testserver/patches/server/0139-provide-a-configurable-option-to-disable-creeper-lin.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 11 Jun 2017 21:01:18 +0100
Subject: [PATCH] provide a configurable option to disable creeper lingering
 effect spawns


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 9dad1efab44b8a23f274aa89c85944d98e9a6c51..99d09ff7e9eea776f8c78eda3e89a9613a722172 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -382,4 +382,10 @@ public class PaperWorldConfig {
         parrotsHangOnBetter = getBoolean("parrots-are-unaffected-by-player-movement", false);
         log("Parrots are unaffected by player movement: " + parrotsHangOnBetter);
     }
+
+    public boolean disableCreeperLingeringEffect;
+    private void setDisableCreeperLingeringEffect() {
+        disableCreeperLingeringEffect = getBoolean("disable-creeper-lingering-effect", false);
+        log("Creeper lingering effect: " + disableCreeperLingeringEffect);
+    }
 }
diff --git a/src/main/java/net/minecraft/world/entity/monster/Creeper.java b/src/main/java/net/minecraft/world/entity/monster/Creeper.java
index 7a5eea3a2eaff5e08589fc240307da2beb44c307..e74bd467f6b2fe26d7798abbe089a6311c42be64 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Creeper.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Creeper.java
@@ -281,7 +281,7 @@ public class Creeper extends Monster implements PowerableMob {
     private void spawnLingeringCloud() {
         Collection<MobEffectInstance> collection = this.getActiveEffects();
 
-        if (!collection.isEmpty()) {
+        if (!collection.isEmpty() && !level.paperConfig.disableCreeperLingeringEffect) { // Paper
             AreaEffectCloud entityareaeffectcloud = new AreaEffectCloud(this.level, this.getX(), this.getY(), this.getZ());
 
             entityareaeffectcloud.setOwner(this); // CraftBukkit