Merge branch 'crashreports'

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

@@ -17,10 +17,23 @@
  *******************************************************************************/
 package ru.windcorp.progressia;
 
+import ru.windcorp.progressia.common.util.crash.CrashReports;
+import ru.windcorp.progressia.common.util.crash.analyzers.OutOfMemoryAnalyzer;
+import ru.windcorp.progressia.common.util.crash.providers.OSContextProvider;
+
 public class ProgressiaLauncher {
 
 	public static void launch(String[] args, Proxy proxy) {
+		setupCrashReports();
 		proxy.initialize();
 	}
 
+	private static void setupCrashReports() {
+		CrashReports.registerProvider(new OSContextProvider());
+		CrashReports.registerAnalyzer(new OutOfMemoryAnalyzer());
+		Thread.setDefaultUncaughtExceptionHandler((Thread thread, Throwable t)-> {
+			CrashReports.report(t,"Uncaught exception in thread %s", thread.getName());
+		});
+	}
+
 }

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

@@ -26,6 +26,7 @@ import ru.windcorp.progressia.client.graphics.font.Typefaces;
 import ru.windcorp.progressia.client.graphics.texture.Atlases;
 import ru.windcorp.progressia.client.graphics.world.WorldRenderProgram;
 import ru.windcorp.progressia.common.resource.ResourceManager;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 import ru.windcorp.progressia.server.ServerState;
 import ru.windcorp.progressia.test.TestContent;
 
@@ -39,8 +40,7 @@ public class ClientProxy implements Proxy {
 			RenderTaskQueue.waitAndInvoke(WorldRenderProgram::init);
 			RenderTaskQueue.waitAndInvoke(() -> Typefaces.setDefault(GNUUnifontLoader.load(ResourceManager.getResource("assets/unifont-13.0.03.hex.gz"))));
 		} catch (InterruptedException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
+			CrashReports.report(e, "ClientProxy failed");
 		}
 		
 		TestContent.registerContent();

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

@@ -30,5 +30,5 @@ public class ProgressiaClientMain {
 
 		ProgressiaLauncher.launch(args, new ClientProxy());
 	}
-	
-}
+
+}

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

@@ -1,6 +1,8 @@
 package ru.windcorp.progressia.client.comms;
 
 import java.io.IOException;
+
+import ru.windcorp.jputil.chars.StringUtil;
 import ru.windcorp.progressia.client.Client;
 import ru.windcorp.progressia.client.graphics.world.EntityAnchor;
 import ru.windcorp.progressia.client.world.ChunkRender;
@@ -8,12 +10,13 @@ import ru.windcorp.progressia.common.comms.CommsListener;
 import ru.windcorp.progressia.common.comms.packets.Packet;
 import ru.windcorp.progressia.common.comms.packets.PacketSetLocalPlayer;
 import ru.windcorp.progressia.common.comms.packets.PacketWorldChange;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 import ru.windcorp.progressia.common.world.entity.EntityData;
 import ru.windcorp.progressia.common.world.entity.PacketEntityChange;
 
 // TODO refactor with no mercy
 public class DefaultClientCommsListener implements CommsListener {
-	
+
 	private final Client client;
 
 	public DefaultClientCommsListener(Client client) {
@@ -41,9 +44,13 @@ public class DefaultClientCommsListener implements CommsListener {
 		);
 		
 		if (entity == null) {
-			throw new RuntimeException("");
+			CrashReports.report(
+					null,
+					"Player entity with ID %s not found",
+					new String(StringUtil.toFullHex(packet.getLocalPlayerEntityId()))
+			);
 		}
-		
+
 		getClient().setLocalPlayer(entity);
 		getClient().getCamera().setAnchor(new EntityAnchor(
 				getClient().getWorld().getEntityRenderable(entity)
@@ -58,7 +65,7 @@ public class DefaultClientCommsListener implements CommsListener {
 	public void onIOError(IOException reason) {
 		// TODO implement
 	}
-	
+
 	public Client getClient() {
 		return client;
 	}

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

@@ -24,37 +24,38 @@ import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker;
 import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker.OpenGLDeletable;
 import ru.windcorp.progressia.client.graphics.backend.shaders.attributes.Attribute;
 import ru.windcorp.progressia.client.graphics.backend.shaders.uniforms.Uniform;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Program implements OpenGLDeletable {
-	
+
 	private int handle;
-	
+
 	public Program(Shader vertexShader, Shader fragmentShader) {
 		handle = glCreateProgram();
 		OpenGLObjectTracker.register(this);
-		
+
 		glAttachShader(handle, vertexShader.getHandle());
 		glAttachShader(handle, fragmentShader.getHandle());
-		
+
 		glLinkProgram(handle);
-		
+
 		if (glGetProgrami(handle, GL_LINK_STATUS) == GL_FALSE) {
-			throw new RuntimeException("Bad program:\n" + glGetProgramInfoLog(handle));
+			CrashReports.report(null, "Bad program:\n%s", glGetProgramInfoLog(handle));
 		}
 	}
-	
+
 	public Attribute getAttribute(String name) {
 		return new Attribute(glGetAttribLocation(handle, name), this);
 	}
-	
+
 	public Uniform getUniform(String name) {
 		return new Uniform(glGetUniformLocation(handle, name), this);
 	}
-	
+
 	public void use() {
 		glUseProgram(handle);
 	}
-	
+
 	@Override
 	public void delete() {
 		glDeleteProgram(handle);

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

@@ -26,26 +26,26 @@ import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker;
 import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker.OpenGLDeletable;
 import ru.windcorp.progressia.common.resource.Resource;
 import ru.windcorp.progressia.common.resource.ResourceManager;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Shader implements OpenGLDeletable {
-	
+
 	public static enum ShaderType {
-		VERTEX(GL_VERTEX_SHADER),
-		FRAGMENT(GL_FRAGMENT_SHADER);
-		
+		VERTEX(GL_VERTEX_SHADER), FRAGMENT(GL_FRAGMENT_SHADER);
+
 		private final int glCode;
-		
+
 		private ShaderType(int glCode) {
 			this.glCode = glCode;
 		}
-		
+
 		public int getGlCode() {
 			return glCode;
 		}
-		
+
 		public static ShaderType guessByResourceName(String resource) {
 			resource = resource.toLowerCase(Locale.ENGLISH);
-			
+
 			if (resource.contains("vertex")) return VERTEX;
 			if (resource.contains("fragment")) return FRAGMENT;
 			if (resource.contains("vsh")) return VERTEX;
@@ -57,48 +57,48 @@ public class Shader implements OpenGLDeletable {
 			);
 		}
 	}
-	
+
 	private static final String SHADER_ASSETS_PREFIX = "assets/shaders/";
-	
+
 	protected static Resource getShaderResource(String name) {
 		return ResourceManager.getResource(SHADER_ASSETS_PREFIX + name);
 	}
-	
+
 	private final int handle;
 	private final ShaderType type;
-	
+
 	public Shader(ShaderType type, String source) {
 		handle = glCreateShader(type.getGlCode());
 		OpenGLObjectTracker.register(this);
-		
+
 		this.type = type;
-		
+
 		glShaderSource(handle, source);
 		glCompileShader(handle);
-		
+
 		if (glGetShaderi(handle, GL_COMPILE_STATUS) == GL_FALSE) {
 			System.out.println("***************** ERROR ******************");
 			System.out.println(source);
-			throw new RuntimeException("Bad shader:\n" + glGetShaderInfoLog(handle));
+			CrashReports.report(null, "Bad shader:\n %s", glGetShaderInfoLog(handle));
 		}
 	}
-	
+
 	public Shader(String resource) {
 		this(
 				ShaderType.guessByResourceName(resource),
 				getShaderResource(resource).readAsString()
 		);
 	}
-	
+
 	@Override
 	public void delete() {
 		glDeleteShader(handle);
 	}
-	
+
 	public int getHandle() {
 		return handle;
 	}
-	
+
 	public ShaderType getType() {
 		return type;
 	}

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

@@ -18,29 +18,30 @@
 package ru.windcorp.progressia.client.graphics.backend.shaders.attributes;
 
 import ru.windcorp.progressia.client.graphics.backend.shaders.Program;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Attribute {
-	
+
 	protected final int handle;
 	private final Program program;
-	
+
 	public Attribute(int handle, Program program) {
 		if (handle < 0) {
-			throw new RuntimeException("Bad handle: " + handle);
+			CrashReports.report(null, "Bad handle: %d", handle);
 		}
-		
+
 		this.handle = handle;
 		this.program = program;
 	}
-	
+
 	public int getHandle() {
 		return handle;
 	}
-	
+
 	public Program getProgram() {
 		return program;
 	}
-	
+
 	public AttributeVertexArray asVertexArray() {
 		return new AttributeVertexArray(handle, program);
 	}

