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Paper/Spigot-Server-Patches/0070-Add-World-Util-Methods.patch

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From 486b51b81a7ca05e4cdd916e72e92986452a7acb Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
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 1131a092af..d86b925f0d 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -632,6 +632,7 @@ 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/World.java b/src/main/java/net/minecraft/server/World.java
index 879f2fe844..fd6f070417 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -84,7 +84,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
public final List<Entity> k = Lists.newArrayList();
protected final IntHashMap<Entity> 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;
@@ -274,6 +274,77 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
return this.getType(blockposition).isAir();
}
+ // Paper start
+ 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 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);
}
--
2.18.0