.progressia.client.comms.controls.InputBasedControls;
 import ru.windcorp.progressia.client.graphics.Layer;
 import ru.windcorp.progressia.client.graphics.backend.FaceCulling;
 import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
 import ru.windcorp.progressia.client.graphics.model.Renderable;
 import ru.windcorp.progressia.client.graphics.model.ShapeRenderProgram;
 import ru.windcorp.progressia.client.graphics.model.Shapes.PppBuilder;
@@ -45,7 +45,7 @@ import ru.windcorp.progressia.common.util.Vectors;
 import ru.windcorp.progressia.common.world.GravityModel;
 import ru.windcorp.progressia.common.world.entity.EntityData;
 import ru.windcorp.progressia.test.CollisionModelRenderer;
-import ru.windcorp.progressia.test.TestPlayerControls;
+import ru.windcorp.progressia.test.controls.TestPlayerControls;
 
 public class LayerWorld extends Layer {
 
@@ -214,6 +214,9 @@ public class LayerWorld extends Layer {
 		if (ClientState.getInstance().getLocalPlayer().getEntity() == entity && tmp_testControls.isFlying()) {
 			return;
 		}
+		if (entity.getId().equals("Test:NoclipCamera")) {
+			return;
+		}
 
 		Vec3 gravitationalAcceleration = Vectors.grab3();
 		gm.getGravity(entity.getPosition(), gravitationalAcceleration);
@@ -225,14 +228,9 @@ public class LayerWorld extends Layer {
 	}
 
 	@Override
-	protected void handleInput(Input input) {
-		if (input.isConsumed())
-			return;
-
-		tmp_testControls.handleInput(input);
-
-		if (!input.isConsumed()) {
-			inputBasedControls.handleInput(input);
+	public void handleInput(InputEvent event) {
+		if (!event.isConsumed()) {
+			inputBasedControls.handleInput(event);
 		}
 	}
 

src/main/java/ru/windcorp/progressia/client/graphics/world/WorldRenderProgram.java

@@ -200,6 +200,10 @@ public class WorldRenderProgram extends ShapeRenderProgram {
 			4 * Float.BYTES +
 			2 * Float.BYTES);
 		
+		if (!Float.isNaN(vertices.getFloat(offset + 0 * Float.BYTES))) {
+			return; // normals are forced
+		}
+
 		vertices.putFloat(offset + 0 * Float.BYTES, normal.x);
 		vertices.putFloat(offset + 1 * Float.BYTES, normal.y);
 		vertices.putFloat(offset + 2 * Float.BYTES, normal.z);
@@ -212,7 +216,7 @@ public class WorldRenderProgram extends ShapeRenderProgram {
 		return new WRPVertexBuilder();
 	}
 
-	private static class WRPVertexBuilder implements VertexBuilder {
+	public static class WRPVertexBuilder implements VertexBuilder {
 		// TODO Throw VertexBuilders out the window and rewrite completely.
 		// I want to _extend_ VBs, not re-implement them for children of SRP
 
@@ -220,11 +224,17 @@ public class WorldRenderProgram extends ShapeRenderProgram {
 			final Vec3 position;
 			final Vec4 colorMultiplier;
 			final Vec2 textureCoords;
+			final Vec3 normals;
 			
 			Vertex(Vec3 position, Vec4 colorMultiplier, Vec2 textureCoords) {
+				this(position, colorMultiplier, textureCoords, new Vec3(Float.NaN, Float.NaN, Float.NaN));
+			}
+
+			Vertex(Vec3 position, Vec4 colorMultiplier, Vec2 textureCoords, Vec3 normals) {
 				this.position = position;
 				this.colorMultiplier = colorMultiplier;
 				this.textureCoords = textureCoords;
+				this.normals = normals;
 			}
 		}
 
@@ -292,6 +302,24 @@ public class WorldRenderProgram extends ShapeRenderProgram {
 			return this;
 		}
 		
+		public VertexBuilder addVertex(
+			Vec3 position,
+			Vec4 colorMultiplier,
+			Vec2 textureCoords,
+			Vec3 normals
+		) {
+			vertices.add(
+				new Vertex(
+					new Vec3(position),
+					new Vec4(colorMultiplier),
+					new Vec2(textureCoords),
+					new Vec3(normals)
+				)
+			);
+
+			return this;
+		}
+
 		@Override
 		public ByteBuffer assemble() {
 			ByteBuffer result = BufferUtils.createByteBuffer(
@@ -309,9 +337,9 @@ public class WorldRenderProgram extends ShapeRenderProgram {
 					.putFloat(v.colorMultiplier.w)
 					.putFloat(v.textureCoords.x)
 					.putFloat(v.textureCoords.y)
-					.putFloat(Float.NaN)
-					.putFloat(Float.NaN)
-					.putFloat(Float.NaN);
+					.putFloat(v.normals.x)
+					.putFloat(v.normals.y)
+					.putFloat(v.normals.z);
 			}
 
 			result.flip();

src/main/java/ru/windcorp/progressia/client/localization/Localizer.java

@@ -73,6 +73,12 @@ public class Localizer {
 		return language;
 	}
 	
+	public List<String> getLanguages() {
+		List<String> result = new ArrayList<>(langList.keySet());
+		result.sort(null);
+		return result;
+	}
+
 	public synchronized String getValue(String key) {
 		if (data == null) {
 			throw new IllegalStateException("Localizer not yet initialized");

src/main/java/ru/windcorp/progressia/client/world/entity/EntityRenderRegistry.java

@@ -42,7 +42,7 @@ public class EntityRenderRegistry extends NamespacedInstanceRegistry<EntityRende
 					ResourceManager.getTextureResource(
 						"entities/" + name
 					),
-					new TextureSettings(false)
+					new TextureSettings(false, false)
 				).getData()
 			);
 		} catch (IOException e) {

src/main/java/ru/windcorp/progressia/client/world/tile/TileRenderCross.java

@@ -114,7 +114,8 @@ public class TileRenderCross extends TileRender implements TileOptimizedCustom {
 						origin,
 						width,
 						height,
-						false
+						false,
+						new Vec3(0, 0, 1)
 					)
 				);
 				output.accept(
@@ -125,7 +126,8 @@ public class TileRenderCross extends TileRender implements TileOptimizedCustom {
 						origin,
 						width,
 						height,
-						true
+						true,
+						new Vec3(0, 0, 1)
 					)
 				);
 			}

src/main/java/ru/windcorp/progressia/common/collision/colliders/Collider.java

@@ -105,6 +105,9 @@ public class Collider {
 		// For every pair of colls
 		for (int i = 0; i < colls.size(); ++i) {
 			Collideable a = colls.get(i);
+			if (a.getCollisionModel() == null) {
+				continue;
+			}
 
 			tuneWorldCollisionHelper(a, tickLength, world, workspace);
 
@@ -115,6 +118,10 @@ public class Collider {
 
 			for (int j = i + 1; j < colls.size(); ++j) {
 				Collideable b = colls.get(j);
+				if (b.getCollisionModel() == null) {
+					continue;
+				}
+				
 				Collision collision = getCollision(a, b, tickLength, workspace);
 				result = workspace.updateLatestCollision(result, collision);
 			}

src/main/java/ru/windcorp/progressia/common/state/StatefulObject.java

@@ -235,7 +235,7 @@ public abstract class StatefulObject extends Namespaced implements Encodable {
 
 		StatefulObject statefulObj = (StatefulObject) obj;
 
-		if (statefulObj.getId().equals(this.getId()))
+		if (!statefulObj.getId().equals(this.getId()))
 			return false;
 
 		return true;

src/main/java/ru/windcorp/progressia/common/util/crash/providers/VersionProvider.java

@@ -0,0 +1,40 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.common.util.crash.providers;
+
+import java.util.Map;
+
+import ru.windcorp.progressia.Progressia;
+import ru.windcorp.progressia.common.util.crash.ContextProvider;
+
+public class VersionProvider implements ContextProvider {
+
+	@Override
+	public void provideContext(Map<String, String> output) {
+		output.put("Version", Progressia.getVersion());
+		output.put("Git commit", Progressia.getGitCommit());
+		output.put("Git branch", Progressia.getGitBranch());
+		output.put("Build ID", Progressia.getBuildId());
+	}
+
+	@Override
+	public String getName() {
+		return "Version Provider";
+	}
+
+}

src/main/java/ru/windcorp/progressia/common/world/entity/EntityData.java

@@ -380,4 +380,14 @@ public class EntityData extends StatefulObject implements Collideable, EntityGen
 		super.read(input, context);
 	}
 	
+	@Override
+	public boolean equals(Object obj) {
+		return this == obj;
+	}
+	
+	@Override
+	public int hashCode() {
+		return Long.hashCode(entityId);
+	}
+
 }

src/main/java/ru/windcorp/progressia/test/Flowers.java

@@ -0,0 +1,147 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+import ru.windcorp.progressia.client.graphics.texture.Texture;
+import ru.windcorp.progressia.client.world.tile.TileRenderRegistry;
+import ru.windcorp.progressia.client.world.tile.TileRenderTransparentSurface;
+import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.common.world.tile.TileDataRegistry;
+import ru.windcorp.progressia.server.world.tile.HangingTileLogic;
+import ru.windcorp.progressia.server.world.tile.TileLogicRegistry;
+
+public class Flowers {
+
+	private static final int HERB_MAX_COUNT = 3;
+	private static final int TINY_MAX_COUNT = 8;
+	private static final float TINY_SIZE = 0.5f;
+
+	public enum FlowerVariant {
+
+		FLAT("Flat"),
+		TINY("Tiny"),
+		HERB("Herb");
+
+		private final String name;
+
+		private FlowerVariant(String name) {
+			this.name = name;
+		}
+
+		public String getName() {
+			return name;
+		}
+
+	}
+
+	public static class Flower {
+
+		private final String name;
+
+		/**
+		 * 1 disables spawning, 0 spawns everywhere
+		 */
+		private final float rarity;
+
+		private final FlowerVariant[] requestedVariants;
+		private final Map<FlowerVariant, TileData> tiles = new HashMap<>();
+
+		public Flower(String name, float rarity, FlowerVariant... variants) {
+			Objects.requireNonNull(name, "name");
+			Objects.requireNonNull(variants, "variants");
+
+			this.name = name;
+			this.rarity = rarity;
+			this.requestedVariants = variants;
+		}
+
+		public String getName() {
+			return name;
+		}
+		
+		public float getRarity() {
+			return rarity;
+		}
+
+		public TileData getTile(FlowerVariant variant) {
+			return tiles.get(variant);
+		}
+
+		public Collection<TileData> getTiles() {
+			return tiles.values();
+		}
+
+		private void register() {
+			for (FlowerVariant variant : requestedVariants) {
+
+				String fullName = "Flower" + name + variant.getName();
+				String id = "Test:" + fullName;
+
+				TileData tileData = new TileData(id);
+				tiles.put(variant, tileData);
+				TileDataRegistry.getInstance().register(tileData);
+
+				Texture texture = TileRenderRegistry.getTileTexture(fullName);
+
+				TileLogicRegistry logic = TileLogicRegistry.getInstance();
+				TileRenderRegistry render = TileRenderRegistry.getInstance();
+
+				switch (variant) {
+				case HERB:
+					logic.register(new HangingTileLogic(id));
+					render.register(new TileRenderHerb(id, texture, HERB_MAX_COUNT));
+					break;
+				case TINY:
+					logic.register(new HangingTileLogic(id));
+					render.register(new TileRenderTinyFlower(id, texture, TINY_MAX_COUNT, TINY_SIZE));
+					break;
+				case FLAT:
+				default:
+					logic.register(new TestTileLogicGrass(id));
+					render.register(new TileRenderTransparentSurface(id, texture));
+					break;
+				}
+
+			}
+		}
+
+	}
+
+	private final Map<String, Flower> flowersByName = Collections.synchronizedMap(new HashMap<>());
+
+	public Flower create(String name, float rarity, FlowerVariant... variants) {
+		Flower flower = new Flower(name, rarity, variants);
+		flowersByName.put(name, flower);
+		return flower;
+	}
+
+	public void registerAllFlowers() {
+		getFlowers().forEach(Flower::register);
+	}
+
+	public Collection<Flower> getFlowers() {
+		return flowersByName.values();
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/LayerAbout.java

@@ -18,9 +18,11 @@
  
 package ru.windcorp.progressia.test;
 
+import ru.windcorp.progressia.Progressia;
 import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.font.Font;
 import ru.windcorp.progressia.client.graphics.font.Typeface;
+import ru.windcorp.progressia.client.graphics.gui.ColorScheme;
 import ru.windcorp.progressia.client.graphics.gui.GUILayer;
 import ru.windcorp.progressia.client.graphics.gui.Label;
 import ru.windcorp.progressia.client.graphics.gui.Group;
@@ -36,7 +38,7 @@ public class LayerAbout extends GUILayer {
 		Group group = new Group("ControlDisplays", new LayoutVertical(5));
 
 		Font font = new Font().withColor(Colors.WHITE).deriveOutlined().withAlign(Typeface.ALIGN_RIGHT);
-		Font aboutFont = font.withColor(0xFF37A3E6).deriveBold();
+		Font aboutFont = font.withColor(ColorScheme.get("Core:Accent")).deriveBold();
 
 		group.addChild(
 			new Label(
@@ -50,7 +52,7 @@ public class LayerAbout extends GUILayer {
 			new Label(
 				"Version",
 				font,
-				new MutableStringLocalized("LayerAbout.Version").format("pre-alpha 3")
+				new MutableStringLocalized("LayerAbout.Version").format(Progressia.getFullerVersion())
 			)
 		);
 

src/main/java/ru/windcorp/progressia/test/LayerButtonTest.java

@@ -20,11 +20,11 @@ package ru.windcorp.progressia.test;
 import java.util.Collection;
 
 import ru.windcorp.progressia.client.ClientState;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.GUI;
 import ru.windcorp.progressia.client.graphics.font.Font;
 import ru.windcorp.progressia.client.graphics.gui.Button;
 import ru.windcorp.progressia.client.graphics.gui.Checkbox;
+import ru.windcorp.progressia.client.graphics.gui.ColorScheme;
 import ru.windcorp.progressia.client.graphics.gui.Label;
 import ru.windcorp.progressia.client.graphics.gui.RadioButton;
 import ru.windcorp.progressia.client.graphics.gui.RadioButtonGroup;
@@ -33,6 +33,7 @@ import ru.windcorp.progressia.client.localization.MutableStringLocalized;
 import ru.windcorp.progressia.server.Player;
 import ru.windcorp.progressia.server.Server;
 import ru.windcorp.progressia.server.ServerState;
+import ru.windcorp.progressia.test.controls.TestPlayerControls;
 
 public class LayerButtonTest extends MenuLayer {
 
@@ -64,7 +65,7 @@ public class LayerButtonTest extends MenuLayer {
 
 		getContent().getChild(getContent().getChildren().size() - 1).setEnabled(false);
 