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

@@ -18,69 +18,70 @@
 package ru.windcorp.progressia.client.graphics.backend.shaders.uniforms;
 
 import ru.windcorp.progressia.client.graphics.backend.shaders.Program;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Uniform {
-	
+
 	protected final int handle;
 	private final Program program;
-	
+
 	public Uniform(int handle, Program program) {
 		if (handle < 0) {
-			throw new RuntimeException("Bad handle: " + handle);
+			CrashReports.report(null, "Bad handle: %d", handle);
 		}
-		
+
 		this.handle = handle;
 		this.program = program;
 	}
-	
+
 	public int getHandle() {
 		return handle;
 	}
-	
+
 	public Program getProgram() {
 		return program;
 	}
-	
+
 	public Uniform1Float as1Float() {
 		return new Uniform1Float(handle, program);
 	}
-	
+
 	public Uniform1Int as1Int() {
 		return new Uniform1Int(handle, program);
 	}
-	
+
 	public Uniform2Float as2Float() {
 		return new Uniform2Float(handle, program);
 	}
-	
+
 	public Uniform2Int as2Int() {
 		return new Uniform2Int(handle, program);
 	}
-	
+
 	public Uniform3Float as3Float() {
 		return new Uniform3Float(handle, program);
 	}
-	
+
 	public Uniform3Int as3Int() {
 		return new Uniform3Int(handle, program);
 	}
-	
+
 	public Uniform4Float as4Float() {
 		return new Uniform4Float(handle, program);
 	}
-	
+
 	public Uniform4Int as4Int() {
 		return new Uniform4Int(handle, program);
 	}
-	
+
 	public Uniform2Matrix as2Matrix() {
 		return new Uniform2Matrix(handle, program);
 	}
-	
+
 	public Uniform3Matrix as3Matrix() {
 		return new Uniform3Matrix(handle, program);
 	}
-	
+
 	public Uniform4Matrix as4Matrix() {
 		return new Uniform4Matrix(handle, program);
 	}

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

@@ -21,152 +21,142 @@ import ru.windcorp.progressia.client.graphics.texture.Texture;
 import ru.windcorp.progressia.client.graphics.texture.TextureDataEditor;
 import ru.windcorp.progressia.client.graphics.texture.TextureSettings;
 import ru.windcorp.progressia.common.resource.Resource;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class GNUUnifontLoader {
-	
-	private static final AtlasGroup ATLAS_GROUP_GNU_UNIFONT =
-			new AtlasGroup("GNUUnifont", 1 << 12);
-	
-	private static final TextureSettings TEXTURE_SETTINGS =
-			new TextureSettings(false);
-	
+
+	private static final AtlasGroup ATLAS_GROUP_GNU_UNIFONT = new AtlasGroup("GNUUnifont", 1 << 12);
+
+	private static final TextureSettings TEXTURE_SETTINGS = new TextureSettings(false);
+
 	private static final int BITS_PER_HEX_DIGIT = 4;
 	private static final int PREFIX_LENGTH = "0000:".length();
-	
+
 	private static class ParsedGlyph {
 		final char c;
 		final TextureDataEditor data;
-		
+
 		ParsedGlyph(char c, TextureDataEditor data) {
 			this.c = c;
 			this.data = data;
 		}
 	}
-	
+
 	private static class AtlasGlyph {
 		final char c;
 		final Texture texture;
-		
+
 		AtlasGlyph(char c, Texture texture) {
 			this.c = c;
 			this.texture = texture;
 		}
 	}
-	
+
 	public static GNUUnifont load(Resource resource) {
 		try (BufferedReader reader = createReader(resource)) {
-			return createStream(reader)
-					.map(GNUUnifontLoader::parse)
-					.map(GNUUnifontLoader::addToAtlas)
-					.collect(Collectors.collectingAndThen(
-							createMapper(),
-							GNUUnifont::new
-					));
+			return createStream(reader).map(GNUUnifontLoader::parse).map(GNUUnifontLoader::addToAtlas)
+					.collect(Collectors.collectingAndThen(createMapper(), GNUUnifont::new));
 		} catch (IOException | UncheckedIOException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not load GNUUnifont");
+			return null;
 		}
 	}
-	
-	private static BufferedReader createReader(Resource resource)
-			throws IOException
-	{
+
+	private static BufferedReader createReader(Resource resource) throws IOException {
 		return new BufferedReader(
-				new InputStreamReader(
-						new GZIPInputStream(
-								resource.getInputStream()
-						),
-						StandardCharsets.UTF_8
-				)
-		);
+				new InputStreamReader(new GZIPInputStream(resource.getInputStream()), StandardCharsets.UTF_8));
 	}
 
 	private static Stream<String> createStream(BufferedReader reader) {
 		return reader.lines();
 	}
-	
+
 	private static ParsedGlyph parse(String declar) {
-		int width = getWidth(declar);
-		checkDeclaration(declar, width);
+		try {
+			
+			int width = getWidth(declar);
+			checkDeclaration(declar, width);
 		
-		char c = getChar(declar);
+			char c = getChar(declar);
 		
-		TextureDataEditor editor = new TextureDataEditor(
-				width, GNUUnifont.HEIGHT,
-				width, GNUUnifont.HEIGHT,
-				TEXTURE_SETTINGS
-		);
+			TextureDataEditor editor = new TextureDataEditor(width, GNUUnifont.HEIGHT, width, GNUUnifont.HEIGHT,
+					TEXTURE_SETTINGS);
 		
-		for (int y = 0; y < GNUUnifont.HEIGHT; ++y) {
-			for (int x = 0; x < width; ++x) {
-				int bit = x + y * width;
-				
-				editor.setPixel(
-						x, GNUUnifont.HEIGHT - y - 1,
-						getBit(declar, bit) ? 0xFFFFFFFF : 0x00000000
-				);
+			for (int y = 0; y < GNUUnifont.HEIGHT; ++y) {
+				for (int x = 0; x < width; ++x) {
+					int bit = x + y * width;
+		
+					editor.setPixel(x, GNUUnifont.HEIGHT - y - 1, getBit(declar, bit) ? 0xFFFFFFFF : 0x00000000);
+				}
 			}
-		}
 		
-		return new ParsedGlyph(c, editor);
+			return new ParsedGlyph(c, editor);
+		
+		} catch (IOException e) {
+			CrashReports.report(e, "Could not load GNUUnifont: could not load character \"%s\"", declar);
+			return null;
+		}
 	}
-	
+
 	private static char getChar(String declar) {
 		int result = 0;
-		
+
 		for (int i = 0; i < 4; ++i) {
-			result = 
-					(result << BITS_PER_HEX_DIGIT) |
-					getHexValue(declar.charAt(i));
+			result = (result << BITS_PER_HEX_DIGIT) | getHexValue(declar.charAt(i));
 		}
-		
+
 		return (char) result;
 	}
 
 	private static boolean getBit(String declar, int bit) {
 		int character = PREFIX_LENGTH + (bit / BITS_PER_HEX_DIGIT);
 		bit = bit % BITS_PER_HEX_DIGIT;
-		
+
 		char c = declar.charAt(character);
 		int value = getHexValue(c);
-		
+
 		return (value & (1 << (BITS_PER_HEX_DIGIT - bit - 1))) != 0;
 	}
-	
+
 	private static int getWidth(String declar) {
 		int meaningfulChars = declar.length() - PREFIX_LENGTH;
 		final int charsPerColumn = GNUUnifont.HEIGHT / BITS_PER_HEX_DIGIT;
 		return meaningfulChars / charsPerColumn;
 	}
 
-	private static void checkDeclaration(String declar, int width) {
+	private static void checkDeclaration(String declar, int width) throws IOException {
 		if (!GNUUnifont.WIDTHS.contains(width)) {
-			throw new RuntimeException("Width " + width + " is not supported (in declar \"" + declar + "\")");
+			throw new IOException("Width " + width + " is not supported (in declar \"" + declar + "\")");
 		}
 		
 		if ((declar.length() - PREFIX_LENGTH) % width != 0) {
-			throw new RuntimeException("Declar \"" + declar + "\" has invalid length");
+			throw new IOException("Declar \"" + declar + "\" has invalid length");
 		}
 		
 		for (int i = 0; i < declar.length(); ++i) {
 			if (i == BITS_PER_HEX_DIGIT) {
 				if (declar.charAt(i) != ':') {
-					throw new RuntimeException("No colon ':' found in declar \"" + declar + "\" at index 4");
+					throw new IOException("No colon ':' found in declar \"" + declar + "\" at index 4");
 				}
 			} else {
 				char c = declar.charAt(i);
 				
 				if (!((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F'))) {
-					throw new RuntimeException("Illegal char in declar \"" + declar + "\" at index " + i + "; expected 0-9A-F");
+					throw new IOException("Illegal char in declar \"" + declar + "\" at index " + i + "; expected 0-9A-F");
 				}
 			}
 		}
 	}
-	
+
 	private static int getHexValue(char digit) {
-		if (digit < '0') throw new NumberFormatException(digit + " is not a hex digit (0-9A-F expected)");
-		if (digit <= '9') return digit - '0';
-		if (digit < 'A') throw new NumberFormatException(digit + " is not a hex digit (0-9A-F expected)");
-		if (digit <= 'F') return digit - 'A' + 0xA;
+		if (digit < '0')
+			throw new NumberFormatException(digit + " is not a hex digit (0-9A-F expected)");
+		if (digit <= '9')
+			return digit - '0';
+		if (digit < 'A')
+			throw new NumberFormatException(digit + " is not a hex digit (0-9A-F expected)");
+		if (digit <= 'F')
+			return digit - 'A' + 0xA;
 		throw new NumberFormatException(digit + " is not a hex digit (0-9A-F expected)");
 	}
 
@@ -174,24 +164,21 @@ public class GNUUnifontLoader {
 		Sprite sprite = Atlases.loadSprite(glyph.data.getData(), ATLAS_GROUP_GNU_UNIFONT);
 		return new AtlasGlyph(glyph.c, new SimpleTexture(sprite));
 	}
-	
-	private static
-	Collector<AtlasGlyph, ?, TCharObjectMap<Texture>>
-	createMapper() {
-		return Collector.of(
-				TCharObjectHashMap<Texture>::new,
-				
+
+	private static Collector<AtlasGlyph, ?, TCharObjectMap<Texture>> createMapper() {
+		return Collector.of(TCharObjectHashMap<Texture>::new,
+
 				(map, glyph) -> map.put(glyph.c, glyph.texture),
-				
+
 				(a, b) -> {
 					a.putAll(b);
 					return a;
 				},
-				
-				Characteristics.UNORDERED
-		);
+
+				Characteristics.UNORDERED);
 	}
 
