Better 3d falling

-Sand now can fall from and to the direction of gravity
-Registers every FallingBlock block to a different value. It doesnt
quite work though
-Removed unused code

docs/CONTRIBUTING.md

@@ -0,0 +1,69 @@
+# Contributing Guidelines
+
+This document lists conventions adopted by Progressia developers.
+
+## git
+
+### Branches
+Progressia repository contains a `master` branch and several "feature" branches.
+
+`master` is expected to contain a version of the game suitable for demonstration and forking/branching. Do not commit directly to `master` without OLEGSHA's approval.
+- `master` must always correctly build without compiler warnings (see below).
+- `master` must always pass all unit tests.
+- `master` must always be able to launch successfully.
+- `master` must always only contain working features.
+- `master` should not contain excessive debug code.
+- `master` must always have its code and filenames formatted (see below).
+
+"Feature" branches are branches dedicated to the development of a single feature. When the feature reaches completion the branch is merged into `master` and removed. Intermediate merges into `master` may occur when some fitting milestone is reached. Intermediate merges from `master` may be done as necessary. Merges between "feature" branches should generally be avoided.
+
+When beginning work on a new feature, create a new branch based on `master` (or on another "feature" branch if absolutely necessary). Use `all-small-with-dashes` to name the branch: `add-trees` or `rebalance-plastics` are good names. Do not fix unrelated bugs or work on unrelated features in a "feature" branch - create a new one, switch to an existing one or commit directly to `master` if the changes are small enough.
+
+"Feature" branches may not be formatted properly. Formatting is required before merging into `master` or other branches.
+
+### Commits
+- Commits must leave the branch in a state that builds without compiler warnings (see below).
+- Changes should be grouped in commits semantically. Avoid committing many small related changes in sequence; if necessary, wait and accumulate them. Avoid committing unrelated changes together; if necessary, split staged changes into several commits. This should normally result in about 1-2 commits for a day's work.
+- Commit bulk changes (renaming, formatting, ...) separately. Don't ever commit whitespace changes outside formatting commits.
+- Message format:
+
+```
+Short description of changes
+<empty line>
+- Enumeration of changes
+  - Nest when appropriate
+- Use dashes only
+- List not needed for small commits
+```
+
+Example:
+
+```
+Changed packages for relations, renamed Face to ShapePart
+
+- Added BlockRelation as an abstract superclass to existing relations
+  - Must be given an absolute "up" direction before use
+- Moved AbsFace, AbsRelation and BlockRelation to .world.rels
+- Renamed Face to ShapePart to reduce confusion with AbsFace
+```
+
+- Only commit changes described in the commit message. Please double-check staged files before committing.
+- Avoid merge conflicts. Pull before committing.
+- Better sign commits than not. See: [git](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work), [GitHub](https://docs.github.com/en/github/authenticating-to-github/managing-commit-signature-verification).
+
+## Code
+
+### Warnings
+Make sure that all committed code contains no compiler warnings. This specifically includes unused imports, unused private members, missing `@Override`s and warnings related to generics.
+
+Warnings about unknown tokens in `@SuppressWarnings` are temporarily ignored. Please disable them in your IDE.
+
+### Code Style
+Formatting code is important.
+
+- The format is specified within the files inside `/templates_and_presets/eclipse_ide`. Import the specifications into Eclipse or IntelliJ IDEA and use the IDEs' format feature. Alternatively format the code manually in accordance with existing files.
+- Only use tabs for indentation. Never indent with spaces even when wrapping lines. This is to ensure that indentation does not break when tab width is different.
+- Don't use `I` prefix for interfaces (not `IDoable` but `Doable`).
+- Prioritize readability over compactness. Do not hesitate to use (very) long identifiers if they aid comprehension.
+- Document all mathematics unless it is trivial, especially when using math notation for variable names.
+- Use proper English when writing comments. Avoid boxes in comments. Use `//` for single-line comments.

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

@@ -15,7 +15,7 @@
  * 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.Array;
@@ -611,8 +611,7 @@ public class ArrayUtil {
 		int end = offset + length;
 		if (end > arrayLength || offset < 0)
 			throw new IllegalArgumentException(
-				"Array contains [0; " + arrayLength + "), requested [" + offset + "; " + end + ")"
-			);
+					"Array contains [0; " + arrayLength + "), requested [" + offset + "; " + end + ")");
 
 		return length;
 	}
@@ -628,8 +627,7 @@ public class ArrayUtil {
 
 		if (end > arrayLength || start < 0)
 			throw new IllegalArgumentException(
-				"Array contains [0; " + arrayLength + "), requested [" + start + "; " + end + ")"
-			);
+					"Array contains [0; " + arrayLength + "), requested [" + start + "; " + end + ")");
 
 		return end;
 	}

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

@@ -15,7 +15,7 @@
  * 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.io.OutputStream;

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

@@ -15,7 +15,7 @@
  * 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.util.HashMap;
@@ -30,18 +30,8 @@ public class PrimitiveUtil {
 	private static final Map<Class<?>, Object> PRIMITIVE_TO_NULL = new HashMap<>();
 
 	static {
-		for (
-			Class<?> boxed : new Class<?>[] {
-				Boolean.class,
-				Byte.class,
-				Short.class,
-				Character.class,
-				Integer.class,
-				Long.class,
-				Float.class,
-				Double.class
-			}
-		) {
+		for (Class<?> boxed : new Class<?>[] { Boolean.class, Byte.class, Short.class, Character.class, Integer.class,
+				Long.class, Float.class, Double.class }) {
 			try {
 				PRIMITIVE_TO_BOXED.put((Class<?>) boxed.getField("TYPE").get(null), boxed);
 			} catch (Exception e) {

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

@@ -15,7 +15,7 @@
  * 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.util.function.*;
@@ -40,8 +40,7 @@ import java.util.stream.Stream;
 
 /**
  * Contains static methods to create {@link Stream Streams} that synchronize
- * their
- * <a href=
+ * their <a href=
  * "https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps">
  * terminal operations</a> on a given monitor.
  * 
@@ -50,7 +49,7 @@ import java.util.stream.Stream;
  */
 
 // SonarLint: "Stream.peek" should be used with caution (java:S3864)
-//   We are implementing Stream, so peek() is required.
+// We are implementing Stream, so peek() is required.
 @SuppressWarnings("squid:S3864")
 
 public class SyncStreams {
@@ -1070,21 +1069,18 @@ public class SyncStreams {
 	}
 
 	/**
-	 * Wraps the given {@link Stream} to make all
-	 * <a href=
+	 * Wraps the given {@link Stream} to make all <a href=
 	 * "https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps">
 	 * terminal operations</a> acquire the provided monitor's lock before
-	 * execution. Intermediate operations
-	 * return streams that are also synchronized on the same object. The created
-	 * stream will behave identically
-	 * to the provided stream in all other aspects. Use this to synchronize
-	 * access to stream's source.
+	 * execution. Intermediate operations return streams that are also
+	 * synchronized on the same object. The created stream will behave
+	 * identically to the provided stream in all other aspects. Use this to
+	 * synchronize access to stream's source.
 	 * <p>
 	 * <i>The returned {@code Stream}'s {@link Stream#iterator() iterator()} and
-	 * {@link Stream#spliterator()
-	 * spliterator()} methods return regular non-synchronized iterators and
-	 * spliterators respectively</i>. It
-	 * is the user's responsibility to avoid concurrency issues:
+	 * {@link Stream#spliterator() spliterator()} methods return regular
+	 * non-synchronized iterators and spliterators respectively</i>. It is the
+	 * user's responsibility to avoid concurrency issues:
 	 * 
 	 * <pre>
 	 * synchronized (stream.getMonitor()) {
@@ -1103,14 +1099,17 @@ public class SyncStreams {
 	 * stream.forEach(System.out::println); // Should never throw a ConcurrentModificationException
 	 * </pre>
 	 * 
-	 * @param <T>     the class of objects in the Stream
-	 * @param stream  the stream to wrap.
-	 * @param monitor the object that the stream will use for synchronization.
-	 *                When {@code null}, the stream
-	 *                will synchronize on itself.
+	 * @param <T>
+	 *            the class of objects in the Stream
+	 * @param stream
+	 *            the stream to wrap.
+	 * @param monitor
+	 *            the object that the stream will use for synchronization. When
+	 *            {@code null}, the stream will synchronize on itself.
 	 * @return a {@link SyncStream SyncStream&lt;T&gt;} synchronized on
 	 *         {@code monitor} and backed by {@code stream}.
-	 * @throws NullPointerException if {@code stream == null}.
+	 * @throws NullPointerException
+	 *             if {@code stream == null}.
 	 */
 	public static <T> SyncStream<T> synchronizedStream(Stream<T> stream, Object monitor) {
 		Objects.requireNonNull(stream, "stream cannot be null");
@@ -1118,22 +1117,19 @@ public class SyncStreams {
 	}
 
 	/**
-	 * Wraps the given {@link IntStream} to make all
-	 * <a href=
+	 * Wraps the given {@link IntStream} to make all <a href=
 	 * "https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps">
 	 * terminal operations</a> acquire the provided monitor's lock before
-	 * execution. Intermediate operations
-	 * return streams that are also synchronized on the same object. The created
-	 * stream will behave identically
-	 * to the provided stream in all other aspects. Use this to synchronize
-	 * access to stream's source.
+	 * execution. Intermediate operations return streams that are also
+	 * synchronized on the same object. The created stream will behave
+	 * identically to the provided stream in all other aspects. Use this to
+	 * synchronize access to stream's source.
 	 * <p>
 	 * <i>The returned {@code IntStream}'s {@link IntStream#iterator()
-	 * iterator()} and
-	 * {@link IntStream#spliterator() spliterator()} methods return regular
-	 * non-synchronized iterators and
-	 * spliterators respectively</i>. It is the user's responsibility to avoid
-	 * concurrency issues:
+	 * iterator()} and {@link IntStream#spliterator() spliterator()} methods
+	 * return regular non-synchronized iterators and spliterators
+	 * respectively</i>. It is the user's responsibility to avoid concurrency
+	 * issues:
 	 * 
 	 * <pre>
 	 * synchronized (stream.getMonitor()) {
@@ -1152,13 +1148,15 @@ public class SyncStreams {
 	 * stream.forEach(System.out::println); // Should never throw a ConcurrentModificationException
 	 * </pre>
 	 * 
-	 * @param stream  the stream to wrap.
-	 * @param monitor the object that the stream will use for synchronization.
-	 *                When {@code null}, the stream
-	 *                will synchronize on itself.
+	 * @param stream
+	 *            the stream to wrap.
+	 * @param monitor
+	 *            the object that the stream will use for synchronization. When
+	 *            {@code null}, the stream will synchronize on itself.
 	 * @return a {@link SyncIntStream} synchronized on {@code monitor} and
 	 *         backed by {@code stream}.
-	 * @throws NullPointerException if {@code stream == null}.
+	 * @throws NullPointerException
+	 *             if {@code stream == null}.
 	 */
 	public static SyncIntStream synchronizedStream(IntStream stream, Object monitor) {
 		Objects.requireNonNull(stream, "stream cannot be null");
@@ -1166,22 +1164,19 @@ public class SyncStreams {
 	}
 
