From 3b71262f21b298b718457999f78cc4db28a694c2 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 20 Aug 2014 18:12:32 -0400
Subject: [PATCH] Limit TNT Detonations per tick

This gives a per-world control on how much TNT will be processed per-tick,
preventing a massive TNT detonation from lagging out the server.

diff --git a/src/main/java/net/minecraft/server/EntityTNTPrimed.java b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
index ff6783cad..b448467a9 100644
--- a/src/main/java/net/minecraft/server/EntityTNTPrimed.java
+++ b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
@@ -48,6 +48,7 @@ public class EntityTNTPrimed extends Entity {
 
     @Override
     public void tick() {
+        if (world.spigotConfig.currentPrimedTnt++ > world.spigotConfig.maxTntTicksPerTick) { return; } // Spigot
         if (!this.isNoGravity()) {
             this.setMot(this.getMot().add(0.0D, -0.04D, 0.0D));
         }
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index da0c3ed28..b87b7de2e 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -695,6 +695,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
 
         timings.tileEntityPending.stopTiming(); // Spigot
         gameprofilerfiller.exit();
+        spigotConfig.currentPrimedTnt = 0; // Spigot
     }
 
     public void a(Consumer<Entity> consumer, Entity entity) {
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index 848a06605..0043a13a0 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -333,4 +333,15 @@ public class SpigotWorldConfig
         sprintMultiplier = (float) getDouble( "hunger.sprint-multiplier", 0.1 );
         otherMultiplier = (float) getDouble( "hunger.other-multiplier", 0.0 );
     }
+
+    public int currentPrimedTnt = 0;
+    public int maxTntTicksPerTick;
+    private void maxTntPerTick() {
+        if ( SpigotConfig.version < 7 )
+        {
+            set( "max-tnt-per-tick", 100 );
+        }
+        maxTntTicksPerTick = getInt( "max-tnt-per-tick", 100 );
+        log( "Max TNT Explosions: " + maxTntTicksPerTick );
+    }
 }
-- 
2.25.1