-	private GNUUnifontLoader() {}
+	private GNUUnifontLoader() {
+	}
 
 }

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

@@ -39,40 +39,40 @@ import ru.windcorp.progressia.client.graphics.input.bus.Input;
 import ru.windcorp.progressia.client.graphics.input.bus.InputBus;
 import ru.windcorp.progressia.client.graphics.input.bus.InputListener;
 import ru.windcorp.progressia.common.util.Named;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Component extends Named {
 
-	private final List<Component> children =
-			Collections.synchronizedList(new CopyOnWriteArrayList<>());
-	
+	private final List<Component> children = Collections.synchronizedList(new CopyOnWriteArrayList<>());
+
 	private Component parent = null;
-	
+
 	private EventBus eventBus = null;
 	private InputBus inputBus = null;
-	
+
 	private int x, y;
 	private int width, height;
-	
+
 	private boolean valid = false;
-	
+
 	private Vec2i preferredSize = null;
-	
+
 	private Object layoutHint = null;
 	private Layout layout = null;
-	
+
 	private boolean isFocusable = false;
 	private boolean isFocused = false;
-	
+
 	private boolean isHovered = false;
 
 	public Component(String name) {
 		super(name);
 	}
-	
+
 	public Component getParent() {
 		return parent;
 	}
-	
+
 	protected void setParent(Component parent) {
 		if (this.parent != parent) {
 			Component previousParent = this.parent;
@@ -81,68 +81,71 @@ public class Component extends Named {
 			dispatchEvent(new ParentChangedEvent(this, previousParent, parent));
 		}
 	}
-	
+
 	public List<Component> getChildren() {
 		return children;
 	}
-	
+
 	public Component getChild(int index) {
 		synchronized (getChildren()) {
-			if (index < 0 || index >= getChildren().size()) return null;
+			if (index < 0 || index >= getChildren().size())
+				return null;
 			return getChildren().get(index);
 		}
 	}
-	
+
 	public int getChildIndex(Component child) {
 		return getChildren().indexOf(child);
 	}
-	
+
 	public int getOwnIndex() {
 		Component parent = getParent();
 		if (parent != null) {
 			return parent.getChildIndex(this);
 		}
-		
+
 		return -1;
 	}
-	
+
 	public void moveChild(Component child, int newIndex) {
-		if (newIndex == -1) newIndex = getChildren().size() - 1;
-		
+		if (newIndex == -1)
+			newIndex = getChildren().size() - 1;
+
 		if (getChildren().remove(child)) {
 			getChildren().add(newIndex, child);
 			invalidate();
 		}
 	}
-	
+
 	public void moveSelf(int newIndex) {
 		Component parent = getParent();
 		if (parent != null) {
 			parent.moveChild(this, newIndex);
 		}
 	}
-	
+
 	public Component addChild(Component child, int index) {
-		if (index == -1) index = getChildren().size();
+		if (index == -1)
+			index = getChildren().size();
 
 		invalidate();
 		getChildren().add(index, child);
 		child.setParent(this);
-		
+
 		dispatchEvent(new ChildAddedEvent(this, child));
-		
+
 		return this;
 	}
-	
+
 	public Component addChild(Component child) {
 		return addChild(child, -1);
 	}
-	
+
 	public Component removeChild(Component child) {
 		if (!getChildren().contains(child)) {
 			return this;
 		}
-		
+
 		if (child.isFocused()) {
 			child.focusNext();
 		}
@@ -150,204 +153,205 @@ public class Component extends Named {
 		invalidate();
 		getChildren().remove(child);
 		child.setParent(null);
-		
+
 		dispatchEvent(new ChildRemovedEvent(this, child));
-		
+
 		return this;
 	}
-	
+
 	public synchronized int getX() {
 		return x;
 	}
-	
+
 	public synchronized int getY() {
 		return y;
 	}
-	
+
 	public synchronized Component setPosition(int x, int y) {
 		invalidate();
 		this.x = x;
 		this.y = y;
 		return this;
 	}
-	
+
 	public synchronized int getWidth() {
 		return width;
 	}
-	
+
 	public synchronized int getHeight() {
 		return height;
 	}
-	
+
 	public synchronized Component setSize(int width, int height) {
 		invalidate();
 		this.width = width;
 		this.height = height;
 		return this;
 	}
-	
+
 	public Component setSize(Vec2i size) {
 		return setSize(size.x, size.y);
 	}
-	
+
 	public synchronized Component setBounds(int x, int y, int width, int height) {
 		setPosition(x, y);
 		setSize(width, height);
 		return this;
 	}
-	
+
 	public Component setBounds(int x, int y, Vec2i size) {
 		return setBounds(x, y, size.x, size.y);
 	}
-	
+
 	public boolean isValid() {
 		return valid;
 	}
-	
+
 	public synchronized void invalidate() {
 		valid = false;
 		getChildren().forEach(child -> child.invalidate());
 	}
-	
+
 	public synchronized void validate() {
 		Component parent = getParent();
 		invalidate();
-		
+
 		if (parent == null) {
 			layoutSelf();
 		} else {
 			parent.validate();
 		}
 	}
-	
+
 	protected synchronized void layoutSelf() {
 		try {
 			if (getLayout() != null) {
 				getLayout().layout(this);
 			}
-			
+
 			getChildren().forEach(child -> {
 				child.layoutSelf();
 			});
-			
+
 			valid = true;
 		} catch (Exception e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not layout Component %s", this);
 		}
 	}
-	
+
 	public synchronized Vec2i getPreferredSize() {
 		if (preferredSize != null) {
 			return preferredSize;
 		}
-		
+
 		if (getLayout() != null) {
 			try {
 				return getLayout().calculatePreferredSize(this);
 			} catch (Exception e) {
-				throw new RuntimeException(e);
+				CrashReports.report(e, "Could not calculate preferred size for Component %s", this);
 			}
 		}
-		
+
 		return new Vec2i(0, 0);
 	}
-	
+
 	public synchronized Component setPreferredSize(Vec2i preferredSize) {
 		this.preferredSize = preferredSize;
 		return this;
 	}
-	
+
 	public Component setPreferredSize(int width, int height) {
 		return setPreferredSize(new Vec2i(width, height));
 	}
-	
+
 	public Layout getLayout() {
 		return layout;
 	}
-	
+
 	public synchronized Component setLayout(Layout layout) {
 		invalidate();
 		this.layout = layout;
 		return this;
 	}
-	
+
 	public Object getLayoutHint() {
 		return layoutHint;
 	}
-	
+
 	public Component setLayoutHint(Object hint) {
 		this.layoutHint = hint;
 		return this;
 	}
-	
+
 	public boolean isFocusable() {
 		return isFocusable;
 	}
-	
+
 	public Component setFocusable(boolean focusable) {
 		this.isFocusable = focusable;
 		return this;
 	}
-	
+
 	public boolean isFocused() {
 		return isFocused;
 	}
-	
+
 	protected synchronized void setFocused(boolean focus) {
 		if (focus != this.isFocused) {
 			dispatchEvent(new FocusEvent(this, focus));
 			this.isFocused = focus;
 		}
 	}
-	
+
 	public Component takeFocus() {
 		if (isFocused()) {
 			return this;
 		}
-		
+
 		Component comp = this;
 		Component focused = null;
-		
+
 		while (comp != null) {
 			if ((focused = comp.findFocused()) != null) {
 				focused.setFocused(false);
 				setFocused(true);
 				return this;
 			}
-			
+
 			comp = comp.getParent();
 		}
-		
+
 		setFocused(true);
 		return this;
 	}
-	
+
 	public void focusNext() {
 		Component component = this;
-		
+
 		while (true) {
-			
+
 			component = component.getNextFocusCandidate(true);
 			if (component == this) {
 				return;
 			}
-			
+
 			if (component.isFocusable()) {
 				setFocused(false);
 				component.setFocused(true);
 				return;
 			}
-			
+
 		}
 	}
-	
+
 	private Component getNextFocusCandidate(boolean canUseChildren) {
-		if (canUseChildren) synchronized (getChildren()) {
-			if (!getChildren().isEmpty()) {
-				return getChild(0);
+		if (canUseChildren)
+			synchronized (getChildren()) {
+				if (!getChildren().isEmpty()) {
+					return getChild(0);
+				}
 			}
-		}
-		
+
 		Component parent = getParent();
 		if (parent != null) {
 			synchronized (parent.getChildren()) {
@@ -356,32 +360,32 @@ public class Component extends Named {
 					return parent.getChild(ownIndex + 1);
 				}
 			}
-			
+
 			return parent.getNextFocusCandidate(false);
 		}
-		
+
 		return this;
 	}
-	
+
 	public void focusPrevious() {
 		Component component = this;
-		
+
 		while (true) {
-			
+
 			component = component.getPreviousFocusCandidate();
 			if (component == this) {
 				return;
 			}
-			
+
 			if (component.isFocusable()) {
 				setFocused(false);
 				component.setFocused(true);
 				return;
 			}
-			
+
 		}
 	}
-	
+
 	private Component getPreviousFocusCandidate() {
 		Component parent = getParent();
 		if (parent != null) {
@@ -391,30 +395,30 @@ public class Component extends Named {
 					return parent.getChild(ownIndex - 1).getLastDeepChild();
 				}
 			}
-			
+
 			return parent;
 		}
-		
+
 		return getLastDeepChild();
 	}
-	
+
 	private Component getLastDeepChild() {
 		synchronized (getChildren()) {
 			if (!getChildren().isEmpty()) {
 				return getChild(getChildren().size() - 1).getLastDeepChild();
 			}
-			
+
 			return this;
 		}
 	}
-	
+
 	public synchronized Component findFocused() {
 		if (isFocused()) {
 			return this;
 		}
-		
+
 		Component result;
-		
+
 		synchronized (getChildren()) {
 			for (Component c : getChildren()) {
 				result = c.findFocused();
@@ -423,10 +427,10 @@ public class Component extends Named {
 				}
 			}
 		}
-		
+
 		return null;
 	}
-	
+
 	public boolean isHovered() {
 		return isHovered;
 	}
@@ -434,9 +438,9 @@ public class Component extends Named {
 	protected void setHovered(boolean isHovered) {
 		if (this.isHovered != isHovered) {
 			this.isHovered = isHovered;
-			
+
 			if (!isHovered && !getChildren().isEmpty()) {
-				
+
 				getChildren().forEach(child -> {
 					if (child.isHovered()) {
 						child.setHovered(false);
@@ -444,7 +448,7 @@ public class Component extends Named {
 					}
 				});
 			}
-			
+
 			dispatchEvent(new HoverEvent(this, isHovered));
 		}
 	}
@@ -453,40 +457,36 @@ public class Component extends Named {
 		if (eventBus == null) {
 			eventBus = new EventBus(getName());
 		}
-		
+
 		eventBus.register(listener);
 	}
-	
+
 	public void removeListener(Object listener) {
-		if (eventBus == null) return;
+		if (eventBus == null)
+			return;
 		eventBus.unregister(listener);
 	}
-	
+
 	public void dispatchEvent(Object event) {
-		if (eventBus == null) return;
+		if (eventBus == null)
+			return;
 		eventBus.post(event);
 	}
-	
-	public <T extends InputEvent> void addListener(
-			Class<? extends T> type,
-			boolean handlesConsumed,
-			InputListener<T> listener
-	) {
+
+	public <T extends InputEvent> void addListener(Class<? extends T> type, boolean handlesConsumed,
+			InputListener<T> listener) {
 		if (inputBus == null) {
 			inputBus = new InputBus();
 		}
-		
+
 		inputBus.register(type, handlesConsumed, listener);
 	}
 