 	/**
-	 * Wraps the given {@link LongStream} to make all
-	 * <a href=
+	 * Wraps the given {@link LongStream} to make all <a href=
 	 * "https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps">
 	 * terminal operations</a> acquire the provided monitor's lock before
-	 * execution. Intermediate operations
-	 * return streams that are also synchronized on the same object. The created
-	 * stream will behave identically
-	 * to the provided stream in all other aspects. Use this to synchronize
-	 * access to stream's source.
+	 * execution. Intermediate operations return streams that are also
+	 * synchronized on the same object. The created stream will behave
+	 * identically to the provided stream in all other aspects. Use this to
+	 * synchronize access to stream's source.
 	 * <p>
 	 * <i>The returned {@code LongStream}'s {@link LongStream#iterator()
-	 * iterator()} and
-	 * {@link LongStream#spliterator() spliterator()} methods return regular
-	 * non-synchronized iterators and
-	 * spliterators respectively</i>. It is the user's responsibility to avoid
-	 * concurrency issues:
+	 * iterator()} and {@link LongStream#spliterator() spliterator()} methods
+	 * return regular non-synchronized iterators and spliterators
+	 * respectively</i>. It is the user's responsibility to avoid concurrency
+	 * issues:
 	 * 
 	 * <pre>
 	 * synchronized (stream.getMonitor()) {
@@ -1200,13 +1195,15 @@ public class SyncStreams {
 	 * stream.forEach(System.out::println); // Should never throw a ConcurrentModificationException
 	 * </pre>
 	 * 
-	 * @param stream  the stream to wrap.
-	 * @param monitor the object that the stream will use for synchronization.
-	 *                When {@code null}, the stream
-	 *                will synchronize on itself.
+	 * @param stream
+	 *            the stream to wrap.
+	 * @param monitor
+	 *            the object that the stream will use for synchronization. When
+	 *            {@code null}, the stream will synchronize on itself.
 	 * @return a {@link SyncLongStream} synchronized on {@code monitor} and
 	 *         backed by {@code stream}.
-	 * @throws NullPointerException if {@code stream == null}.
+	 * @throws NullPointerException
+	 *             if {@code stream == null}.
 	 */
 	public static SyncLongStream synchronizedStream(LongStream stream, Object monitor) {
 		Objects.requireNonNull(stream, "stream cannot be null");
@@ -1214,22 +1211,19 @@ public class SyncStreams {
 	}
 
 	/**
-	 * Wraps the given {@link DoubleStream} to make all
-	 * <a href=
+	 * Wraps the given {@link DoubleStream} to make all <a href=
 	 * "https://docs.oracle.com/javase/8/docs/api/java/util/stream/package-summary.html#StreamOps">
 	 * terminal operations</a> acquire the provided monitor's lock before
-	 * execution. Intermediate operations
-	 * return streams that are also synchronized on the same object. The created
-	 * stream will behave identically
-	 * to the provided stream in all other aspects. Use this to synchronize
-	 * access to stream's source.
+	 * execution. Intermediate operations return streams that are also
+	 * synchronized on the same object. The created stream will behave
+	 * identically to the provided stream in all other aspects. Use this to
+	 * synchronize access to stream's source.
 	 * <p>
 	 * <i>The returned {@code DoubleStream}'s {@link DoubleStream#iterator()
-	 * iterator()} and
-	 * {@link DoubleStream#spliterator() spliterator()} methods return regular
-	 * non-synchronized iterators and
-	 * spliterators respectively</i>. It is the user's responsibility to avoid
-	 * concurrency issues:
+	 * iterator()} and {@link DoubleStream#spliterator() spliterator()} methods
+	 * return regular non-synchronized iterators and spliterators
+	 * respectively</i>. It is the user's responsibility to avoid concurrency
+	 * issues:
 	 * 
 	 * <pre>
 	 * synchronized (stream.getMonitor()) {
@@ -1248,13 +1242,15 @@ public class SyncStreams {
 	 * stream.forEach(System.out::println); // Should never throw a ConcurrentModificationException
 	 * </pre>
 	 * 
-	 * @param stream  the stream to wrap.
-	 * @param monitor the object that the stream will use for synchronization.
-	 *                When {@code null}, the stream
-	 *                will synchronize on itself.
+	 * @param stream
+	 *            the stream to wrap.
+	 * @param monitor
+	 *            the object that the stream will use for synchronization. When
+	 *            {@code null}, the stream will synchronize on itself.
 	 * @return a {@link SyncDoubleStream} synchronized on {@code monitor} and
 	 *         backed by {@code stream}.
-	 * @throws NullPointerException if {@code stream == null}.
+	 * @throws NullPointerException
+	 *             if {@code stream == null}.
 	 */
 	public static SyncDoubleStream synchronizedStream(DoubleStream stream, Object monitor) {
 		Objects.requireNonNull(stream, "stream cannot be null");

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

@@ -15,7 +15,7 @@
  * 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 SyntaxException extends Exception {

src/main/java/ru/windcorp/jputil/chars/CharArrayIterator.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.text.CharacterIterator;
@@ -108,7 +108,7 @@ public class CharArrayIterator implements CharacterIterator {
 		return pos;
 	}
 
-//	@SuppressWarnings("all") Just STFU, this _is_ terrific
+	// @SuppressWarnings("all") Just STFU, this _is_ terrific
 
 	// SonarLint: "clone" should not be overridden (java:S2975)
 	// And I wouldn't have done that if only CharacterIterator had not required

src/main/java/ru/windcorp/jputil/chars/CharConsumer.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.util.function.IntConsumer;

src/main/java/ru/windcorp/jputil/chars/CharConsumers.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.util.Objects;

src/main/java/ru/windcorp/jputil/chars/CharPredicate.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.util.Arrays;

src/main/java/ru/windcorp/jputil/chars/CharSupplier.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.util.function.IntSupplier;

src/main/java/ru/windcorp/jputil/chars/EscapeException.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 public class EscapeException extends Exception {

src/main/java/ru/windcorp/jputil/chars/Escaper.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.text.CharacterIterator;
@@ -103,14 +103,8 @@ public class Escaper {
 
 	}
 
-	public static final Escaper JAVA = new Escaper(
-		'\\',
-		'u',
-		"tbnrf'\"".toCharArray(),
-		"\t\b\n\r\f\'\"".toCharArray(),
-		true,
-		true
-	);
+	public static final Escaper JAVA = new Escaper('\\', 'u', "tbnrf'\"".toCharArray(), "\t\b\n\r\f\'\"".toCharArray(),
+			true, true);
 
 	private final char escapeChar;
 	private final char unicodeEscapeChar;
@@ -120,14 +114,8 @@ public class Escaper {
 	private final boolean preferUnicode;
 	private final boolean strict;
 
-	protected Escaper(
-		char escapeChar,
-		char unicodeEscapeChar,
-		char[] safes,
-		char[] unsafes,
-		boolean preferUnicode,
-		boolean strict
-	) {
+	protected Escaper(char escapeChar, char unicodeEscapeChar, char[] safes, char[] unsafes, boolean preferUnicode,
+			boolean strict) {
 		this.escapeChar = escapeChar;
 		this.unicodeEscapeChar = unicodeEscapeChar;
 		this.safes = safes;
@@ -152,8 +140,7 @@ public class Escaper {
 		for (char c : unsafes) {
 			if (c == escapeChar)
 				throw new IllegalArgumentException(
-					"Unsafe characters contain escape chatacter (escape character is escaped automatically)"
-				);
+						"Unsafe characters contain escape chatacter (escape character is escaped automatically)");
 			if (c == unicodeEscapeChar)
 				throw new IllegalArgumentException("Unsafe characters contain Unicode escape chatacter");
 		}
@@ -173,11 +160,7 @@ public class Escaper {
 			end = Integer.MAX_VALUE;
 		else
 			end = src.getPosition() + length;
-		while (
-			src.has() &&
-				src.getPosition() < end &&
-				(until == null || !until.test(src.current()))
-		)
+		while (src.has() && src.getPosition() < end && (until == null || !until.test(src.current())))
 			escape(src.consume(), output);
 	}
 
@@ -225,11 +208,7 @@ public class Escaper {
 
 		int result = 0;
 
-		while (
-			src.has() &&
-				src.getPosition() < end &&
-				(until == null || !until.test(src.current()))
-		) {
+		while (src.has() && src.getPosition() < end && (until == null || !until.test(src.current()))) {
 			result += getEscapedLength(src.consume());
 		}
 
@@ -257,11 +236,7 @@ public class Escaper {
 			end = Integer.MAX_VALUE;
 		else
 			end = src.getPosition() + length;
-		while (
-			src.has() &&
-				src.getPosition() < end &&
-				(until == null || !until.test(src.current()))
-		) {
+		while (src.has() && src.getPosition() < end && (until == null || !until.test(src.current()))) {
 			output.accept(unescapeOneSequence(src));
 		}
 	}
@@ -282,10 +257,8 @@ public class Escaper {
 
 				if (src.current() == unicodeEscapeChar) {
 					src.next();
-					return (char) (hexValue(src.consume()) << (4 * 3) |
-						hexValue(src.consume()) << (4 * 2) |
-						hexValue(src.consume()) << (4 * 1) |
-						hexValue(src.consume()) << (4 * 0));
+					return (char) (hexValue(src.consume()) << (4 * 3) | hexValue(src.consume()) << (4 * 2)
+							| hexValue(src.consume()) << (4 * 1) | hexValue(src.consume()) << (4 * 0));
 				}
 
 				int index = ArrayUtil.firstIndexOf(safes, src.current());
@@ -315,11 +288,7 @@ public class Escaper {
 
 		int result = 0;
 
-		while (
-			src.has() &&
-				src.getPosition() < end &&
-				(until == null || !until.test(src.current()))
-		) {
+		while (src.has() && src.getPosition() < end && (until == null || !until.test(src.current()))) {
 			skipOneSequence(src);
 			result++;
 		}
@@ -328,11 +297,7 @@ public class Escaper {
 	}
 
 	public void skipOneSequence(CharReader src) {
-		if (
-			src.current() == escapeChar
-				&&
-				src.next() == unicodeEscapeChar
-		) {
+		if (src.current() == escapeChar && src.next() == unicodeEscapeChar) {
 			src.advance(4);
 		}
 		src.next();

src/main/java/ru/windcorp/jputil/chars/FancyCharacterIterator.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.text.CharacterIterator;
@@ -86,7 +86,7 @@ public class FancyCharacterIterator implements CharacterIterator {
 		return sb.toString();
 	}
 
-//	@SuppressWarnings("all") Just STFU, this _is_ terrific
+	// @SuppressWarnings("all") Just STFU, this _is_ terrific
 
 	// SonarLint: "clone" should not be overridden (java:S2975)
 	// And I wouldn't have done that if only CharacterIterator had not required

src/main/java/ru/windcorp/jputil/chars/IndentedStringBuilder.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 public class IndentedStringBuilder {

src/main/java/ru/windcorp/jputil/chars/StringUtil.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.io.IOException;
@@ -41,13 +41,8 @@ public class StringUtil {
 	private static final String EMPTY_PLACEHOLDER = "[empty]";
 	private static final String DEFAULT_SEPARATOR = "; ";
 
-	public static <T> String arrayToString(
-		T[] array,
-		String separator,
-		String empty,
-		String nullPlaceholder,
-		String nullArray
-	) {
+	public static <T> String arrayToString(T[] array, String separator, String empty, String nullPlaceholder,
+			String nullArray) {
 
 		if (separator == null) {
 			throw new IllegalArgumentException(new NullPointerException());
@@ -79,13 +74,8 @@ public class StringUtil {
 		return arrayToString(array, DEFAULT_SEPARATOR);
 	}
 
-	public static String iteratorToString(
-		Iterator<?> iterator,
-		String separator,
-		String empty,
-		String nullPlaceholder,
-		String nullIterator
-	) {
+	public static String iteratorToString(Iterator<?> iterator, String separator, String empty, String nullPlaceholder,
+			String nullIterator) {
 
 		if (separator == null) {
 			throw new IllegalArgumentException(new NullPointerException());
@@ -119,13 +109,8 @@ public class StringUtil {
 		return iteratorToString(iterator, DEFAULT_SEPARATOR);
 	}
 
-	public static String iterableToString(
-		Iterable<?> iterable,
-		String separator,
-		String empty,
-		String nullPlaceholder,
-		String nullIterable
-	) {
+	public static String iterableToString(Iterable<?> iterable, String separator, String empty, String nullPlaceholder,
+			String nullIterable) {
 
 		if (separator == null) {
 			throw new IllegalArgumentException(new NullPointerException());
@@ -146,14 +131,8 @@ public class StringUtil {
 		return iterableToString(iterable, DEFAULT_SEPARATOR);
 	}
 
