From 00e5dc742dc2b80b9d43600cbe44b087c648c3d8 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 22 Mar 2016 23:41:34 -0400
Subject: [PATCH] Optimize isValidLocation for inlining

Move test to the blockPosition class so that it can access local variables.

Replace all calls to the new place to the unnecessary forward.

diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
index d60e755..9114388 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -10,6 +10,11 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
     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;
+    }
+    // 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 99fcf4c..be34dcd 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -326,6 +326,12 @@ public class BlockPosition extends BaseBlockPosition {
         protected int b;
         protected int c;
         protected int d;
+        // Paper start
+        @Override
+        public boolean isValidLocation() {
+            return this.getX() >= -30000000 && this.getZ() >= -30000000 && this.getX() < 30000000 && this.getZ() < 30000000 && this.getY() >= 0 && this.getY() < 256;
+        }
+        // Paper end
 
         public MutableBlockPosition() {
             this(0, 0, 0);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 133d4e2..718215c 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -274,8 +274,8 @@ public abstract class World implements IBlockAccess {
         return this.getType(blockposition1);
     }
 
-    private boolean isValidLocation(BlockPosition blockposition) {
-        return !this.E(blockposition) && blockposition.getX() >= -30000000 && blockposition.getZ() >= -30000000 && blockposition.getX() < 30000000 && blockposition.getZ() < 30000000;
+    private static boolean isValidLocation(BlockPosition blockposition) { // Paper
+        return blockposition.isValidLocation(); // Paper
     }
 
     private boolean E(BlockPosition blockposition) {
@@ -639,7 +639,7 @@ public abstract class World implements IBlockAccess {
     // Paper start - 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).f()) {
                 if (this.c(blockposition.up(), false) >= level) {
                     return true;
@@ -753,7 +753,7 @@ public abstract class World implements IBlockAccess {
             blockposition = new BlockPosition(blockposition.getX(), 0, blockposition.getZ());
         }
 
-        if (!this.isValidLocation(blockposition)) {
+        if (!blockposition.isValidLocation()) { // Paper
             return enumskyblock.c;
         } else if (!this.isLoaded(blockposition)) {
             return enumskyblock.c;
@@ -765,7 +765,7 @@ public abstract class World implements IBlockAccess {
     }
 
     public void a(EnumSkyBlock enumskyblock, BlockPosition blockposition, int i) {
-        if (this.isValidLocation(blockposition)) {
+        if (blockposition.isValidLocation()) { // Paper
             if (this.isLoaded(blockposition)) {
                 Chunk chunk = this.getChunkAtWorldCoords(blockposition);
 
@@ -801,7 +801,7 @@ public abstract class World implements IBlockAccess {
         // CraftBukkit end
         Chunk chunk = this.getChunkIfLoaded(blockposition);
         if (chunk != null) {
-            return this.isValidLocation(blockposition) ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData();
+            return blockposition.isValidLocation() ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData();
         }
         return null;
     }
-- 
2.8.2