-	public <T extends InputEvent> void addListener(
-			Class<? extends T> type,
-			InputListener<T> listener
-	) {
+	public <T extends InputEvent> void addListener(Class<? extends T> type, InputListener<T> listener) {
 		if (inputBus == null) {
 			inputBus = new InputBus();
 		}
-		
+
 		inputBus.register(type, listener);
 	}
 
@@ -501,43 +501,45 @@ public class Component extends Named {
 			inputBus.dispatch(input);
 		}
 	}
-	
+
 	public void dispatchInput(Input input) {
 		try {
 			switch (input.getTarget()) {
-			case FOCUSED:
-				dispatchInputToFocused(input);
-				break;
-			case HOVERED:
-				dispatchInputToHovered(input);
-				break;
-			case ALL:
-			default:
-				dispatchInputToAll(input);
-				break;
+				case FOCUSED:
+					dispatchInputToFocused(input);
+					break;
+				case HOVERED:
+					dispatchInputToHovered(input);
+					break;
+				case ALL:
+				default:
+					dispatchInputToAll(input);
+					break;
 			}
 		} catch (Exception e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not dispatch input to Component %s", this);
 		}
 	}
 
 	private void dispatchInputToFocused(Input input) {
 		Component c = findFocused();
-		
-		if (c == null) return;
-		if (attemptFocusTransfer(input, c)) return;
-		
+
+		if (c == null)
+			return;
+		if (attemptFocusTransfer(input, c))
+			return;
+
 		while (c != null) {
 			c.handleInput(input);
 			c = c.getParent();
 		}
 	}
-	
+
 	private void dispatchInputToHovered(Input input) {
 		getChildren().forEach(child -> {
 			if (child.containsCursor()) {
 				child.setHovered(true);
-				
+
 				if (!input.isConsumed()) {
 					child.dispatchInput(input);
 				}
@@ -555,11 +557,13 @@ public class Component extends Named {
 	}
 
 	private boolean attemptFocusTransfer(Input input, Component focused) {
-		if (input.isConsumed()) return false;
-		if (!(input.getEvent() instanceof KeyEvent)) return false;
-		
+		if (input.isConsumed())
+			return false;
+		if (!(input.getEvent() instanceof KeyEvent))
+			return false;
+
 		KeyEvent keyInput = (KeyEvent) input.getEvent();
-		
+
 		if (keyInput.getKey() == GLFW.GLFW_KEY_TAB && !keyInput.isRelease()) {
 			input.consume();
 			if (keyInput.hasShift()) {
@@ -569,23 +573,18 @@ public class Component extends Named {
 			}
 			return true;
 		}
-		
+
 		return false;
 	}
-	
+
 	public synchronized boolean contains(int x, int y) {
-		return
-				x >= getX() && x < getX() + getWidth() &&
-				y >= getY() && y < getY() + getHeight();
+		return x >= getX() && x < getX() + getWidth() && y >= getY() && y < getY() + getHeight();
 	}
-	
+
 	public boolean containsCursor() {
-		return contains(
-				(int) InputTracker.getCursorX(),
-				(int) InputTracker.getCursorY()
-		);
+		return contains((int) InputTracker.getCursorX(), (int) InputTracker.getCursorY());
 	}
-	
+
 	public void requestReassembly() {
 		if (parent != null) {
 			parent.requestReassembly();
@@ -602,60 +601,60 @@ public class Component extends Named {
 		if (width == 0 || height == 0) {
 			return;
 		}
-		
+
 		if (!isValid()) {
 			validate();
 		}
-		
+
 		try {
 			assembleSelf(target);
 		} catch (Exception e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not assemble Component %s", this);
 		}
-		
+
 		assembleChildren(target);
-		
+
 		try {
 			postAssembleSelf(target);
 		} catch (Exception e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Post-assembly failed for Component %s", this);
 		}
 	}
-	
+
 	protected void assembleSelf(RenderTarget target) {
 		// To be overridden
 	}
-	
+
 	protected void postAssembleSelf(RenderTarget target) {
 		// To be overridden
 	}
-	
+
 	protected void assembleChildren(RenderTarget target) {
 		getChildren().forEach(child -> child.assemble(target));
 	}
-	
-//	/**
-//	 * Returns a component that displays this component in its center.
-//	 * @return a {@link Aligner} initialized to center this component
-//	 */
-//	public Component center() {
-//		return new Aligner(this);
-//	}
-//	
-//	/**
-//	 * Returns a component that aligns this component.
-//	 * @return a {@link Aligner} initialized with this component
-//	 */
-//	public Component align(double x, double y) {
-//		return new Aligner(this, x, y);
-//	}
-//	
-//	/**
-//	 * Returns a component that allows scrolling this component
-//	 * @return a {@link Scroller} initialized with this component
-//	 */
-//	public Component scroller() {
-//		return new Scroller(this);
-//	}
+
+	// /**
+	// * Returns a component that displays this component in its center.
+	// * @return a {@link Aligner} initialized to center this component
+	// */
+	// public Component center() {
+	// return new Aligner(this);
+	// }
+	//
+	// /**
+	// * Returns a component that aligns this component.
+	// * @return a {@link Aligner} initialized with this component
+	// */
+	// public Component align(double x, double y) {
+	// return new Aligner(this, x, y);
+	// }
+	//
+	// /**
+	// * Returns a component that allows scrolling this component
+	// * @return a {@link Scroller} initialized with this component
+	// */
+	// public Component scroller() {
+	// return new Scroller(this);
+	// }
 
 }

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

@@ -31,108 +31,101 @@ import gnu.trove.map.hash.TIntObjectHashMap;
 import gnu.trove.map.hash.TObjectIntHashMap;
 import gnu.trove.set.TIntSet;
 import gnu.trove.set.hash.TIntHashSet;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Keys {
-	
-	private static final TIntObjectMap<String> CODES_TO_NAMES =
-			new TIntObjectHashMap<>();
-	
-	private static final TObjectIntMap<String> NAMES_TO_CODES =
-			new TObjectIntHashMap<>();
-	
+
+	private static final TIntObjectMap<String> CODES_TO_NAMES = new TIntObjectHashMap<>();
+
+	private static final TObjectIntMap<String> NAMES_TO_CODES = new TObjectIntHashMap<>();
+
 	private static final TIntSet MOUSE_BUTTONS = new TIntHashSet();
-	
+
 	private static final String KEY_PREFIX = "GLFW_KEY_";
 	private static final String MOUSE_BUTTON_PREFIX = "GLFW_MOUSE_BUTTON_";
-	
-	private static final Set<String> IGNORE_FIELDS =
-			new HashSet<>(Arrays.asList(
-					"GLFW_KEY_UNKNOWN",
-					"GLFW_KEY_LAST",
-					"GLFW_MOUSE_BUTTON_LAST",
-					"GLFW_MOUSE_BUTTON_1", // Alias for LEFT
+
+	private static final Set<String> IGNORE_FIELDS = new HashSet<>(
+			Arrays.asList("GLFW_KEY_UNKNOWN", "GLFW_KEY_LAST", "GLFW_MOUSE_BUTTON_LAST", "GLFW_MOUSE_BUTTON_1", // Alias
+																												// for
+																												// LEFT
 					"GLFW_MOUSE_BUTTON_2", // Alias for RIGHT
-					"GLFW_MOUSE_BUTTON_3"  // Alias for MIDDLE
+					"GLFW_MOUSE_BUTTON_3" // Alias for MIDDLE
 			));
-	
+
 	static {
 		initializeDictionary();
 	}
 
