From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BrodyBeckwith <brody@beckwith.dev>
Date: Fri, 9 Oct 2020 20:30:12 -0400
Subject: [PATCH] Allow disabling mob spawner spawn egg transformation


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index f2e09eef7b0b9edd7db890aef608f1788a312e10..df8a43cd7a561bc5471d9b2f300c7ca4c06e2c9c 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -718,4 +718,9 @@ public class PaperWorldConfig {
     private void fixCuringExploit() {
         fixCuringZombieVillagerDiscountExploit = getBoolean("game-mechanics.fix-curing-zombie-villager-discount-exploit", fixCuringZombieVillagerDiscountExploit);
     }
+
+    public boolean disableMobSpawnerSpawnEggTransformation = false;
+    private void disableMobSpawnerSpawnEggTransformation() {
+        disableMobSpawnerSpawnEggTransformation = getBoolean("game-mechanics.disable-mob-spawner-spawn-egg-transformation", disableMobSpawnerSpawnEggTransformation);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/ItemMonsterEgg.java b/src/main/java/net/minecraft/server/ItemMonsterEgg.java
index 76c585299096ab3719bf23b32f1ce046202a9818..a236e0441fc20270b4c44ed5a7d5b94297949226 100644
--- a/src/main/java/net/minecraft/server/ItemMonsterEgg.java
+++ b/src/main/java/net/minecraft/server/ItemMonsterEgg.java
@@ -34,7 +34,7 @@ public class ItemMonsterEgg extends Item {
             EnumDirection enumdirection = itemactioncontext.getClickedFace();
             IBlockData iblockdata = world.getType(blockposition);
 
-            if (iblockdata.a(Blocks.SPAWNER)) {
+            if (!world.paperConfig.disableMobSpawnerSpawnEggTransformation && iblockdata.a(Blocks.SPAWNER)) { // Paper
                 TileEntity tileentity = world.getTileEntity(blockposition);
 
                 if (tileentity instanceof TileEntityMobSpawner) {