From 319013857d3eb9a64171d64e453f36dd0641447f Mon Sep 17 00:00:00 2001
From: Senmori <thesenmori@gmail.com>
Date: Thu, 23 Mar 2017 12:42:01 -0400
Subject: [PATCH] Add Chunk.isSlimeChunk to check if a chunk can spawn slimes

---
 src/main/java/org/bukkit/craftbukkit/CraftChunk.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
index e3d9bdc377..0cc838ccfb 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
@@ -3,6 +3,7 @@ package org.bukkit.craftbukkit;
 import java.lang.ref.WeakReference;
 import java.util.Arrays;
 
+import java.util.Random;
 import net.minecraft.server.*;
 
 import org.bukkit.Chunk;
@@ -129,6 +130,12 @@ public class CraftChunk implements Chunk {
         return getWorld().unloadChunk(getX(), getZ());
     }
 
+    @Override
+    public boolean isSlimeChunk() {
+        // 987234911L is deterimined in EntitySlime when seeing if a slime can spawn in a chunk
+        return getHandle().a(987234911L).nextInt(10) == 0;
+    }
+
     public boolean unload(boolean save) {
         return getWorld().unloadChunk(getX(), getZ(), save);
     }