 	private static void initializeDictionary() {
 		try {
-			
+
 			for (Field field : GLFW.class.getFields()) {
-				if (!Modifier.isStatic(field.getModifiers())) continue;
-				if (!Modifier.isFinal(field.getModifiers())) continue;
-				
+				if (!Modifier.isStatic(field.getModifiers()))
+					continue;
+				if (!Modifier.isFinal(field.getModifiers()))
+					continue;
+
 				String name = field.getName();
-				
-				if (
-						!name.startsWith(KEY_PREFIX) &&
-						!name.startsWith(MOUSE_BUTTON_PREFIX)
-				) continue;
-				
-				if (IGNORE_FIELDS.contains(name)) continue;
-				
+
+				if (!name.startsWith(KEY_PREFIX) && !name.startsWith(MOUSE_BUTTON_PREFIX))
+					continue;
+
+				if (IGNORE_FIELDS.contains(name))
+					continue;
+
 				addToDictionary(field);
 			}
-			
+
 		} catch (IllegalAccessException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Cannot access GLFW constants");
 		}
 	}
 
-	private static void addToDictionary(Field field)
-			throws IllegalAccessException {
-		
+	private static void addToDictionary(Field field) throws IllegalAccessException {
+
 		int value = field.getInt(null);
 		String name = field.getName();
-		
+
 		if (name.startsWith(KEY_PREFIX)) {
 			name = name.substring(KEY_PREFIX.length());
 		} else if (name.startsWith(MOUSE_BUTTON_PREFIX)) {
 			name = "MOUSE_" + name.substring(MOUSE_BUTTON_PREFIX.length());
 			MOUSE_BUTTONS.add(value);
 		}
-		
+
 		if (CODES_TO_NAMES.containsKey(value)) {
-			throw new RuntimeException(
-					"Duplicate keys: " + CODES_TO_NAMES.get(value) +
-					" and " + name + " both map to " + value +
-					"(0x" + Integer.toHexString(value) + ")"
-			);
+			CrashReports.report(null, "Duplicate keys: %s and %s both map to %d(0x%s)",
+					CODES_TO_NAMES.get(value), name, value, Integer.toHexString(value));
 		}
-		
+
 		CODES_TO_NAMES.put(value, name);
 		NAMES_TO_CODES.put(name, value);
 	}
-	
+
 	public static String getInternalName(int code) {
 		String result = CODES_TO_NAMES.get(code);
-		
+
 		if (result == null) {
 			return "UNKNOWN";
 		}
-		
+
 		return result;
 	}
-	
+
 	public static String getDisplayName(int code) {
 		String name = getInternalName(code);
-		
+
 		if (name.startsWith("KP_")) {
 			name = "KEYPAD_" + name.substring("KP_".length());
 		}
-		
-		name = Character.toTitleCase(name.charAt(0)) +
-				name.substring(1).toLowerCase();
-		
+
+		name = Character.toTitleCase(name.charAt(0)) + name.substring(1).toLowerCase();
+
 		name = name.replace('_', ' ');
-		
+
 		return name;
 	}
-	
+
 	public static int getCode(String internalName) {
 		if (NAMES_TO_CODES.containsKey(internalName)) {
 			return -1;
@@ -140,7 +133,7 @@ public class Keys {
 			return NAMES_TO_CODES.get(internalName);
 		}
 	}
-	
+
 	public static boolean isMouse(int code) {
 		return MOUSE_BUTTONS.contains(code);
 	}

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

@@ -13,72 +13,67 @@ import ru.windcorp.progressia.client.graphics.backend.RenderTaskQueue;
 import ru.windcorp.progressia.common.resource.Resource;
 import ru.windcorp.progressia.common.util.BinUtil;
 import ru.windcorp.progressia.common.util.Named;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Atlases {
-	
+
 	public static class AtlasGroup extends Named {
 		private final int atlasSize;
-		
+
 		public AtlasGroup(String name, int atlasSize) {
 			super(name);
 			this.atlasSize = atlasSize;
-			
+
 			if (!BinUtil.isPowerOf2(atlasSize)) {
-				throw new IllegalArgumentException(
-						"Atlas size " + atlasSize
-						+ " is not a power of 2"
-				);
+				throw new IllegalArgumentException("Atlas size " + atlasSize + " is not a power of 2");
 			}
 		}
-		
+
 		public int getAtlasSize() {
 			return atlasSize;
 		}
-		
+
 		@Override
 		public int hashCode() {
 			return super.hashCode();
 		}
-		
+
 		@Override
 		public boolean equals(Object obj) {
 			return super.equals(obj);
 		}
 	}
-	
+
 	public static class Atlas {
 		private final AtlasGroup group;
-		
+
 		private final TextureDataEditor editor;
 		private int nextX, nextY;
 		private int rowHeight;
-		
+
 		private final TexturePrimitive primitive;
-		
+
 		public Atlas(AtlasGroup group) {
 			this.group = group;
 			int size = group.getAtlasSize();
-			
+
 			this.editor = new TextureDataEditor(size, size, size, size, SETTINGS);
 			this.primitive = new TexturePrimitive(editor.getData());
 		}
-		
+
 		public Sprite addSprite(TextureData data) {
 			int width = data.getContentWidth();
 			int height = data.getContentHeight();
-			
+
 			selectPosition(width, height);
-			
+
 			editor.draw(data, nextX, nextY);
-			
-			Sprite result = new Sprite(
-					getPrimitive(),
-					toPrimitiveCoords(nextX, nextY),
-					toPrimitiveCoords(width, height)
-			);
-			
+
+			Sprite result = new Sprite(getPrimitive(), toPrimitiveCoords(nextX, nextY),
+					toPrimitiveCoords(width, height));
+
 			nextX += width;
-			
+
 			return result;
 		}
 
@@ -87,10 +82,10 @@ public class Atlases {
 				// Wrapping
 				nextY += rowHeight; // Move to next row
 				rowHeight = height; // Next row is at least 'height' high
-				nextX = 0;          // Start the row over
+				nextX = 0; // Start the row over
 			} else {
 				// Not wrapping
-				
+
 				// Update rowHeight if necessary
 				if (rowHeight < height) {
 					rowHeight = height;
@@ -99,10 +94,7 @@ public class Atlases {
 		}
 
 		private Vec2 toPrimitiveCoords(int x, int y) {
-			return new Vec2(
-					toPrimitiveCoord(x),
-					toPrimitiveCoord(y)
-			);
+			return new Vec2(toPrimitiveCoord(x), toPrimitiveCoord(y));
 		}
 
 		private float toPrimitiveCoord(int c) {
@@ -112,87 +104,82 @@ public class Atlases {
 		public boolean canAddSprite(TextureData data) {
 			int width = data.getContentWidth();
 			int height = data.getContentHeight();
-			
+
 			// Try to fit without wrapping
-			
+
 			if (nextY + height > getSize())
 				// Does not fit vertically
 				return false;
-			
+
 			if (nextX + width <= getSize())
 				// Can place at (nextX; nextY)
 				return true;
-			
+
 			// Try wrapping
-			
+
 			if (width > getSize())
 				// GTFO. We couldn't fit if if we tried
 				return false;
-			
+
 			if (nextY + rowHeight + height > getSize())
 				// Does not fit vertically when wrapped
 				return false;
-			
+
 			// Can place at (0; nextY + rowHeight)
 			return true;
 		}
-		
+
 		public AtlasGroup getGroup() {
 			return group;
 		}
-		
+
 		public TexturePrimitive getPrimitive() {
 			return primitive;
 		}
-		
+
 		public int getSize() {
 			return editor.getBufferWidth();
 		}
 	}
-	
+
 	private static final TextureSettings SETTINGS = new TextureSettings(false);
-	
-	private static final Map<Resource, Sprite> LOADED =
-			new HashMap<>();
-	private static final Multimap<AtlasGroup, Atlas> ATLASES =
-			MultimapBuilder.hashKeys().arrayListValues().build();
-	
+
+	private static final Map<Resource, Sprite> LOADED = new HashMap<>();
+	private static final Multimap<AtlasGroup, Atlas> ATLASES = MultimapBuilder.hashKeys().arrayListValues().build();
+
 	public static Sprite getSprite(Resource resource, AtlasGroup group) {
 		return LOADED.computeIfAbsent(resource, k -> loadSprite(k, group));
 	}
-	
+
 	private static Sprite loadSprite(Resource resource, AtlasGroup group) {
 		try {
-			TextureDataEditor data =
-					TextureLoader.loadPixels(resource, SETTINGS);
-			
+			TextureDataEditor data = TextureLoader.loadPixels(resource, SETTINGS);
+
 			return loadSprite(data.getData(), group);
 		} catch (IOException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not load sprite %s into atlas group %s", resource, group);
+			return null;
 		}
 	}
-	
+
 	public static Sprite loadSprite(TextureData data, AtlasGroup group) {
 		Atlas atlas = getReadyAtlas(group, data);
 		return atlas.addSprite(data);
 	}
-	
+
 	private static Atlas getReadyAtlas(AtlasGroup group, TextureData data) {
 		List<Atlas> atlases = (List<Atlas>) ATLASES.get(group);
-		
-		if (
-				atlases.isEmpty() ||
-				!(atlases.get(atlases.size() - 1).canAddSprite(data))
-		) {
+
+		if (atlases.isEmpty() || !(atlases.get(atlases.size() - 1).canAddSprite(data))) {
 			Atlas newAtlas = new Atlas(group);
-			
+
 			if (!newAtlas.canAddSprite(data)) {
-				throw new RuntimeException("Could not fit tex into atlas of size " + newAtlas.getSize());
+				CrashReports.report(null, "Could not fit texture into atlas of size %d", newAtlas.getSize());
 			}
-			
+
 			atlases.add(newAtlas);
 		}
-		
+
 		return atlases.get(atlases.size() - 1);
 	}
 