-		getContent().addChild(new Label("Hint", new Font().withColor(Colors.LIGHT_GRAY), "This is a MenuLayer"));
+		getContent().addChild(new Label("Hint", new Font().withColor(ColorScheme.get("Core:Border")), "This is a MenuLayer"));
 
 		getContent().addChild(new Button("Continue", "Continue").addAction(b -> {
 			getCloseAction().run();

src/main/java/ru/windcorp/progressia/test/LayerDebug.java

@@ -0,0 +1,261 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package ru.windcorp.progressia.test;
+
+import glm.vec._3.Vec3;
+import ru.windcorp.progressia.client.Client;
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.graphics.Colors;
+import ru.windcorp.progressia.client.graphics.backend.GraphicsBackend;
+import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
+import ru.windcorp.progressia.client.graphics.font.Font;
+import ru.windcorp.progressia.client.graphics.gui.DynamicLabel;
+import ru.windcorp.progressia.client.graphics.gui.GUILayer;
+import ru.windcorp.progressia.client.graphics.gui.Label;
+import ru.windcorp.progressia.client.graphics.gui.Group;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutAlign;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutVertical;
+import ru.windcorp.progressia.client.localization.Localizer;
+import ru.windcorp.progressia.client.localization.MutableString;
+import ru.windcorp.progressia.client.localization.MutableStringLocalized;
+import ru.windcorp.progressia.client.world.WorldRender;
+import ru.windcorp.progressia.common.Units;
+import ru.windcorp.progressia.common.util.dynstr.DynamicStrings;
+import ru.windcorp.progressia.server.Server;
+import ru.windcorp.progressia.server.ServerState;
+import ru.windcorp.progressia.test.controls.TestPlayerControls;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Supplier;
+
+public class LayerDebug extends GUILayer {
+	
+	private final List<Runnable> updateTriggers = new ArrayList<>();
+
+	public LayerDebug() {
+		super("LayerDebug", new LayoutAlign(0, 1, 5));
+		getRoot().addChild(new Group("Displays", new LayoutVertical(5)));
+
+		TestPlayerControls tpc = TestPlayerControls.getInstance();
+
+		addDynamicDisplay(
+			"FPSDisplay",
+			DynamicStrings.builder()
+				.addDyn(new MutableStringLocalized("LayerDebug.FPSDisplay"))
+				.addDyn(() -> FPS_RECORD.update(GraphicsInterface.getFPS()), 5, 1)
+				.addDyn(() -> GraphicsBackend.isFullscreen() ? " Fullscreen" : "")
+				.addDyn(() -> GraphicsBackend.isVSyncEnabled() ? " VSync" : "")
+				.buildSupplier()
+		);
+
+		addDynamicDisplay("TPSDisplay", LayerDebug::getTPS);
+
+		addDynamicDisplay(
+			"ChunkStatsDisplay",
+			DynamicStrings.builder()
+				.addDyn(new MutableStringLocalized("LayerDebug.ChunkStatsDisplay"))
+				.addDyn(() -> {
+					if (ClientState.getInstance() == null) {
+						return -1;
+					} else {
+						WorldRender world = ClientState.getInstance().getWorld();
+						return world.getChunks().size() - world.getPendingChunkUpdates();
+					}
+				}, 4)
+				.add('/')
+				.addDyn(() -> {
+					if (ClientState.getInstance() == null) {
+						return -1;
+					} else {
+						return ClientState.getInstance().getWorld().getPendingChunkUpdates();
+					}
+				}, 4)
+				.add('/')
+				.addDyn(() -> {
+					if (ServerState.getInstance() == null) {
+						return -1;
+					} else {
+						return ServerState.getInstance().getWorld().getChunks().size();
+					}
+				}, 4)
+				.buildSupplier()
+		);
+
+		addDynamicDisplay("PosDisplay", LayerDebug::getPos);
+
+		addDisplay("SelectedBlockDisplay", () -> tpc.isBlockSelected() ? ">" : " ", () -> tpc.getSelectedBlock().getId());
+		addDisplay("SelectedTileDisplay", () -> tpc.isBlockSelected() ? " " : ">", () -> tpc.getSelectedTile().getId());
+		addDisplay("PlacementModeHint", () -> "\u2B04");
+	}
+	
+	private void addDisplay(String name, Supplier<?>... params) {
+		Font font = new Font().withColor(Colors.WHITE).deriveOutlined();
+		Label component = new Label(name, font, tmp_dynFormat("LayerDebug." + name, params));
+		getRoot().getChild(0).addChild(component);
+		
+		for (Supplier<?> param : params) {
+			if (param == null) {
+				continue;
+			}
+			
+			updateTriggers.add(new Runnable() {
+				
+				private Object displayedValue;
+				
+				@Override
+				public void run() {
+					Object newValue = param.get();
+					if (!Objects.equals(newValue, displayedValue)) {
+						component.update();
+					}
+					displayedValue = newValue;
+				}
+				
+			});
+		}
+	}
+	
+	private void addDynamicDisplay(String name, Supplier<CharSequence> contents) {
+		Font font = new Font().withColor(Colors.WHITE).deriveOutlined();
+		DynamicLabel component = new DynamicLabel(name, font, contents, 128);
+		getRoot().getChild(0).addChild(component);
+	}
+	
+	@Override
+	protected void doRender() {
+		updateTriggers.forEach(Runnable::run);
+		super.doRender();
+	}
+
+	private static class Averager {
+
+		private static final int DISPLAY_INERTIA = 32;
+		private static final double UPDATE_INTERVAL = Units.get(50.0, "ms");
+
+		private final double[] values = new double[DISPLAY_INERTIA];
+		private int size;
+		private int head;
+
+		private long lastUpdate;
+
+		public void add(double value) {
+			if (size == values.length) {
+				values[head] = value;
+				head++;
+				if (head == values.length)
+					head = 0;
+			} else {
+				values[size] = value;
+				size++;
+			}
+		}
+
+		public double average() {
+			double product = 1;
+
+			if (size == values.length) {
+				for (double d : values)
+					product *= d;
+			} else {
+				for (int i = 0; i < size; ++i)
+					product *= values[i];
+			}
+
+			return Math.pow(product, 1.0 / size);
+		}
+
+		public double update(double value) {
+			long now = (long) (GraphicsInterface.getTime() / UPDATE_INTERVAL);
+			if (lastUpdate != now) {
+				lastUpdate = now;
+				add(value);
+			}
+
+			return average();
+		}
+
+	}
+
+	private static final String[] CLOCK_CHARS = "\u2591\u2598\u259d\u2580\u2596\u258c\u259e\u259b\u2597\u259a\u2590\u259c\u2584\u2599\u259f\u2588"
+		.chars().mapToObj(c -> ((char) c) + "").toArray(String[]::new);
+
+	private static String getTPSClockChar() {
+		return CLOCK_CHARS[(int) (ServerState.getInstance().getUptimeTicks() % CLOCK_CHARS.length)];
+	}
+
+	private static final Averager FPS_RECORD = new Averager();
+	private static final Averager TPS_RECORD = new Averager();
+
+	private static final Supplier<CharSequence> TPS_STRING = DynamicStrings.builder()
+		.addDyn(new MutableStringLocalized("LayerDebug.TPSDisplay"))
+		.addDyn(() -> TPS_RECORD.update(ServerState.getInstance().getTPS()), 5, 1)
+		.add(' ')
+		.addDyn(LayerDebug::getTPSClockChar)
+		.buildSupplier();
+
+	private static final Supplier<CharSequence> POS_STRING = DynamicStrings.builder()
+		.addDyn(new MutableStringLocalized("LayerDebug.PosDisplay"))
+		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().x, 7, 1)
+		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().y, 7, 1)
+		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().z, 7, 1)
+		.buildSupplier();
+
+	private static CharSequence getTPS() {
+		Server server = ServerState.getInstance();
+		if (server == null)
+			return Localizer.getInstance().getValue("LayerDebug.TPSDisplay.NA");
+
+		return TPS_STRING.get();
+	}
+
+	private static CharSequence getPos() {
+		Client client = ClientState.getInstance();
+		if (client == null)
+			return Localizer.getInstance().getValue("LayerDebug.PosDisplay.NA.Client");
+
+		Vec3 pos = client.getCamera().getLastAnchorPosition();
+		if (Float.isNaN(pos.x)) {
+			return Localizer.getInstance().getValue("LayerDebug.PosDisplay.NA.Entity");
+		} else {
+			return POS_STRING.get();
+		}
+	}
+
+	private static MutableString tmp_dynFormat(String formatKey, Supplier<?>... suppliers) {
+		return new MutableStringLocalized(formatKey).apply(s -> {
+			Object[] args = new Object[suppliers.length];
+
+			for (int i = 0; i < suppliers.length; ++i) {
+				Supplier<?> supplier = suppliers[i];
+
+				Object value = supplier != null ? supplier.get() : "null";
+				if (!(value instanceof Number)) {
+					value = Objects.toString(value);
+				}
+
+				args[i] = value;
+			}
+
+			return String.format(s, args);
+		});
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/LayerTestGUI.java

