Expand CreatureSpawner API

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) {

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;
+    }
 }