-	public static <T> String supplierToString(
-		IntFunction<T> supplier,
-		int length,
-		String separator,
-		String empty,
-		String nullPlaceholder,
-		String nullSupplier
-	) {
+	public static <T> String supplierToString(IntFunction<T> supplier, int length, String separator, String empty,
+			String nullPlaceholder, String nullSupplier) {
 
 		if (separator == null)
 			throw new IllegalArgumentException(new NullPointerException());
@@ -163,28 +142,15 @@ public class StringUtil {
 			return empty;
 
 		if (length > 0) {
-			return supplierToStringExactly(
-				supplier,
-				length,
-				separator,
-				nullPlaceholder
-			);
+			return supplierToStringExactly(supplier, length, separator, nullPlaceholder);
 		} else {
-			return supplierToStringUntilNull(
-				supplier,
-				separator,
-				empty
-			);
+			return supplierToStringUntilNull(supplier, separator, empty);
 		}
 
 	}
 
-	private static <T> String supplierToStringExactly(
-		IntFunction<T> supplier,
-		int length,
-		String separator,
-		String nullPlaceholder
-	) {
+	private static <T> String supplierToStringExactly(IntFunction<T> supplier, int length, String separator,
+			String nullPlaceholder) {
 		T element = supplier.apply(0);
 
 		StringBuilder sb = new StringBuilder(element == null ? nullPlaceholder : element.toString());
@@ -198,11 +164,7 @@ public class StringUtil {
 		return sb.toString();
 	}
 
-	private static <T> String supplierToStringUntilNull(
-		IntFunction<T> supplier,
-		String separator,
-		String empty
-	) {
+	private static <T> String supplierToStringUntilNull(IntFunction<T> supplier, String separator, String empty) {
 		T element = supplier.apply(0);
 
 		if (element == null) {
@@ -366,11 +328,7 @@ public class StringUtil {
 		StringBuilder sb = new StringBuilder();
 
 		charLoop: for (char c : src.toCharArray()) {
-			if (
-				(resultIndex + 1) < arrayLength
-					&&
-					test.test(c)
-			) {
+			if ((resultIndex + 1) < arrayLength && test.test(c)) {
 				result[resultIndex] = resetStringBuilder(sb);
 				++resultIndex;
 				continue charLoop;
@@ -389,17 +347,17 @@ public class StringUtil {
 	 * index.
 	 * <p>
 	 * Indices {@code 0} and {@code src.length() - 1} produce {@code str}
-	 * excluding
-	 * the specified character and {@code ""}.
+	 * excluding the specified character and {@code ""}.
 	 * <p>
 	 * 
-	 * @param src the String to split
-	 * @param at  index to split at
-	 * @throws IllegalArgumentException if the index is out of bounds for
-	 *                                  {@code src}
+	 * @param src
+	 *            the String to split
+	 * @param at
+	 *            index to split at
+	 * @throws IllegalArgumentException
+	 *             if the index is out of bounds for {@code src}
 	 * @return an array containing the substrings, in order of encounter in
-	 *         {@code src}.
-	 *         Its length is always 2.
+	 *         {@code src}. Its length is always 2.
 	 */
 	public static String[] splitAt(String src, int at) {
 		Objects.requireNonNull(src, "src");
@@ -416,10 +374,7 @@ public class StringUtil {
 			return new String[] { src.substring(0, src.length() - 1), "" };
 		}
 
-		return new String[] {
-			src.substring(0, at),
-			src.substring(at + 1)
-		};
+		return new String[] { src.substring(0, at), src.substring(at + 1) };
 	}
 
 	/**
@@ -427,8 +382,7 @@ public class StringUtil {
 	 * indices.
 	 * <p>
 	 * Indices {@code 0} and {@code src.length() - 1} produce extra zero-length
-	 * outputs.
-	 * Duplicate indices produce extra zero-length outputs.
+	 * outputs. Duplicate indices produce extra zero-length outputs.
 	 * <p>
 	 * Examples:
 	 * 
@@ -439,13 +393,14 @@ public class StringUtil {
 	 * splitAt("a.b",   1, 1, 1) -> {"a", "", "", "b"}
 	 * </pre>
 	 * 
-	 * @param src the String to split
-	 * @param at  indices to split at, in any order
-	 * @throws IllegalArgumentException if some index is out of bounds for
-	 *                                  {@code src}
+	 * @param src
+	 *            the String to split
+	 * @param at
+	 *            indices to split at, in any order
+	 * @throws IllegalArgumentException
+	 *             if some index is out of bounds for {@code src}
 	 * @return an array containing the substrings, in order of encounter in
-	 *         {@code src}.
-	 *         Its length is always {@code at.length + 1}.
+	 *         {@code src}. Its length is always {@code at.length + 1}.
 	 */
 	public static String[] splitAt(String src, int... at) {
 		Objects.requireNonNull(src, "src");
@@ -553,10 +508,8 @@ public class StringUtil {
 		}
 
 		if (endPos < beginPos) {
-			throw new IllegalArgumentException(
-				"endPos must be greater than or equal to beginPos (endPos="
-					+ endPos + ", beginPos=" + beginPos + ")"
-			);
+			throw new IllegalArgumentException("endPos must be greater than or equal to beginPos (endPos=" + endPos
+					+ ", beginPos=" + beginPos + ")");
 		}
 
 		if (endPos >= Math.min(a.length, b.length)) {
@@ -592,8 +545,7 @@ public class StringUtil {
 
 	/**
 	 * Finds and returns the index of the specified appearance of the specified
-	 * character
-	 * in the given array. The search starts at index 0.
+	 * character in the given array. The search starts at index 0.
 	 * <p>
 	 * Examples:
 	 * <p>
@@ -630,10 +582,12 @@ public class StringUtil {
 	 * </tr>
 	 * </table>
 	 * 
-	 * @param src    - the array to search in.
-	 * @param target - the character to search for.
-	 * @param skip   - the amount of <code>target</code> characters to be
-	 *               skipped.
+	 * @param src
+	 *            - the array to search in.
+	 * @param target
+	 *            - the character to search for.
+	 * @param skip
+	 *            - the amount of <code>target</code> characters to be skipped.
 	 * @return The index of the <code>skip+1</code>th <code>target</code>
 	 *         character or -1, if none found.
 	 * @see StringUtil#indexFromEnd(char[], char, int)
@@ -653,8 +607,7 @@ public class StringUtil {
 
 	/**
 	 * Finds and returns the index of the specified appearance of the specified
-	 * character
-	 * in the given array. The search starts at index
+	 * character in the given array. The search starts at index
 	 * <code>src.length - 1</code>.
 	 * <p>
 	 * Examples:
@@ -692,13 +645,15 @@ public class StringUtil {
 	 * </tr>
 	 * </table>
 	 * 
-	 * @param src    - the array to search in.
-	 * @param target - the character to search for.
-	 * @param skip   - the amount of <code>target</code> characters to be
-	 *               skipped.
+	 * @param src
+	 *            - the array to search in.
+	 * @param target
+	 *            - the character to search for.
+	 * @param skip
+	 *            - the amount of <code>target</code> characters to be skipped.
 	 * @return The index of the <code>skip+1</code>th
-	 *         <code>target</code>character
-	 *         from the end of the array or -1, if none found.
+	 *         <code>target</code>character from the end of the array or -1, if
+	 *         none found.
 	 * @see StringUtil#indexFromBeginning(char[], char, int)
 	 */
 	public static int indexFromEnd(char[] src, char target, int skip) {
@@ -873,12 +828,8 @@ public class StringUtil {
 		return result;
 	}
 
-	private static void buildCombinations(
-		StringBuilder sb,
-		Collection<String> result,
-		Iterable<String>[] parts,
-		int index
-	) {
+	private static void buildCombinations(StringBuilder sb, Collection<String> result, Iterable<String>[] parts,
+			int index) {
 		if (index >= parts.length) {
 			result.add(sb.toString());
 		} else {
@@ -904,13 +855,8 @@ public class StringUtil {
 		return result;
 	}
 
-	private static void buildCombinations(
-		StringBuilder sb,
-		String[] result,
-		int[] resultIndex,
-		String[][] parts,
-		int index
-	) {
+	private static void buildCombinations(StringBuilder sb, String[] result, int[] resultIndex, String[][] parts,
+			int index) {
 		if (index >= parts.length) {
 			result[resultIndex[0]++] = sb.toString();
 		} else {
@@ -985,10 +931,7 @@ public class StringUtil {
 	}
 
 	private static char hexDigit(long value, int digit) {
-		return hexDigit(
-			(int) (value >>> (4 * digit))
-				& 0xF
-		);
+		return hexDigit((int) (value >>> (4 * digit)) & 0xF);
 	}
 
 	public static char hexDigit(int value) {

src/main/java/ru/windcorp/jputil/chars/UncheckedEscapeException.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 public class UncheckedEscapeException extends RuntimeException {

src/main/java/ru/windcorp/jputil/chars/WordReader.java

@@ -15,7 +15,7 @@
  * 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.chars;
 
 import java.io.IOException;

src/main/java/ru/windcorp/jputil/chars/reader/AbstractCharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 /**
@@ -27,10 +27,9 @@ public abstract class AbstractCharReader implements CharReader {
 
 	/**
 	 * Current position of this CharReader. The reader maps its input to
-	 * positions starting from 0.
-	 * Positions that are negative or lower than 0 are invalid.
-	 * {@link #current()}
-	 * will throw an exception if position is invalid.
+	 * positions starting from 0. Positions that are negative or lower than 0
+	 * are invalid. {@link #current()} will throw an exception if position is
+	 * invalid.
 	 */
 	protected int position = 0;
 

src/main/java/ru/windcorp/jputil/chars/reader/ArrayCharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 import java.util.Objects;

src/main/java/ru/windcorp/jputil/chars/reader/BufferedCharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 /**
@@ -51,9 +51,12 @@ public abstract class BufferedCharReader extends AbstractCharReader {
 	/**
 	 * Acquires next characters and stores them in the array.
 	 * 
-	 * @param buffer the output array
-	 * @param offset index of the first character
-	 * @param length maximum amount of characters to be pulled
+	 * @param buffer
+	 *            the output array
+	 * @param offset
+	 *            index of the first character
+	 * @param length
+	 *            maximum amount of characters to be pulled
 	 * @return the amount of characters actually pulled
 	 */
 	protected int pullChars(char[] buffer, int offset, int length) {

src/main/java/ru/windcorp/jputil/chars/reader/CharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 import java.io.IOException;
@@ -30,7 +30,7 @@ import ru.windcorp.jputil.chars.Escaper;
  */
 