@@ -1,422 +0,0 @@
-/*
- * Progressia
- * Copyright (C)  2020-2021  Wind Corporation and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package ru.windcorp.progressia.test;
-
-import glm.vec._3.Vec3;
-import glm.vec._4.Vec4;
-import ru.windcorp.progressia.client.Client;
-import ru.windcorp.progressia.client.ClientState;
-import ru.windcorp.progressia.client.graphics.Colors;
-import ru.windcorp.progressia.client.graphics.backend.GraphicsBackend;
-import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
-import ru.windcorp.progressia.client.graphics.font.Font;
-import ru.windcorp.progressia.client.graphics.gui.DynamicLabel;
-import ru.windcorp.progressia.client.graphics.gui.GUILayer;
-import ru.windcorp.progressia.client.graphics.gui.Label;
-import ru.windcorp.progressia.client.graphics.gui.Group;
-import ru.windcorp.progressia.client.graphics.gui.layout.LayoutAlign;
-import ru.windcorp.progressia.client.graphics.gui.layout.LayoutVertical;
-import ru.windcorp.progressia.client.localization.Localizer;
-import ru.windcorp.progressia.client.localization.MutableString;
-import ru.windcorp.progressia.client.localization.MutableStringLocalized;
-import ru.windcorp.progressia.client.world.WorldRender;
-import ru.windcorp.progressia.common.Units;
-import ru.windcorp.progressia.common.util.dynstr.DynamicStrings;
-import ru.windcorp.progressia.server.Server;
-import ru.windcorp.progressia.server.ServerState;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Objects;
-import java.util.function.Supplier;
-
-public class LayerTestGUI extends GUILayer {
-
-	public LayerTestGUI() {
-		super("LayerTestGui", new LayoutAlign(0, 1, 5));
-
-		Group group = new Group("ControlDisplays", new LayoutVertical(5));
-
-		Vec4 color = Colors.WHITE;
-		Font font = new Font().withColor(color).deriveOutlined();
-
-		TestPlayerControls tpc = TestPlayerControls.getInstance();
-
-		group.addChild(
-			new Label(
-				"IsFlyingDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.IsFlyingDisplay", tpc::isFlying)
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"IsSprintingDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.IsSprintingDisplay", tpc::isSprinting)
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"CameraModeDisplay",
-				font,
-				tmp_dynFormat(
-					"LayerTestGUI.CameraModeDisplay",
-					ClientState.getInstance().getCamera()::getCurrentModeIndex
-				)
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"LanguageDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.LanguageDisplay", Localizer.getInstance()::getLanguage)
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"FullscreenDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.IsFullscreen", GraphicsBackend::isFullscreen)
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"VSyncDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.IsVSync", GraphicsBackend::isVSyncEnabled)
-			)
-		);
-
-		group.addChild(
-			new DynamicLabel(
-				"FPSDisplay",
-				font,
-				DynamicStrings.builder()
-					.addDyn(new MutableStringLocalized("LayerTestGUI.FPSDisplay"))
-					.addDyn(() -> FPS_RECORD.update(GraphicsInterface.getFPS()), 5, 1)
-					.buildSupplier(),
-				128
-			)
-		);
-
-		group.addChild(
-			new DynamicLabel(
-				"TPSDisplay",
-				font,
-				LayerTestGUI::getTPS,
-				128
-			)
-		);
-
-		group.addChild(
-			new DynamicLabel(
-				"ChunkStatsDisplay",
-				font,
-				DynamicStrings.builder()
-					.addDyn(new MutableStringLocalized("LayerTestGUI.ChunkStatsDisplay"))
-					.addDyn(() -> {
-						if (ClientState.getInstance() == null) {
-							return -1;
-						} else {
-							WorldRender world = ClientState.getInstance().getWorld();
-							return world.getChunks().size() - world.getPendingChunkUpdates();
-						}
-					}, 4)
-					.add('/')
-					.addDyn(() -> {
-						if (ClientState.getInstance() == null) {
-							return -1;
-						} else {
-							return ClientState.getInstance().getWorld().getPendingChunkUpdates();
-						}
-					}, 4)
-					.add('/')
-					.addDyn(() -> {
-						if (ServerState.getInstance() == null) {
-							return -1;
-						} else {
-							return ServerState.getInstance().getWorld().getChunks().size();
-						}
-					}, 4)
-					.buildSupplier(),
-				128
-			)
-		);
-
-		group.addChild(
-			new DynamicLabel(
-				"PosDisplay",
-				font,
-				LayerTestGUI::getPos,
-				128
-			)
-		);
-
-		group.addChild(
-			new Label(
-				"SelectedBlockDisplay",
-				font,
-				tmp_dynFormat(
-					"LayerTestGUI.SelectedBlockDisplay",
-					() -> tpc.isBlockSelected() ? ">" : " ",
-					() -> tpc.getSelectedBlock().getId()
-				)
-			)
-		);
-		group.addChild(
-			new Label(
-				"SelectedTileDisplay",
-				font,
-				tmp_dynFormat(
-					"LayerTestGUI.SelectedTileDisplay",
-					() -> tpc.isBlockSelected() ? " " : ">",
-					() -> tpc.getSelectedTile().getId()
-				)
-			)
-		);
-		group.addChild(
-			new Label(
-				"PlacementModeHint",
-				font,
-				new MutableStringLocalized("LayerTestGUI.PlacementModeHint").format("\u2B04")
-			)
-		);
-
-		getRoot().addChild(group);
-	}
-
-	public Runnable getUpdateCallback() {
-		Collection<Label> labels = new ArrayList<>();
-		getRoot().getChild(0).getChildren().forEach(c -> {
-			if (c instanceof Label) {
-				labels.add((Label) c);
-			}
-		});
-		return () -> labels.forEach(Label::update);
-	}
-
-	private static class Averager {
-
-		private static final int DISPLAY_INERTIA = 32;
-		private static final double UPDATE_INTERVAL = Units.get(50.0, "ms");
-
-		private final double[] values = new double[DISPLAY_INERTIA];
-		private int size;
-		private int head;
-
-		private long lastUpdate;
-
-		public void add(double value) {
-			if (size == values.length) {
-				values[head] = value;
-				head++;
-				if (head == values.length)
-					head = 0;
-			} else {
-				values[size] = value;
-				size++;
-			}
-		}
-
-		public double average() {
-			double product = 1;
-
-			if (size == values.length) {
-				for (double d : values)
-					product *= d;
-			} else {
-				for (int i = 0; i < size; ++i)
-					product *= values[i];
-			}
-
-			return Math.pow(product, 1.0 / size);
-		}
-
-		public double update(double value) {
-			long now = (long) (GraphicsInterface.getTime() / UPDATE_INTERVAL);
-			if (lastUpdate != now) {
-				lastUpdate = now;
-				add(value);
-			}
-
-			return average();
-		}
-
-	}
-
-	private static final String[] CLOCK_CHARS = "\u2591\u2598\u259d\u2580\u2596\u258c\u259e\u259b\u2597\u259a\u2590\u259c\u2584\u2599\u259f\u2588"
-		.chars().mapToObj(c -> ((char) c) + "").toArray(String[]::new);
-
-	private static String getTPSClockChar() {
-		return CLOCK_CHARS[(int) (ServerState.getInstance().getUptimeTicks() % CLOCK_CHARS.length)];
-	}
-
-	private static final Averager FPS_RECORD = new Averager();
-	private static final Averager TPS_RECORD = new Averager();
-
-	private static final Supplier<CharSequence> TPS_STRING = DynamicStrings.builder()
-		.addDyn(new MutableStringLocalized("LayerTestGUI.TPSDisplay"))
-		.addDyn(() -> TPS_RECORD.update(ServerState.getInstance().getTPS()), 5, 1)
-		.add(' ')
-		.addDyn(LayerTestGUI::getTPSClockChar)
-		.buildSupplier();
-
-	private static final Supplier<CharSequence> POS_STRING = DynamicStrings.builder()
-		.addDyn(new MutableStringLocalized("LayerTestGUI.PosDisplay"))
-		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().x, 7, 1)
-		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().y, 7, 1)
-		.addDyn(() -> ClientState.getInstance().getCamera().getLastAnchorPosition().z, 7, 1)
-		.buildSupplier();
-
-	private static CharSequence getTPS() {
-		Server server = ServerState.getInstance();
-		if (server == null)
-			return Localizer.getInstance().getValue("LayerTestGUI.TPSDisplay.NA");
-
-		return TPS_STRING.get();
-	}
-
-	private static CharSequence getPos() {
-		Client client = ClientState.getInstance();
-		if (client == null)
-			return Localizer.getInstance().getValue("LayerTestGUI.PosDisplay.NA.Client");
-
-		Vec3 pos = client.getCamera().getLastAnchorPosition();
-		if (Float.isNaN(pos.x)) {
-			return Localizer.getInstance().getValue("LayerTestGUI.PosDisplay.NA.Entity");
-		} else {
-			return POS_STRING.get();
-		}
-	}
-
-	private static MutableString tmp_dynFormat(String formatKey, Supplier<?>... suppliers) {
-		return new MutableStringLocalized(formatKey).apply(s -> {
-			Object[] args = new Object[suppliers.length];
-
-			for (int i = 0; i < suppliers.length; ++i) {
-				Supplier<?> supplier = suppliers[i];
-
-				Object value = supplier != null ? supplier.get() : "null";
-				if (!(value instanceof Number)) {
-					value = Objects.toString(value);
-				}
-
-				args[i] = value;
-			}
-
-			return String.format(s, args);
-		});
-	}
-
-//	private static class DebugComponent extends Component {
-//		private final int color;
-//		
-//		public DebugComponent(String name, Vec2i size, int color) {
-//			super(name);
-//			this.color = color;
-//			
-//			setPreferredSize(size);
-//			
-//			addListener(new Object() {
-//				@Subscribe
-//				public void onHoverChanged(HoverEvent e) {
-//					requestReassembly();
-//				}
-//			});
-//			
-//			addListener(KeyEvent.class, this::onClicked);
-//		}
-//		
-//		private boolean onClicked(KeyEvent event) {
-//			if (!event.isMouse()) {
-//				return false;
-//			} else if (event.isPress() && event.isLeftMouseButton()) {
-//				System.out.println("You pressed a Component!");
-//			}
-//			return true;
-//		}
-//		
-//		@Override
-//		protected void assembleSelf(RenderTarget target) {
-//			target.fill(getX(), getY(), getWidth(), getHeight(), Colors.BLACK);
-//			
-//			target.fill(
-//					getX() + 2, getY() + 2,
-//					getWidth() - 4, getHeight() - 4,
-//					isHovered() ? Colors.DEBUG_YELLOW : color
-//			);
-//		}
-//	}
-//
-//	public LayerTestGUI() {
-//		super("LayerTestGui", new LayoutAlign(1, 0.75, 5));
-//		
-//		Panel panel = new Panel("Alex", new LayoutVertical(5));
-//		
-//		panel.addChild(new DebugComponent("Bravo", new Vec2i(200, 100), 0x44FF44));
-//		
-//		Component charlie = new DebugComponent("Charlie", null, 0x222222);
-//		charlie.setLayout(new LayoutVertical(5));
-//
-//		//Debug
-//		Localizer.getInstance().setLanguage("ru-RU");
-//		MutableString epsilon = new MutableStringLocalized("Epsilon")
-//				.addListener(() -> ((Label)charlie.getChild(0)).update()).format(34, "thirty-four");
-//		// These two are swapped in code due to a bug in layouts, fixing ATM
-//		charlie.addChild(
-//				new Label(
-//						"Delta",
-//						new Font().withColor(0xCCBB44).deriveShadow().deriveBold(),
-//						"Пре-альфа!"
-//				)
-//		);
-//		charlie.addChild(
-//				new Label(
-//						"Epsilon",
-//						new Font().withColor(0x4444BB).deriveItalic(),
-//						() -> epsilon.get().concat("\u269b")
-//				)
-//		);
-//		panel.addChild(charlie);
-//
-//
-//		charlie.addListener(KeyEvent.class, e -> {
-//			if(e.isPress() && e.getKey() == GLFW.GLFW_KEY_L) {
-//				Localizer localizer = Localizer.getInstance();
-//				if (localizer.getLanguage().equals("ru-RU")) {
-//					localizer.setLanguage("en-US");
-//				} else {
-//					localizer.setLanguage("ru-RU");
-//				}
-//				return true;
-//			} return false;
-//		});
-//		charlie.setFocusable(true);
-//		charlie.takeFocus();
-//
-//		getRoot().addChild(panel);
-//	}
-
-}

src/main/java/ru/windcorp/progressia/test/LayerTestText.java

@@ -1,11 +1,13 @@
 package ru.windcorp.progressia.test;
 
 import java.util.function.Consumer;
-import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.font.Font;
+import ru.windcorp.progressia.client.graphics.gui.ColorScheme;
 import ru.windcorp.progressia.client.graphics.gui.GUILayer;
 import ru.windcorp.progressia.client.graphics.gui.Label;
+import ru.windcorp.progressia.client.graphics.gui.Panel;
 import ru.windcorp.progressia.client.graphics.gui.layout.LayoutAlign;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutFill;
 import ru.windcorp.progressia.client.localization.MutableString;
 
 public class LayerTestText extends GUILayer {
@@ -13,11 +15,13 @@ public class LayerTestText extends GUILayer {
 	private final Consumer<LayerTestText> remover;
 	
 	public LayerTestText(String name, MutableString value, Consumer<LayerTestText> remover) {
-		super(name, new LayoutAlign(15));
+		super(name, new LayoutFill());
 		this.remover = remover;
 
-		Font titleFont = new Font().deriveBold().withColor(Colors.BLACK).withAlign(0.5f);
-		getRoot().addChild(new Label(name + ".Text", titleFont, value));
+		Panel panel = new Panel(name + ".Background", new LayoutAlign(15), ColorScheme.get("Core:Background"), null);
+		Font titleFont = new Font().deriveBold().withColor(ColorScheme.get("Core:Text")).withAlign(0.5f);
+		panel.addChild(new Label(name + ".Text", titleFont, value));
+		getRoot().addChild(panel);
 	}
 	
 	@Override

src/main/java/ru/windcorp/progressia/test/LayerTestUI.java

@@ -27,8 +27,8 @@ import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
 import ru.windcorp.progressia.client.graphics.flat.AssembledFlatLayer;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
 import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
 
 public class LayerTestUI extends AssembledFlatLayer {
 
@@ -91,7 +91,7 @@ public class LayerTestUI extends AssembledFlatLayer {
 	}
 
 	@Override
-	protected void handleInput(Input input) {
+	public void handleInput(InputEvent event) {
 		// Do nothing
 	}
 

src/main/java/ru/windcorp/progressia/test/TestContent.java

@@ -28,15 +28,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 import java.util.function.Consumer;
-import org.lwjgl.glfw.GLFW;
 
-import glm.vec._3.i.Vec3i;
-import ru.windcorp.progressia.client.ClientState;
-import ru.windcorp.progressia.client.audio.Sound;
-import ru.windcorp.progressia.client.comms.controls.*;
-import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
-import ru.windcorp.progressia.client.graphics.world.Selection;
 import ru.windcorp.progressia.client.world.block.*;
 import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizerRegistry;
 import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizerSimple;
@@ -45,25 +37,22 @@ import ru.windcorp.progressia.client.world.entity.*;
 import ru.windcorp.progressia.client.world.tile.*;
 import ru.windcorp.progressia.common.collision.AABB;
 import ru.windcorp.progressia.common.collision.CollisionModel;
-import ru.windcorp.progressia.common.comms.controls.*;
 import ru.windcorp.progressia.common.state.StatefulObjectRegistry.Factory;
 import ru.windcorp.progressia.common.world.GravityModelRegistry;
 import ru.windcorp.progressia.common.world.block.*;
 import ru.windcorp.progressia.common.world.entity.*;
 import ru.windcorp.progressia.common.world.io.ChunkIO;
-import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.tile.*;
-import ru.windcorp.progressia.server.Server;
-import ru.windcorp.progressia.server.comms.controls.*;
 import ru.windcorp.progressia.server.world.block.*;
-import ru.windcorp.progressia.server.world.context.ServerBlockContext;
-import ru.windcorp.progressia.server.world.context.ServerTileContext;
-import ru.windcorp.progressia.server.world.context.ServerTileStackContext;
 import ru.windcorp.progressia.server.world.entity.*;
 import ru.windcorp.progressia.server.world.generation.planet.PlanetGravityModel;
 import ru.windcorp.progressia.server.world.tile.*;
+import ru.windcorp.progressia.test.Flowers.FlowerVariant;
 import ru.windcorp.progressia.test.Rocks.RockType;
+import ru.windcorp.progressia.test.controls.TestPlayerControls;
 import ru.windcorp.progressia.test.gen.TestGravityModel;
+import ru.windcorp.progressia.test.trees.BlockRenderLeavesHazel;
+import ru.windcorp.progressia.test.trees.BlockRenderLeavesPine;
 
 public class TestContent {
 
@@ -75,6 +64,7 @@ public class TestContent {
 	public static final List<TileData> PLACEABLE_TILES = new ArrayList<>();
 
 	public static final Rocks ROCKS = new Rocks();
+	public static final Flowers FLOWERS = new Flowers();
 
 	public static void registerContent() {
 		registerWorldContent();
@@ -129,7 +119,7 @@ public class TestContent {
 		register(new BlockLogic("Test:Log"));
 		
 		register(new BlockData("Test:TemporaryLeaves"));
-		register(new BlockRenderTransparentCube("Test:TemporaryLeaves", getBlockTexture("TemporaryLeaves")));
+		register(new BlockRenderLeavesHazel("Test:TemporaryLeaves", getBlockTexture("LeavesHazel")));
 		// Sic, using Glass logic for leaves because  Test
 		register(new TestBlockLogicGlass("Test:TemporaryLeaves")); 
 		
@@ -141,6 +131,11 @@ public class TestContent {
 		register(new TestBlockRenderTux("Test:Tux"));
 		register(new BlockLogic("Test:Tux"));
 		
+		register(new BlockData("Test:LeavesPine"));
+		register(new BlockRenderLeavesPine("Test:LeavesPine", getBlockTexture("LeavesPine")));
+		// Sic, using Glass logic for leaves because  Test
+		register(new TestBlockLogicGlass("Test:LeavesPine"));
+
 		BlockDataRegistry.getInstance().values().forEach(PLACEABLE_BLOCKS::add);
 		PLACEABLE_BLOCKS.removeIf(b -> placeableBlacklist.contains(b.getId()));
 		PLACEABLE_BLOCKS.sort(Comparator.comparing(BlockData::getId));
@@ -184,14 +179,7 @@ public class TestContent {
 			register(new TestTileLogicGrass(id));
 		});
 		
-		Arrays.asList(
-			"Yellow",
-			"White",
-			"Purple",
-			"Blue"
-		).forEach(color -> {
-			registerSimplestTransparentTile(color + "Flowers");
-		});
+		registerFlowers();
 
 		registerSimplestTransparentTile("Stones");
 
@@ -216,21 +204,12 @@ public class TestContent {
 		registerSimplestOpaqueTile("TilesLarge");
 		registerSimplestOpaqueTile("TilesSmall");
 
-		registerHerb("LowGrass", 6);
-		registerHerb("MediumGrass", 6);
-		registerHerb("TallGrass", 6);
-
-		Arrays.asList(
-			"Dandelion",
-			"Lavander"
-		).forEach(variant -> {
-			String fullName = "Tiny" + variant + "Flowers";
-			String id = "Test:" + fullName;
-
-			register(new TileData(id));
-			register(new TileRenderTinyFlower(id, getTileTexture(fullName), 8, 0.5f));
-			register(new HangingTileLogic(id));
-		});
+		registerHerb("GrassMeadow0", 6);
+		registerHerb("GrassMeadow1", 6);
+		registerHerb("GrassMeadow2", 6);
+		registerHerb("GrassBluegrass0", 6);
+		registerHerb("GrassBluegrass1", 6);
+		registerHerb("GrassBluegrass2", 6);
 
 		registerHerb("Bush", 1);
 		registerHerb("Fern", 3);
@@ -240,6 +219,21 @@ public class TestContent {
 		PLACEABLE_TILES.sort(Comparator.comparing(TileData::getId));
 	}
 
