Revert "Remove ModifyCommand"

This reverts commit d93d7c95eb.

LobbySystem/src/de/steamwar/lobby/command/ModifyCommand.java

@@ -0,0 +1,88 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2021  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.lobby.command;
+
+import de.steamwar.command.SWCommand;
+import de.steamwar.lobby.LobbySystem;
+import de.steamwar.lobby.listener.PlayerSpawn;
+import de.steamwar.sql.SteamwarUser;
+import de.steamwar.sql.UserPerm;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.entity.HumanEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class ModifyCommand extends SWCommand implements Listener {
+
+    private static final Set<HumanEntity> modifying = new HashSet<>();
+
+    public static boolean modifying(HumanEntity player) {
+        return modifying.contains(player);
+    }
+
+    public ModifyCommand() {
+        super("modify");
+        Bukkit.getPluginManager().registerEvents(this, LobbySystem.getPlugin());
+    }
+
+    @Register
+    public void modify(Player player) {
+        SteamwarUser user = SteamwarUser.get(player.getUniqueId());
+        if(!user.hasPerm(UserPerm.ADMINISTRATION)) {
+            return;
+        }
+
+        if(modifying(player)) {
+            modifying.remove(player);
+            LobbySystem.getEntityServer(true).removePlayer(player);
+            player.setGameMode(GameMode.ADVENTURE);
+            player.setOp(false);
+            PlayerSpawn.giveItems(player);
+        }else {
+            modifying.add(player);
+            LobbySystem.getEntityServer(true).addPlayer(player);
+            player.setGameMode(GameMode.CREATIVE);
+            player.setOp(true);
+        }
+    }
+
+    @EventHandler
+    public void onLeave(PlayerQuitEvent event) {
+        Player player = event.getPlayer();
+
+        modifying.remove(player);
+        player.setOp(false);
+    }
+
+    @Register("waitinghallspawn")
+    public void setWaitingHallSpawn(Player player) {
+        SteamwarUser user = SteamwarUser.get(player.getUniqueId());
+        if(!user.hasPerm(UserPerm.ADMINISTRATION))
+            return;
+        
+        LobbySystem.config().setWaitingHallSpawn(player.getLocation());
+    }
+}