added /clear <Player> command and registered it in BauSystem.java

BauSystem_Main/src/de/steamwar/bausystem/BauSystem.java

@@ -55,10 +55,11 @@ public class BauSystem extends JavaPlugin implements Listener {
         }
 
         try {
-            CommandRemover.removeAll("tp", "gamemode", "time");
+            CommandRemover.removeAll("tp", "gamemode", "time", "clear");
             CommandInjector.injectCommand(new CommandTeleport());
             CommandInjector.injectCommand(new CommandGamemode());
             CommandInjector.injectCommand(new CommandTime());
+            CommandInjector.injectCommand(new CommandClear());
         } catch (Exception e) {
             getLogger().log(Level.SEVERE, "Failed to replace commands", e);
             Bukkit.shutdown();

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

@@ -0,0 +1,71 @@
+package de.steamwar.bausystem.commands;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.sql.SteamwarUser;
+import de.steamwar.sql.UserGroup;
+import org.apache.commons.lang.Validate;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.defaults.BukkitCommand;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.List;
+
+public class CommandClear extends BukkitCommand {
+    public CommandClear() {
+        super("clear");
+        description = "Leere dein Inventar oder das eines anderem Spielers.";
+        usageMessage = "/clear [Spieler]";
+    }
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!(sender instanceof Player))
+            return false;
+        Player player = (Player) sender;
+        if (args.length == 1){
+            player.getInventory().clear();
+            player.getInventory().setHelmet(new ItemStack(Material.AIR));
+            player.getInventory().setChestplate(new ItemStack(Material.AIR));
+            player.getInventory().setLeggings(new ItemStack(Material.AIR));
+            player.getInventory().setBoots(new ItemStack(Material.AIR));
+            player.sendMessage(BauSystem.PREFIX + "Dein Inventar wurde geleert.");
+            return true;
+        }
+        if (args.length == 2){
+            // check if admin
+            SteamwarUser steamwarUser = SteamwarUser.get(player.getUniqueId());
+            UserGroup userGroup = steamwarUser.getUserGroup();
+            if(userGroup != UserGroup.Admin &&
+                    userGroup != UserGroup.Developer &&
+                    userGroup != UserGroup.Moderator &&
+                    userGroup != UserGroup.Supporter)
+                return false;
+            // check if target is player
+            if(!(Bukkit.getPlayerExact(args[0]) instanceof Player)){
+                player.sendMessage(BauSystem.PREFIX + "Das ist kein Spieler.");
+                return false;
+            }
+            // clear
+            Player target = Bukkit.getPlayerExact(args[0]);
+            target.getInventory().clear();
+            target.getInventory().setHelmet(new ItemStack (Material.AIR));
+            target.getInventory().setChestplate(new ItemStack (Material.AIR));
+            target.getInventory().setLeggings(new ItemStack(Material.AIR));
+            target.getInventory().setBoots(new ItemStack (Material.AIR));
+            // Message
+            target.sendMessage(BauSystem.PREFIX + "Dein Inventar wurde von" + player.getDisplayName() +" geleert.");
+            player.sendMessage(BauSystem.PREFIX + "Das Inventar von" + target.getDisplayName() +" wurde geleert.");
+            return true;
+        }
+        player.sendMessage(BauSystem.PREFIX + "/clear [Spieler]");
+        return false;
+    }
+    public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
+        Validate.notNull(sender, "Sender cannot be null");
+        Validate.notNull(args, "Arguments cannot be null");
+        Validate.notNull(alias, "Alias cannot be null");
+
+        return super.tabComplete(sender, alias, args);
+    }
+}