+	private static void registerFlowers() {
+		
+		final float common = 0.8f;
+		
+		FLOWERS.create("Clover", common, FlowerVariant.HERB, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("Dandelion", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("Geranium", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("Knapweed", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("YellowPea", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("Daisy", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		FLOWERS.create("Lavander", common, FlowerVariant.TINY, FlowerVariant.FLAT);
+		
+		FLOWERS.registerAllFlowers();
+	}
+
 	private static void registerSimplestBlock(String name) {
 		String id = "Test:" + name;
 		register(new BlockData(id));
@@ -280,55 +274,9 @@ public class TestContent {
 	}
 
 	private static void regsiterControls() {
-		ControlDataRegistry data = ControlDataRegistry.getInstance();
-		ControlTriggerRegistry triggers = ControlTriggerRegistry.getInstance();
-		ControlLogicRegistry logic = ControlLogicRegistry.getInstance();
+		TestPlayerControls.getInstance().registerControls();
 		
-		data.register("Test:BreakBlock", ControlBreakBlockData::new);
-		triggers.register(
-			ControlTriggers.of(
-				"Test:BreakBlock",
-				KeyEvent.class,
-				TestContent::onBlockBreakTrigger,
-				KeyMatcher.of(GLFW.GLFW_MOUSE_BUTTON_LEFT).matcher(),
-				i -> isAnythingSelected()
-			)
-		);
-		logic.register(ControlLogic.of("Test:BreakBlock", TestContent::onBlockBreakReceived));
 		
-		data.register("Test:PlaceBlock", ControlPlaceBlockData::new);
-		triggers.register(
-			ControlTriggers.of(
-				"Test:PlaceBlock",
-				KeyEvent.class,
-				TestContent::onBlockPlaceTrigger,
-				KeyMatcher.of(GLFW.GLFW_MOUSE_BUTTON_RIGHT).matcher(),
-				i -> isAnythingSelected() && TestPlayerControls.getInstance().isBlockSelected()
-			)
-		);
-
-		logic.register(ControlLogic.of("Test:PlaceBlock", TestContent::onBlockPlaceReceived));
-
-		data.register("Test:PlaceTile", ControlPlaceTileData::new);
-		triggers.register(
-			ControlTriggers.of(
-				"Test:PlaceTile",
-				KeyEvent.class,
-				TestContent::onTilePlaceTrigger,
-				KeyMatcher.of(GLFW.GLFW_MOUSE_BUTTON_RIGHT).matcher(),
-				i -> isAnythingSelected() && !TestPlayerControls.getInstance().isBlockSelected()
-			)
-		);
-		logic.register(ControlLogic.of("Test:PlaceTile", TestContent::onTilePlaceReceived));
-
-		triggers.register(
-			ControlTriggers.localOf(
-				"Test:StartNextMusic",
-				KeyEvent.class,
-				TestMusicPlayer::startNextNow,
-				KeyMatcher.of(GLFW.GLFW_KEY_M).matcher()
-			)
-		);
 	}
 
 	private static void register(BlockData x) {
@@ -384,95 +332,6 @@ public class TestContent {
 		EntityLogicRegistry.getInstance().register(x);
 	}
 
-	private static Selection getSelection() {
-		ru.windcorp.progressia.client.Client client = ClientState.getInstance();
-		if (client == null || !client.isReady())
-			return null;
-		
-		return client.getLocalPlayer().getSelection();
-	}
-
-	private static boolean isAnythingSelected() {
-		ru.windcorp.progressia.client.Client client = ClientState.getInstance();
-		if (client == null || !client.isReady())
-			return false;
-
-		return client.getLocalPlayer().getSelection().exists();
-	}
-
-	private static void onBlockBreakTrigger(ControlData control) {
-		((ControlBreakBlockData) control).setBlockInWorld(getSelection().getBlock());
-		Sound sfx = new Sound("Progressia:BlockDestroy");
-		sfx.setPosition(getSelection().getPoint());
-		sfx.setPitch((float) (Math.random() + 1 * 0.5));
-		sfx.play(false);
-	}
-
-	private static void onBlockBreakReceived(
-		Server server,
-		PacketControl packet,
-		ru.windcorp.progressia.server.comms.Client client
-	) {
-		Vec3i blockInWorld = ((ControlBreakBlockData) packet.getControl()).getBlockInWorld();
-		server.createAbsoluteContext().setBlock(blockInWorld, BlockDataRegistry.getInstance().get("Test:Air"));
-	}
-
-	private static void onBlockPlaceTrigger(ControlData control) {
-		((ControlPlaceBlockData) control).set(
-			TestPlayerControls.getInstance().getSelectedBlock(),
-			getSelection().getBlock().add_(getSelection().getSurface().getVector())
-		);
-	}
-
-	private static void onBlockPlaceReceived(
-		Server server,
-		PacketControl packet,
-		ru.windcorp.progressia.server.comms.Client client
-	) {
-		ControlPlaceBlockData controlData = ((ControlPlaceBlockData) packet.getControl());
-		BlockData block = controlData.getBlock();
-		Vec3i blockInWorld = controlData.getBlockInWorld();
-		if (server.getWorld().getData().getChunkByBlock(blockInWorld) == null)
-			return;
-		server.createAbsoluteContext().setBlock(blockInWorld, block);
-	}
-
-	private static void onTilePlaceTrigger(ControlData control) {
-		((ControlPlaceTileData) control).set(
-			TestPlayerControls.getInstance().getSelectedTile(),
-			getSelection().getBlock(),
-			getSelection().getSurface()
-		);
-	}
-
-	private static void onTilePlaceReceived(
-		Server server,
-		PacketControl packet,
-		ru.windcorp.progressia.server.comms.Client client
-	) {
-		ControlPlaceTileData controlData = ((ControlPlaceTileData) packet.getControl());
-		TileData tile = controlData.getTile();
-		Vec3i blockInWorld = controlData.getBlockInWorld();
-		AbsFace face = controlData.getFace();
-
-		if (server.getWorld().getData().getChunkByBlock(blockInWorld) == null) {
-			return;
-		}
-		if (server.getWorld().getData().getTiles(blockInWorld, face).isFull()) {
-			return;
-		}
-
-		ServerBlockContext context = server.createContext(blockInWorld);
-		ServerTileStackContext tsContext = context.push(context.toContext(face));
-		ServerTileContext tileContext = tsContext.push(tsContext.getTileCount());
-
-		TileLogic logic = TileLogicRegistry.getInstance().get(tile.getId());
-		if (!logic.canOccupyFace(tileContext)) {
-			return;
-		}
-		tileContext.addTile(tile);
-	}
-
 	private static void registerMisc() {
 		ChunkIO.registerCodec(new TestChunkCodec());
 

src/main/java/ru/windcorp/progressia/test/TestMusicPlayer.java

@@ -110,6 +110,7 @@ public class TestMusicPlayer implements Runnable {
 				String file = it.next().toString();
 				if (!file.endsWith(".ogg") && !file.endsWith(".oga")) {
 					LogManager.getLogger().warn("Skipping " + file + ": not .ogg nor .oga");
+					continue;
 				}
 				
 				String id = "Progressia:Music" + (i++);

src/main/java/ru/windcorp/progressia/test/TestPlayerControls.java

@@ -1,469 +0,0 @@
-/*
- * Progressia
- * Copyright (C)  2020-2021  Wind Corporation and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
- 
-package ru.windcorp.progressia.test;
-
-import glm.Glm;
-import glm.mat._3.Mat3;
-import glm.mat._4.Mat4;
-import glm.vec._3.Vec3;
-import org.lwjgl.glfw.GLFW;
-import ru.windcorp.progressia.client.ClientState;
-import ru.windcorp.progressia.client.graphics.GUI;
-import ru.windcorp.progressia.client.graphics.backend.GraphicsBackend;
-import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
-import ru.windcorp.progressia.client.graphics.backend.InputTracker;
-import ru.windcorp.progressia.client.graphics.input.CursorMoveEvent;
-import ru.windcorp.progressia.client.graphics.input.InputEvent;
-import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.WheelScrollEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
-import ru.windcorp.progressia.client.graphics.world.LocalPlayer;
-import ru.windcorp.progressia.client.localization.Localizer;
-import ru.windcorp.progressia.common.Units;
-import ru.windcorp.progressia.common.util.Matrices;
-import ru.windcorp.progressia.common.util.VectorUtil;
-import ru.windcorp.progressia.common.util.Vectors;
-import ru.windcorp.progressia.common.world.block.BlockData;
-import ru.windcorp.progressia.common.world.entity.EntityData;
-import ru.windcorp.progressia.common.world.tile.TileData;
-import ru.windcorp.progressia.server.ServerState;
-
-public class TestPlayerControls {
-
-	private static TestPlayerControls instance = new TestPlayerControls();
-
-	public static TestPlayerControls getInstance() {
-		return instance;
-	}
-
-	private static final double MODE_SWITCH_MAX_DELAY = 300 * Units.MILLISECONDS;
-	private static final double MODE_SPRINT_SWITCH_MAX_DELAY = 100 * Units.MILLISECONDS;
-	private static final double MIN_JUMP_DELAY = 300 * Units.MILLISECONDS;
-
-	// Horizontal and vertical max control speed when flying
-	private static final float FLYING_SPEED = Units.get("6 m/s");
-
-	// (0; 1], 1 is instant change, 0 is no control authority
-	private static final float FLYING_CONTROL_AUTHORITY = Units.get("2 1/s");
-
-	// Horizontal max control speed when walking
-	private static final float WALKING_SPEED = Units.get("4 m/s");
-
-	// Horizontal max control speed when sprinting
-	private static final float SPRINTING_SPEED = Units.get("6 m/s");
-
-	// (0; 1], 1 is instant change, 0 is no control authority
-	private static final float WALKING_CONTROL_AUTHORITY = Units.get("15 1/s");
-
-	// Vertical velocity instantly added to player when they jump
-	private static final float JUMP_VELOCITY = 5f * Units.METERS_PER_SECOND;
-
-	private boolean isFlying = true;
-	private boolean isSprinting = false;
-
-	private int movementForward = 0;
-	private int movementRight = 0;
-	private int movementUp = 0;
-
-	private double lastSpacePress = Double.NEGATIVE_INFINITY;
-	private double lastSprintPress = Double.NEGATIVE_INFINITY;
-
-	private int selectedBlock = 0;
-	private int selectedTile = 0;
-	private boolean isBlockSelected = true;
-
-	private LayerTestGUI debugLayer = null;
-	private Runnable updateCallback = null;
-	
-	public static void resetInstance() {
-		instance = new TestPlayerControls();
-	}
-
-	public void applyPlayerControls() {
-		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
-			return;
-		}
-
-		EntityData player = getEntity();
-
-		final float speed, authority;
-
-		if (isFlying) {
-			speed = FLYING_SPEED;
-			authority = FLYING_CONTROL_AUTHORITY;
-		} else {
-			speed = isSprinting ? SPRINTING_SPEED : WALKING_SPEED;
-			authority = WALKING_CONTROL_AUTHORITY;
-		}
-
-		Mat3 movementTransform = getMovementTransform(player, null);
-		Vec3 desiredVelocity = new Vec3(movementForward, movementRight, 0);
-		if (movementForward != 0 && movementRight != 0) {
-			desiredVelocity.normalize();
-		}
-		desiredVelocity.z = movementUp;
-		movementTransform.mul_(desiredVelocity); // bug in jglm, .mul() and .mul_() are
-										         // swapped
-		desiredVelocity.mul(speed);
-
-		Vec3 newVelocity = new Vec3()
-			.set(desiredVelocity)
-			.sub(player.getVelocity())
-			.mul((float) Math.exp(-authority * GraphicsInterface.getFrameLength()))
-			.negate()
-			.add(desiredVelocity);
-
-		if (!isFlying) {
-			Vec3 up = player.getUpVector();
-			Vec3 wantedVertical = VectorUtil.projectOnVector(player.getVelocity(), up, null);
-			VectorUtil.projectOnSurface(newVelocity, up).add(wantedVertical);
-		}
-
-		player.getVelocity().set(newVelocity);
-
-		// THIS IS TERRIBLE TEST
-		EntityData serverEntity = ServerState.getInstance().getWorld().getData()
-			.getEntity(TestContent.PLAYER_ENTITY_ID);
-		if (serverEntity != null) {
-			serverEntity.setPosition(player.getPosition());
-		}
-
-	}
-
-	private Mat3 getMovementTransform(EntityData player, Mat3 mat) {
-		if (mat == null) {
-			mat = new Mat3();
-		}
-		
-		Vec3 f = player.getForwardVector(null);
-		Vec3 u = player.getUpVector();
-		Vec3 s = u.cross_(f);
-		
-		return mat.set(
-			+f.x, +f.y, +f.z,
-			-s.x, -s.y, -s.z,
-			+u.x, +u.y, +u.z
-		);
-	}
-
-	public void handleInput(Input input) {
-		InputEvent event = input.getEvent();
-
-		if (event instanceof KeyEvent) {
-			if (onKeyEvent((KeyEvent) event)) {
-				input.consume();
-			}
-		} else if (event instanceof CursorMoveEvent) {
-			onMouseMoved((CursorMoveEvent) event);
-			input.consume();
-		} else if (event instanceof WheelScrollEvent) {
-			onWheelScroll((WheelScrollEvent) event);
-			input.consume();
-		}
-	}
-
-	private boolean onKeyEvent(KeyEvent event) {
-		if (event.isRepeat())
-			return false;
-		int multiplier = event.isPress() ? 1 : -1;
-		switch (event.getKey()) {
-		case GLFW.GLFW_KEY_W:
-			movementForward += +1 * multiplier;
-			handleSprint(event);
-			break;
-		case GLFW.GLFW_KEY_S:
-			movementForward += -1 * multiplier;
-			break;
-		case GLFW.GLFW_KEY_A:
-			movementRight += -1 * multiplier;
-			break;
-		case GLFW.GLFW_KEY_D:
-			movementRight += +1 * multiplier;
-			break;
-		case GLFW.GLFW_KEY_SPACE:
-			handleSpace(multiplier);
-			break;
-		case GLFW.GLFW_KEY_LEFT_SHIFT:
-			handleShift(multiplier);
-			break;
-		case GLFW.GLFW_KEY_ESCAPE:
-			if (!event.isPress())
-				return false;
-			
-			handleEscape();
-			break;
-
-		case GLFW.GLFW_KEY_F11:
-			if (!event.isPress())
-				return false;
-			GraphicsInterface.makeFullscreen(!GraphicsBackend.isFullscreen());
-			updateGUI();
-			break;
-
-		case GLFW.GLFW_KEY_F12:
-			if (!event.isPress())
-				return false;
-			GraphicsBackend.setVSyncEnabled(!GraphicsBackend.isVSyncEnabled());
-			updateGUI();
-			break;
-
-		case GLFW.GLFW_KEY_F3:
-			if (!event.isPress())
-				return false;
-			handleDebugLayerSwitch();
-			break;
-
-		case GLFW.GLFW_KEY_F5:
-			if (!event.isPress())
-				return false;
-			handleCameraMode();
-			break;
-
-		case GLFW.GLFW_KEY_L:
-			if (!event.isPress())
-				return false;
-			handleLanguageSwitch();
-			break;
-
-		case GLFW.GLFW_MOUSE_BUTTON_3:
-			if (!event.isPress())
-				return false;
-			switchPlacingMode();
-			break;
-
-		default:
-			return false;
-		}
-
-		return true;
-	}
-
-	private void handleSpace(int multiplier) {
-		boolean isPressed = multiplier > 0;
-
-		double timeSinceLastSpacePress = GraphicsInterface.getTime() - lastSpacePress;
-
-		if (isPressed && timeSinceLastSpacePress < MODE_SWITCH_MAX_DELAY) {
-			isSprinting = false;
-			isFlying = !isFlying;
-			updateGUI();
-			movementUp = +1;
-		} else {
-			if (isFlying) {
-				movementUp += +1 * multiplier;
-			} else {
-				if (isPressed && timeSinceLastSpacePress > MIN_JUMP_DELAY) {
-					jump();
-				}
-			}
-		}
-
-		lastSpacePress = GraphicsInterface.getTime();
-	}
-
-	private void handleSprint(KeyEvent event) {
-
-		double timeSinceLastSpacePress = GraphicsInterface.getTime() - lastSprintPress;
-
-		if (event.isPress() && timeSinceLastSpacePress < MODE_SPRINT_SWITCH_MAX_DELAY && !isFlying) {
-			isSprinting = !isSprinting;
-			updateGUI();
-		}
-
-		lastSprintPress = GraphicsInterface.getTime();
-
-		if (isSprinting && event.isRelease()) {
-			isSprinting = false;
-			updateGUI();
-		}
-	}
-
-	private void jump() {
-		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
-			return;
-		}
-
-		Vec3 up = getEntity().getUpVector();
-		
-		getEntity().getVelocity().add(
-			up.x * JUMP_VELOCITY,
-			up.y * JUMP_VELOCITY,
-			up.z * JUMP_VELOCITY
-		);
-	}
-
-	private void handleShift(int multiplier) {
-		if (isFlying) {
-			movementUp += -1 * multiplier;
-		}
-	}
-
-	private void handleEscape() {
-		movementForward = 0;
-		movementRight = 0;
-		movementUp = 0;
-		GUI.addTopLayer(new LayerButtonTest());
-	}
-
-	private void handleDebugLayerSwitch() {
-		if (debugLayer == null) {
-			this.debugLayer = new LayerTestGUI();
-			this.updateCallback = debugLayer.getUpdateCallback();
-		}
-
-		if (GUI.getLayers().contains(debugLayer)) {
-			GUI.removeLayer(debugLayer);
-		} else {
-			GUI.addTopLayer(debugLayer);
-		}
-	}
-
-	private void handleCameraMode() {
-		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
-			return;
-		}
-
-		if (ClientState.getInstance().getCamera().hasAnchor()) {
-			ClientState.getInstance().getCamera().selectNextMode();
-			updateGUI();
-		}
-	}
-
-	private void handleLanguageSwitch() {
-		Localizer localizer = Localizer.getInstance();
-		if (localizer.getLanguage().equals("ru-RU")) {
-			localizer.setLanguage("en-US");
-		} else {
-			localizer.setLanguage("ru-RU");
-		}
-
-		updateGUI();
-	}
-
-	private void onMouseMoved(CursorMoveEvent event) {
-		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
-			return;
-		}
-
-		final double yawScale = -0.002f;
-		final double pitchScale = -yawScale;
-		final double pitchExtremum = Math.PI/2 * 0.95f;
-		
-		double yawChange = event.getChangeX() * yawScale;
-		double pitchChange = event.getChangeY() * pitchScale;
-
-		EntityData player = getEntity();
-		
-		double startPitch = player.getPitch();
-		double endPitch = startPitch + pitchChange;
-		endPitch = Glm.clamp(endPitch, -pitchExtremum, +pitchExtremum);
-		pitchChange = endPitch - startPitch;
-		
-		Mat4 mat = Matrices.grab4();
-		Vec3 lookingAt = Vectors.grab3();		
-		Vec3 rightVector = Vectors.grab3();
-
-		rightVector.set(player.getLookingAt()).cross(player.getUpVector()).normalize();
-		
-		mat.identity()
-			.rotate((float) yawChange, player.getUpVector())
-			.rotate((float) pitchChange, rightVector);
-		
-		VectorUtil.applyMat4(player.getLookingAt(), mat, lookingAt);
-		player.setLookingAt(lookingAt);
-		
-		Vectors.release(rightVector);
-		Vectors.release(lookingAt);
-		Matrices.release(mat);
-	}
-
-	private void onWheelScroll(WheelScrollEvent event) {
-		if (event.hasHorizontalMovement()) {
-			switchPlacingMode();
-		}
-		if (InputTracker.isKeyPressed(GLFW.GLFW_KEY_LEFT_CONTROL)) {
-			switchPlacingMode();
-			return;
-		}
-
-		if (isBlockSelected) {
-			selectedBlock += event.isUp() ? +1 : -1;
-
-			int size = TestContent.PLACEABLE_BLOCKS.size();
-
-			if (selectedBlock < 0) {
-				selectedBlock = size - 1;
-			} else if (selectedBlock >= size) {
-				selectedBlock = 0;
-			}
-		} else {
-			selectedTile += event.isUp() ? +1 : -1;
-
-			int size = TestContent.PLACEABLE_TILES.size();
-
-			if (selectedTile < 0) {
-				selectedTile = size - 1;
-			} else if (selectedTile >= size) {
-				selectedTile = 0;
-			}
-		}
-
-		updateGUI();
-	}
-
-	private void switchPlacingMode() {
-		isBlockSelected = !isBlockSelected;
-		updateGUI();
-	}
-
-	public EntityData getEntity() {
-		return getPlayer().getEntity();
-	}
-
-	public LocalPlayer getPlayer() {
-		return ClientState.getInstance().getLocalPlayer();
-	}
-
-	private void updateGUI() {
-		if (this.updateCallback != null) {
-			this.updateCallback.run();
-		}
-	}
-
-	public boolean isFlying() {
-		return isFlying;
-	}
-
-	public boolean isSprinting() {
-		return isSprinting;
-	}
-
-	public BlockData getSelectedBlock() {
-		return TestContent.PLACEABLE_BLOCKS.get(selectedBlock);
-	}
-
-	public TileData getSelectedTile() {
-		return TestContent.PLACEABLE_TILES.get(selectedTile);
-	}
-
-	public boolean isBlockSelected() {
-		return isBlockSelected;
-	}
-
-}

