disabled hoppers in pixelblocks

src/main/java/eu/mhsl/minecraft/pixelblocks/listeners/InventoryListener.java

@@ -42,4 +42,12 @@ public class InventoryListener implements Listener {
             }
         }
     }
+
+    @EventHandler
+    static void onInventoryPickupItem(InventoryPickupItemEvent event) {
+        if(CommonEventHandlers.isInPixelWorld(event.getItem().getWorld())
+            && event.getInventory().getType() == InventoryType.HOPPER) {
+            event.setCancelled(true);
+        }
+    }
 }