 // SonarLint: Constants should not be defined in interfaces (java:S1214)
-//   DONE is an essential part of the interface
+// DONE is an essential part of the interface
 @SuppressWarnings("squid:S1214")
 
 public interface CharReader {
@@ -179,8 +179,7 @@ public interface CharReader {
 
 	/**
 	 * Skips to the end of the current line. Both <code>"\n"</code>,
-	 * <code>"\r"</code>
-	 * and <code>"\r\n"</code> are considered line separators.
+	 * <code>"\r"</code> and <code>"\r\n"</code> are considered line separators.
 	 * 
 	 * @return the amount of characters in the skipped line
 	 */

src/main/java/ru/windcorp/jputil/chars/reader/CharReaders.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 import java.io.InputStream;

src/main/java/ru/windcorp/jputil/chars/reader/ReaderCharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 import java.io.IOException;

src/main/java/ru/windcorp/jputil/chars/reader/StringCharReader.java

@@ -15,7 +15,7 @@
  * 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.chars.reader;
 
 import java.util.Objects;
@@ -38,8 +38,7 @@ public class StringCharReader extends AbstractCharReader {
 		int end = offset + length;
 		if (end > str.length() || offset < 0)
 			throw new IllegalArgumentException(
-				"String contains [0; " + str.length() + "), requested [" + offset + "; " + end + ")"
-			);
+					"String contains [0; " + str.length() + "), requested [" + offset + "; " + end + ")");
 
 		this.offset = offset;
 		this.length = length;

src/main/java/ru/windcorp/jputil/functions/FloatSupplier.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 @FunctionalInterface

src/main/java/ru/windcorp/jputil/functions/ThrowingBiConsumer.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 import java.util.function.BiConsumer;
@@ -44,9 +44,16 @@ public interface ThrowingBiConsumer<T, U, E extends Exception> {
 	}
 
 	public static <T, U, E extends Exception> ThrowingBiConsumer<T, U, E> concat(
-		ThrowingBiConsumer<? super T, ? super U, ? extends E> first,
-		ThrowingBiConsumer<? super T, ? super U, ? extends E> second
-	) {
+			ThrowingBiConsumer<? super T, ? super U, ? extends E> first,
+			ThrowingBiConsumer<? super T, ? super U, ? extends E> second) {
+		return (t, u) -> {
+			first.accept(t, u);
+			second.accept(t, u);
+		};
+	}
+
+	public static <T, U, E extends Exception> ThrowingBiConsumer<T, U, E> concat(BiConsumer<? super T, ? super U> first,
+			ThrowingBiConsumer<? super T, ? super U, E> second) {
 		return (t, u) -> {
 			first.accept(t, u);
 			second.accept(t, u);
@@ -54,19 +61,7 @@ public interface ThrowingBiConsumer<T, U, E extends Exception> {
 	}
 
 	public static <T, U, E extends Exception> ThrowingBiConsumer<T, U, E> concat(
-		BiConsumer<? super T, ? super U> first,
-		ThrowingBiConsumer<? super T, ? super U, E> second
-	) {
-		return (t, u) -> {
-			first.accept(t, u);
-			second.accept(t, u);
-		};
-	}
-
-	public static <T, U, E extends Exception> ThrowingBiConsumer<T, U, E> concat(
-		ThrowingBiConsumer<? super T, ? super U, E> first,
-		BiConsumer<? super T, ? super U> second
-	) {
+			ThrowingBiConsumer<? super T, ? super U, E> first, BiConsumer<? super T, ? super U> second) {
 		return (t, u) -> {
 			first.accept(t, u);
 			second.accept(t, u);

src/main/java/ru/windcorp/jputil/functions/ThrowingConsumer.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 import java.util.function.BiConsumer;
@@ -39,30 +39,24 @@ public interface ThrowingConsumer<T, E extends Exception> {
 		};
 	}
 
-	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(
-		ThrowingConsumer<? super T, ? extends E> first,
-		ThrowingConsumer<? super T, ? extends E> second
-	) {
+	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(ThrowingConsumer<? super T, ? extends E> first,
+			ThrowingConsumer<? super T, ? extends E> second) {
 		return t -> {
 			first.accept(t);
 			second.accept(t);
 		};
 	}
 
-	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(
-		Consumer<? super T> first,
-		ThrowingConsumer<? super T, ? extends E> second
-	) {
+	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(Consumer<? super T> first,
+			ThrowingConsumer<? super T, ? extends E> second) {
 		return t -> {
 			first.accept(t);
 			second.accept(t);
 		};
 	}
 
-	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(
-		ThrowingConsumer<? super T, ? extends E> first,
-		Consumer<? super T> second
-	) {
+	public static <T, E extends Exception> ThrowingConsumer<T, E> concat(ThrowingConsumer<? super T, ? extends E> first,
+			Consumer<? super T> second) {
 		return t -> {
 			first.accept(t);
 			second.accept(t);

src/main/java/ru/windcorp/jputil/functions/ThrowingFunction.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 import java.util.function.BiConsumer;
@@ -28,10 +28,8 @@ public interface ThrowingFunction<T, R, E extends Exception> {
 	R apply(T t) throws E;
 
 	@SuppressWarnings("unchecked")
-	default Function<T, R> withHandler(
-		BiConsumer<? super T, ? super E> handler,
-		Function<? super T, ? extends R> value
-	) {
+	default Function<T, R> withHandler(BiConsumer<? super T, ? super E> handler,
+			Function<? super T, ? extends R> value) {
 		return t -> {
 			try {
 				return apply(t);
@@ -58,23 +56,18 @@ public interface ThrowingFunction<T, R, E extends Exception> {
 	}
 
 	public static <T, R, I, E extends Exception> ThrowingFunction<T, R, E> compose(
-		ThrowingFunction<? super T, I, ? extends E> first,
-		ThrowingFunction<? super I, ? extends R, ? extends E> second
-	) {
+			ThrowingFunction<? super T, I, ? extends E> first,
+			ThrowingFunction<? super I, ? extends R, ? extends E> second) {
+		return t -> second.apply(first.apply(t));
+	}
+
+	public static <T, R, I, E extends Exception> ThrowingFunction<T, R, E> compose(Function<? super T, I> first,
+			ThrowingFunction<? super I, ? extends R, E> second) {
 		return t -> second.apply(first.apply(t));
 	}
 
 	public static <T, R, I, E extends Exception> ThrowingFunction<T, R, E> compose(
-		Function<? super T, I> first,
-		ThrowingFunction<? super I, ? extends R, E> second
-	) {
-		return t -> second.apply(first.apply(t));
-	}
-
-	public static <T, R, I, E extends Exception> ThrowingFunction<T, R, E> compose(
-		ThrowingFunction<? super T, I, E> first,
-		Function<? super I, ? extends R> second
-	) {
+			ThrowingFunction<? super T, I, E> first, Function<? super I, ? extends R> second) {
 		return t -> second.apply(first.apply(t));
 	}
 

src/main/java/ru/windcorp/jputil/functions/ThrowingRunnable.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 import java.util.function.Consumer;
@@ -38,10 +38,8 @@ public interface ThrowingRunnable<E extends Exception> {
 		};
 	}
 
-	public static <E extends Exception> ThrowingRunnable<E> concat(
-		ThrowingRunnable<? extends E> first,
-		ThrowingRunnable<? extends E> second
-	) {
+	public static <E extends Exception> ThrowingRunnable<E> concat(ThrowingRunnable<? extends E> first,
+			ThrowingRunnable<? extends E> second) {
 		return () -> {
 			first.run();
 			second.run();

src/main/java/ru/windcorp/jputil/functions/ThrowingSupplier.java

@@ -15,7 +15,7 @@
  * 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.functions;
 
 import java.util.function.Consumer;

src/main/java/ru/windcorp/jputil/iterators/ArrayIterator.java

@@ -15,7 +15,7 @@
  * 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.iterators;
 
 import java.util.Iterator;

src/main/java/ru/windcorp/jputil/iterators/FunctionIterator.java

@@ -15,7 +15,7 @@
  * 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.iterators;
 
 import java.util.Iterator;

src/main/java/ru/windcorp/jputil/iterators/PeekingIterator.java

@@ -15,7 +15,7 @@
  * 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.iterators;
 
 import java.util.Iterator;

src/main/java/ru/windcorp/jputil/iterators/RangeIterator.java

@@ -15,7 +15,7 @@
  * 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.iterators;
 
 import java.util.Iterator;
@@ -49,10 +49,8 @@ public class RangeIterator<E> implements Iterator<E> {
 	public E next() {
 		update();
 		if (nextIndex >= from + amount) {
-			throw new NoSuchElementException(
-				"RangeIterator about to retrieve element " + nextIndex
-					+ " which exceeds upper boundary " + (from + amount)
-			);
+			throw new NoSuchElementException("RangeIterator about to retrieve element " + nextIndex
+					+ " which exceeds upper boundary " + (from + amount));
 		}
 
 		E result = parent.next();

src/main/java/ru/windcorp/jputil/iterators/Reiterator.java

@@ -15,7 +15,7 @@
  * 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.iterators;
 
 import java.util.ArrayList;

src/main/java/ru/windcorp/jputil/selectors/AbstractSelectorOperator.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 public abstract class AbstractSelectorOperator implements SelectorOperator {

src/main/java/ru/windcorp/jputil/selectors/NamedParameterizedSelector.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import ru.windcorp.jputil.SyntaxException;

src/main/java/ru/windcorp/jputil/selectors/NamedSelector.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import ru.windcorp.jputil.SyntaxException;

src/main/java/ru/windcorp/jputil/selectors/OperatorAnd.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/OperatorExclude.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/OperatorNot.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/OperatorOr.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/OperatorXor.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/PredicateWrapper.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.function.Predicate;

src/main/java/ru/windcorp/jputil/selectors/Selector.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.function.Predicate;

src/main/java/ru/windcorp/jputil/selectors/SelectorOperator.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.Deque;

src/main/java/ru/windcorp/jputil/selectors/SelectorSystem.java

@@ -15,7 +15,7 @@
  * 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.selectors;
 
 import java.util.ArrayList;
@@ -37,7 +37,7 @@ public class SelectorSystem<T> {
 	private final Collection<Selector<T>> selectors = Collections.synchronizedCollection(new ArrayList<Selector<T>>());
 
 	private final Collection<SelectorOperator> operators = Collections
-		.synchronizedCollection(new ArrayList<SelectorOperator>());
+			.synchronizedCollection(new ArrayList<SelectorOperator>());
 
 	private String stackPrefix = null;
 

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

@@ -15,7 +15,7 @@
  * 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;
 
 public class Progressia {

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

@@ -15,7 +15,7 @@
  * 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;
 
 import ru.windcorp.progressia.common.util.crash.CrashReports;

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

@@ -15,7 +15,7 @@
  * 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;
 
 public interface Proxy {

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

@@ -15,7 +15,7 @@
  * 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;
 
 import ru.windcorp.progressia.client.comms.DefaultClientCommsListener;
@@ -24,7 +24,7 @@ import ru.windcorp.progressia.client.graphics.world.Camera;
 import ru.windcorp.progressia.client.graphics.world.EntityAnchor;
 import ru.windcorp.progressia.client.graphics.world.LocalPlayer;
 import ru.windcorp.progressia.client.world.WorldRender;
-import ru.windcorp.progressia.common.world.WorldData;
+import ru.windcorp.progressia.common.world.DefaultWorldData;
 import ru.windcorp.progressia.common.world.entity.EntityData;
 
 public class Client {
@@ -36,7 +36,7 @@ public class Client {
 
 	private final ServerCommsChannel comms;
 
-	public Client(WorldData world, ServerCommsChannel comms) {
+	public Client(DefaultWorldData world, ServerCommsChannel comms) {
 		this.world = new WorldRender(world, this);
 		this.comms = comms;
 
@@ -69,11 +69,7 @@ public class Client {
 			return;
 		}
 
-		getCamera().setAnchor(
-			new EntityAnchor(
-				getWorld().getEntityRenderable(entity)
-			)
-		);
+		getCamera().setAnchor(new EntityAnchor(getWorld().getEntityRenderable(entity)));
 	}
 
 }

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

@@ -15,7 +15,7 @@
  * 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;
 
 import ru.windcorp.progressia.Proxy;
@@ -42,10 +42,8 @@ public class ClientProxy implements Proxy {
 		try {
 			RenderTaskQueue.waitAndInvoke(FlatRenderProgram::init);
 			RenderTaskQueue.waitAndInvoke(WorldRenderProgram::init);
-			RenderTaskQueue.waitAndInvoke(
-				() -> Typefaces
-					.setDefault(GNUUnifontLoader.load(ResourceManager.getResource("assets/unifont-13.0.03.hex.gz")))
-			);
+			RenderTaskQueue.waitAndInvoke(() -> Typefaces
+					.setDefault(GNUUnifontLoader.load(ResourceManager.getResource("assets/unifont-13.0.03.hex.gz"))));
 		} catch (InterruptedException e) {
 			throw CrashReports.report(e, "ClientProxy failed");
 		}
@@ -60,7 +58,7 @@ public class ClientProxy implements Proxy {
 