src/main/java/ru/windcorp/progressia/test/controls/CameraControls.java

@@ -0,0 +1,130 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.controls;
+
+import glm.Glm;
+import glm.mat._4.Mat4;
+import glm.vec._3.Vec3;
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggerRegistry;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggers;
+import ru.windcorp.progressia.client.graphics.input.CursorMoveEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.world.Camera;
+import ru.windcorp.progressia.client.graphics.world.EntityAnchor;
+import ru.windcorp.progressia.common.util.Matrices;
+import ru.windcorp.progressia.common.util.VectorUtil;
+import ru.windcorp.progressia.common.util.Vectors;
+import ru.windcorp.progressia.common.world.entity.EntityData;
+
+public class CameraControls {
+
+	{
+		reset();
+	}
+
+	public void reset() {
+		// No instance fields; futureproofing
+	}
+
+	public void registerControls() {
+		ControlTriggerRegistry triggers = ControlTriggerRegistry.getInstance();
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:TurnCameraWithCursor",
+				CursorMoveEvent.class,
+				this::turnCameraWithCursor
+			)
+		);
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:SwitchCameraMode",
+				KeyEvent.class,
+				this::switchCameraMode,
+				new KeyMatcher("F5")::matches
+			)
+		);
+
+		NoclipCamera.register();
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:ToggleNoclip",
+				KeyEvent.class,
+				NoclipCamera::toggleNoclip,
+				new KeyMatcher("V")::matches
+			)
+		);
+	}
+
+	private void turnCameraWithCursor(CursorMoveEvent event) {
+		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
+			return;
+		}
+
+		Camera.Anchor cameraAnchor = ClientState.getInstance().getCamera().getAnchor();
+		if (!(cameraAnchor instanceof EntityAnchor)) {
+			return;
+		}
+
+		EntityData player = ((EntityAnchor) cameraAnchor).getEntity();
+
+		final double yawScale = -0.002f;
+		final double pitchScale = -yawScale;
+		final double pitchExtremum = Math.PI / 2 * 0.995f;
+
+		double yawChange = event.getChangeX() * yawScale;
+		double pitchChange = event.getChangeY() * pitchScale;
+
+		double startPitch = player.getPitch();
+		double endPitch = startPitch + pitchChange;
+		endPitch = Glm.clamp(endPitch, -pitchExtremum, +pitchExtremum);
+		pitchChange = endPitch - startPitch;
+
+		Mat4 mat = Matrices.grab4();
+		Vec3 lookingAt = Vectors.grab3();
+		Vec3 rightVector = Vectors.grab3();
+
+		rightVector.set(player.getLookingAt()).cross(player.getUpVector()).normalize();
+
+		mat.identity()
+			.rotate((float) yawChange, player.getUpVector())
+			.rotate((float) pitchChange, rightVector);
+
+		VectorUtil.applyMat4(player.getLookingAt(), mat, lookingAt);
+		player.setLookingAt(lookingAt);
+
+		Vectors.release(rightVector);
+		Vectors.release(lookingAt);
+		Matrices.release(mat);
+	}
+
+	private void switchCameraMode() {
+		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
+			return;
+		}
+
+		if (ClientState.getInstance().getCamera().hasAnchor()) {
+			ClientState.getInstance().getCamera().selectNextMode();
+		}
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/controls/ControlBreakBlockData.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
  
-package ru.windcorp.progressia.test;
+package ru.windcorp.progressia.test.controls;
 
 import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.comms.controls.ControlData;

src/main/java/ru/windcorp/progressia/test/controls/ControlPlaceBlockData.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
  
-package ru.windcorp.progressia.test;
+package ru.windcorp.progressia.test.controls;
 
 import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.comms.controls.ControlData;

src/main/java/ru/windcorp/progressia/test/controls/ControlPlaceTileData.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
  
-package ru.windcorp.progressia.test;
+package ru.windcorp.progressia.test.controls;
 
 import glm.vec._3.i.Vec3i;
 import ru.windcorp.progressia.common.comms.controls.ControlData;

