From 7cd6c9e03ab94fa8b8bf44c9bdceef268dec51e1 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 22 Mar 2016 12:04:28 -0500
Subject: [PATCH] Configurable spawn chances for skeleton horses


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 9cce672..d92ccc7 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -269,4 +269,9 @@ public class PaperWorldConfig {
         }
         log("Non Player Arrow Despawn Rate: " + nonPlayerArrowDespawnRate);
     }
+
+    public double skeleHorseSpawnChance;
+    private void skeleHorseSpawnChance() {
+        skeleHorseSpawnChance = getDouble("skeleton-horse-thunder-spawn-chance", 0.01D); // -1.0D represents a "vanilla" state
+    }
 }
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 52b70e7..2c75c15 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -435,7 +435,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
                     if (this.isRainingAt(blockposition)) {
                         DifficultyDamageScaler difficultydamagescaler = this.D(blockposition);
 
-                        if (this.getGameRules().getBoolean("doMobSpawning") && this.random.nextDouble() < (double) difficultydamagescaler.b() * 0.01D) {
+                        if (this.getGameRules().getBoolean("doMobSpawning") && this.random.nextDouble() < (double) difficultydamagescaler.b() * paperConfig.skeleHorseSpawnChance) {
                             EntityHorseSkeleton entityhorseskeleton = new EntityHorseSkeleton(this);
 
                             entityhorseskeleton.p(true);
-- 
2.9.3