From a6d6f8889148feda3f6229367dc1ae53b488a1a7 Mon Sep 17 00:00:00 2001 From: Aikar Date: Fri, 18 Mar 2016 20:16:03 -0400 Subject: [PATCH] Add World Util Methods Methods that can be used for other patches to help improve logic. diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java index 446e464b7..dcb036f31 100644 --- a/src/main/java/net/minecraft/server/Chunk.java +++ b/src/main/java/net/minecraft/server/Chunk.java @@ -637,6 +637,7 @@ public class Chunk implements IChunkAccess { } } + public final int getLightSubtracted(BlockPosition blockposition, int i) { return this.a(blockposition, i); } // Paper - OBFHELPER public int a(BlockPosition blockposition, int i) { return this.a(blockposition, i, this.world.o().g()); } diff --git a/src/main/java/net/minecraft/server/IWorldReader.java b/src/main/java/net/minecraft/server/IWorldReader.java index 237a34082..cf53118cc 100644 --- a/src/main/java/net/minecraft/server/IWorldReader.java +++ b/src/main/java/net/minecraft/server/IWorldReader.java @@ -38,6 +38,22 @@ public interface IWorldReader extends IBlockAccess { } int getLightLevel(BlockPosition blockposition, int i); + // Paper start + default @Nullable + IBlockData getTypeIfLoaded(BlockPosition var1) { + return isLoaded(var1) ? getType(var1) : null; + } + + default @Nullable + Block getBlockIfLoaded(BlockPosition var1) { + return isLoaded(var1) ? getType(var1).getBlock() : null; + } + + default @Nullable + Material getMaterialIfLoaded(BlockPosition var1) { + return isLoaded(var1) ? getType(var1).getMaterial() : null; + } + // Paper end boolean isChunkLoaded(int i, int j, boolean flag); diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java index ae7e4a7fa..96442ad7d 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -79,7 +79,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc public final List k = Lists.newArrayList(); protected final IntHashMap entitiesById = new IntHashMap<>(); private final long F = 16777215L; - private int G; + private int G; public int getSkylightSubtracted() { return this.G; } public void setSkylightSubtracted(int value) { this.G = value;} // Paper - OBFHELPER protected int m = (new Random()).nextInt(); protected final int n = 1013904223; protected float o; @@ -269,6 +269,83 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc return this.getType(blockposition).isAir(); } + // Paper start + public boolean isLoadedAndInBounds(BlockPosition blockposition) { + return getWorldBorder().isInBounds(blockposition) && getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null; + } + public Chunk getChunkIfLoaded(BlockPosition blockposition) { + return getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4); + } + // test if meets light level, return faster + // logic copied from below + public boolean isLightLevel(BlockPosition blockposition, int level) { + if (isValidLocation(blockposition)) { + if (this.getType(blockposition).c(this, blockposition)) { + int sky = getSkylightSubtracted(); + if (this.getLightLevel(blockposition.up(), sky) >= level) { + return true; + } + if (this.getLightLevel(blockposition.east(), sky) >= level) { + return true; + } + if (this.getLightLevel(blockposition.west(), sky) >= level) { + return true; + } + if (this.getLightLevel(blockposition.south(), sky) >= level) { + return true; + } + if (this.getLightLevel(blockposition.north(), sky) >= level) { + return true; + } + return false; + } else { + if (blockposition.getY() >= 256) { + blockposition = new BlockPosition(blockposition.getX(), 255, blockposition.getZ()); + } + + Chunk chunk = this.getChunkAtWorldCoords(blockposition); + return chunk.getLightSubtracted(blockposition, this.getSkylightSubtracted()) >= level; + } + } else { + return true; + } + } + // reduces need to do isLoaded before getType + public IBlockData getTypeIfLoadedAndInBounds(BlockPosition blockposition) { + return getWorldBorder().isInBounds(blockposition) ? getTypeIfLoaded(blockposition) : null; + } + public IBlockData getTypeIfLoaded(BlockPosition blockposition) { + // CraftBukkit start - tree generation + if (captureTreeGeneration) { + for (CraftBlockState previous : capturedBlockStates) { + if (previous.getX() == blockposition.getX() && previous.getY() == blockposition.getY() && previous.getZ() == blockposition.getZ()) { + return previous.getHandle(); + } + } + } + // CraftBukkit end + Chunk chunk = this.getChunkIfLoaded(blockposition); + if (chunk != null) { + return isValidLocation(blockposition) ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData(); + } + return null; + } + public Block getBlockIfLoaded(BlockPosition blockposition) { + IBlockData type = getTypeIfLoaded(blockposition); + if (type == null) { + return null; + } + return type.getBlock(); + } + public Material getMaterialIfLoaded(BlockPosition blockposition) { + IBlockData type = getTypeIfLoaded(blockposition); + if (type == null) { + return null; + } + return type.getBlock().material; + } + // Paper end + public Chunk getChunkAtWorldCoords(BlockPosition blockposition) { return this.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4); } -- 2.20.1