From 7d32d314aa0f91af7df576632021e195bd59ee3e Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Sun, 7 Jul 2019 19:52:16 -0500
Subject: [PATCH] Zombie horse naturally spawn


diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index b8e788eb66575051073ec2230e8b71dbd59d5b71..9469d6052ad920f9fd9848e7ee55e488372e5e62 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1049,12 +1049,18 @@ public class WorldServer extends World implements GeneratorAccessSeed {
                 boolean flag1 = this.getGameRules().getBoolean(GameRules.DO_MOB_SPAWNING) && this.random.nextDouble() < (double) difficultydamagescaler.b() * paperConfig.skeleHorseSpawnChance; // Paper
 
                 if (flag1) {
-                    EntityHorseSkeleton entityhorseskeleton = (EntityHorseSkeleton) EntityTypes.SKELETON_HORSE.a((World) this);
-
-                    entityhorseskeleton.t(true);
-                    entityhorseskeleton.setAgeRaw(0);
-                    entityhorseskeleton.setPosition((double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ());
-                    this.addEntity(entityhorseskeleton, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.LIGHTNING); // CraftBukkit
+                    // Purpur start
+                    EntityHorseAbstract horse;
+                    if (purpurConfig.zombieHorseSpawnChance > 0D && random.nextDouble() <= purpurConfig.zombieHorseSpawnChance) {
+                        horse = EntityTypes.ZOMBIE_HORSE.create(this);
+                    } else {
+                        horse = EntityTypes.SKELETON_HORSE.create(this);
+                        ((EntityHorseSkeleton) horse).setTrap(true);
+                    }
+                    horse.setAgeRaw(0);
+                    horse.setPosition(blockposition.getX(), blockposition.getY(), blockposition.getZ());
+                    addEntity(horse, CreatureSpawnEvent.SpawnReason.LIGHTNING); // CraftBukkit
+                    // Purpur end
                 }
 
                 EntityLightning entitylightning = (EntityLightning) EntityTypes.LIGHTNING_BOLT.a((World) this);
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 5c716a6b4f9ff33912ebb274b36eef70679ea87b..04dfb820053925c2835bdcec702d5a467a9fe48e 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -155,4 +155,9 @@ public class PurpurWorldConfig {
         villagerBrainTicks = getInt("mobs.villager.brain-ticks", villagerBrainTicks);
         villagerUseBrainTicksOnlyWhenLagging = getBoolean("mobs.villager.use-brain-ticks-only-when-lagging", villagerUseBrainTicksOnlyWhenLagging);
     }
+
+    public double zombieHorseSpawnChance = 0.0D;
+    private void zombieHorseSettings() {
+        zombieHorseSpawnChance = getDouble("mobs.zombie_horse.spawn-chance", zombieHorseSpawnChance);
+    }
 }