Fix Item giving

BauSystem_15/src/de/steamwar/bausystem/commands/CommandDebugStick_15.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.bausystem.commands;
 
+import de.steamwar.bausystem.PlayerUtils;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
@@ -27,6 +28,6 @@ class CommandDebugStick_15 {
     private CommandDebugStick_15(){}
 
     static void giveStick(Player player){
-        player.getInventory().setItemInMainHand(new ItemStack(Material.DEBUG_STICK));
+        PlayerUtils.giveItemToPlayer(player, new ItemStack(Material.DEBUG_STICK));
     }
 }

BauSystem_API/src/de/steamwar/bausystem/PlayerUtils.java

@@ -0,0 +1,36 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem;
+
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+public class PlayerUtils {
+
+    public static void giveItemToPlayer(Player player, ItemStack itemStack) {
+        ItemStack current = player.getInventory().getItemInMainHand();
+        player.getInventory().setItemInMainHand(itemStack);
+        if (current.getType() != Material.AIR) {
+            player.getInventory().addItem(current);
+        }
+    }
+
+}

BauSystem_Main/src/de/steamwar/bausystem/commands/CommandDetonator.java

@@ -21,6 +21,7 @@ package de.steamwar.bausystem.commands;
 
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
+import de.steamwar.bausystem.PlayerUtils;
 import de.steamwar.bausystem.world.Detonator;
 import de.steamwar.bausystem.world.Welt;
 import org.bukkit.command.Command;
@@ -62,7 +63,7 @@ public class CommandDetonator implements CommandExecutor {
             case "wand":
             case "detonator":
             case "item":
-                player.getInventory().setItemInMainHand(Detonator.WAND);
+                PlayerUtils.giveItemToPlayer(player, Detonator.WAND);
                 player.updateInventory();
                 Detonator.getDetonator(player);
                 break;

BauSystem_Main/src/de/steamwar/bausystem/commands/CommandGUI.java

@@ -2,6 +2,7 @@ package de.steamwar.bausystem.commands;
 
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
+import de.steamwar.bausystem.PlayerUtils;
 import de.steamwar.bausystem.tracer.record.RecordStateMachine;
 import de.steamwar.bausystem.tracer.show.TraceShowManager;
 import de.steamwar.bausystem.world.*;
@@ -574,13 +575,8 @@ public class CommandGUI implements CommandExecutor, Listener {
         if (strings.length == 0) {
             openBauGui(player);
             OPEN_INVS.add(player);
-        } else {
-            if ("item".equalsIgnoreCase(strings[0])) {
-                if (player.getInventory().getItemInMainHand().getType() == Material.AIR)
-                    player.getInventory().setItemInMainHand(new ItemStack(Material.NETHER_STAR));
-                else
-                    player.getInventory().addItem(new ItemStack(Material.NETHER_STAR));
-            }
+        } else if ("item".equalsIgnoreCase(strings[0])) {
+            PlayerUtils.giveItemToPlayer(player, new ItemStack(Material.NETHER_STAR));
         }
         return true;
     }

BauSystem_Main/src/de/steamwar/bausystem/commands/CommandScript.java

@@ -21,6 +21,7 @@
 
 package de.steamwar.bausystem.commands;
 
+import de.steamwar.bausystem.PlayerUtils;
 import org.bukkit.Material;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -67,7 +68,7 @@ public class CommandScript implements CommandExecutor {
         if (!(sender instanceof Player)) {
             return false;
         }
-        ((Player) sender).getInventory().setItemInMainHand(BOOK);
+        PlayerUtils.giveItemToPlayer((Player) sender, BOOK);
         return false;
     }
 

BauSystem_Main/src/de/steamwar/bausystem/commands/CommandSkull.java

@@ -20,6 +20,7 @@
 package de.steamwar.bausystem.commands;
 
 import de.steamwar.bausystem.BauSystem;
+import de.steamwar.bausystem.PlayerUtils;
 import de.steamwar.inventory.SWItem;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -46,7 +47,7 @@ public class CommandSkull implements CommandExecutor {
         assert sm != null;
         sm.setDisplayName("§e" + args[0] + "§8s Kopf");
         is.setItemMeta(sm);
-        p.getInventory().setItemInMainHand(is);
+        PlayerUtils.giveItemToPlayer(p, is);
 
         return false;
     }