 		ServerState.startServer();
 		ClientState.connectToLocalServer();
-		
+
 		TestMusicPlayer.start();
 	}
 

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

@@ -15,13 +15,13 @@
  * 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;
 
 import ru.windcorp.progressia.client.comms.localhost.LocalServerCommsChannel;
 import ru.windcorp.progressia.client.graphics.GUI;
 import ru.windcorp.progressia.client.graphics.world.LayerWorld;
-import ru.windcorp.progressia.common.world.WorldData;
+import ru.windcorp.progressia.common.world.DefaultWorldData;
 import ru.windcorp.progressia.server.ServerState;
 import ru.windcorp.progressia.test.LayerAbout;
 import ru.windcorp.progressia.test.LayerTestUI;
@@ -41,11 +41,9 @@ public class ClientState {
 
 	public static void connectToLocalServer() {
 
-		WorldData world = new WorldData();
+		DefaultWorldData world = new DefaultWorldData();
 
-		LocalServerCommsChannel channel = new LocalServerCommsChannel(
-			ServerState.getInstance()
-		);
+		LocalServerCommsChannel channel = new LocalServerCommsChannel(ServerState.getInstance());
 
 		Client client = new Client(world, channel);
 

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

@@ -15,7 +15,7 @@
  * 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;
 
 import ru.windcorp.progressia.ProgressiaLauncher;

src/main/java/ru/windcorp/progressia/client/audio/AudioFormat.java

@@ -15,7 +15,7 @@
  * 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.audio;
 
 public enum AudioFormat {

src/main/java/ru/windcorp/progressia/client/audio/AudioManager.java

@@ -15,7 +15,7 @@
  * 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.audio;
 
 import org.lwjgl.openal.*;
@@ -43,10 +43,7 @@ public class AudioManager {
 	private static Speaker musicSpeaker;
 
 	public static void initAL() {
-		String defaultDeviceName = alcGetString(
-			0,
-			ALC_DEFAULT_DEVICE_SPECIFIER
-		);
+		String defaultDeviceName = alcGetString(0, ALC_DEFAULT_DEVICE_SPECIFIER);
 
 		device = alcOpenDevice(defaultDeviceName);
 
@@ -75,10 +72,7 @@ public class AudioManager {
 				lastSoundIndex = 0;
 			}
 			speaker = soundSpeakers.get(lastSoundIndex);
-		} while (
-			speaker.getState()
-				.equals(Speaker.State.PLAYING_LOOP)
-		);
+		} while (speaker.getState().equals(Speaker.State.PLAYING_LOOP));
 		return speaker;
 	}
 

src/main/java/ru/windcorp/progressia/client/audio/AudioRegistry.java

@@ -21,9 +21,9 @@ import ru.windcorp.progressia.client.audio.backend.SoundType;
 import ru.windcorp.progressia.common.util.namespaces.NamespacedInstanceRegistry;
 
 public class AudioRegistry extends NamespacedInstanceRegistry<SoundType> {
-	
+
 	private static final AudioRegistry INSTANCE = new AudioRegistry();
-	
+
 	/**
 	 * @return the instance
 	 */

src/main/java/ru/windcorp/progressia/client/audio/AudioSystem.java

@@ -15,7 +15,7 @@
  * 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.audio;
 
 import ru.windcorp.progressia.common.resource.ResourceManager;
@@ -29,10 +29,7 @@ public class AudioSystem {
 	}
 
 	static void loadAudioData() {
-		AudioManager.loadSound(
-			ResourceManager.getResource("assets/sounds/block_destroy_clap.ogg"),
-			"Progressia:BlockDestroy",
-			AudioFormat.MONO
-		);
+		AudioManager.loadSound(ResourceManager.getResource("assets/sounds/block_destroy_clap.ogg"),
+				"Progressia:BlockDestroy", AudioFormat.MONO);
 	}
 }

src/main/java/ru/windcorp/progressia/client/audio/Music.java

@@ -15,18 +15,15 @@
  * 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.audio;
 
 import glm.vec._3.Vec3;
 import ru.windcorp.progressia.client.audio.backend.SoundType;
 import ru.windcorp.progressia.client.audio.backend.Speaker;
 
-public class Music 
-	extends Sound {
-	
-	
-	
+public class Music extends Sound {
+
 	public Music(SoundType soundType, int timeLength, float pitch, float gain) {
 		super(soundType, timeLength, new Vec3(), new Vec3(), pitch, gain);
 	}
@@ -47,7 +44,7 @@ public class Music
 	protected Speaker initSpeaker() {
 		return AudioManager.initMusicSpeaker(soundType);
 	}
-	
+
 	@Override
 	public void setPosition(Vec3 position) {
 		throw new UnsupportedOperationException();

src/main/java/ru/windcorp/progressia/client/audio/Sound.java

@@ -15,7 +15,7 @@
  * 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.audio;
 
 import glm.vec._3.Vec3;
@@ -29,9 +29,9 @@ public class Sound {
 	protected float pitch = 1.0f;
 	protected float gain = 1.0f;
 	protected int timeLength = 0;
-	
+
 	protected SoundType soundType;
-	
+
 	public Sound(SoundType soundType) {
 		this.soundType = soundType;
 	}
@@ -39,37 +39,23 @@ public class Sound {
 	public Sound(String id) {
 		this(AudioRegistry.getInstance().get(id));
 	}
-	
-	public Sound(
-		String id,
-		int timeLength,
-		Vec3 position,
-		Vec3 velocity,
-		float pitch,
-		float gain
-	) {
+
+	public Sound(String id, int timeLength, Vec3 position, Vec3 velocity, float pitch, float gain) {
 		this(id);
 		this.position = position;
 		this.velocity = velocity;
 		this.pitch = pitch;
 		this.gain = gain;
 	}
-	
-	public Sound(
-		SoundType soundType,
-		int timeLength,
-		Vec3 position,
-		Vec3 velocity,
-		float pitch,
-		float gain
-	) {
+
+	public Sound(SoundType soundType, int timeLength, Vec3 position, Vec3 velocity, float pitch, float gain) {
 		this(soundType);
 		this.position = position;
 		this.velocity = velocity;
 		this.pitch = pitch;
 		this.gain = gain;
 	}
-	
+
 	protected Speaker initSpeaker() {
 		return AudioManager.initSpeaker(soundType);
 	}
@@ -119,7 +105,7 @@ public class Sound {
 	public float getPitch() {
 		return pitch;
 	}
-	
+
 	public double getDuration() {
 		return soundType.getDuration();
 	}

src/main/java/ru/windcorp/progressia/client/audio/backend/AudioReader.java

@@ -15,7 +15,7 @@
  * 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.audio.backend;
 
 import org.lwjgl.BufferUtils;
@@ -39,12 +39,7 @@ public class AudioReader {
 
 		ShortBuffer rawAudio = decodeVorbis(resource, channelBuffer, rateBuffer);
 
-		return new SoundType(
-			id,
-			rawAudio,
-			format,
-			rateBuffer.get(0)
-		);
+		return new SoundType(id, rawAudio, format, rateBuffer.get(0));
 	}
 
 	public static SoundType readAsMono(Resource resource, String id) {
@@ -55,15 +50,7 @@ public class AudioReader {
 		return readAsSpecified(resource, id, AL_FORMAT_STEREO16);
 	}
 
-	private static ShortBuffer decodeVorbis(
-		Resource dataToDecode,
-		IntBuffer channelsBuffer,
-		IntBuffer rateBuffer
-	) {
-		return stb_vorbis_decode_memory(
-			dataToDecode.readAsBytes(),
-			channelsBuffer,
-			rateBuffer
-		);
+	private static ShortBuffer decodeVorbis(Resource dataToDecode, IntBuffer channelsBuffer, IntBuffer rateBuffer) {
+		return stb_vorbis_decode_memory(dataToDecode.readAsBytes(), channelsBuffer, rateBuffer);
 	}
 }

src/main/java/ru/windcorp/progressia/client/audio/backend/Listener.java

@@ -15,7 +15,7 @@
  * 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.audio.backend;
 
 import glm.vec._3.Vec3;
@@ -55,9 +55,8 @@ public class Listener {
 		if (isInWorld) {
 
 			if (wasInWorld) {
-				velocity.set(camera.getLastAnchorPosition()).sub(position).div(
-					(float) GraphicsInterface.getFrameLength()
-				);
+				velocity.set(camera.getLastAnchorPosition()).sub(position)
+						.div((float) GraphicsInterface.getFrameLength());
 			} else {
 				// If !wasInWorld, previous position is nonsence. Assume 0.
 				velocity.set(0);
@@ -72,9 +71,9 @@ public class Listener {
 		}
 
 		/*
-		 * Only apply if there is a chance that params changed.
-		 * This can only happen if we are in world now (isInWorld) or we just
-		 * left world (wasInWorld, then we need to reset).
+		 * Only apply if there is a chance that params changed. This can only
+		 * happen if we are in world now (isInWorld) or we just left world
+		 * (wasInWorld, then we need to reset).
 		 */
 		if (isInWorld || wasInWorld) {
 			applyParams();
@@ -91,17 +90,7 @@ public class Listener {
 	private void applyParams() {
 		alListener3f(AL_POSITION, position.x, position.y, position.z);
 		alListener3f(AL_VELOCITY, velocity.x, velocity.y, velocity.z);
-		alListenerfv(
-			AL_ORIENTATION,
-			new float[] {
-				oriAt.x,
-				oriAt.y,
-				oriAt.z,
-				oriUp.x,
-				oriUp.y,
-				oriUp.z
-			}
-		);
+		alListenerfv(AL_ORIENTATION, new float[] { oriAt.x, oriAt.y, oriAt.z, oriUp.x, oriUp.y, oriUp.z });
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/audio/backend/SoundType.java

@@ -15,7 +15,7 @@
  * 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.audio.backend;
 
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;
@@ -34,12 +34,7 @@ public class SoundType extends Namespaced {
 	private int audioBuffer;
 	private double duration;
 
-	public SoundType(
-		String id,
-		ShortBuffer rawAudio,
-		int format,
-		int sampleRate
-	) {
+	public SoundType(String id, ShortBuffer rawAudio, int format, int sampleRate) {
 		super(id);
 		this.rawAudio = rawAudio;
 		this.sampleRate = sampleRate;
@@ -56,7 +51,7 @@ public class SoundType extends Namespaced {
 	public void initSpeaker(Speaker speaker) {
 		speaker.setAudioData(audioBuffer);
 	}
-	
+
 	public double getDuration() {
 		return duration;
 	}

src/main/java/ru/windcorp/progressia/client/audio/backend/Speaker.java

@@ -15,7 +15,7 @@
  * 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.audio.backend;
 
 import glm.vec._3.Vec3;
@@ -24,9 +24,7 @@ import static org.lwjgl.openal.AL11.*;
 public class Speaker {
 
 	public enum State {
-		NOT_PLAYING,
-		PLAYING,
-		PLAYING_LOOP
+		NOT_PLAYING, PLAYING, PLAYING_LOOP
 	}
 
 	// Buffers
@@ -49,13 +47,7 @@ public class Speaker {
 		setAudioData(audioData);
 	}
 
-	public Speaker(
-		int audioData,
-		Vec3 position,
-		Vec3 velocity,
-		float pitch,
-		float gain
-	) {
+	public Speaker(int audioData, Vec3 position, Vec3 velocity, float pitch, float gain) {
 		setAudioData(audioData);
 		setPosition(position);
 		setVelocity(velocity);
@@ -63,12 +55,7 @@ public class Speaker {
 		setGain(gain);
 	}
 
