Optimize Chunk Storage, made a slight FPS boost

src/main/java/net/minecraft/src/ChunkLoader.java

@@ -1,5 +1,6 @@
 package net.minecraft.src;
 
+import java.io.BufferedOutputStream;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.DataInputStream;
@@ -23,14 +24,14 @@ public class ChunkLoader implements IChunkLoader {
 		int unsignedX = x + 30233088;
 		int unsignedZ = z + 30233088;
 		int radix = CHUNK_CHARS.length();
-		char[] path = new char[10];
+		StringBuilder path = new StringBuilder(10);
 		for(int i = 0; i < 5; ++i) {
-			path[i * 2] = CHUNK_CHARS.charAt(unsignedX % radix);
+			path.append(CHUNK_CHARS.charAt(unsignedX % radix));
 			unsignedX /= radix;
-			path[i * 2 + 1] = CHUNK_CHARS.charAt(unsignedZ % radix);
+			path.append(CHUNK_CHARS.charAt(unsignedZ % radix));
 			unsignedZ /= radix;
 		}
-		return new String(path);
+		return path.toString();
 	}
 
 	public Chunk loadChunk(World var1, int x, int z) {
@@ -67,14 +68,16 @@ public class ChunkLoader implements IChunkLoader {
 		NBTTagCompound toSave = new NBTTagCompound();
 		storeChunkInCompound(var2, var1, toSave);
 		ByteArrayOutputStream bao = new ByteArrayOutputStream(131072);
-		try {
+		try (DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(bao))) {
-			NBTBase.writeNamedTag(toSave, new DataOutputStream(bao));
+			NBTBase.writeNamedTag(toSave, dos);
+			dos.flush();
+			byte[] data = bao.toByteArray();
+			LWJGLMain.writeFile(saveDir + "/" + chunkFileForXZ(var2.xPosition, var2.zPosition), data);
 		} catch (IOException e) {
 			System.err.println("Failed to serialize chunk at [" + var2.xPosition + ", " + var2.zPosition + "] to byte array");
 			e.printStackTrace();
 			return;
 		}
-		LWJGLMain.writeFile(saveDir + "/" + chunkFileForXZ(var2.xPosition, var2.zPosition), bao.toByteArray());
 	}
 
 	public void storeChunkInCompound(Chunk var1, World var2, NBTTagCompound var3) {

src/main/java/net/minecraft/src/Frustrum.java

@@ -1,22 +1,28 @@
 package net.minecraft.src;
 
 public class Frustrum implements ICamera {
-	private ClippingHelper clippingHelper = ClippingHelperImplementation.getInstance();
+    private final ClippingHelper clippingHelper = ClippingHelperImplementation.getInstance();
     private double xPosition;
     private double yPosition;
     private double zPosition;
 
-	public void setPosition(double var1, double var3, double var5) {
+    public void setPosition(double x, double y, double z) {
-		this.xPosition = var1;
+        xPosition = x;
-		this.yPosition = var3;
+        yPosition = y;
-		this.zPosition = var5;
+        zPosition = z;
     }
 
-	public boolean isBoxInFrustum(double var1, double var3, double var5, double var7, double var9, double var11) {
+    public boolean isBoxInFrustum(double minX, double minY, double minZ, double maxX, double maxY, double maxZ) {
-		return this.clippingHelper.isBoxInFrustum(var1 - this.xPosition, var3 - this.yPosition, var5 - this.zPosition, var7 - this.xPosition, var9 - this.yPosition, var11 - this.zPosition);
+    	minX -= xPosition;
+    	minY -= yPosition;
+    	minZ -= zPosition;
+    	maxX -= xPosition;
+    	maxY -= yPosition;
+    	maxZ -= zPosition;
+        return clippingHelper.isBoxInFrustum(minX, minY, minZ, maxX, maxY, maxZ);
     }
 
