From 668b61b734fdf176cf55515a0f9755a987eaaeaa Mon Sep 17 00:00:00 2001
From: MagicBot <MagicBot@magicbane.com>
Date: Sun, 25 Aug 2024 17:11:01 -0400
Subject: [PATCH] city.isDestroyed

---
 src/engine/objects/City.java | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/engine/objects/City.java b/src/engine/objects/City.java
index a4591532..52f09882 100644
--- a/src/engine/objects/City.java
+++ b/src/engine/objects/City.java
@@ -41,6 +41,7 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 public class City extends AbstractWorldObject {
@@ -80,6 +81,7 @@ public class City extends AbstractWorldObject {
     private String hash;
     public Warehouse warehouse;
     public Realm realm;
+    public AtomicBoolean isDestroyed = new AtomicBoolean(false);
 
     /**
      * ResultSet Constructor
@@ -1102,10 +1104,14 @@ public class City extends AbstractWorldObject {
 
     public final void destroy() {
 
-        Thread destroyCityThread = new Thread(new DestroyCityThread(this));
+        if (this.isDestroyed.compareAndSet(false, true)) {
 
-        destroyCityThread.setName("destroyCity:" + this.getParent().zoneName);
-        destroyCityThread.start();
+            Thread destroyCityThread = new Thread(new DestroyCityThread(this));
+
+            destroyCityThread.setName("destroyCity:" + this.getParent().zoneName);
+            destroyCityThread.start();
+        } else
+            Logger.error("Attempt to destroy destroyed city");
     }
 
     public final void transfer(AbstractCharacter newOwner) {