@@ -201,7 +188,8 @@ public class Atlases {
 			RenderTaskQueue.invokeLater(atlas.getPrimitive()::load);
 		});
 	}
-	
-	private Atlases() {}
+
+	private Atlases() {
+	}
 
 }

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

@@ -6,21 +6,22 @@ import java.util.Map;
 
 import ru.windcorp.progressia.common.resource.Resource;
 import ru.windcorp.progressia.common.resource.ResourceManager;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class SimpleTextures {
-	
+
 	private static final TextureSettings SETTINGS = new TextureSettings(false);
-	
+
 	private static final Map<Resource, Texture> TEXTURES = new HashMap<>();
-	
+
 	public static Texture get(Resource resource) {
 		return TEXTURES.computeIfAbsent(resource, SimpleTextures::load);
 	}
-	
+
 	public static Texture get(String textureName) {
 		return get(ResourceManager.getTextureResource(textureName));
 	}
-	
+
 	private static Texture load(Resource resource) {
 		try {
 			TextureDataEditor data =
@@ -30,9 +31,10 @@ public class SimpleTextures {
 					new Sprite(new TexturePrimitive(data.getData()))
 			);
 		} catch (IOException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not load texture %s", resource);
+			return null;
 		}
-		
+
 	}
 
 	private SimpleTextures() {}

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

@@ -24,27 +24,28 @@ import java.util.Arrays;
 
 import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker;
 import ru.windcorp.progressia.client.graphics.backend.OpenGLObjectTracker.OpenGLDeletable;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class TexturePrimitive implements OpenGLDeletable {
-	
+
 	private static final int NOT_LOADED = -1;
-	
+
 	private static int[] currentlyBound = new int[32];
 	static {
 		Arrays.fill(currentlyBound, NOT_LOADED);
 	}
-	
+
 	private int handle = NOT_LOADED;
 	private TextureData pixels;
 
 	public TexturePrimitive(TextureData pixels) {
 		this.pixels = pixels;
 	}
-	
+
 	public TextureData getData() {
 		return pixels;
 	}
-	
+
 	public int getBufferWidth() {
 		return pixels.getBufferWidth();
 	}
@@ -64,21 +65,21 @@ public class TexturePrimitive implements OpenGLDeletable {
 	public boolean isLoaded() {
 		return handle != NOT_LOADED;
 	}
-	
+
 	public void bind(int slot) {
 		if (!isLoaded()) {
 			load();
 		}
-		
+
 		if (currentlyBound[slot] == handle) {
 			return;
 		}
-		
+
 		int code = GL_TEXTURE0 + slot;
-		
+
 		glActiveTexture(code);
 		glBindTexture(GL_TEXTURE_2D, handle);
-		
+
 		currentlyBound[slot] = handle;
 	}
 
@@ -87,9 +88,9 @@ public class TexturePrimitive implements OpenGLDeletable {
 		
 		handle = pixels.load();
 		OpenGLObjectTracker.register(this);
-		
+
 		if (handle < 0) {
-			throw new RuntimeException("oops");
+			CrashReports.report(null, "Failed to allocate texture");
 		}
 	}
 

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

@@ -3,6 +3,8 @@ package ru.windcorp.progressia.client.localization;
 import java.lang.ref.WeakReference;
 import java.util.*;
 
+import ru.windcorp.progressia.common.util.crash.CrashReports;
+
 public class Localizer {
 	private static final Localizer INSTANCE = new Localizer("assets/languages/", "en-US");
 
@@ -17,7 +19,7 @@ public class Localizer {
 	private final Collection<WeakReference<LocaleListener>> listeners =
 			Collections.synchronizedCollection(new LinkedList<>());
 
-	//lang list must be in the same folder as .lang files
+	// lang list must be in the same folder as .lang files
 	public Localizer(String langFolder) {
 		this.langFolder = langFolder;
 		this.langList = new Parser(langFolder + "lang_list.txt").parse();
@@ -41,7 +43,7 @@ public class Localizer {
 			data = new Parser(langFolder + this.language + ".lang").parse();
 			pokeListeners(language);
 		} else {
-			throw new RuntimeException("Language not found: " + language);
+			CrashReports.report(null, "Language not found: %s", language);
 		}
 	}
 
@@ -64,7 +66,7 @@ public class Localizer {
 	}
 
 	private void pokeListeners(String newLanguage) {
-		//TODO extract as weak bus listener class
+		// TODO extract as weak bus listener class
 		synchronized (listeners) {
 			Iterator<WeakReference<LocaleListener>> iterator = listeners.iterator();
 			while (iterator.hasNext()) {

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

@@ -3,6 +3,7 @@ package ru.windcorp.progressia.client.localization;
 import ru.windcorp.jputil.chars.EscapeException;
 import ru.windcorp.jputil.chars.Escaper;
 import ru.windcorp.progressia.common.resource.ResourceManager;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 import java.io.IOException;
 import java.io.Reader;
@@ -54,7 +55,7 @@ public class Parser {
 					if (c == '=') {
 						String key = ESCAPER.escape(stringBuilder.toString());
 						stringBuilder.setLength(0);
-						rawData.read(); //skip a char
+						rawData.read(); // skip a char
 						while (true) {
 							code = rawData.read();
 							if (code == -1) {
@@ -80,7 +81,8 @@ public class Parser {
 			}
 
 		} catch (IOException | EscapeException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not parse language file %s", filePath);
+			return null;
 		}
 		return parsedData;
 	}

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

@@ -7,6 +7,7 @@ import ru.windcorp.progressia.client.graphics.texture.TexturePrimitive;
 import ru.windcorp.progressia.client.graphics.texture.TextureSettings;
 import ru.windcorp.progressia.common.resource.ResourceManager;
 import ru.windcorp.progressia.common.util.namespaces.NamespacedInstanceRegistry;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class EntityRenderRegistry extends NamespacedInstanceRegistry<EntityRender> {
 	
@@ -28,7 +29,8 @@ public class EntityRenderRegistry extends NamespacedInstanceRegistry<EntityRende
 					).getData()
 			);
 		} catch (IOException e) {
-			throw new RuntimeException(e);
+			CrashReports.report(e, "Could not load entity texture %s", name);
+			return null;
 		}
 	}
 

src/main/java/ru/windcorp/progressia/common/resource/Resource.java

@@ -30,50 +30,53 @@ import com.google.common.io.CharStreams;
 
 import ru.windcorp.progressia.Progressia;
 import ru.windcorp.progressia.common.util.Named;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 
 public class Resource extends Named {
-	
+
 	public Resource(String name) {
 		super(name);
 	}
-	
+
 	public InputStream getInputStream() {
 		// TODO Do proper resource lookup
 		return Progressia.class.getClassLoader().getResourceAsStream(getName());
 	}
-	
+
 	public Reader getReader() {
 		return new InputStreamReader(getInputStream());
 	}
-	
+
 	public String readAsString() {
 		try (Reader reader = getReader()) {
 			return CharStreams.toString(reader);
 		} catch (IOException e) {
-			throw new RuntimeException(e); // TODO handle gracefully
+			CrashReports.report(e, "Could not read resource %s as text", this);
+			return null;
 		}
 	}
-	
+
 	public ByteBuffer readAsBytes(ByteBuffer output) {
 		byte[] byteArray;
 		try (InputStream stream = getInputStream()) {
 			byteArray = ByteStreams.toByteArray(stream);
 		} catch (IOException e) {
-			throw new RuntimeException(e); // TODO handle gracefully
+			CrashReports.report(e, "Could not read resource %s as bytes", this);
+			return null;
 		}
-		
+
 		if (output == null || output.remaining() < byteArray.length) {
 			output = BufferUtils.createByteBuffer(byteArray.length);
 		}
-		
+
 		int position = output.position();
 		output.put(byteArray);
 		output.limit(output.position());
 		output.position(position);
-		
+
 		return output;
 	}
-	
+
 	public ByteBuffer readAsBytes() {
 		return readAsBytes(null);
 	}

src/main/java/ru/windcorp/progressia/common/util/crash/Analyzer.java

@@ -0,0 +1,32 @@
+package ru.windcorp.progressia.common.util.crash;
+
+/**
+ * A crash report utility that performs analysis of a problem during crash
+ * report generation and presents its conclusion to the user via the crash report.
+ * Unlike {@link ContextProvider}s, Analyzers are provided with the reported problem
+ * details.
+ * @see ContextProvider
+ * @author serega404
+ */
+public interface Analyzer {
+	
+	/**
+	 * Provides a human-readable string describing this analyzer's conclusion
+	 * on the presented problem, or returns {@code null} if no conclusion
+	 * could be made.
+	 * @param throwable The reported throwable (may be {@code null})
+	 * @param messageFormat A {@linkplain java.util.Formatter#syntax format string} of a
+	 * human-readable description of the problem 
+	 * @param args The arguments for the format string
+	 * @return a conclusion or {@code null}
+	 */
+	String analyze(Throwable throwable, String messageFormat, Object... args);
+
+	/**
+	 * Returns this analyzer's human-readable name.
+	 * It should be A String In Title Case With Spaces.
+	 * @return this analyzer's name
+	 */
+	String getName();
+	
+}

