BauSystem/src/de/steamwar/bausystem/commands/CommandFreeze.java

package de.steamwar.bausystem.commands;

import de.steamwar.bausystem.BauSystem;
import de.steamwar.bausystem.Permission;
import de.steamwar.bausystem.world.Welt;
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.HandlerList;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPhysicsEvent;

public class CommandFreeze implements CommandExecutor, Listener {

    private boolean frozen = false;

    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if(!(sender instanceof Player))
            return false;
        Player player = (Player) sender;

        if (!Welt.hasPermission(player, Permission.world)){
            player.sendMessage(BauSystem.PREFIX + "§cDu darfst diese Welt nicht einfrieren");
            return false;
        }

        if(frozen){
            HandlerList.unregisterAll(this);
            Bukkit.broadcastMessage(BauSystem.PREFIX + "§aDie Welt wurde aufgetaut");
        }else{
            Bukkit.getPluginManager().registerEvents(this, BauSystem.getPlugin());
            Bukkit.broadcastMessage(BauSystem.PREFIX + "§cDie Welt wurde eingefroren");
        }
        frozen = !frozen;
        return false;
    }

    @EventHandler
    public void onPhysicsEvent(BlockPhysicsEvent e){
        e.setCancelled(true);
    }
}