From c7656468e4601fb70e0d7049c4b947e16034546f Mon Sep 17 00:00:00 2001
From: Senmori <thesenmori@gmail.com>
Date: Wed, 24 Jan 2018 17:18:25 +1100
Subject: [PATCH] Expand CreatureSpawner API

---
 nms-patches/MobSpawnerAbstract.patch          | 20 ++++++
 .../block/CraftCreatureSpawner.java           | 64 +++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/nms-patches/MobSpawnerAbstract.patch b/nms-patches/MobSpawnerAbstract.patch
index 0d3b89df1..9f63bb2a9 100644
--- a/nms-patches/MobSpawnerAbstract.patch
+++ b/nms-patches/MobSpawnerAbstract.patch
@@ -1,5 +1,25 @@
 --- a/net/minecraft/server/MobSpawnerAbstract.java
 +++ b/net/minecraft/server/MobSpawnerAbstract.java
+@@ -12,13 +12,13 @@
+     private MobSpawnerData spawnData = new MobSpawnerData();
+     private double d;
+     private double e;
+-    private int minSpawnDelay = 200;
+-    private int maxSpawnDelay = 800;
+-    private int spawnCount = 4;
++    public int minSpawnDelay = 200; // CraftBukkit private -> public
++    public int maxSpawnDelay = 800; // CraftBukkit private -> public
++    public int spawnCount = 4; // CraftBukkit private -> public
+     private Entity i;
+-    private int maxNearbyEntities = 6;
+-    private int requiredPlayerRange = 16;
+-    private int spawnRange = 4;
++    public int maxNearbyEntities = 6; // CraftBukkit private -> public
++    public int requiredPlayerRange = 16; // CraftBukkit private -> public
++    public int spawnRange = 4; // CraftBukkit private -> public
+ 
+     public MobSpawnerAbstract() {}
+ 
 @@ -32,6 +32,7 @@
      public void setMobName(@Nullable MinecraftKey minecraftkey) {
          if (minecraftkey != null) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java b/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
index 67f4c7303..2ec708434 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.block;
 
+import com.google.common.base.Preconditions;
 import net.minecraft.server.MinecraftKey;
 import net.minecraft.server.TileEntityMobSpawner;
 import org.bukkit.Material;
@@ -57,4 +58,67 @@ public class CraftCreatureSpawner extends CraftBlockEntityState<TileEntityMobSpa
     public void setDelay(int delay) {
         this.getSnapshot().getSpawner().spawnDelay = delay;
     }
+
+    @Override
+    public int getMinSpawnDelay() {
+        return this.getSnapshot().getSpawner().minSpawnDelay;
+    }
+
+    @Override
+    public void setMinSpawnDelay(int spawnDelay) {
+        Preconditions.checkArgument(spawnDelay <= getMaxSpawnDelay(), "Minimum Spawn Delay must be less than or equal to Maximum Spawn Delay");
+        this.getSnapshot().getSpawner().minSpawnDelay = spawnDelay;
+    }
+
+    @Override
+    public int getMaxSpawnDelay() {
+        return this.getSnapshot().getSpawner().maxSpawnDelay;
+    }
+
+    @Override
+    public void setMaxSpawnDelay(int spawnDelay) {
+        Preconditions.checkArgument(spawnDelay > 0, "Maximum Spawn Delay must be greater than 0.");
+        Preconditions.checkArgument(spawnDelay >= getMinSpawnDelay(), "Maximum Spawn Delay must be greater than or equal to Minimum Spawn Delay");
+        this.getSnapshot().getSpawner().maxSpawnDelay = spawnDelay;
+    }
+
+    @Override
+    public int getMaxNearbyEntities() {
+        return this.getSnapshot().getSpawner().maxNearbyEntities;
+    }
+
+    @Override
+    public void setMaxNearbyEntities(int maxNearbyEntities) {
+        this.getSnapshot().getSpawner().maxNearbyEntities = maxNearbyEntities;
+    }
+
+    @Override
+    public int getSpawnCount() {
+        return this.getSnapshot().getSpawner().spawnCount;
+    }
+
+    @Override
+    public void setSpawnCount(int count) {
+        this.getSnapshot().getSpawner().spawnCount = count;
+    }
+
+    @Override
+    public int getRequiredPlayerRange() {
+        return this.getSnapshot().getSpawner().requiredPlayerRange;
+    }
+
+    @Override
+    public void setRequiredPlayerRange(int requiredPlayerRange) {
+        this.getSnapshot().getSpawner().requiredPlayerRange = requiredPlayerRange;
+    }
+
+    @Override
+    public int getSpawnRange() {
+        return this.getSnapshot().getSpawner().spawnRange;
+    }
+
+    @Override
+    public void setSpawnRange(int spawnRange) {
+        this.getSnapshot().getSpawner().spawnRange = spawnRange;
+    }
 }