src/main/java/ru/windcorp/progressia/common/util/crash/ContextProvider.java

@@ -0,0 +1,31 @@
+package ru.windcorp.progressia.common.util.crash;
+
+import java.util.Map;
+
+/**
+ * A crash report utility that gathers information about game and system state
+ * when a crash occurs and presents it to the user via the crash report.
+ * ContextProviders are not aware of the nature of the problem, unlike {@link Analyzer}s.
+ * @see Analyzer
+ * @author serega404
+ */
+public interface ContextProvider {
+	
+	/**
+	 * Provides human-readable description of the state of the game and the system.
+	 * This information is {@link Map#put(Object, Object) put} into the provided map
+	 * as key-value pairs. Keys are the characteristic being described, such as "OS Name",
+	 * and should be Strings In Title Case With Spaces.
+	 * If this provider cannot provide any information at this moment, the map is not
+	 * modified.
+	 * @param output the map to append output to
+	 */
+	void provideContext(Map<String, String> output);
+	
+	/**
+	 * Returns this provider's human-readable name.
+	 * It should be A String In Title Case With Spaces.
+	 * @return this provider's name
+	 */
+	String getName();
+}

src/main/java/ru/windcorp/progressia/common/util/crash/CrashReports.java

@@ -0,0 +1,232 @@
+package ru.windcorp.progressia.common.util.crash;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.core.util.StringBuilderWriter;
+
+import ru.windcorp.jputil.chars.StringUtil;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.Writer;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+public class CrashReports {
+
+    private CrashReports() {
+    }
+
+    private static final Path CRASH_REPORTS_PATH = Paths.get("crash-reports");
+
+    private static final Collection<ContextProvider> PROVIDERS = Collections.synchronizedCollection(new ArrayList<>());
+
+    private static final Collection<Analyzer> ANALYZERS = Collections.synchronizedCollection(new ArrayList<>());
+
+    private static final Logger LOGGER = LogManager.getLogger("crash");
+
+    /**
+     * <em>This method never returns.</em>
+     * <p>
+     * TODO document
+     *
+     * @param throwable
+     * @param messageFormat
+     * @param args
+     */
+    public static void report(Throwable throwable, String messageFormat, Object... args) {
+        StringBuilder output = new StringBuilder();
+
+        try {
+            String.format(messageFormat, args);
+        } catch (IllegalFormatException e) {
+            messageFormat = StringUtil.replaceAll(messageFormat, "%", "%%");
+
+            if (args.length != 0) {
+                messageFormat += "\nArgs:";
+                for (Object arg : args) {
+                    try {
+                        messageFormat += " \"" + arg.toString() + "\"";
+                    } catch (Throwable t) {
+                        messageFormat += " exc: \"" + t.getClass().toString() + "\"";
+                    }
+                }
+                args = new Object[0]; // clear args
+            }
+
+            messageFormat += "\nCould not format provided description";
+        }
+
+        appendContextProviders(output);
+        addSeparator(output);
+        if (appendAnalyzers(output, throwable, messageFormat, args)) {
+            addSeparator(output);
+        }
+
+        appendMessageFormat(output, messageFormat, args);
+
+        appendStackTrace(output, throwable);
+
+        export(output.toString());
+
+        System.exit(0);
+    }
+
+    private static void appendContextProviders(StringBuilder output) {
+
+        // Do a local copy to avoid deadlocks -OLEGSHA
+        ContextProvider[] localProvidersCopy = PROVIDERS.toArray(new ContextProvider[PROVIDERS.size()]);
+
+        for (ContextProvider provider : localProvidersCopy) {
+            if (provider == null)
+                continue;
+
+            addSeparator(output);
+
+            try {
+                Map<String, String> buf = new HashMap<>();
+                provider.provideContext(buf);
+
+                if (!buf.isEmpty()) {
+                    output.append("Provider name: ").append(provider.getName()).append("\n");
+                    for (Map.Entry<String, String> entry : buf.entrySet()) {
+                        output.append(entry.getKey()).append(": ").append(entry.getValue()).append("\n");
+                    }
+                }
+            } catch (Throwable t) {
+                output.append("\n");
+
+                String providerName;
+
+                try {
+                    providerName = provider.getName();
+                } catch (Throwable t1) {
+                    providerName = provider.getClass().getName();
+                }
+
+                output.append(providerName).append(" is broken").append("\n");
+                // ContextProvider is broken
+            }
+        }
+    }
+
+    private static boolean appendAnalyzers(StringBuilder output, Throwable throwable, String messageFormat,
+                                           Object[] args) {
+        boolean analyzerResponsesExist = false;
+
+        // Do a local copy to avoid deadlocks -OLEGSHA
+        Analyzer[] localAnalyzersCopy = ANALYZERS.toArray(new Analyzer[ANALYZERS.size()]);
+
+        for (Analyzer analyzer : localAnalyzersCopy) {
+            if (analyzer == null)
+                continue;
+
+            String answer;
+            try {
+                answer = analyzer.analyze(throwable, messageFormat, args);
+
+                if (answer != null && !answer.isEmpty()) {
+                    analyzerResponsesExist = true;
+                    output.append(analyzer.getName()).append(": ").append(answer).append("\n");
+                }
+            } catch (Throwable t) {
+                analyzerResponsesExist = true;
+
+                output.append("\n");
+
+                String analyzerName;
+
+                try {
+                    analyzerName = analyzer.getName();
+                } catch (Throwable t1) {
+                    analyzerName = analyzer.getClass().getName();
+                }
+
+                output.append(analyzerName).append(" is broken").append("\n");
+                // Analyzer is broken
+            }
+        }
+
+        return analyzerResponsesExist;
+    }
+
+    private static void appendMessageFormat(StringBuilder output, String messageFormat, Object... arg) {
+        output.append("Provided description: \n").append(String.format(messageFormat, arg)).append("\n");
+
+        addSeparator(output);
+    }
+
+    private static void appendStackTrace(StringBuilder output, Throwable throwable) {
+        output.append("Stacktrace: \n");
+
+        if (throwable == null) {
+            output.append("no Throwable provided").append("\n");
+            return;
+        }
+
+        // Formatting to a human-readable string
+        Writer sink = new StringBuilderWriter(output);
+        try {
+            throwable.printStackTrace(new PrintWriter(sink));
+        } catch (Exception e) {
+            // PLAK
+        }
+        output.append("\n");
+    }
+
+    private static void export(String report) {
+        try {
+            LOGGER.fatal("/n" + report);
+        } catch (Exception e) {
+            // PLAK
+        }
+
+        System.err.println(report);
+
+        generateCrashReportFiles(report);
+    }
+
+    private static void generateCrashReportFiles(String output) {
+        Date date = new Date();
+        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-HH.mm.ss");
+
+        try {
+            if (!Files.exists(CRASH_REPORTS_PATH))
+                Files.createDirectory(CRASH_REPORTS_PATH);
+
+            createFileForCrashReport(output, CRASH_REPORTS_PATH.toString() + "/latest.log");
+            createFileForCrashReport(output,
+                    CRASH_REPORTS_PATH.toString() + "/crash-" + dateFormat.format(date) + ".log");
+        } catch (Throwable t) {
+            // Crash Report not created
+        }
+    }
+
+    private static void createFileForCrashReport(String buffer, String filename) {
+        try (BufferedWriter writer = Files.newBufferedWriter(Paths.get(filename), StandardCharsets.UTF_8)) {
+            writer.write(buffer);
+        } catch (IOException ex) {
+            // Crash Report not created
+        }
+    }
+
+    public static void registerProvider(ContextProvider provider) {
+        PROVIDERS.add(provider);
+    }
+
+    public static void registerAnalyzer(Analyzer analyzer) {
+        ANALYZERS.add(analyzer);
+    }
+
+    private static void addSeparator(StringBuilder sb) {
+        sb.append(
+                // 80 chars
+                "--------------------------------------------------------------------------------").append("\n");
+    }
+}

src/main/java/ru/windcorp/progressia/common/util/crash/analyzers/OutOfMemoryAnalyzer.java

@@ -0,0 +1,17 @@
+package ru.windcorp.progressia.common.util.crash.analyzers;
+
+import ru.windcorp.progressia.common.util.crash.Analyzer;
+
+public class OutOfMemoryAnalyzer implements Analyzer {
+	@Override
+	public String analyze(Throwable throwable, String messageFormat, Object... args) {
+		if (throwable instanceof OutOfMemoryError)
+			return "Try to add memory to the JVM";
+		return null;
+	}
+
+	@Override
+	public String getName() {
+		return "Out Of Memory Analyzer";
+	}
+}

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

@@ -0,0 +1,20 @@
+package ru.windcorp.progressia.common.util.crash.providers;
+
+import ru.windcorp.progressia.common.util.crash.ContextProvider;
+
+import java.util.Map;
+
+public class OSContextProvider implements ContextProvider {
+
+	@Override
+	public void provideContext(Map<String, String> output) {
+		output.put("OS Name", System.getProperty("os.name"));
+		output.put("OS Version", System.getProperty("os.version"));
+		output.put("OS Architecture", System.getProperty("os.arch"));
+	}
+
+	@Override
+	public String getName() {
+		return "OS Context Provider";
+	}
+}

