Fix IngameListener.onPlayerInteract

src/de/steamwar/towerrun/listener/IngameListener.java

@@ -33,7 +33,6 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.block.BlockBreakEvent;
 import org.bukkit.event.block.BlockPhysicsEvent;
-import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.entity.EntityRegainHealthEvent;
 import org.bukkit.event.entity.ItemSpawnEvent;
@@ -136,16 +135,14 @@ public class IngameListener extends GameStateBukkitListener {
     }
 
     @EventHandler
-    public void onBlockPlace(BlockPlaceEvent event) {
-        if (event.getBlockPlaced().getType() == Material.LEVER) {
-            event.setCancelled(true);
-            if (event.getBlockAgainst().getType() == Material.IRON_DOOR) {
-                event.setCancelled(false);
-                event.getBlockPlaced().breakNaturally();
-                event.getBlockAgainst().breakNaturally();
-                event.getItemInHand().setType(Material.AIR);
-            }
-        }
+    public void onPlayerInteract(PlayerInteractEvent event) {
+        if (!event.hasItem()) return;
+        if (event.getItem().getType() != Material.LEVER) return;
+        event.setCancelled(true);
+        if (!event.hasBlock()) return;
+        if (event.getClickedBlock().getType() != Material.IRON_DOOR) return;
+        event.getPlayer().getInventory().setItemInMainHand(null);
+        event.getClickedBlock().breakNaturally();
     }
 
     @EventHandler