src/main/java/ru/windcorp/progressia/test/controls/InteractionControls.java

@@ -0,0 +1,264 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.controls;
+
+import org.lwjgl.glfw.GLFW;
+
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.audio.Sound;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggerRegistry;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggers;
+import ru.windcorp.progressia.client.graphics.backend.InputTracker;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.input.WheelScrollEvent;
+import ru.windcorp.progressia.client.graphics.world.Selection;
+import ru.windcorp.progressia.common.comms.controls.ControlData;
+import ru.windcorp.progressia.common.comms.controls.ControlDataRegistry;
+import ru.windcorp.progressia.common.comms.controls.PacketControl;
+import ru.windcorp.progressia.common.world.block.BlockData;
+import ru.windcorp.progressia.common.world.block.BlockDataRegistry;
+import ru.windcorp.progressia.common.world.rels.AbsFace;
+import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.server.Server;
+import ru.windcorp.progressia.server.comms.controls.ControlLogic;
+import ru.windcorp.progressia.server.comms.controls.ControlLogicRegistry;
+import ru.windcorp.progressia.server.world.context.ServerBlockContext;
+import ru.windcorp.progressia.server.world.context.ServerTileContext;
+import ru.windcorp.progressia.server.world.context.ServerTileStackContext;
+import ru.windcorp.progressia.server.world.tile.TileLogic;
+import ru.windcorp.progressia.server.world.tile.TileLogicRegistry;
+import ru.windcorp.progressia.test.TestContent;
+
+public class InteractionControls {
+
+	private int selectedBlock;
+	private int selectedTile;
+	private boolean isBlockSelected;
+	
+	{
+		reset();
+	}
+
+	public void reset() {
+		selectedBlock = 0;
+		selectedTile = 0;
+		isBlockSelected = true;
+	}
+
+	public void registerControls() {
+		ControlDataRegistry data = ControlDataRegistry.getInstance();
+		ControlTriggerRegistry triggers = ControlTriggerRegistry.getInstance();
+		ControlLogicRegistry logic = ControlLogicRegistry.getInstance();
+
+		data.register("Test:BreakBlock", ControlBreakBlockData::new);
+		triggers.register(
+			ControlTriggers.of(
+				"Test:BreakBlock",
+				KeyEvent.class,
+				this::onBlockBreakTrigger,
+				KeyMatcher.LMB::matches,
+				i -> isAnythingSelected()
+			)
+		);
+		logic.register(ControlLogic.of("Test:BreakBlock", InteractionControls::onBlockBreakReceived));
+
+		data.register("Test:PlaceBlock", ControlPlaceBlockData::new);
+		triggers.register(
+			ControlTriggers.of(
+				"Test:PlaceBlock",
+				KeyEvent.class,
+				this::onBlockPlaceTrigger,
+				KeyMatcher.RMB::matches,
+				i -> isAnythingSelected() && isBlockSelected()
+			)
+		);
+
+		logic.register(ControlLogic.of("Test:PlaceBlock", InteractionControls::onBlockPlaceReceived));
+
+		data.register("Test:PlaceTile", ControlPlaceTileData::new);
+		triggers.register(
+			ControlTriggers.of(
+				"Test:PlaceTile",
+				KeyEvent.class,
+				this::onTilePlaceTrigger,
+				KeyMatcher.RMB::matches,
+				i -> isAnythingSelected() && !isBlockSelected()
+			)
+		);
+		logic.register(ControlLogic.of("Test:PlaceTile", InteractionControls::onTilePlaceReceived));
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:SwitchPlacingModeMMB",
+				KeyEvent.class,
+				this::switchPlacingMode,
+				KeyMatcher.MMB::matches
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:SwitchPlacingModeWheel",
+				WheelScrollEvent.class,
+				this::switchPlacingMode,
+				e -> e.hasHorizontalMovement() || InputTracker.isKeyPressed(GLFW.GLFW_KEY_LEFT_CONTROL)
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:SelectNextBlockOrTile",
+				WheelScrollEvent.class,
+				this::selectNextBlockOrTile,
+				e -> !e.hasHorizontalMovement() && !InputTracker.isKeyPressed(GLFW.GLFW_KEY_LEFT_CONTROL)
+			)
+		);
+	}
+
+	private static Selection getSelection() {
+		ru.windcorp.progressia.client.Client client = ClientState.getInstance();
+		if (client == null || !client.isReady())
+			return null;
+		
+		return client.getLocalPlayer().getSelection();
+	}
+
+	private static boolean isAnythingSelected() {
+		ru.windcorp.progressia.client.Client client = ClientState.getInstance();
+		if (client == null || !client.isReady())
+			return false;
+
+		return client.getLocalPlayer().getSelection().exists();
+	}
+
+	private void onBlockBreakTrigger(ControlData control) {
+		((ControlBreakBlockData) control).setBlockInWorld(getSelection().getBlock());
+		Sound sfx = new Sound("Progressia:BlockDestroy");
+		sfx.setPosition(getSelection().getPoint());
+		sfx.setPitch((float) (Math.random() + 1 * 0.5));
+		sfx.play(false);
+	}
+
+	private static void onBlockBreakReceived(
+		Server server,
+		PacketControl packet,
+		ru.windcorp.progressia.server.comms.Client client
+	) {
+		Vec3i blockInWorld = ((ControlBreakBlockData) packet.getControl()).getBlockInWorld();
+		server.createAbsoluteContext().setBlock(blockInWorld, BlockDataRegistry.getInstance().get("Test:Air"));
+	}
+
+	private void onBlockPlaceTrigger(ControlData control) {
+		((ControlPlaceBlockData) control).set(
+			getSelectedBlock(),
+			getSelection().getBlock().add_(getSelection().getSurface().getVector())
+		);
+	}
+
+	private static void onBlockPlaceReceived(
+		Server server,
+		PacketControl packet,
+		ru.windcorp.progressia.server.comms.Client client
+	) {
+		ControlPlaceBlockData controlData = ((ControlPlaceBlockData) packet.getControl());
+		BlockData block = controlData.getBlock();
+		Vec3i blockInWorld = controlData.getBlockInWorld();
+		if (server.getWorld().getData().getChunkByBlock(blockInWorld) == null)
+			return;
+		server.createAbsoluteContext().setBlock(blockInWorld, block);
+	}
+
+	private void onTilePlaceTrigger(ControlData control) {
+		((ControlPlaceTileData) control).set(
+			getSelectedTile(),
+			getSelection().getBlock(),
+			getSelection().getSurface()
+		);
+	}
+
+	private static void onTilePlaceReceived(
+		Server server,
+		PacketControl packet,
+		ru.windcorp.progressia.server.comms.Client client
+	) {
+		ControlPlaceTileData controlData = ((ControlPlaceTileData) packet.getControl());
+		TileData tile = controlData.getTile();
+		Vec3i blockInWorld = controlData.getBlockInWorld();
+		AbsFace face = controlData.getFace();
+
+		if (server.getWorld().getData().getChunkByBlock(blockInWorld) == null) {
+			return;
+		}
+		if (server.getWorld().getData().getTiles(blockInWorld, face).isFull()) {
+			return;
+		}
+
+		ServerBlockContext context = server.createContext(blockInWorld);
+		ServerTileStackContext tsContext = context.push(context.toContext(face));
+		ServerTileContext tileContext = tsContext.push(tsContext.getTileCount());
+
+		TileLogic logic = TileLogicRegistry.getInstance().get(tile.getId());
+		if (!logic.canOccupyFace(tileContext)) {
+			return;
+		}
+		tileContext.addTile(tile);
+	}
+
+	public void switchPlacingMode() {
+		isBlockSelected = !isBlockSelected;
+	}
+	
+	public void selectNextBlockOrTile(WheelScrollEvent event) {
+		if (isBlockSelected) {
+			selectedBlock += event.isUp() ? +1 : -1;
+
+			int size = TestContent.PLACEABLE_BLOCKS.size();
+
+			if (selectedBlock < 0) {
+				selectedBlock = size - 1;
+			} else if (selectedBlock >= size) {
+				selectedBlock = 0;
+			}
+		} else {
+			selectedTile += event.isUp() ? +1 : -1;
+
+			int size = TestContent.PLACEABLE_TILES.size();
+
+			if (selectedTile < 0) {
+				selectedTile = size - 1;
+			} else if (selectedTile >= size) {
+				selectedTile = 0;
+			}
+		}
+	}
+	
+	public BlockData getSelectedBlock() {
+		return TestContent.PLACEABLE_BLOCKS.get(selectedBlock);
+	}
+
+	public TileData getSelectedTile() {
+		return TestContent.PLACEABLE_TILES.get(selectedTile);
+	}
+
+	public boolean isBlockSelected() {
+		return isBlockSelected;
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/controls/MovementControls.java

@@ -0,0 +1,316 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.controls;
+
+import org.lwjgl.glfw.GLFW;
+
+import glm.mat._3.Mat3;
+import glm.vec._3.Vec3;
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggerRegistry;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggers;
+import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
+import ru.windcorp.progressia.client.graphics.backend.InputTracker;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.world.Camera;
+import ru.windcorp.progressia.client.graphics.world.EntityAnchor;
+import ru.windcorp.progressia.common.Units;
+import ru.windcorp.progressia.common.util.VectorUtil;
+import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.server.ServerState;
+import ru.windcorp.progressia.test.TestContent;
+
+public class MovementControls {
+
+	/**
+	 * Max delay between space presses that can toggle flying
+	 */
+	private static final double FLYING_SWITCH_MAX_DELAY = Units.get("300 ms");
+
+	/**
+	 * Max delay between W presses that can toggle sprinting
+	 */
+	private static final double SPRINTING_SWITCH_MAX_DELAY = Units.get("300 ms");
+
+	/**
+	 * Min delay between jumps
+	 */
+	private static final double JUMP_MIN_DELAY = Units.get("300 ms");
+
+	/**
+	 * Horizontal and vertical max control speed when flying
+	 */
+	private static final float FLYING_SPEED = Units.get("6 m/s");
+
+	/**
+	 * (0; 1], 1 is instant change, 0 is no control authority
+	 */
+	private static final float FLYING_CONTROL_AUTHORITY = Units.get("2 1/s");
+
+	/**
+	 * Horizontal max control speed when walking
+	 */
+	private static final float WALKING_SPEED = Units.get("4 m/s");
+
+	/**
+	 * Horizontal max control speed when sprinting
+	 */
+	private static final float SPRINTING_SPEED = Units.get("6 m/s");
+
+	/**
+	 * (0; 1], 1 is instant change, 0 is no control authority
+	 */
+	private static final float WALKING_CONTROL_AUTHORITY = Units.get("15 1/s");
+
+	/**
+	 * Vertical velocity instantly added to player when they jump
+	 */
+	private static final float JUMP_VELOCITY = Units.get("5 m/s");
+
+	private boolean isFlying;
+	private boolean isSprinting;
+
+	private double lastSpacePress;
+	private double lastSprintPress;
+
+	{
+		reset();
+	}
+
+	public void applyPlayerControls() {
+		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
+			return;
+		}
+
+		Camera.Anchor cameraAnchor = ClientState.getInstance().getCamera().getAnchor();
+		if (!(cameraAnchor instanceof EntityAnchor)) {
+			return;
+		}
+
+		EntityData player = ((EntityAnchor) cameraAnchor).getEntity();
+
+		boolean isFlying = this.isFlying || player.getId().equals("Test:NoclipCamera");
+		boolean isSprinting = this.isSprinting || player.getId().equals("Test:NoclipCamera");
+
+		final float speed, authority;
+
+		if (isFlying) {
+			speed = FLYING_SPEED;
+			authority = FLYING_CONTROL_AUTHORITY;
+		} else {
+			speed = isSprinting ? SPRINTING_SPEED : WALKING_SPEED;
+			authority = WALKING_CONTROL_AUTHORITY;
+		}
+
+		Mat3 movementTransform = getMovementTransform(player, null);
+		Vec3 desiredVelocity = getDesiredVelocity(movementTransform, speed, isFlying);
+		Vec3 newVelocity = getNewVelocity(
+			desiredVelocity,
+			player.getVelocity(),
+			authority,
+			player.getUpVector(),
+			isFlying
+		);
+		player.getVelocity().set(newVelocity);
+
+		tmp_syncServerEntity();
+	}
+
+	private void tmp_syncServerEntity() {
+		// THIS IS TERRIBLE TEST
+		EntityData serverEntity = ServerState.getInstance().getWorld().getData()
+			.getEntity(TestContent.PLAYER_ENTITY_ID);
+		if (serverEntity != null) {
+			EntityData clientEntity = ClientState.getInstance().getLocalPlayer().getEntity();
+
+			clientEntity.copy(serverEntity);
+			serverEntity.setLookingAt(clientEntity.getLookingAt());
+			serverEntity.setUpVector(clientEntity.getUpVector());
+			serverEntity.setPosition(clientEntity.getPosition());
+			serverEntity.setVelocity(clientEntity.getVelocity());
+		}
+	}
+
+	private Mat3 getMovementTransform(EntityData player, Mat3 mat) {
+		if (mat == null) {
+			mat = new Mat3();
+		}
+
+		Vec3 f = player.getForwardVector(null);
+		Vec3 u = player.getUpVector();
+		Vec3 s = f.cross_(u);
+
+		//@formatter:off
+		return mat.set(
+			f.x, f.y, f.z,
+			s.x, s.y, s.z,
+			u.x, u.y, u.z
+		);
+		//@formatter:on
+	}
+
+	private Vec3 getDesiredVelocity(Mat3 movementTransform, float speed, boolean isFlying) {
+		int forward = 0;
+		int right = 0;
+		int up = 0;
+
+		forward += InputTracker.isKeyPressed(GLFW.GLFW_KEY_W) ? 1 : 0;
+		forward -= InputTracker.isKeyPressed(GLFW.GLFW_KEY_S) ? 1 : 0;
+
+		right += InputTracker.isKeyPressed(GLFW.GLFW_KEY_D) ? 1 : 0;
+		right -= InputTracker.isKeyPressed(GLFW.GLFW_KEY_A) ? 1 : 0;
+
+		if (isFlying) {
+			up += InputTracker.isKeyPressed(GLFW.GLFW_KEY_SPACE) ? 1 : 0;
+			up -= InputTracker.isKeyPressed(GLFW.GLFW_KEY_LEFT_SHIFT) ? 1 : 0;
+		}
+
+		Vec3 desiredVelocity = new Vec3(forward, right, 0);
+		if (forward != 0 && right != 0) {
+			desiredVelocity.normalize();
+		}
+		desiredVelocity.z = up;
+
+		// bug in jglm, .mul() and .mul_() are swapped
+		movementTransform.mul_(desiredVelocity);
+		desiredVelocity.mul(speed);
+
+		return desiredVelocity;
+	}
+
+	private Vec3 getNewVelocity(Vec3 desiredVelocity, Vec3 oldVelocity, float authority, Vec3 up, boolean isFlying) {
+
+		// newVelocity = oldVelocity + small change toward desiredVelocity
+		Vec3 newVelocity = new Vec3()
+			.set(desiredVelocity)
+			.sub(oldVelocity)
+			.mul((float) Math.exp(-authority * GraphicsInterface.getFrameLength()))
+			.negate()
+			.add(desiredVelocity);
+
+		// If we aren't flying, don't change vertical component
+		if (!isFlying) {
+			Vec3 wantedVertical = VectorUtil.projectOnVector(oldVelocity, up, null);
+			VectorUtil.projectOnSurface(newVelocity, up);
+			newVelocity.add(wantedVertical);
+		}
+
+		return newVelocity;
+	}
+
+	public void reset() {
+		isFlying = true;
+		isSprinting = false;
+		lastSpacePress = Double.NEGATIVE_INFINITY;
+		lastSprintPress = Double.NEGATIVE_INFINITY;
+	}
+
+	public void registerControls() {
+		ControlTriggerRegistry triggers = ControlTriggerRegistry.getInstance();
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:JumpOrToggleFlight",
+				KeyEvent.class,
+				this::handleSpacePress,
+				new KeyMatcher("Space")::matches
+			)
+		);
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:ToggleSprint",
+				KeyEvent.class,
+				this::toggleSprint,
+
+				new KeyMatcher("W")::matches,
+				e -> !isFlying
+			)
+		);
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:DisableSprint",
+				KeyEvent.class,
+				this::disableSprint,
+
+				new KeyMatcher("W")::matchesIgnoringAction,
+				KeyEvent::isRelease
+			)
+		);
+	}
+
+	private void handleSpacePress(KeyEvent e) {
+		if (
+			ClientState.getInstance().getCamera().getAnchor() instanceof EntityAnchor
+				&& ((EntityAnchor) ClientState.getInstance().getCamera().getAnchor()).getEntity().getId()
+					.equals("Test:NoclipCamera")
+		) {
+			return;
+		}
+
+		double timeSinceLastSpacePress = e.getTime() - lastSpacePress;
+
+		if (timeSinceLastSpacePress < FLYING_SWITCH_MAX_DELAY) {
+			isSprinting = false;
+			isFlying = !isFlying;
+		} else if (!isFlying && timeSinceLastSpacePress >= JUMP_MIN_DELAY) {
+			jump();
+		}
+
+		lastSpacePress = e.getTime();
+	}
+
+	private void jump() {
+		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
+			return;
+		}
+
+		EntityData player = ClientState.getInstance().getLocalPlayer().getEntity();
+		assert player != null;
+
+		Vec3 up = player.getUpVector();
+
+		player.getVelocity().add(
+			up.x * JUMP_VELOCITY,
+			up.y * JUMP_VELOCITY,
+			up.z * JUMP_VELOCITY
+		);
+	}
+
+	private void toggleSprint(KeyEvent e) {
+		if (e.getTime() - lastSprintPress < SPRINTING_SWITCH_MAX_DELAY) {
+			isSprinting = !isSprinting;
+		}
+		lastSprintPress = e.getTime();
+	}
+
+	private void disableSprint(KeyEvent e) {
+		isSprinting = false;
+	}
+
+	public boolean isFlying() {
+		return isFlying;
+	}
+
+	public boolean isSprinting() {
+		return isSprinting;
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/controls/NoclipCamera.java

