From 0000000000000000000000000000000000000000 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/World.java b/src/main/java/net/minecraft/server/World.java
index db637b5f9ed4180844ddc12dc53050a89a4d163d..bfa9b3482251341947da8e6c4def762bf7d725b7 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -245,11 +245,27 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
     }
 
     @Override
-    public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+    public final Fluid getFluidIfLoaded(BlockPosition blockposition) {
         IChunkAccess chunk = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
 
         return chunk == null ? null : chunk.getFluid(blockposition);
     }
+
+    public final boolean isLoadedAndInBounds(BlockPosition blockposition) { // Paper - final for inline
+        return getWorldBorder().isInBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
+    }
+
+    public Chunk getChunkIfLoaded(int x, int z) { // Overridden in WorldServer for ABI compat which has final
+        return ((WorldServer) this).getChunkProvider().getChunkAtIfLoadedImmediately(x, z);
+    }
+    public final Chunk getChunkIfLoaded(BlockPosition blockposition) {
+        return ((WorldServer) this).getChunkProvider().getChunkAtIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+    }
+
+    //  reduces need to do isLoaded before getType
+    public final IBlockData getTypeIfLoadedAndInBounds(BlockPosition blockposition) {
+        return getWorldBorder().isInBounds(blockposition) ? getTypeIfLoaded(blockposition) : null;
+    }
     // Paper end
 
     @Override
diff --git a/src/main/java/net/minecraft/server/WorldBorder.java b/src/main/java/net/minecraft/server/WorldBorder.java
index bb0f30f182856d2701fde9b1a65eeb987462104a..717f495abd63218bb7ce9241e7cfeac809ef02de 100644
--- a/src/main/java/net/minecraft/server/WorldBorder.java
+++ b/src/main/java/net/minecraft/server/WorldBorder.java
@@ -21,6 +21,7 @@ public class WorldBorder {
 
     public WorldBorder() {}
 
+    public final boolean isInBounds(BlockPosition blockposition) { return this.a(blockposition); } // Paper - OBFHELPER
     public boolean a(BlockPosition blockposition) {
         return (double) (blockposition.getX() + 1) > this.e() && (double) blockposition.getX() < this.g() && (double) (blockposition.getZ() + 1) > this.f() && (double) blockposition.getZ() < this.h();
     }
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index ef7b76c4a9b5bafa4780922558538bbdcd783120..01fde964fa2fae3cfefc4b9e8e2c59a997d09539 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -88,7 +88,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
     public final Convertable.ConversionSession convertable;
     public final UUID uuid;
 
-    public Chunk getChunkIfLoaded(int x, int z) {
+    @Override public Chunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
         return this.chunkProvider.getChunkAt(x, z, false);
     }