minecraft-kajetans-mod/src/main/java/me/km/commands/CommandGameMode.java

package me.km.commands;

import me.km.KajetansMod;
import me.km.api.Utils;
import me.km.api.GlobalText;
import me.km.api.Module;
import me.km.api.ModuleCommand;
import me.km.exception.PlayerNotFoundException;
import me.km.permissions.Permissions;
import net.minecraft.command.ICommandSender;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.world.GameType;

public class CommandGameMode extends ModuleCommand
{
    public CommandGameMode(Module m) 
    {
        super("gamemode", m);
        super.setDescription("Ändert den GameMode eines Spielers");
        super.setUsage("/gamemode <mode> [player]");
        super.setPermission(Permissions.GAMEMODE);
        super.addAlias("gm");
    }

    @Override
    public boolean execute(ICommandSender cs, String[] arg) 
    {
        if(arg.length == 0)
        {
            return false;
        }
        
        EntityPlayer affectedPlayer;
        try
        {
            if(arg.length >= 2 && !KajetansMod.perms.hasPermission(cs, Permissions.GAMEMODE_OTHER))
            {
                this.getModule().send(cs, "Du darfst nur deinen eigenen GameMode setzen.");
                return true;
            }
            affectedPlayer = Utils.getPlayerByName(arg[1]);      
        }
        catch(PlayerNotFoundException ex)
        {
            this.getModule().send(cs, GlobalText.cantFindPlayer(arg[1]));
            return true;
        }
        catch(IndexOutOfBoundsException ex)
        {
            if(!(cs instanceof EntityPlayer))
            {
                this.getModule().send(cs, GlobalText.missingParameter());
                return true;
            }     
            affectedPlayer = (EntityPlayer) cs;
        }

        String mode;
        switch (arg[0].toLowerCase()) 
        {
            case "survival":
            case "s":
            case "0":  
                affectedPlayer.setGameType(GameType.SURVIVAL);
                mode = "Survival";
                break;
            case "creative":
            case "c":        
            case "1":  
                affectedPlayer.setGameType(GameType.CREATIVE);
                mode = "Creative";
                break;
            case "adventure":         
            case "a":         
            case "2":  
                affectedPlayer.setGameType(GameType.ADVENTURE);
                mode = "Adventure";
                break;
            case "specator":         
            case "w":         
            case "3":  
                affectedPlayer.setGameType(GameType.SPECTATOR);
                mode = "Spectator";
                break;  
            default:
                affectedPlayer.setGameType(GameType.CREATIVE);
                mode = "Creative";
                break;
        }

        this.getModule().send(affectedPlayer, "Du hast nun Gamemode " + mode + ".");
        if(!cs.equals(affectedPlayer))
        {
            this.getModule().send(cs, affectedPlayer.getName() + " hat nun Gamemode " + mode + ".");
        }
        return true;
    }
}