diff --git a/BauSystem_15/src/de/steamwar/bausystem/world/AutoLoader_15.java b/BauSystem_15/src/de/steamwar/bausystem/world/AutoLoader_15.java
index 89fc7fa..8353ce9 100644
--- a/BauSystem_15/src/de/steamwar/bausystem/world/AutoLoader_15.java
+++ b/BauSystem_15/src/de/steamwar/bausystem/world/AutoLoader_15.java
@@ -24,6 +24,7 @@ import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.Openable;
 import org.bukkit.block.data.Powerable;
 import org.bukkit.block.data.type.Switch;
 import org.bukkit.event.player.PlayerInteractEvent;
@@ -52,6 +53,12 @@ class AutoLoader_15 {
         powerable.setPowered(active);
         block.setBlockData(powerable);
 
+        if(data instanceof Openable) {
+            Openable openable = (Openable) data;
+            openable.setOpen(active);
+            block.setBlockData(openable);
+        }
+
         if (data instanceof Switch){
             Switch swtch = (Switch) data;
             Block relative;
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/Detonator.java b/BauSystem_Main/src/de/steamwar/bausystem/world/Detonator.java
index bdb62b6..0a27f53 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/Detonator.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/Detonator.java
@@ -20,13 +20,15 @@
 package de.steamwar.bausystem.world;
 
 import de.steamwar.bausystem.BauSystem;
-import de.steamwar.core.Core;
+import de.steamwar.core.VersionedCallable;
+import de.steamwar.core.VersionedRunnable;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.chat.TextComponent;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
@@ -39,7 +41,7 @@ import java.util.stream.Collectors;
 public class Detonator implements Listener {
 
     public static final ItemStack WAND;
-    private static final Map<Player, Detonator> players = new HashMap<>();
+    private static final Map<Player, Detonator> PLAYERS = new HashMap<>();
 
     private final Set<Detoloader.DetonatorActivation> locs = new HashSet<>();
     private final Player player;
@@ -59,49 +61,49 @@ public class Detonator implements Listener {
     }
 
     public static Detonator getDetonator(Player player){
-        if(!players.containsKey(player))
+        if(!PLAYERS.containsKey(player))
             return new Detonator(player);
-        return players.get(player);
+        return PLAYERS.get(player);
     }
 
     public Detonator(Player player) {
         this.player = player;
         Bukkit.getPluginManager().registerEvents(this, BauSystem.getPlugin());
-        players.put(player, this);
+        PLAYERS.put(player, this);
     }
 
     public static void deleteDetonator(Player player) {
-        if(players.containsKey(player))
-            players.remove(player);
+        HandlerList.unregisterAll(PLAYERS.remove(player));
     }
 
     public void execute() {
         for (Detoloader.DetonatorActivation activation: getLocations()) {
 
-            Boolean powered;
-            if(activation.activation == -1) switch (Core.getVersion()) {
-                case 15:
+            if(activation.activation == -1) {
+                VersionedRunnable.call(new VersionedRunnable(() -> {
+                    boolean powered = AutoLoader_12.getLever(activation.location.getBlock());
+                    AutoLoader_12.setRedstone(activation.location, !powered);
+
+                }, 12), new VersionedRunnable(() -> {
+                    boolean powered;
                     try {
                         powered = AutoLoader_15.getLever(activation.location.getBlock());
-                    }catch (ClassCastException e) {
+                    } catch (ClassCastException e) {
                         locs.remove(activation);
                         return;
                     }
                     AutoLoader_15.setRedstone(activation.location, !powered);
-                    break;
-                default:
-                    powered = AutoLoader_12.getLever(activation.location.getBlock());
-                    AutoLoader_12.setRedstone(activation.location, !powered);
-            }else switch (Core.getVersion()) {
-                case 15:
-                    AutoLoader_15.setRedstone(activation.location, true);
-                    Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), () ->
-                            AutoLoader_15.setRedstone(activation.location, false), activation.activation);
-                    break;
-                default:
+                }, 15));
+            } else {
+                VersionedRunnable.call(new VersionedRunnable(() -> {
                     AutoLoader_12.setRedstone(activation.location, true);
                     Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), () ->
                             AutoLoader_12.setRedstone(activation.location, false), activation.activation);
+                }, 12), new VersionedRunnable(() -> {
+                    AutoLoader_15.setRedstone(activation.location, true);
+                    Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), () ->
+                            AutoLoader_15.setRedstone(activation.location, false), activation.activation);
+                }, 15));
             }
         }
         player.spigot().sendMessage(ChatMessageType.ACTION_BAR, TextComponent.fromLegacyText("§a" + locs.size() + " Punkt" + (locs.size() > 1 ? "e" : "") + " ausgelöst!"));
@@ -116,16 +118,19 @@ public class Detonator implements Listener {
             event.setCancelled(true);
             switch (event.getAction()) {
                 case LEFT_CLICK_BLOCK:
-                    Detoloader detoloader;
-                    switch(Core.getVersion()){
-                        case 15:
-                            detoloader = AutoLoader_15.onPlayerInteractLoader(event);
-                            break;
-                        default:
-                            detoloader = AutoLoader_12.onPlayerInteractLoader(event);
+                    Detoloader detoloader = VersionedCallable.call(
+                            new VersionedCallable<>(() ->
+                                    AutoLoader_12.onPlayerInteractLoader(event), 12),
+                            new VersionedCallable<>(() ->
+                                    AutoLoader_15.onPlayerInteractLoader(event), 15));
 
+                    if(detoloader == null) {
+                        return;
+                    } else if (detoloader.activation == -1)  {
+                        print(detoloader.getBlock(), detoloader.addBack);
+                        return;
                     }
-                    if(detoloader == null || detoloader.activation == -1) return;
+
 
                     if(event.getPlayer().isSneaking()) {
                         if(locs.stream().filter(detonatorActivation -> detonatorActivation.location.equals(event.getClickedBlock().getLocation())).collect(Collectors.toList()).size() == 1) {
@@ -151,7 +156,7 @@ public class Detonator implements Listener {
                         print(detoloader.addBack ? "§e" + detoloader.getBlock() + " getsetzt" :
                                 detoloader.getBlock(), detoloader.addBack);
                     }
-                break;
+                    break;
                 case RIGHT_CLICK_AIR:
                 case RIGHT_CLICK_BLOCK:
                     execute();