@@ -0,0 +1,99 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.controls;
+
+import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;
+
+import glm.vec._3.Vec3;
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.graphics.model.ShapeRenderHelper;
+import ru.windcorp.progressia.client.graphics.world.Camera;
+import ru.windcorp.progressia.client.graphics.world.EntityAnchor;
+import ru.windcorp.progressia.client.world.WorldRender;
+import ru.windcorp.progressia.client.world.entity.EntityRender;
+import ru.windcorp.progressia.client.world.entity.EntityRenderRegistry;
+import ru.windcorp.progressia.client.world.entity.EntityRenderable;
+import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.entity.EntityDataRegistry;
+
+public class NoclipCamera {
+
+	private static class NoclipEntityRender extends EntityRender {
+
+		public NoclipEntityRender() {
+			super("Test:NoclipCamera");
+		}
+		
+		@Override
+		public EntityRenderable createRenderable(EntityData entity) {
+			return new NoclipEntityRenderable(entity);
+		}
+		
+	}
+	
+	private static class NoclipEntityRenderable extends EntityRenderable {
+
+		public NoclipEntityRenderable(EntityData data) {
+			super(data);
+		}
+
+		@Override
+		protected void doRender(ShapeRenderHelper renderer) {
+			// Do nothing
+		}
+
+	}
+	
+	public static void register() {
+		EntityDataRegistry.getInstance().register("Test:NoclipCamera");
+		EntityRenderRegistry.getInstance().register(new NoclipEntityRender());
+	}
+	
+	public static void toggleNoclip() {
+		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
+			return;
+		}
+		
+		Camera camera = ClientState.getInstance().getCamera();
+		WorldRender world = ClientState.getInstance().getWorld();
+		EntityData player = ClientState.getInstance().getLocalPlayer().getEntity();
+		
+		List<EntityData> existingCameras = world.getData().getEntities().stream().filter(e -> e.getId().equals("Test:NoclipCamera")).collect(Collectors.toList());
+		if (!existingCameras.isEmpty()) {
+			existingCameras.forEach(world.getData()::removeEntity);
+			camera.setAnchor(new EntityAnchor(world.getEntityRenderable(player)));
+			return;
+		}
+		
+		EntityData noclipCamera = EntityDataRegistry.getInstance().create("Test:NoclipCamera");
+		
+		noclipCamera.setLookingAt(player.getLookingAt());
+		noclipCamera.setUpVector(player.getUpVector());
+		noclipCamera.setPosition(player.getPosition());
+		noclipCamera.setVelocity(player.getVelocity());
+		noclipCamera.setEntityId(new Random().nextLong());
+		
+		player.setVelocity(new Vec3(0));
+		
+		world.getData().addEntity(noclipCamera);
+		camera.setAnchor(new EntityAnchor(world.getEntityRenderable(noclipCamera)));
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/controls/TestPlayerControls.java

@@ -0,0 +1,207 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package ru.windcorp.progressia.test.controls;
+
+import java.util.List;
+
+import ru.windcorp.progressia.client.ClientState;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggerRegistry;
+import ru.windcorp.progressia.client.comms.controls.ControlTriggers;
+import ru.windcorp.progressia.client.graphics.GUI;
+import ru.windcorp.progressia.client.graphics.backend.GraphicsBackend;
+import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyMatcher;
+import ru.windcorp.progressia.client.graphics.world.LocalPlayer;
+import ru.windcorp.progressia.client.localization.Localizer;
+import ru.windcorp.progressia.common.world.block.BlockData;
+import ru.windcorp.progressia.common.world.entity.EntityData;
+import ru.windcorp.progressia.common.world.tile.TileData;
+import ru.windcorp.progressia.test.LayerButtonTest;
+import ru.windcorp.progressia.test.LayerDebug;
+import ru.windcorp.progressia.test.TestMusicPlayer;
+
+public class TestPlayerControls {
+
+	private static final TestPlayerControls INSTANCE = new TestPlayerControls();
+
+	public static TestPlayerControls getInstance() {
+		return INSTANCE;
+	}
+	
+	private final MovementControls movementControls = new MovementControls();
+	private final CameraControls cameraControls = new CameraControls();
+	private final InteractionControls interactionControls = new InteractionControls();
+
+	private LayerDebug debugLayer = null;
+	
+	{
+		reset();
+	}
+	
+	public static void resetInstance() {
+		INSTANCE.reset();
+	}
+	
+	private void reset() {
+		movementControls.reset();
+		cameraControls.reset();
+		interactionControls.reset();
+		
+		debugLayer = null;
+	}
+
+	public void applyPlayerControls() {
+		movementControls.applyPlayerControls();
+	}
+	
+	public void registerControls() {
+		movementControls.registerControls();
+		cameraControls.registerControls();
+		interactionControls.registerControls();
+		
+		ControlTriggerRegistry triggers = ControlTriggerRegistry.getInstance();
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:PauseGame",
+				KeyEvent.class,
+				this::pauseGame,
+				new KeyMatcher("Escape")::matches
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:ToggleFullscreen",
+				KeyEvent.class,
+				this::toggleFullscreen,
+				new KeyMatcher("F11")::matches
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:ToggleVSync",
+				KeyEvent.class,
+				this::toggleVSync,
+				new KeyMatcher("F12")::matches
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:ToggleDebugLayer",
+				KeyEvent.class,
+				this::toggleDebugLayer,
+				new KeyMatcher("F3")::matches
+			)
+		);
+		
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:SwitchLanguage",
+				KeyEvent.class,
+				this::switchLanguage,
+				new KeyMatcher("L")::matches
+			)
+		);
+
+		triggers.register(
+			ControlTriggers.localOf(
+				"Test:StartNextMusic",
+				KeyEvent.class,
+				TestMusicPlayer::startNextNow,
+				new KeyMatcher("M")::matches
+			)
+		);
+	}
+
+	private void pauseGame() {
+		GUI.addTopLayer(new LayerButtonTest());
+	}
+	
+	private void toggleFullscreen() {
+		GraphicsInterface.makeFullscreen(!GraphicsBackend.isFullscreen());
+	}
+	
+	private void toggleVSync() {
+		GraphicsBackend.setVSyncEnabled(!GraphicsBackend.isVSyncEnabled());
+	}
+
+	private void toggleDebugLayer() {
+		if (debugLayer == null) {
+			this.debugLayer = new LayerDebug();
+		}
+
+		if (GUI.getLayers().contains(debugLayer)) {
+			GUI.removeLayer(debugLayer);
+		} else {
+			GUI.addTopLayer(debugLayer);
+		}
+	}
+
+	private void switchLanguage() {
+		Localizer localizer = Localizer.getInstance();
+		List<String> languages = localizer.getLanguages();
+		
+		int index = languages.indexOf(localizer.getLanguage());
+		
+		if (index == languages.size() - 1) {
+			index = 0;
+		} else {
+			index++;
+		}
+		
+		localizer.setLanguage(languages.get(index));
+	}
+
+	public EntityData getEntity() {
+		return getPlayer().getEntity();
+	}
+
+	public LocalPlayer getPlayer() {
+		return ClientState.getInstance().getLocalPlayer();
+	}
+	
+	public MovementControls getMovementControls() {
+		return movementControls;
+	}
+
+	public BlockData getSelectedBlock() {
+		return interactionControls.getSelectedBlock();
+	}
+
+	public TileData getSelectedTile() {
+		return interactionControls.getSelectedTile();
+	}
+
+	public boolean isBlockSelected() {
+		return interactionControls.isBlockSelected();
+	}
+	
+	public boolean isFlying() {
+		return movementControls.isFlying();
+	}
+	
+	public boolean isSprinting() {
+		return movementControls.isSprinting();
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/gen/Fields.java

@@ -219,6 +219,10 @@ public class Fields {
 		return tweak(f, 1, -1, 1);
 	}
 	
+	public static Field rarify(Field f, float rarity) {
+		return (x, y) -> Math.max((f.compute(x, y) - rarity) / (1 - rarity), 0);
+	}
+
 	public static Field octaves(Field f, double scaleFactor, double amplitudeFactor, int octaves) {
 		return (x, y) -> {
 			double result = 0;

src/main/java/ru/windcorp/progressia/test/gen/TestGenerationConfig.java

@@ -26,6 +26,7 @@ import java.util.function.Function;
 import ru.windcorp.progressia.common.Units;
 import ru.windcorp.progressia.common.util.noise.discrete.WorleyProceduralNoise;
 import ru.windcorp.progressia.common.world.Coordinates;
+import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.server.Server;
 import ru.windcorp.progressia.server.world.generation.WorldGenerator;
 import ru.windcorp.progressia.server.world.generation.planet.Planet;
@@ -125,19 +126,16 @@ public class TestGenerationConfig {
 			)
 		);
 
-		Function<String, SurfaceFloatField> floweriness = flowerName -> fields.register(
-			"Test:Flower" + flowerName,
-			f -> multiply(
-				selectPositive(squash(scale(octaves(fields.primitive(), 2, 3), 100), 2), 1, 0.5),
+		Function<AbsFace, Field> floweriness = f -> multiply(
+			amplify(withMin(squash(scale(octaves(fields.primitive(), 2, 3), 100), 5), 0), 2),
 			tweak(fields.get("Test:Forest", f), 1, -1, 1.1),
 			anti(squash(fields.get("Test:Cliff", f), 10))
-			)
 		);
 
 		features.add(new TestBushFeature("Test:BushFeature", forestiness));
 		features.add(new TestTreeFeature("Test:TreeFeature", forestiness));
 		features.add(new TestGrassFeature("Test:GrassFeature", grassiness));
-		features.add(new TestFlowerFeature("Test:FlowerFeature", floweriness));
+		features.add(new TestFlowerFeature("Test:FlowerFeature", TestContent.FLOWERS, floweriness, fields));
 	}
 
 }

src/main/java/ru/windcorp/progressia/test/gen/feature/TestBushFeature.java

@@ -38,10 +38,12 @@ public class TestBushFeature extends MultiblockVegetationFeature {
 
 		Vec3i center = context.getLocation().add_(0, 0, 1);
 
+		if (size > 0.8) {
 			context.setBlock(center, trunk);
 			context.setBlock(center.add_(0, 0, 1), leaves);
+		}
 
-		iterateBlob(center, stretch(size, 1.3, 2.5), stretch(size, 0.6, 1.5), 0.7, 2, p -> {
+		iterateBlob(center, stretch(size, 0.5, 2.5), stretch(size, 0.6, 1.5), 0.7, 2, p -> {
 			setLeaves(context, p, leaves);
 		});
 	}

src/main/java/ru/windcorp/progressia/test/gen/feature/TestFlowerFeature.java

@@ -17,35 +17,73 @@
  */
 package ru.windcorp.progressia.test.gen.feature;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Set;
 import java.util.function.Function;
 
 import com.google.common.collect.ImmutableSet;
 
+import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileData;
-import ru.windcorp.progressia.common.world.tile.TileDataRegistry;
 import ru.windcorp.progressia.server.world.generation.surface.SurfaceFloatField;
 import ru.windcorp.progressia.server.world.generation.surface.SurfaceTopLayerFeature;
 import ru.windcorp.progressia.server.world.generation.surface.context.SurfaceBlockContext;
+import ru.windcorp.progressia.test.Flowers;
+import ru.windcorp.progressia.test.Flowers.Flower;
+import ru.windcorp.progressia.test.Flowers.FlowerVariant;
 import ru.windcorp.progressia.test.TestContent;
+import ru.windcorp.progressia.test.gen.Fields;
+import ru.windcorp.progressia.test.gen.Fields.Field;
 
 public class TestFlowerFeature extends SurfaceTopLayerFeature {
 
 	private static class FlowerGenerator {
-		private final TileData tile;
+		
+		private final TileData[] variants;
 		private final SurfaceFloatField floweriness;
 
-		public FlowerGenerator(TileData tile, Function<String, SurfaceFloatField> flowerinessGenerator) {
-			this.tile = tile;
-			this.floweriness = flowerinessGenerator.apply(tile.getName());
+		public FlowerGenerator(Flower flower, Function<AbsFace, Field> flowerinessGenerator, Fields fields) {
+			this.floweriness = fields.register(
+				"Test:Flower" + flower.getName(),
+				f -> Fields.rarify(flowerinessGenerator.apply(f), flower.getRarity())
+			);
+			
+			List<TileData> tiles = new ArrayList<>();
+			for (FlowerVariant variant : FlowerVariant.values()) {
+				TileData tile = flower.getTile(variant);
+				if (tile == null) {
+					continue;
+				}
+				
+				tiles.add(tile);
+			}
+			
+			this.variants = tiles.toArray(new TileData[tiles.size()]);
 		}
 
 		public void generate(SurfaceBlockContext context) {
-			if (context.getRandom().nextDouble() < floweriness.get(context)) {
-				context.addTile(RelFace.UP, tile);
+			float floweriness = this.floweriness.get(context);
+			
+			if (floweriness <= 0) {
+				return;
 			}
+			
+			float random = context.getRandom().nextFloat();
+			
+			int variant = (int) Math.floor((random + floweriness - 1) * variants.length);
+			
+			if (variant < 0) {
+				return;
+			} else if (variant >= variants.length) {
+				// Screw doing float math properly, just clamp it
+				variant = variants.length - 1;
 			}
+			
+			context.addTile(RelFace.UP, variants[variant]);
+		}
+		
 	}
 
 	private final Set<String> soilWhitelist;
@@ -58,12 +96,11 @@ public class TestFlowerFeature extends SurfaceTopLayerFeature {
 
 	private final FlowerGenerator[] flowers;
 
-	public TestFlowerFeature(String id, Function<String, SurfaceFloatField> flowerinessGenerator) {
+	public TestFlowerFeature(String id, Flowers flowers, Function<AbsFace, Field> flowerinessGenerator, Fields fields) {
 		super(id);
 
-		this.flowers = TileDataRegistry.getInstance().values().stream()
-			.filter(tile -> tile.getName().endsWith("Flowers"))
-			.map(tile -> new FlowerGenerator(tile, flowerinessGenerator))
+		this.flowers = flowers.getFlowers().stream()
+			.map(flower -> new FlowerGenerator(flower, flowerinessGenerator, fields))
 			.toArray(FlowerGenerator[]::new);
 	}
 

src/main/java/ru/windcorp/progressia/test/gen/feature/TestGrassFeature.java

@@ -19,6 +19,7 @@ package ru.windcorp.progressia.test.gen.feature;
 
 import java.util.List;
 import java.util.Set;
+import java.util.function.Function;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
@@ -58,11 +59,25 @@ public class TestGrassFeature extends SurfaceTopLayerFeature {
 		flatGrasses.put(0.05f, 0.1f, TileDataRegistry.getInstance().get("Test:GrassThreads"));
 	}
 	