-	public Speaker(
-		Vec3 position,
-		Vec3 velocity,
-		float pitch,
-		float gain
-	) {
+	public Speaker(Vec3 position, Vec3 velocity, float pitch, float gain) {
 		setPosition(position);
 		setVelocity(velocity);
 		setPitch(pitch);

src/main/java/ru/windcorp/progressia/client/comms/DefaultClientCommsListener.java

@@ -15,7 +15,7 @@
  * 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.comms;
 
 import java.io.IOException;
@@ -39,9 +39,7 @@ public class DefaultClientCommsListener implements CommsListener {
 	@Override
 	public void onPacketReceived(Packet packet) {
 		if (packet instanceof PacketAffectWorld) {
-			((PacketAffectWorld) packet).apply(
-				getClient().getWorld().getData()
-			);
+			((PacketAffectWorld) packet).apply(getClient().getWorld().getData());
 		} else if (packet instanceof PacketSetLocalPlayer) {
 			setLocalPlayer((PacketSetLocalPlayer) packet);
 		}

src/main/java/ru/windcorp/progressia/client/comms/ServerCommsChannel.java

@@ -15,7 +15,7 @@
  * 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.comms;
 
 import ru.windcorp.progressia.common.comms.CommsChannel;

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import ru.windcorp.progressia.common.util.namespaces.Namespaced;

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import ru.windcorp.progressia.client.graphics.input.InputEvent;

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import java.util.function.BiConsumer;
@@ -33,17 +33,12 @@ public class ControlTriggerLambda extends ControlTriggerInputBased {
 	private final Predicate<InputEvent> predicate;
 	private final BiConsumer<InputEvent, ControlData> dataWriter;
 
-	public ControlTriggerLambda(
-		String id,
-		Predicate<InputEvent> predicate,
-		BiConsumer<InputEvent, ControlData> dataWriter
-	) {
+	public ControlTriggerLambda(String id, Predicate<InputEvent> predicate,
+			BiConsumer<InputEvent, ControlData> dataWriter) {
 		super(id);
 
-		this.packetId = NamespacedUtil.getId(
-			NamespacedUtil.getNamespace(id),
-			"ControlKeyPress" + NamespacedUtil.getName(id)
-		);
+		this.packetId = NamespacedUtil.getId(NamespacedUtil.getNamespace(id),
+				"ControlKeyPress" + NamespacedUtil.getName(id));
 
 		this.predicate = predicate;
 		this.dataWriter = dataWriter;
@@ -54,10 +49,7 @@ public class ControlTriggerLambda extends ControlTriggerInputBased {
 		if (!predicate.test(event))
 			return null;
 
-		PacketControl packet = new PacketControl(
-			packetId,
-			ControlDataRegistry.getInstance().create(getId())
-		);
+		PacketControl packet = new PacketControl(packetId, ControlDataRegistry.getInstance().create(getId()));
 
 		dataWriter.accept(event, packet.getControl());
 

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import java.util.function.Consumer;
@@ -29,11 +29,7 @@ public class ControlTriggerLocalLambda extends ControlTriggerInputBased {
 	private final Predicate<InputEvent> predicate;
 	private final Consumer<InputEvent> action;
 
-	public ControlTriggerLocalLambda(
-		String id,
-		Predicate<InputEvent> predicate,
-		Consumer<InputEvent> action
-	) {
+	public ControlTriggerLocalLambda(String id, Predicate<InputEvent> predicate, Consumer<InputEvent> action) {
 		super(id);
 
 		this.predicate = predicate;

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import ru.windcorp.progressia.common.util.namespaces.NamespacedInstanceRegistry;

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import java.util.function.BiConsumer;
@@ -27,122 +27,59 @@ import ru.windcorp.progressia.common.comms.controls.ControlData;
 
 public class ControlTriggers {
 
-	public static ControlTriggerInputBased of(
-		String id,
-		BiConsumer<InputEvent, ControlData> dataWriter,
-		Predicate<InputEvent> predicate
-	) {
+	public static ControlTriggerInputBased of(String id, BiConsumer<InputEvent, ControlData> dataWriter,
+			Predicate<InputEvent> predicate) {
 		return new ControlTriggerLambda(id, predicate, dataWriter);
 	}
 
-	public static ControlTriggerInputBased of(
-		String id,
-		Consumer<ControlData> dataWriter,
-		Predicate<InputEvent> predicate
-	) {
-		return of(
-			id,
-			(input, control) -> dataWriter.accept(control),
-			predicate
-		);
+	public static ControlTriggerInputBased of(String id, Consumer<ControlData> dataWriter,
+			Predicate<InputEvent> predicate) {
+		return of(id, (input, control) -> dataWriter.accept(control), predicate);
 	}
 
-	public static ControlTriggerInputBased of(
-		String id,
-		Predicate<InputEvent> predicate
-	) {
-		return of(
-			id,
-			(input, control) -> {
-			},
-			predicate
-		);
+	public static ControlTriggerInputBased of(String id, Predicate<InputEvent> predicate) {
+		return of(id, (input, control) -> {
+		}, predicate);
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased of(
-		String id,
-		Class<I> inputType,
-		BiConsumer<I, ControlData> dataWriter,
-		Predicate<I>... predicates
-	) {
-		return of(
-			id,
-			createCheckedDataWriter(inputType, dataWriter),
-			createCheckedCompoundPredicate(inputType, predicates)
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased of(String id, Class<I> inputType,
+			BiConsumer<I, ControlData> dataWriter, Predicate<I>... predicates) {
+		return of(id, createCheckedDataWriter(inputType, dataWriter),
+				createCheckedCompoundPredicate(inputType, predicates));
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased of(
-		String id,
-		Class<I> inputType,
-		Consumer<ControlData> dataWriter,
-		Predicate<I>... predicates
-	) {
-		return of(
-			id,
-			inputType,
-			(input, control) -> dataWriter.accept(control),
-			predicates
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased of(String id, Class<I> inputType,
+			Consumer<ControlData> dataWriter, Predicate<I>... predicates) {
+		return of(id, inputType, (input, control) -> dataWriter.accept(control), predicates);
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased of(
-		String id,
-		Class<I> inputType,
-		Predicate<I>... predicates
-	) {
-		return of(
-			id,
-			(input, control) -> {
-			},
-			createCheckedCompoundPredicate(inputType, predicates)
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased of(String id, Class<I> inputType,
+			Predicate<I>... predicates) {
+		return of(id, (input, control) -> {
+		}, createCheckedCompoundPredicate(inputType, predicates));
 	}
 
 	@SafeVarargs
-	public static ControlTriggerInputBased of(
-		String id,
-		BiConsumer<InputEvent, ControlData> dataWriter,
-		Predicate<InputEvent>... predicates
-	) {
-		return of(
-			id,
-			InputEvent.class,
-			dataWriter,
-			predicates
-		);
+	public static ControlTriggerInputBased of(String id, BiConsumer<InputEvent, ControlData> dataWriter,
+			Predicate<InputEvent>... predicates) {
+		return of(id, InputEvent.class, dataWriter, predicates);
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased of(
-		String id,
-		Consumer<ControlData> dataWriter,
-		Predicate<InputEvent>... predicates
-	) {
-		return of(
-			id,
-			(input, control) -> dataWriter.accept(control),
-			predicates
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased of(String id, Consumer<ControlData> dataWriter,
+			Predicate<InputEvent>... predicates) {
+		return of(id, (input, control) -> dataWriter.accept(control), predicates);
 	}
 
 	@SafeVarargs
-	public static ControlTriggerInputBased of(
-		String id,
-		Predicate<InputEvent>... predicates
-	) {
-		return of(
-			id,
-			InputEvent.class,
-			(input, control) -> {
-			},
-			predicates
-		);
+	public static ControlTriggerInputBased of(String id, Predicate<InputEvent>... predicates) {
+		return of(id, InputEvent.class, (input, control) -> {
+		}, predicates);
 	}
-	
+
 	//
 	//
 	///
@@ -156,101 +93,53 @@ public class ControlTriggers {
 	//
 	//
 	//
-	
-	public static ControlTriggerInputBased localOf(
-		String id,
-		Consumer<InputEvent> action,
-		Predicate<InputEvent> predicate
-	) {
+
+	public static ControlTriggerInputBased localOf(String id, Consumer<InputEvent> action,
+			Predicate<InputEvent> predicate) {
 		return new ControlTriggerLocalLambda(id, predicate, action);
 	}
 
-	public static ControlTriggerInputBased localOf(
-		String id,
-		Runnable action,
-		Predicate<InputEvent> predicate
-	) {
-		return localOf(
-			id,
-			input -> action.run(),
-			predicate
-		);
+	public static ControlTriggerInputBased localOf(String id, Runnable action, Predicate<InputEvent> predicate) {
+		return localOf(id, input -> action.run(), predicate);
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased localOf(
-		String id,
-		Class<I> inputType,
-		Consumer<I> action,
-		Predicate<I>... predicates
-	) {
-		return localOf(
-			id,
-			createCheckedAction(inputType, action),
-			createCheckedCompoundPredicate(inputType, predicates)
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased localOf(String id, Class<I> inputType,
+			Consumer<I> action, Predicate<I>... predicates) {
+		return localOf(id, createCheckedAction(inputType, action),
+				createCheckedCompoundPredicate(inputType, predicates));
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased localOf(
-		String id,
-		Class<I> inputType,
-		Runnable action,
-		Predicate<I>... predicates
-	) {
-		return localOf(
-			id,
-			inputType,
-			input -> action.run(),
-			predicates
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased localOf(String id, Class<I> inputType,
+			Runnable action, Predicate<I>... predicates) {
+		return localOf(id, inputType, input -> action.run(), predicates);
 	}
 
 	@SafeVarargs
-	public static ControlTriggerInputBased localOf(
-		String id,
-		Consumer<InputEvent> action,
-		Predicate<InputEvent>... predicates
-	) {
-		return localOf(
-			id,
-			InputEvent.class,
-			action,
-			predicates
-		);
+	public static ControlTriggerInputBased localOf(String id, Consumer<InputEvent> action,
+			Predicate<InputEvent>... predicates) {
+		return localOf(id, InputEvent.class, action, predicates);
 	}
 
 	@SafeVarargs
-	public static <I extends InputEvent> ControlTriggerInputBased localOf(
-		String id,
-		Runnable action,
-		Predicate<InputEvent>... predicates
-	) {
-		return of(
-			id,
-			input -> action.run(),
-			predicates
-		);
+	public static <I extends InputEvent> ControlTriggerInputBased localOf(String id, Runnable action,
+			Predicate<InputEvent>... predicates) {
+		return of(id, input -> action.run(), predicates);
 	}
 
 	private static <I extends InputEvent> BiConsumer<InputEvent, ControlData> createCheckedDataWriter(
-		Class<I> inputType,
-		BiConsumer<I, ControlData> dataWriter
-	) {
+			Class<I> inputType, BiConsumer<I, ControlData> dataWriter) {
 		return (inputEvent, control) -> dataWriter.accept(inputType.cast(inputEvent), control);
 	}
-	
-	private static <I extends InputEvent> Consumer<InputEvent> createCheckedAction(
-		Class<I> inputType,
-		Consumer<I> action
-	) {
+
+	private static <I extends InputEvent> Consumer<InputEvent> createCheckedAction(Class<I> inputType,
+			Consumer<I> action) {
 		return inputEvent -> action.accept(inputType.cast(inputEvent));
 	}
 
-	private static <I extends InputEvent> Predicate<InputEvent> createCheckedCompoundPredicate(
-		Class<I> inputType,
-		Predicate<I>[] predicates
-	) {
+	private static <I extends InputEvent> Predicate<InputEvent> createCheckedCompoundPredicate(Class<I> inputType,
+			Predicate<I>[] predicates) {
 		return new CompoundCastPredicate<>(inputType, predicates);
 	}
 

