From a13d2700664c3333e72da26c2ea598c4cad882f2 Mon Sep 17 00:00:00 2001 From: Aikar Date: Thu, 3 Mar 2016 02:07:55 -0600 Subject: [PATCH] Optimize isValidLocation, getType and getBlockData for inling Hot methods, so reduce # of instructions for the method. Move is valid location test to the BlockPosition class so that it can access local variables. Replace all calls to the new place to the unnecessary forward. Optimize getType and getBlockData to manually inline and optimize the calls diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java index 4048937c63..680764b342 100644 --- a/src/main/java/net/minecraft/server/BaseBlockPosition.java +++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java @@ -9,6 +9,14 @@ public class BaseBlockPosition implements Comparable { private final int a; private final int b; private final int c; + // Paper start + public boolean isValidLocation() { + return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256; + } + public boolean isInvalidYLocation() { + return b < 0 || b >= 256; + } + // Paper end public BaseBlockPosition(int i, int j, int k) { this.a = i; diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java index 5ed34cf7e3..f4ed98d2d9 100644 --- a/src/main/java/net/minecraft/server/BlockPosition.java +++ b/src/main/java/net/minecraft/server/BlockPosition.java @@ -239,6 +239,16 @@ public class BlockPosition extends BaseBlockPosition { protected int b; protected int c; protected int d; + // Paper start + @Override + public boolean isValidLocation() { + return b >= -30000000 && d >= -30000000 && b < 30000000 && d < 30000000 && c >= 0 && c < 256; + } + @Override + public boolean isInvalidYLocation() { + return c < 0 || c >= 256; + } + // Paper end public MutableBlockPosition() { this(0, 0, 0); diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java index b006282f38..a36034cc52 100644 --- a/src/main/java/net/minecraft/server/Chunk.java +++ b/src/main/java/net/minecraft/server/Chunk.java @@ -421,12 +421,24 @@ public class Chunk implements IChunkAccess { return this.getBlockData(i, j, k).b(this.world, new BlockPosition(i, j, k)); } - public IBlockData getBlockData(BlockPosition blockposition) { return getType(blockposition); } // Paper - public IBlockData getType(BlockPosition blockposition) { + // Paper start - Optimize getBlockData to reduce instructions + public final IBlockData getBlockData(BlockPosition pos) { return getBlockData(pos.getX(), pos.getY(), pos.getZ()); } // Paper + public final IBlockData getType(BlockPosition blockposition) { return this.getBlockData(blockposition.getX(), blockposition.getY(), blockposition.getZ()); } - public IBlockData getBlockData(int i, int j, int k) { + public final IBlockData getBlockData(final int x, final int y, final int z) { + // Method body / logic copied from below + final int i = y >> 4; + if (y >= 0 && i < this.sections.length && this.sections[i] != null) { + // Inlined ChunkSection.getType() and DataPaletteBlock.a(int,int,int) + return this.sections[i].blockIds.a((y & 15) << 8 | (z & 15) << 4 | x & 15); + } + return Blocks.AIR.getBlockData(); + } + + public IBlockData getBlockData_unused(int i, int j, int k) { + // Paper end if (this.world.S() == WorldType.DEBUG_ALL_BLOCK_STATES) { IBlockData iblockdata = null; diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java index 274c449480..7e4c79a1ce 100644 --- a/src/main/java/net/minecraft/server/ChunkSection.java +++ b/src/main/java/net/minecraft/server/ChunkSection.java @@ -6,7 +6,7 @@ public class ChunkSection { private int nonEmptyBlockCount; private int tickingBlockCount; private int e; - private final DataPaletteBlock blockIds; + final DataPaletteBlock blockIds; // Paper - package private NibbleArray emittedLight; private NibbleArray skyLight; diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java index 275978de83..cad60e4f8b 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -263,11 +263,11 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } public static boolean isValidLocation(BlockPosition blockposition) { - return !k(blockposition) && blockposition.getX() >= -30000000 && blockposition.getZ() >= -30000000 && blockposition.getX() < 30000000 && blockposition.getZ() < 30000000; + return blockposition.isValidLocation(); // Paper } public static boolean k(BlockPosition blockposition) { - return blockposition.getY() < 0 || blockposition.getY() >= 256; + return blockposition.isInvalidYLocation(); // Paper } public boolean isEmpty(BlockPosition blockposition) { @@ -284,7 +284,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc // test if meets light level, return faster // logic copied from below public boolean isLightLevel(BlockPosition blockposition, int level) { - if (isValidLocation(blockposition)) { + if (blockposition.isValidLocation()) { if (this.getType(blockposition).c(this, blockposition)) { int sky = getSkylightSubtracted(); if (this.getLightLevel(blockposition.up(), sky) >= level) { @@ -331,7 +331,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc // CraftBukkit end Chunk chunk = this.getChunkIfLoaded(blockposition); if (chunk != null) { - return isValidLocation(blockposition) ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData(); + return blockposition.isValidLocation() ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData(); // Paper } return null; } @@ -386,7 +386,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc return true; } // CraftBukkit end - if (k(blockposition)) { + if (blockposition.isInvalidYLocation()) { // Paper return false; } else if (!this.isClientSide && this.worldData.getType() == WorldType.DEBUG_ALL_BLOCK_STATES) { return false; @@ -707,11 +707,11 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc blockposition = new BlockPosition(blockposition.getX(), 0, blockposition.getZ()); } - return !isValidLocation(blockposition) ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition)); + return !blockposition.isValidLocation() ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition)); // Paper } public void a(EnumSkyBlock enumskyblock, BlockPosition blockposition, int i) { - if (isValidLocation(blockposition)) { + if (blockposition.isValidLocation()) { // Paper if (this.isLoaded(blockposition)) { this.getChunkAtWorldCoords(blockposition).a(enumskyblock, blockposition, i); this.m(blockposition); @@ -738,7 +738,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } } // CraftBukkit end - if (k(blockposition)) { + if (blockposition.isInvalidYLocation()) { // Paper return Blocks.VOID_AIR.getBlockData(); } else { Chunk chunk = this.getChunkAtWorldCoords(blockposition); @@ -748,7 +748,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } public Fluid b(BlockPosition blockposition) { - if (k(blockposition)) { + if (blockposition.isInvalidYLocation()) { // Paper return FluidTypes.a.i(); } else { Chunk chunk = this.getChunkAtWorldCoords(blockposition); @@ -1816,7 +1816,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc public Map capturedTileEntities = Maps.newHashMap(); @Nullable public TileEntity getTileEntity(BlockPosition blockposition) { - if (k(blockposition)) { + if (blockposition.isInvalidYLocation()) { // Paper return null; } else { // CraftBukkit start @@ -1857,7 +1857,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } public void setTileEntity(BlockPosition blockposition, @Nullable TileEntity tileentity) { - if (!k(blockposition)) { + if (!blockposition.isInvalidYLocation()) { // Paper if (tileentity != null && !tileentity.x()) { // CraftBukkit start if (captureBlockStates) { @@ -1918,7 +1918,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } public boolean p(BlockPosition blockposition) { - if (k(blockposition)) { + if (blockposition.isInvalidYLocation()) { // Paper return false; } else { Chunk chunk = this.chunkProvider.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4, false, false); -- 2.19.0