From 9bea77a9d0eb0bba8a3c97c3782630e66e802bd5 Mon Sep 17 00:00:00 2001 From: Aikar Date: Fri, 18 Mar 2016 21:22:56 -0400 Subject: [PATCH] Optimized Light Level Comparisons Use an optimized method to test if a block position meets a desired light level. This method benefits from returning as soon as the desired light level matches. diff --git a/src/main/java/net/minecraft/server/BlockCrops.java b/src/main/java/net/minecraft/server/BlockCrops.java index 1506c9ede0..6ae6fc3ecb 100644 --- a/src/main/java/net/minecraft/server/BlockCrops.java +++ b/src/main/java/net/minecraft/server/BlockCrops.java @@ -44,7 +44,7 @@ public class BlockCrops extends BlockPlant implements IBlockFragilePlantElement public void a(IBlockData iblockdata, World world, BlockPosition blockposition, Random random) { super.a(iblockdata, world, blockposition, random); - if (world.getLightLevel(blockposition.up(), 0) >= 9) { + if (world.isLightLevel(blockposition.up(), 9)) { // Paper int i = this.k(iblockdata); if (i < this.e()) { diff --git a/src/main/java/net/minecraft/server/BlockSapling.java b/src/main/java/net/minecraft/server/BlockSapling.java index 42478d1fed..7426d14cbf 100644 --- a/src/main/java/net/minecraft/server/BlockSapling.java +++ b/src/main/java/net/minecraft/server/BlockSapling.java @@ -30,7 +30,7 @@ public class BlockSapling extends BlockPlant implements IBlockFragilePlantElemen public void a(IBlockData iblockdata, World world, BlockPosition blockposition, Random random) { super.a(iblockdata, world, blockposition, random); - if (world.getLightLevel(blockposition.up()) >= 9 && random.nextInt(Math.max(2, (int) (((100.0F / world.spigotConfig.saplingModifier) * 7) + 0.5F))) == 0) { // Spigot + if (world.isLightLevel(blockposition.up(), 9) && random.nextInt(Math.max(2, (int) (((100.0F / world.spigotConfig.saplingModifier) * 7) + 0.5F))) == 0) { // Spigot // Paper // CraftBukkit start world.captureTreeGeneration = true; // CraftBukkit end diff --git a/src/main/java/net/minecraft/server/BlockStem.java b/src/main/java/net/minecraft/server/BlockStem.java index 4fc8c5d3c6..0fc39bb9fb 100644 --- a/src/main/java/net/minecraft/server/BlockStem.java +++ b/src/main/java/net/minecraft/server/BlockStem.java @@ -27,7 +27,7 @@ public class BlockStem extends BlockPlant implements IBlockFragilePlantElement { public void a(IBlockData iblockdata, World world, BlockPosition blockposition, Random random) { super.a(iblockdata, world, blockposition, random); - if (world.getLightLevel(blockposition.up(), 0) >= 9) { + if (world.isLightLevel(blockposition.up(), 9)) { // Paper float f = BlockCrops.a((Block) this, (IBlockAccess) world, blockposition); if (random.nextInt((int) ((100.0F / (this == Blocks.PUMPKIN_STEM ? world.spigotConfig.pumpkinModifier : world.spigotConfig.melonModifier)) * (25.0F / f)) + 1) == 0) { // Spigot diff --git a/src/main/java/net/minecraft/server/EntityMonster.java b/src/main/java/net/minecraft/server/EntityMonster.java index a3449e9a8d..5f60bf04e6 100644 --- a/src/main/java/net/minecraft/server/EntityMonster.java +++ b/src/main/java/net/minecraft/server/EntityMonster.java @@ -65,9 +65,18 @@ public abstract class EntityMonster extends EntityCreature implements IMonster { if (this.world.getBrightness(EnumSkyBlock.SKY, blockposition) > this.random.nextInt(32)) { return false; } else { - int i = this.world.Y() ? this.world.d(blockposition, 10) : this.world.getLightLevel(blockposition); - - return i <= this.random.nextInt(8); + // Paper start - optimized light check, returns faster + boolean passes; + if (this.world.Y()) { + final int orig = world.getSkylightSubtracted(); + world.setSkylightSubtracted(10); + passes = !this.world.isLightLevel(blockposition, this.random.nextInt(8)); + world.setSkylightSubtracted(orig); + } else { + passes = !this.world.isLightLevel(blockposition, this.random.nextInt(8)); + } + return passes; + // Paper end } } diff --git a/src/main/java/net/minecraft/server/EntityZombie.java b/src/main/java/net/minecraft/server/EntityZombie.java index 1ab3072cc3..e5170bff5b 100644 --- a/src/main/java/net/minecraft/server/EntityZombie.java +++ b/src/main/java/net/minecraft/server/EntityZombie.java @@ -263,7 +263,7 @@ public class EntityZombie extends EntityMonster { int j1 = j + MathHelper.nextInt(this.random, 7, 40) * MathHelper.nextInt(this.random, -1, 1); int k1 = k + MathHelper.nextInt(this.random, 7, 40) * MathHelper.nextInt(this.random, -1, 1); - if (this.world.getType(new BlockPosition(i1, j1 - 1, k1)).q() && this.world.getLightLevel(new BlockPosition(i1, j1, k1)) < 10) { + if (this.world.getType(new BlockPosition(i1, j1 - 1, k1)).q() && !this.world.isLightLevel(new BlockPosition(i1, j1, k1), 10)) { // Paper entityzombie.setPosition((double) i1, (double) j1, (double) k1); if (!this.world.isPlayerNearby((double) i1, (double) j1, (double) k1, 7.0D) && this.world.a_(entityzombie, entityzombie.getBoundingBox()) && this.world.getCubes(entityzombie, entityzombie.getBoundingBox()) && !this.world.containsLiquid(entityzombie.getBoundingBox())) { this.world.addEntity(entityzombie, CreatureSpawnEvent.SpawnReason.REINFORCEMENTS); // CraftBukkit -- 2.18.0