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

@@ -15,7 +15,7 @@
  * 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.comms.controls;
 
 import ru.windcorp.progressia.client.Client;
@@ -32,8 +32,7 @@ public class InputBasedControls {
 		this.client = client;
 
 		this.controls = ControlTriggerRegistry.getInstance().values().stream()
-			.filter(ControlTriggerInputBased.class::isInstance)
-			.toArray(ControlTriggerInputBased[]::new);
+				.filter(ControlTriggerInputBased.class::isInstance).toArray(ControlTriggerInputBased[]::new);
 	}
 
 	public void handleInput(Input input) {

src/main/java/ru/windcorp/progressia/client/comms/localhost/LocalClient.java

@@ -15,7 +15,7 @@
  * 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.comms.localhost;
 
 import java.io.IOException;

src/main/java/ru/windcorp/progressia/client/comms/localhost/LocalServerCommsChannel.java

@@ -15,7 +15,7 @@
  * 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.comms.localhost;
 
 import ru.windcorp.progressia.client.comms.ServerCommsChannel;
@@ -34,11 +34,7 @@ public class LocalServerCommsChannel extends ServerCommsChannel {
 	public void connect(String login) {
 		setState(State.CONNECTED);
 
-		this.localClient = new LocalClient(
-			server.getClientManager().grabClientId(),
-			login,
-			this
-		);
+		this.localClient = new LocalClient(server.getClientManager().grabClientId(), login, this);
 
 		server.getClientManager().addClient(localClient);
 	}

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

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

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

@@ -15,7 +15,7 @@
  * 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;
 
 import java.util.ArrayList;
@@ -24,6 +24,7 @@ import java.util.List;
 
 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;
@@ -42,7 +43,7 @@ public class GUI {
 	}
 
 	private static final List<LayerStackModification> MODIFICATION_QUEUE = Collections
-		.synchronizedList(new ArrayList<>());
+			.synchronizedList(new ArrayList<>());
 
 	private static class ModifiableInput extends Input {
 		@Override
@@ -57,15 +58,24 @@ public class GUI {
 	}
 
 	public static void addBottomLayer(Layer layer) {
-		modify(layers -> layers.add(layer));
+		modify(layers -> {
+			layers.add(layer);
+			layer.onAdded();
+		});
 	}
 
 	public static void addTopLayer(Layer layer) {
-		modify(layers -> layers.add(0, layer));
+		modify(layers -> {
+			layers.add(0, layer);
+			layer.onAdded();
+		});
 	}
 
 	public static void removeLayer(Layer layer) {
-		modify(layers -> layers.remove(layer));
+		modify(layers -> {
+			layers.remove(layer);
+			layer.onRemoved();
+		});
 	}
 
 	private static void modify(LayerStackModification mod) {
@@ -78,12 +88,33 @@ public class GUI {
 
 	public static void render() {
 		synchronized (LAYERS) {
-			MODIFICATION_QUEUE.forEach(action -> action.affect(LAYERS));
-			MODIFICATION_QUEUE.clear();
-
+			
+			if (!MODIFICATION_QUEUE.isEmpty()) {
+				MODIFICATION_QUEUE.forEach(action -> action.affect(LAYERS));
+				MODIFICATION_QUEUE.clear();
+				
+				boolean isMouseCurrentlyCaptured = GraphicsInterface.isMouseCaptured();
+				Layer.CursorPolicy policy = Layer.CursorPolicy.REQUIRE;
+				
+				for (Layer layer : LAYERS) {
+					Layer.CursorPolicy currentPolicy = layer.getCursorPolicy();
+					
+					if (currentPolicy != Layer.CursorPolicy.INDIFFERENT) {
+						policy = currentPolicy;
+						break;
+					}
+				}
+				
+				boolean shouldCaptureMouse = (policy == Layer.CursorPolicy.FORBID);
+				if (shouldCaptureMouse != isMouseCurrentlyCaptured) {
+					GraphicsInterface.setMouseCaptured(shouldCaptureMouse);
+				}
+			}
+			
 			for (int i = LAYERS.size() - 1; i >= 0; --i) {
 				LAYERS.get(i).render();
 			}
+			
 		}
 	}
 

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

@@ -15,7 +15,7 @@
  * 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;
 
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -30,15 +30,52 @@ public abstract class Layer {
 	private boolean hasInitialized = false;
 
 	private final AtomicBoolean isValid = new AtomicBoolean(false);
+	
+	/**
+	 * Represents various requests that a {@link Layer} can make regarding the
+	 * presence of a visible cursor. The value of the highest layer that is not
+	 * {@link #INDIFFERENT} is used.
+	 */
+	public static enum CursorPolicy {
+		/**
+		 * Require that a cursor is visible.
+		 */
+		REQUIRE,
+
+		/**
+		 * The {@link Layer} should not affect the presence or absence of a
+		 * visible cursor; lower layers should be consulted.
+		 */
+		INDIFFERENT,
+
+		/**
+		 * Forbid a visible cursor.
+		 */
+		FORBID
+	}
+	
+	private CursorPolicy cursorPolicy = CursorPolicy.INDIFFERENT;
 
 	public Layer(String name) {
 		this.name = name;
 	}
+	
+	public String getName() {
+		return name;
+	}
 
 	@Override
 	public String toString() {
 		return "Layer " + name;
 	}
+	
+	public CursorPolicy getCursorPolicy() {
+		return cursorPolicy;
+	}
+	
+	public void setCursorPolicy(CursorPolicy cursorPolicy) {
+		this.cursorPolicy = cursorPolicy;
+	}
 
 	void render() {
 		GraphicsInterface.startNextLayer();
@@ -78,5 +115,13 @@ public abstract class Layer {
 	protected int getHeight() {
 		return GraphicsInterface.getFrameHeight();
 	}
+	
+	protected void onAdded() {
+		// Do nothing
+	}
+	
+	protected void onRemoved() {
+		// Do nothing
+	}
 
 }

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

@@ -15,7 +15,7 @@
  * 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 java.util.ArrayDeque;

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

@@ -15,7 +15,7 @@
  * 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 glm.vec._2.i.Vec2i;
@@ -61,7 +61,7 @@ public class GraphicsBackend {
 	static void setOpenGLInitialized(boolean isOpenGLInitialized) {
 		GraphicsBackend.isOpenGLInitialized = isOpenGLInitialized;
 	}
-	
+
 	public static void initialize() {
 		startRenderThread();
 	}
@@ -159,27 +159,14 @@ public class GraphicsBackend {
 
 	public static void setFullscreen() {
 		GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
-		glfwSetWindowMonitor(
-			getWindowHandle(),
-			glfwGetPrimaryMonitor(),
-			0,
-			0,
-			vidmode.width(),
-			vidmode.height(),
-			0);
+		glfwSetWindowMonitor(getWindowHandle(), glfwGetPrimaryMonitor(), 0, 0, vidmode.width(), vidmode.height(), 0);
 		isFullscreen = true;
 	}
 
 	public static void setWindowed() {
 		GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
-		glfwSetWindowMonitor(
-			getWindowHandle(),
-			0,
-			(vidmode.width() - getFrameWidth()) / 2,
-			(vidmode.height() - getFrameHeight()) / 2,
-			getFrameWidth(),
-			getFrameHeight(),
-			0);
+		glfwSetWindowMonitor(getWindowHandle(), 0, (vidmode.width() - getFrameWidth()) / 2,
+				(vidmode.height() - getFrameHeight()) / 2, getFrameWidth(), getFrameHeight(), 0);
 		isFullscreen = false;
 	}
 
@@ -192,4 +179,18 @@ public class GraphicsBackend {
 		GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
 		return vidmode.refreshRate();
 	}
+	
+	public static boolean isMouseCaptured() {
+		return glfwGetInputMode(windowHandle, GLFW_CURSOR) == GLFW_CURSOR_DISABLED;
+	}
+	
+	public static void setMouseCaptured(boolean capture) {
+		int mode = capture ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_NORMAL;
+		glfwSetInputMode(windowHandle, GLFW_CURSOR, mode);
+		
+		if (!capture) {
+			glfwSetCursorPos(windowHandle, FRAME_SIZE.x / 2.0, FRAME_SIZE.y / 2.0);
+		}
+	}
+	
 }

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

@@ -15,7 +15,7 @@
  * 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 glm.vec._2.i.Vec2i;
@@ -81,5 +81,13 @@ public class GraphicsInterface {
 		}
 		GraphicsBackend.setVSyncEnabled(GraphicsBackend.isVSyncEnabled());
 	}
+	
+	public static boolean isMouseCaptured() {
+		return GraphicsBackend.isMouseCaptured();
+	}
+	
+	public static void setMouseCaptured(boolean capture) {
+		GraphicsBackend.setMouseCaptured(capture);
+	}
 
 }

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

@@ -15,7 +15,7 @@
  * 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;
@@ -49,13 +49,7 @@ public class InputHandler {
 
 	private static final ModifiableKeyEvent THE_KEY_EVENT = new ModifiableKeyEvent();
 
-	static void handleKeyInput(
-		long window,
-		int key,
-		int scancode,
-		int action,
-		int mods
-	) {
+	static void handleKeyInput(long window, int key, int scancode, int action, int mods) {
 		if (GraphicsBackend.getWindowHandle() != window)
 			return;
 		THE_KEY_EVENT.initialize(key, scancode, action, mods);
@@ -71,12 +65,7 @@ public class InputHandler {
 		}
 	}
 
-	static void handleMouseButtonInput(
-		long window,
-		int key,
-		int action,
-		int mods
-	) {
+	static void handleMouseButtonInput(long window, int key, int action, int mods) {
 		handleKeyInput(window, key, Integer.MAX_VALUE - key, action, mods);
 	}
 
@@ -97,11 +86,7 @@ public class InputHandler {
 
 	private static final ModifiableCursorMoveEvent THE_CURSOR_MOVE_EVENT = new ModifiableCursorMoveEvent();
 
-	static void handleMouseMoveInput(
-		long window,
-		double x,
-		double y
-	) {
+	static void handleMouseMoveInput(long window, double x, double y) {
 		if (GraphicsBackend.getWindowHandle() != window)
 			return;
 		y = GraphicsInterface.getFrameHeight() - y; // Flip y axis
@@ -131,11 +116,7 @@ public class InputHandler {
 
 	private static final ModifiableWheelScrollEvent THE_WHEEL_SCROLL_EVENT = new ModifiableWheelScrollEvent();
 
-	static void handleWheelScroll(
-		long window,
-		double xoffset,
-		double yoffset
-	) {
+	static void handleWheelScroll(long window, double xoffset, double yoffset) {
 		if (GraphicsBackend.getWindowHandle() != window)
 			return;
 		THE_WHEEL_SCROLL_EVENT.initialize(xoffset, yoffset);
@@ -162,10 +143,7 @@ public class InputHandler {
 	/*
 	 * NB: this is NOT a GLFW callback, the raw callback is in GraphicsBackend
 	 */
-	static void handleFrameResize(
-		int width,
-		int height
-	) {
+	static void handleFrameResize(int width, int height) {
 		THE_FRAME_RESIZE_EVENT.initialize(width, height);
 		dispatch(THE_FRAME_RESIZE_EVENT);
 	}

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

@@ -15,7 +15,7 @@
  * 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 glm.vec._2.d.Vec2d;
@@ -24,10 +24,7 @@ import gnu.trove.set.hash.TIntHashSet;
 
 public class InputTracker {
 
-	private static final Vec2d CURSOR_POSITION = new Vec2d(
-		Double.NaN,
-		Double.NaN
-	);
+	private static final Vec2d CURSOR_POSITION = new Vec2d(Double.NaN, Double.NaN);
 
 	private static final TIntSet PRESSED_KEYS = new TIntHashSet(256);
 

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

@@ -15,7 +15,7 @@
  * 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 static org.lwjgl.opengl.GL11.*;
@@ -65,10 +65,8 @@ class LWJGLInitializer {
 
