Prevent ProcessingSpam

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/inventory/SWInventory.java

@@ -29,6 +29,7 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 public class SWInventory {
 
@@ -39,6 +40,8 @@ public class SWInventory {
     private String title;
     private boolean next;
 
+    private final AtomicBoolean processingClick = new AtomicBoolean();
+
     public SWInventory(ProxiedPlayer proxiedPlayer, int size, String title) {
         itemMap = new HashMap<>();
         InventoryCallbackHandler.inventoryHashMap.put(SteamwarUser.get(proxiedPlayer).getId(), this);
@@ -101,13 +104,19 @@ public class SWInventory {
     }
 
     public void handleCallback(InvCallback.ClickType type, int pos) {
+        if(processingClick.compareAndSet(false, true)) {
             itemMap.get(pos).getCallback().clicked(type);
+            processingClick.set(false);
+        }
     }
 
     public void handleClose() {
+        if(processingClick.compareAndSet(false, true)) {
             InventoryCallbackHandler.inventoryHashMap.remove(SteamwarUser.get(player).getId(), this);
             if(close != null)
                 close.clicked(null);
+            processingClick.set(false);
+        }
     }
 
     public void open() {