-	private final FloatRangeMap<TileData> herbGrasses = new ArrayFloatRangeMap<>();
+	private static final Function<SurfaceBlockContext, TileData> randomPicker(String commonId, String rareId) {
+		TileData common = TileDataRegistry.getInstance().get(commonId);
+		TileData rare = TileDataRegistry.getInstance().get(rareId);
+		final float rareChance = 0.2f;
+		
+		return context -> {
+			if (context.getRandom().nextFloat() < rareChance) {
+				return rare;
+			} else {
+				return common;
+			}
+		};
+	}
+
+	private final FloatRangeMap<Function<SurfaceBlockContext, TileData>> herbGrasses = new ArrayFloatRangeMap<>();
 	{
-		herbGrasses.put(0.6f, 1, TileDataRegistry.getInstance().get("Test:TallGrass"));
-		herbGrasses.put(0.4f, 0.6f, TileDataRegistry.getInstance().get("Test:MediumGrass"));
-		herbGrasses.put(0.1f, 0.4f, TileDataRegistry.getInstance().get("Test:LowGrass"));
+		herbGrasses.put(0.6f, 1, randomPicker("Test:GrassMeadow2", "Test:GrassBluegrass2"));
+		herbGrasses.put(0.4f, 0.6f, randomPicker("Test:GrassMeadow1", "Test:GrassBluegrass1"));
+		herbGrasses.put(0.1f, 0.4f, randomPicker("Test:GrassMeadow0", "Test:GrassBluegrass0"));
 	}
 
 	private final List<TileData> scatter = ImmutableList.of(
@@ -134,9 +149,9 @@ public class TestGrassFeature extends SurfaceTopLayerFeature {
 		}
 
 		if (context.getRandom().nextDouble() < grassiness) {
-			TileData herbGrass = herbGrasses.get((float) grassiness);
+			Function<SurfaceBlockContext, TileData> herbGrass = herbGrasses.get((float) grassiness);
 			if (herbGrass != null) {
-				context.addTile(RelFace.UP, herbGrass);
+				context.addTile(RelFace.UP, herbGrass.apply(context));
 			}
 		}
 	}

src/main/java/ru/windcorp/progressia/test/gen/feature/TestTreeFeature.java

@@ -26,10 +26,10 @@ import ru.windcorp.progressia.server.world.generation.surface.context.SurfaceBlo
 public class TestTreeFeature extends MultiblockVegetationFeature {
 
 	private final BlockData trunk = BlockDataRegistry.getInstance().get("Test:Log");
-	private final BlockData leaves = BlockDataRegistry.getInstance().get("Test:TemporaryLeaves");
+	private final BlockData leaves = BlockDataRegistry.getInstance().get("Test:LeavesPine");
 
 	public TestTreeFeature(String id, SurfaceFloatField selector) {
-		super(id, selector, 10 * 10);
+		super(id, selector, 7 * 7);
 	}
 
 	@Override
@@ -39,18 +39,29 @@ public class TestTreeFeature extends MultiblockVegetationFeature {
 		Vec3i center = start.add_(0);
 
 		double size = selectorValue * randomDouble(context, 0.8, 1.2);
+		double volume = stretch(size, 2.5, 1);
 
-		int height = (int) stretch(size, 3, 7);
+		int height = (int) stretch(size, 8, 12);
 		for (; center.z < start.z + height; ++center.z) {
 			context.setBlock(center, trunk);
 		}
+		--center.z;
 
-		double branchHorDistance = 0;
+		iterateBlob(center, 1.5 * volume, 1.75, 0.5, 3, p -> {
+			setLeaves(context, p, leaves);
+		});
+
+		int branchCount = 1 + context.getRandom().nextInt(2) + (int) (stretch(size, 0, 4));
+
+		for (int i = 0; i < branchCount; ++i) {
 
-		do {
-			double branchSize = 0.5 + randomDouble(context, 1, 2) * size;
 			double branchHorAngle = randomDouble(context, 0, 2 * Math.PI);
-			int branchVertOffset = (int) randomDouble(context, -2, 0);
+			double branchHorDistance = randomDouble(context, 0.7, 1.5) * volume;
+
+			int branchVertOffset = (int) randomDouble(context, -height / 3.0, -height / 1.5);
+
+			double branchSize = randomDouble(context, 1, 2) * volume;
+			double branchHeight = 1.5;
 
 			Vec3i branchCenter = center.add_(
 				(int) (Math.sin(branchHorAngle) * branchHorDistance),
@@ -58,12 +69,12 @@ public class TestTreeFeature extends MultiblockVegetationFeature {
 				branchVertOffset
 			);
 
-			iterateBlob(branchCenter, 1 * branchSize, 2.3 * branchSize, 0.5, 3, p -> {
+			iterateBlob(branchCenter, branchSize, branchHeight, 0.5, 3, p -> {
 				setLeaves(context, p, leaves);
 			});
 
-			branchHorDistance = randomDouble(context, 0.7, 1.5);
-		} while (context.getRandom().nextInt(8) > 1);
+		}
+
 	}
 
 }

src/main/java/ru/windcorp/progressia/test/trees/BlockRenderLeavesHazel.java

@@ -0,0 +1,99 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.trees;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Random;
+import java.util.function.Consumer;
+
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.client.graphics.backend.Usage;
+import ru.windcorp.progressia.client.graphics.model.Renderable;
+import ru.windcorp.progressia.client.graphics.model.Shape;
+import ru.windcorp.progressia.client.graphics.model.ShapePart;
+import ru.windcorp.progressia.client.graphics.model.ShapePrototype;
+import ru.windcorp.progressia.client.graphics.texture.Texture;
+import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram;
+import ru.windcorp.progressia.client.world.block.BlockRender;
+import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizerSimple.BlockOptimizedSimple;
+import ru.windcorp.progressia.common.world.DefaultChunkData;
+
+public class BlockRenderLeavesHazel extends BlockRender implements BlockOptimizedSimple {
+
+	private final Texture texture;
+
+	public BlockRenderLeavesHazel(String id, Texture texture) {
+		super(id);
+		this.texture = texture;
+	}
+
+	@Override
+	public void getShapeParts(DefaultChunkData chunk, Vec3i bic, Consumer<ShapePart> output) {
+		ShapePrototype sp = ShapePrototype.unitSquare(texture).makeDoubleSided();
+		sp.push().translate(bic.x, bic.y, bic.z);
+
+		Random random = new Random(chunk.getX() ^ bic.x);
+		random.setSeed(random.nextLong() ^ chunk.getY() ^ bic.y);
+		random.setSeed(random.nextLong() ^ chunk.getZ() ^ bic.z);
+
+		final float angle = (float) (Math.PI / 4);
+
+		sp.push().translate(0, 0, random.nextFloat() * 0.5f)
+			.rotateZ(random.nextFloat() * Math.PI)
+			.rotateX(-0.3f + random.nextFloat() * 0.6)
+			.scale(1.3f);
+
+		sp.push().translate(0, 0, -0.5f).rotateX(angle).translate(-0.5f, -0.5f, 0);
+		output.accept(sp.build());
+		sp.pop();
+
+		sp.push().translate(0, 0, -0.5f).rotateX(-angle).translate(-0.5f, -0.5f, 0);
+		output.accept(sp.build());
+		sp.pop();
+
+		sp.push().translate(0, 0, -0.5f).rotateY(angle).translate(-0.5f, -0.5f, 0);
+		output.accept(sp.build());
+		sp.pop();
+
+		sp.push().translate(0, 0, -0.5f).rotateY(-angle).translate(-0.5f, -0.5f, 0);
+		output.accept(sp.build());
+		sp.pop();
+
+		sp.pop();
+	}
+
+	@Override
+	public Renderable createRenderable(DefaultChunkData chunk, Vec3i blockInChunk) {
+		Collection<ShapePart> parts = new ArrayList<>(6);
+
+		getShapeParts(chunk, blockInChunk, parts::add);
+
+		return new Shape(
+			Usage.STATIC,
+			WorldRenderProgram.getDefault(),
+			parts.toArray(new ShapePart[parts.size()])
+		);
+	}
+
+	@Override
+	public boolean needsOwnRenderable() {
+		return false;
+	}
+
+}

src/main/java/ru/windcorp/progressia/test/trees/BlockRenderLeavesPine.java

@@ -0,0 +1,106 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.test.trees;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Random;
+import java.util.function.Consumer;
+
+import glm.vec._3.i.Vec3i;
+import ru.windcorp.progressia.client.graphics.Colors;
+import ru.windcorp.progressia.client.graphics.backend.Usage;
+import ru.windcorp.progressia.client.graphics.model.Renderable;
+import ru.windcorp.progressia.client.graphics.model.Shape;
+import ru.windcorp.progressia.client.graphics.model.ShapePart;
+import ru.windcorp.progressia.client.graphics.model.ShapePrototype;
+import ru.windcorp.progressia.client.graphics.texture.Texture;
+import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram;
+import ru.windcorp.progressia.client.world.block.BlockRender;
+import ru.windcorp.progressia.client.world.cro.ChunkRenderOptimizerSimple.BlockOptimizedSimple;
+import ru.windcorp.progressia.common.world.DefaultChunkData;
+
+public class BlockRenderLeavesPine extends BlockRender implements BlockOptimizedSimple {
+
+	private final Texture texture;
+
+	public BlockRenderLeavesPine(String id, Texture texture) {
+		super(id);
+		this.texture = texture;
+	}
+
+	@Override
+	public void getShapeParts(DefaultChunkData chunk, Vec3i bic, Consumer<ShapePart> output) {
+		Random random = new Random(chunk.getX() ^ bic.x);
+		random.setSeed(random.nextLong() ^ chunk.getY() ^ bic.y);
+		random.setSeed(random.nextLong() ^ chunk.getZ() ^ bic.z);
+
+		ShapePrototype sp = ShapePrototype.unitSquare(texture).makeDoubleSided();
+		sp.push().translate(
+			bic.x + random.nextFloat() * 0.3f - 0.15f,
+			bic.y + random.nextFloat() * 0.3f - 0.15f,
+			bic.z
+		);
+
+		final float angle = 0.5f;
+
+		for (float offset : new float[] { -0.25f, -0.75f }) {
+			sp.push().translate(0, 0, offset + random.nextFloat() * 0.5f)
+				.rotateZ(-0.3f + random.nextFloat() * 0.6)
+				.rotateX(-0.3f + random.nextFloat() * 0.6);
+
+			sp.push().translate(0, 0, -0.3f).rotateX(angle).translate(-0.5f, -0.5f, 0.5f);
+			output.accept(sp.build());
+			sp.pop();
+
+			sp.push().translate(0, 0, -0.3f).rotateX(-angle).translate(-0.5f, -0.5f, 0.5f);
+			output.accept(sp.build());
+			sp.pop();
+
+			sp.push().translate(0, 0, -0.3f).rotateY(angle).translate(-0.5f, -0.5f, 0.5f);
+			output.accept(sp.build());
+			sp.pop();
+
+			sp.push().translate(0, 0, -0.3f).rotateY(-angle).translate(-0.5f, -0.5f, 0.5f);
+			output.accept(sp.build());
+			sp.pop();
+
+			sp.pop();
+			sp.addColorMultiplier(Colors.GRAY_A);
+		}
+	}
+
+	@Override
+	public Renderable createRenderable(DefaultChunkData chunk, Vec3i blockInChunk) {
+		Collection<ShapePart> parts = new ArrayList<>(6);
+
+		getShapeParts(chunk, blockInChunk, parts::add);
+
+		return new Shape(
+			Usage.STATIC,
+			WorldRenderProgram.getDefault(),
+			parts.toArray(new ShapePart[parts.size()])
+		);
+	}
+
+	@Override
+	public boolean needsOwnRenderable() {
+		return false;
+	}
+
+}

src/main/resources/assets/default.colorScheme

@@ -0,0 +1,80 @@
+# Default color scheme for Progressia
+#
+# Line format:
+#   KEY = VALUE
+# KEY must be a legal ID
+# VALUE may be one of the following:
+#   #RGB
+#   #ARGB
+#   #RRGGBB
+#   #AARRGGBB
+#   $OTHER_KEY
+
+Core:Background = #EFF0F1
+Core:Border = #CBCBD0
+Core:DisabledBackground = $Core:Background
+Core:DisabledBorder = #DEDFE1
+Core:Accent = #37A3E6
+Core:AccentLighter = #C3E4F7
+
+Core:Text = #31363B
+
+Core:ButtonBorderDisabled = $Core:DisabledBorder
+Core:ButtonBorderPressed  = $Core:Accent
+Core:ButtonBorderHovered  = $Core:Accent
+Core:ButtonBorderFocused  = $Core:Accent
+Core:ButtonBorderInactive = $Core:Border
+Core:ButtonFillDisabled   = $Core:DisabledBackground
+Core:ButtonFillPressed    = $Core:Accent
+Core:ButtonFillHovered    = $Core:AccentLighter
+Core:ButtonFillFocused    = $Core:Background
+Core:ButtonFillInactive   = $Core:Background
+Core:ButtonTextDisabled   = $Core:DisabledBorder
+Core:ButtonTextPressed    = $Core:Background
+Core:ButtonTextHovered    = $Core:Text
+Core:ButtonTextFocused    = $Core:Text
+Core:ButtonTextInactive   = $Core:Text
+
+Core:CheckboxBorderDisabled  = $Core:DisabledBorder
+Core:CheckboxBorderPressed   = $Core:Accent
+Core:CheckboxBorderHovered   = $Core:Accent
+Core:CheckboxBorderFocused   = $Core:Accent
+Core:CheckboxBorderInactive  = $Core:Border
+Core:CheckboxFillDisabled    = $Core:DisabledBackground
+Core:CheckboxFillPressed     = $Core:Accent
+Core:CheckboxFillHovered     = $Core:AccentLighter
+Core:CheckboxFillFocused     = $Core:Background
+Core:CheckboxFillInactive    = $Core:Background
+Core:CheckboxTextDisabled    = $Core:DisabledBorder
+Core:CheckboxTextPressed     = $Core:Accent
+Core:CheckboxTextHovered     = $Core:Text
+Core:CheckboxTextFocused     = $Core:Text
+Core:CheckboxTextInactive    = $Core:Text
+Core:CheckboxCheckDisabled   = $Core:DisabledBorder
+Core:CheckboxCheckPressed    = $Core:Accent
+Core:CheckboxCheckHovered    = $Core:Accent
+Core:CheckboxCheckFocused    = $Core:Accent
+Core:CheckboxCheckInactive   = $Core:Accent
+
+Core:RadioButtonBorderDisabled  = $Core:DisabledBorder
+Core:RadioButtonBorderPressed   = $Core:Accent
+Core:RadioButtonBorderHovered   = $Core:Accent
+Core:RadioButtonBorderFocused   = $Core:Accent
+Core:RadioButtonBorderInactive  = $Core:Border
+Core:RadioButtonFillDisabled    = $Core:DisabledBackground
+Core:RadioButtonFillPressed     = $Core:Accent
+Core:RadioButtonFillHovered     = $Core:AccentLighter
+Core:RadioButtonFillFocused     = $Core:Background
+Core:RadioButtonFillInactive    = $Core:Background
+Core:RadioButtonTextDisabled    = $Core:DisabledBorder
+Core:RadioButtonTextPressed     = $Core:Accent
+Core:RadioButtonTextHovered     = $Core:Text
+Core:RadioButtonTextFocused     = $Core:Text
+Core:RadioButtonTextInactive    = $Core:Text
+Core:RadioButtonCheckDisabled   = $Core:DisabledBorder
+Core:RadioButtonCheckPressed    = $Core:Accent
+Core:RadioButtonCheckHovered    = $Core:Accent
+Core:RadioButtonCheckFocused    = $Core:Accent
+Core:RadioButtonCheckInactive   = $Core:Accent
+
+Core:MenuLayerTint = #6000