 		GraphicsBackend.setWindowHandle(handle);
 
-		glfwSetInputMode(handle, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
-
 		glfwMakeContextCurrent(handle);
-		glfwSwapInterval(0);	// TODO: remove after config system is added
+		glfwSwapInterval(0); // TODO: remove after config system is added
 	}
 
 	private static void positionWindow() {
@@ -94,16 +92,10 @@ class LWJGLInitializer {
 	private static void setupWindowCallbacks() {
 		long handle = GraphicsBackend.getWindowHandle();
 
-		glfwSetFramebufferSizeCallback(
-			handle,
-			GraphicsBackend::onFrameResized
-		);
+		glfwSetFramebufferSizeCallback(handle, GraphicsBackend::onFrameResized);
 
 		glfwSetKeyCallback(handle, InputHandler::handleKeyInput);
-		glfwSetMouseButtonCallback(
-			handle,
-			InputHandler::handleMouseButtonInput
-		);
+		glfwSetMouseButtonCallback(handle, InputHandler::handleMouseButtonInput);
 
 		glfwSetCursorPosCallback(handle, InputHandler::handleMouseMoveInput);
 

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

@@ -15,7 +15,7 @@
  * 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 java.lang.ref.PhantomReference;
@@ -34,19 +34,13 @@ public class OpenGLObjectTracker {
 	private static final ReferenceQueue<OpenGLDeletable> DELETE_QUEUE = new ReferenceQueue<>();
 
 	public synchronized static void register(OpenGLDeletable object, IntConsumer glDeleter) {
-		GLPhantomReference<OpenGLDeletable> glRef = new GLPhantomReference<>(
-			object,
-			DELETE_QUEUE,
-			object.getHandle(),
-			glDeleter
-		);
+		GLPhantomReference<OpenGLDeletable> glRef = new GLPhantomReference<>(object, DELETE_QUEUE, object.getHandle(),
+				glDeleter);
 		TO_DELETE.add(glRef);
 	}
 
 	public static void deleteAllObjects() {
-		for (
-			GLPhantomReference<OpenGLDeletable> glRef : TO_DELETE
-		) {
+		for (GLPhantomReference<OpenGLDeletable> glRef : TO_DELETE) {
 			glRef.clear();
 		}
 	}
@@ -75,20 +69,16 @@ public class OpenGLObjectTracker {
 		 * It is possible to create a phantom reference with a {@code null}
 		 * queue, but such a reference is completely useless: Its {@code get}
 		 * method will always return {@code null} and, since it does not have a
-		 * queue,
-		 * it will never be enqueued.
+		 * queue, it will never be enqueued.
 		 *
-		 * @param referent the object the new phantom reference will refer to
-		 * @param q        the queue with which the reference is to be
-		 *                 registered,
-		 *                 or {@code null} if registration is not required
+		 * @param referent
+		 *            the object the new phantom reference will refer to
+		 * @param q
+		 *            the queue with which the reference is to be registered, or
+		 *            {@code null} if registration is not required
 		 */
-		public GLPhantomReference(
-			T referent,
-			ReferenceQueue<? super T> q,
-			int referentGLhandle,
-			IntConsumer GLDeleter
-		) {
+		public GLPhantomReference(T referent, ReferenceQueue<? super T> q, int referentGLhandle,
+				IntConsumer GLDeleter) {
 			super(referent, q);
 			this.referentGLhandle = referentGLhandle;
 			this.GLDeleter = GLDeleter;

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

@@ -15,7 +15,7 @@
  * 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 ru.windcorp.jputil.functions.ThrowingRunnable;
@@ -41,11 +41,7 @@ public class RenderTaskQueue {
 		HANDLER.invokeNow(task);
 	}
 
-	public static <E extends Exception> void waitAndInvoke(
-		ThrowingRunnable<E> task
-	)
-		throws InterruptedException,
-		E {
+	public static <E extends Exception> void waitAndInvoke(ThrowingRunnable<E> task) throws InterruptedException, E {
 		HANDLER.waitAndInvoke(task);
 	}
 

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

@@ -15,7 +15,7 @@
  * 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 static org.lwjgl.glfw.GLFW.*;

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

@@ -15,7 +15,7 @@
  * 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 static org.lwjgl.opengl.GL15.GL_DYNAMIC_DRAW;
@@ -23,9 +23,7 @@ import static org.lwjgl.opengl.GL15.GL_STATIC_DRAW;
 import static org.lwjgl.opengl.GL15.GL_STREAM_DRAW;
 
 public enum Usage { // TODO add _COPY and _READ, pref. as another enum
-	STATIC(GL_STATIC_DRAW),
-	DYNAMIC(GL_DYNAMIC_DRAW),
-	STREAM(GL_STREAM_DRAW);
+	STATIC(GL_STATIC_DRAW), DYNAMIC(GL_DYNAMIC_DRAW), STREAM(GL_STREAM_DRAW);
 
 	private final int glCode;
 

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

@@ -15,7 +15,7 @@
  * 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 static org.lwjgl.opengl.GL20.*;
@@ -28,8 +28,7 @@ import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker.OpenGL
 public class VertexBufferObject implements OpenGLDeletable {
 
 	public static enum BindTarget {
-		ARRAY(GL_ARRAY_BUFFER),
-		ELEMENT_ARRAY(GL_ELEMENT_ARRAY_BUFFER);
+		ARRAY(GL_ARRAY_BUFFER), ELEMENT_ARRAY(GL_ELEMENT_ARRAY_BUFFER);
 
 		private final int glCode;
 

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/CombinedShader.java

@@ -15,7 +15,7 @@
  * 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.shaders;
 
 import ru.windcorp.progressia.common.resource.Resource;
@@ -32,12 +32,7 @@ public class CombinedShader extends Shader {
 		for (int i = 1; i < resources.length; ++i) {
 			if (ShaderType.guessByResourceName(resources[i]) != first) {
 				throw new IllegalArgumentException(
-					"Deduced shader types of "
-						+ resources[0]
-						+ " and "
-						+ resources[i]
-						+ " differ"
-				);
+						"Deduced shader types of " + resources[0] + " and " + resources[i] + " differ");
 			}
 		}
 
@@ -71,19 +66,8 @@ public class CombinedShader extends Shader {
 			if (contents.codePointAt(versionIndex) == '#') {
 				final String versionAnnotation = "#version ";
 
-				if (
-					contents.regionMatches(
-						versionIndex,
-						versionAnnotation,
-						0,
-						versionAnnotation.length()
-					)
-				) {
-					contents = contents.substring(
-						versionIndex
-							+ versionAnnotation.length()
-							+ "120".length()
-					);
+				if (contents.regionMatches(versionIndex, versionAnnotation, 0, versionAnnotation.length())) {
+					contents = contents.substring(versionIndex + versionAnnotation.length() + "120".length());
 				}
 
 			}

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/Program.java

@@ -15,7 +15,7 @@
  * 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.shaders;
 
 import static org.lwjgl.opengl.GL11.*;

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/Shader.java

@@ -15,7 +15,7 @@
  * 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.shaders;
 
 import static org.lwjgl.opengl.GL11.*;
@@ -57,10 +57,7 @@ public class Shader implements OpenGLDeletable {
 			if (resource.contains("fsh"))
 				return FRAGMENT;
 
-			throw new IllegalArgumentException(
-				"Cannot deduce shader type from resource name \"" +
-					resource + "\""
-			);
+			throw new IllegalArgumentException("Cannot deduce shader type from resource name \"" + resource + "\"");
 		}
 	}
 
@@ -90,10 +87,7 @@ public class Shader implements OpenGLDeletable {
 	}
 
 	public Shader(String resource) {
-		this(
-			ShaderType.guessByResourceName(resource),
-			getShaderResource(resource).readAsString()
-		);
+		this(ShaderType.guessByResourceName(resource), getShaderResource(resource).readAsString());
 	}
 
 	@Override

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/attributes/Attribute.java

@@ -15,7 +15,7 @@
  * 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.shaders.attributes;
 
 import ru.windcorp.progressia.client.graphics.backend.shaders.Program;

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/attributes/AttributeVertexArray.java

@@ -15,7 +15,7 @@
  * 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.shaders.attributes;
 
 import static org.lwjgl.opengl.GL11.*;
@@ -51,104 +51,29 @@ public class AttributeVertexArray extends Attribute {
 		}
 	}
 
-	public void set(
-		int size,
-		boolean normalized,
-		int stride,
-		ByteBuffer pointer
-	) {
-		glVertexAttribPointer(
-			handle,
-			size,
-			GL_BYTE,
-			normalized,
-			stride,
-			pointer
-		);
+	public void set(int size, boolean normalized, int stride, ByteBuffer pointer) {
+		glVertexAttribPointer(handle, size, GL_BYTE, normalized, stride, pointer);
 	}
 
-	public void set(
-		int size,
-		boolean normalized,
-		int stride,
-		FloatBuffer pointer
-	) {
-		glVertexAttribPointer(
-			handle,
-			size,
-			GL_FLOAT,
-			normalized,
-			stride,
-			pointer
-		);
+	public void set(int size, boolean normalized, int stride, FloatBuffer pointer) {
+		glVertexAttribPointer(handle, size, GL_FLOAT, normalized, stride, pointer);
 	}
 
-	public void set(
-		int size,
-		boolean normalized,
-		int stride,
-		IntBuffer pointer
-	) {
-		glVertexAttribPointer(
-			handle,
-			size,
-			GL_INT,
-			normalized,
-			stride,
-			pointer
-		);
+	public void set(int size, boolean normalized, int stride, IntBuffer pointer) {
+		glVertexAttribPointer(handle, size, GL_INT, normalized, stride, pointer);
 	}
 
-	public void set(
-		int size,
-		boolean normalized,
-		int stride,
-		ShortBuffer pointer
-	) {
-		glVertexAttribPointer(
-			handle,
-			size,
-			GL_SHORT,
-			normalized,
-			stride,
-			pointer
-		);
+	public void set(int size, boolean normalized, int stride, ShortBuffer pointer) {
+		glVertexAttribPointer(handle, size, GL_SHORT, normalized, stride, pointer);
 	}
 
-	public void set(
-		int size,
-		int type,
-		boolean normalized,
-		int stride,
-		long pointer
-	) {
-		glVertexAttribPointer(
-			handle,
-			size,
-			type,
-			normalized,
-			stride,
-			pointer
-		);
+	public void set(int size, int type, boolean normalized, int stride, long pointer) {
+		glVertexAttribPointer(handle, size, type, normalized, stride, pointer);
 	}
 
-	public void set(
-		int size,
-		int type,
-		boolean normalized,
-		int stride,
-		VertexBufferObject vbo,
-		long offset
-	) {
+	public void set(int size, int type, boolean normalized, int stride, VertexBufferObject vbo, long offset) {
 		glBindBuffer(GL_ARRAY_BUFFER, vbo.getHandle());
-		glVertexAttribPointer(
-			handle,
-			size,
-			type,
-			normalized,
-			stride,
-			offset
-		);
+		glVertexAttribPointer(handle, size, type, normalized, stride, offset);
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/uniforms/Uniform.java

@@ -15,7 +15,7 @@
  * 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.shaders.uniforms;
 
 import ru.windcorp.progressia.client.graphics.backend.shaders.Program;

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/uniforms/Uniform1Float.java

@@ -15,7 +15,7 @@
  * 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.shaders.uniforms;
 
 import static org.lwjgl.opengl.GL20.*;

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/uniforms/Uniform1Int.java

@@ -15,7 +15,7 @@
  * 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.shaders.uniforms;
 
 import static org.lwjgl.opengl.GL20.*;

src/main/java/ru/windcorp/progressia/client/graphics/backend/shaders/uniforms/Uniform2Float.java

@@ -15,7 +15,7 @@
  * 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.shaders.uniforms;
 
 import static org.lwjgl.opengl.GL20.*;