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

@@ -7,10 +7,11 @@ import java.io.IOException;
 import ru.windcorp.progressia.common.comms.packets.PacketWorldChange;
 import ru.windcorp.progressia.common.state.IOContext;
 import ru.windcorp.progressia.common.util.DataBuffer;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 import ru.windcorp.progressia.common.world.WorldData;
 
 public class PacketEntityChange extends PacketWorldChange {
-	
+
 	private long entityId;
 	private final DataBuffer buffer = new DataBuffer();
 
@@ -21,15 +22,15 @@ public class PacketEntityChange extends PacketWorldChange {
 	protected PacketEntityChange(String id) {
 		super(id);
 	}
-	
+
 	public long getEntityId() {
 		return entityId;
 	}
-	
+
 	public void setEntityId(long entityId) {
 		this.entityId = entityId;
 	}
-	
+
 	public DataBuffer getBuffer() {
 		return buffer;
 	}
@@ -45,19 +46,15 @@ public class PacketEntityChange extends PacketWorldChange {
 	@Override
 	public void apply(WorldData world) {
 		EntityData entity = world.getEntity(getEntityId());
-		
+
 		if (entity == null) {
-			throw new RuntimeException(
-					"Entity with ID " + getEntityId() + " not found"
-			);
+			CrashReports.report(null, "Entity with ID %d not found", getEntityId());
 		}
-		
+
 		try {
 			entity.read(getReader(), IOContext.COMMS);
 		} catch (IOException e) {
-			throw new RuntimeException(
-					"Entity could not be read", e
-			);
+			CrashReports.report(e, "Entity could not be read");
 		}
 	}
 

src/main/java/ru/windcorp/progressia/server/world/ImplementedChangeTracker.java

@@ -11,6 +11,7 @@ import ru.windcorp.progressia.common.comms.packets.PacketWorldChange;
 import ru.windcorp.progressia.common.state.IOContext;
 import ru.windcorp.progressia.common.util.LowOverheadCache;
 import ru.windcorp.progressia.common.util.Vectors;
+import ru.windcorp.progressia.common.util.crash.CrashReports;
 import ru.windcorp.progressia.common.world.Coordinates;
 import ru.windcorp.progressia.common.world.WorldData;
 import ru.windcorp.progressia.common.world.block.BlockData;
@@ -21,19 +22,19 @@ import ru.windcorp.progressia.common.world.tile.TileData;
 import ru.windcorp.progressia.server.Server;
 
 public class ImplementedChangeTracker implements Changer {
-	
+
 	public static interface ChangeImplementation {
 		void applyOnServer(WorldData world);
 		Packet asPacket();
 	}
-	
+
 	private static class SetBlock
 	extends PacketWorldChange
 	implements ChangeImplementation {
 
 		private final Vec3i position = new Vec3i();
 		private BlockData block;
-		
+
 		public SetBlock() {
 			this("Core:SetBlock");
 		}
@@ -41,34 +42,34 @@ public class ImplementedChangeTracker implements Changer {
 		protected SetBlock(String id) {
 			super(id);
 		}
-		
+
 		public void initialize(Vec3i position, BlockData block) {
 			this.position.set(position.x, position.y, position.z);
 			this.block = block;
 		}
-		
+
 		@Override
 		public void applyOnServer(WorldData world) {
 			Vec3i blockInChunk = Vectors.grab3i();
 			Coordinates.convertInWorldToInChunk(position, blockInChunk);
-			
+
 			world.getChunkByBlock(position).setBlock(blockInChunk, block);
-			
+
 			Vectors.release(blockInChunk);
 		}
-		
+
 		@Override
 		public void apply(WorldData world) {
 			applyOnServer(world);
 		}
-		
+
 		@Override
 		public Packet asPacket() {
 			return this;
 		}
-		
+
 	}
-	
+
 	private static class AddOrRemoveTile
 	extends PacketWorldChange
 	implements ChangeImplementation {
@@ -76,9 +77,9 @@ public class ImplementedChangeTracker implements Changer {
 		private final Vec3i position = new Vec3i();
 		private BlockFace face;
 		private TileData tile;
-		
+
 		private boolean shouldAdd;
-		
+
 		public AddOrRemoveTile() {
 			this("Core:AddOrRemoveTile");
 		}
@@ -86,7 +87,7 @@ public class ImplementedChangeTracker implements Changer {
 		protected AddOrRemoveTile(String id) {
 			super(id);
 		}
-		
+
 		public void initialize(
 				Vec3i position, BlockFace face,
 				TileData tile,
@@ -97,52 +98,51 @@ public class ImplementedChangeTracker implements Changer {
 			this.tile = tile;
 			this.shouldAdd = shouldAdd;
 		}
-		
+
 		@Override
 		public void applyOnServer(WorldData world) {
 			Vec3i blockInChunk = Vectors.grab3i();
 			Coordinates.convertInWorldToInChunk(position, blockInChunk);
-			
-			List<TileData> tiles = world.getChunkByBlock(position)
-					.getTiles(blockInChunk, face);
-			
+
+			List<TileData> tiles = world.getChunkByBlock(position).getTiles(blockInChunk, face);
+
 			if (shouldAdd) {
 				tiles.add(tile);
 			} else {
 				tiles.remove(tile);
 			}
-			
+
 			Vectors.release(blockInChunk);
 		}
-		
+
 		@Override
 		public void apply(WorldData world) {
 			applyOnServer(world);
 		}
-		
+
 		@Override
 		public Packet asPacket() {
 			return this;
 		}
-		
+
 	}
-	
+
 	private static class ChangeEntity implements ChangeImplementation {
-		
+
 		private EntityData entity;
 		private Change<?> change;
-		
+
 		private final PacketEntityChange packet = new PacketEntityChange();
 
 		public <T extends EntityData> void set(T entity, Change<T> change) {
 			this.entity = entity;
 			this.change = change;
-			
+
 			packet.setEntityId(entity.getEntityId());
 			try {
 				entity.write(packet.getWriter(), IOContext.COMMS);
 			} catch (IOException e) {
-				throw new RuntimeException(e);
+				CrashReports.report(e, "Could not write entity %s", entity);
 			}
 		}
 
@@ -150,11 +150,11 @@ public class ImplementedChangeTracker implements Changer {
 		@Override
 		public void applyOnServer(WorldData world) {
 			((Change<EntityData>) change).change(entity);
-			
+
 			try {
 				entity.write(packet.getWriter(), IOContext.COMMS);
 			} catch (IOException e) {
-				throw new RuntimeException("Entity could not be written", e);
+				CrashReports.report(e, "Could not write entity %s", entity);
 			}
 		}
 
@@ -162,11 +162,11 @@ public class ImplementedChangeTracker implements Changer {
 		public Packet asPacket() {
 			return packet;
 		}
-		
+
 	}
 
 	private final List<ChangeImplementation> changes = new ArrayList<>(1024);
-	
+
 	private final LowOverheadCache<SetBlock> setBlockCache =
 			new LowOverheadCache<>(SetBlock::new);
 	
@@ -182,21 +182,21 @@ public class ImplementedChangeTracker implements Changer {
 		change.initialize(pos, block);
 		changes.add(change);
 	}
-	
+
 	@Override
 	public void addTile(Vec3i block, BlockFace face, TileData tile) {
 		AddOrRemoveTile change = addOrRemoveTileCache.grab();
 		change.initialize(block, face, tile, true);
 		changes.add(change);
 	}
-	
+
 	@Override
 	public void removeTile(Vec3i block, BlockFace face, TileData tile) {
 		AddOrRemoveTile change = addOrRemoveTileCache.grab();
 		change.initialize(block, face, tile, false);
 		changes.add(change);
 	}
-	
+
 	@Override
 	public <T extends EntityData> void changeEntity(
 			T entity, Change<T> change
@@ -205,7 +205,7 @@ public class ImplementedChangeTracker implements Changer {
 		changeRecord.set(entity, change);
 		changes.add(changeRecord);
 	}
-	
+
 	public void applyChanges(Server server) {
 		changes.forEach(c -> c.applyOnServer(server.getWorld().getData()));
 		changes.stream().map(ChangeImplementation::asPacket).filter(Objects::nonNull).forEach(
@@ -214,7 +214,7 @@ public class ImplementedChangeTracker implements Changer {
 		changes.forEach(this::release);
 		changes.clear();
 	}
-	
+
 	private void release(ChangeImplementation c) {
 		if (c instanceof SetBlock) {
 			setBlockCache.release((SetBlock) c);

src/main/resources/log4j2.xml

@@ -13,18 +13,14 @@
 
         <RollingFile name="FileLog" fileName="${APP_LOG_ROOT}/game.log"
                      filePattern="${APP_LOG_ROOT}/game-%d{yyyy-MM-dd}-%i.log">
-            <LevelRangeFilter minLevel="FATAL" maxLevel="INFO" onMatch="ACCEPT" onMismatch="DENY"/>
             <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
             <Policies>
                 <SizeBasedTriggeringPolicy size="18MB" />
             </Policies>
-            <DefaultRolloverStrategy max="10"/>
         </RollingFile>
-
     </Appenders>
 
     <Loggers>
-
         <Root level="info">
             <AppenderRef ref="FileLog"  />
             <AppenderRef ref="Console"  />