-	public boolean isBoundingBoxInFrustum(AxisAlignedBB var1) {
+    public boolean isBoundingBoxInFrustum(AxisAlignedBB boundingBox) {
-		return this.isBoxInFrustum(var1.minX, var1.minY, var1.minZ, var1.maxX, var1.maxY, var1.maxZ);
+        return isBoxInFrustum(boundingBox.minX, boundingBox.minY, boundingBox.minZ, boundingBox.maxX, boundingBox.maxY, boundingBox.maxZ);
     }
 }

src/main/java/net/minecraft/src/Tessellator.java

@@ -7,88 +7,25 @@ import org.teavm.jso.typedarrays.Int32Array;
 
 public class Tessellator {
 	
-	/** The byte buffer used for GL allocation. */
 	private Int32Array intBuffer;
 	private Float32Array floatBuffer;
-
-	/**
-	 * The number of vertices to be drawn in the next draw call. Reset to 0 between
-	 * draw calls.
-	 */
 	private int vertexCount = 0;
-
-	/** The first coordinate to be used for the texture. */
 	private float textureU;
-
-	/** The second coordinate to be used for the texture. */
 	private float textureV;
-
-	/** The color (RGBA) value to be used for the following draw call. */
 	private int color;
-
-	/**
-	 * Whether the current draw object for this tessellator has color values.
-	 */
 	private boolean hasColor = false;
-
-	/**
-	 * Whether the current draw object for this tessellator has texture coordinates.
-	 */
 	private boolean hasTexture = false;
-
-	/**
-	 * Whether the current draw object for this tessellator has normal values.
-	 */
-	private boolean hasNormals = false;
-
-	/** The index into the raw buffer to be used for the next data. */
 	private int rawBufferIndex = 0;
-
-	/**
-	 * The number of vertices manually added to the given draw call. This differs
-	 * from vertexCount because it adds extra vertices when converting quads to
-	 * triangles.
-	 */
 	private int addedVertices = 0;
-
-	/** Disables all color information for the following draw call. */
 	private boolean isColorDisabled = false;
-
-	/** The draw mode currently being used by the tessellator. */
 	private int drawMode;
-
-	/**
-	 * An offset to be applied along the x-axis for all vertices in this draw call.
-	 */
 	private double xOffset;
-
-	/**
-	 * An offset to be applied along the y-axis for all vertices in this draw call.
-	 */
 	private double yOffset;
-
-	/**
-	 * An offset to be applied along the z-axis for all vertices in this draw call.
-	 */
 	private double zOffset;
-
+	public static final Tessellator instance = new Tessellator(524288);
-	/** The normal to be applied to the face being drawn. */
-	private int normal;
-
-	/** The static instance of the Tessellator. */
-	public static final Tessellator instance = new Tessellator(525000);
-
-	/** Whether this tessellator is currently in draw mode. */
 	private boolean isDrawing = false;
 
-	/** Whether we are currently using VBO or not. */
-	private boolean useVBO = false;
-
-	/** The size of the buffers used (in integers). */
-	private int bufferSize;
-
 	private Tessellator(int par1) {
-		this.bufferSize = par1;
 		ArrayBuffer a = ArrayBuffer.create(par1 * 4);
 		this.intBuffer = Int32Array.create(a);
 		this.floatBuffer = Float32Array.create(a);
@@ -114,10 +51,6 @@ public class Tessellator {
 					GL11.glEnableVertexAttrib(GL11.GL_COLOR_ARRAY);
 				}
 				
-				if (this.hasNormals) {
-					GL11.glEnableVertexAttrib(GL11.GL_NORMAL_ARRAY);
-				}
-				
 				GL11.glDrawArrays(this.drawMode, 0, this.vertexCount, Int32Array.create(intBuffer.getBuffer(), 0, this.vertexCount * 7));
 				
 				if (this.hasTexture) {
@@ -127,10 +60,6 @@ public class Tessellator {
 				if (this.hasColor) {
 					GL11.glDisableVertexAttrib(GL11.GL_COLOR_ARRAY);
 				}
-
-				if (this.hasNormals) {
-					GL11.glDisableVertexAttrib(GL11.GL_NORMAL_ARRAY);
-				}
 			}
 
 			int var1 = this.rawBufferIndex * 4;
@@ -167,7 +96,6 @@ public class Tessellator {
 		this.isDrawing = true;
 		this.reset();
 		this.drawMode = par1;
-		this.hasNormals = false;
 		this.hasColor = false;
 		this.hasTexture = false;
 		this.isColorDisabled = false;
@@ -281,10 +209,6 @@ public class Tessellator {
 			intBuffer0.set(bufferIndex + 5, this.color);
 		}
 		
-		if (this.hasNormals) {
-			intBuffer0.set(bufferIndex + 6, this.normal);
-		}
-		
 		this.rawBufferIndex += 7;
 	}