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

package me.km.commands;

import me.km.api.Utils;
import me.km.api.GlobalText;
import me.km.api.Module;
import me.km.api.ModuleCommand;
import me.km.chatmanager.ChatManager;
import me.km.permissions.Permissions;
import me.km.utils.SpecialBlockUtils;
import net.minecraft.block.Block;
import net.minecraft.command.ICommandSender;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.tileentity.TileEntitySign;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

public class CommandSign extends ModuleCommand
{
    public CommandSign(Module m) 
    {
        super("sign", m);
        super.setDescription("Editiert ein Schild");
        super.setUsage("/sign <1-4> [text]");
        super.setPermission(Permissions.SIGN);
    }

    @Override
    public boolean execute(ICommandSender cs, String[] arg) 
    {
        if(!(cs instanceof EntityPlayer))
        {
            this.getModule().send(cs, GlobalText.onlyPlayer());
            return true;
        }
        if(arg.length < 1)
        {
            return false;
        }
        EntityPlayer p = (EntityPlayer) cs;
        World w = p.getEntityWorld();
        BlockPos pos = Utils.getPlayerTarget(p, 20, true);
        Block b = w.getBlockState(pos).getBlock();
        if(b == Blocks.STANDING_SIGN || b == Blocks.WALL_SIGN)
        {
            TileEntitySign sign = (TileEntitySign) w.getTileEntity(pos);
            if(sign == null)
            {
                this.getModule().send(cs, GlobalText.shouldNotHappen());
                return true;
            }
            
            int line;
            try
            {        
                line = Integer.parseInt(arg[0]) - 1;
                if(line > 3 || line < 0)
                {
                    throw new java.lang.NumberFormatException();
                }
            }
            catch(java.lang.NumberFormatException ex)
            {
                this.getModule().send(cs, "Du musst eine Zahl von 1 bis 4 eingeben.");
                return true;
            }

            String newText = Utils.connectSpaces(arg, 1); 
            newText = ChatManager.colorMessage(newText, p);    
            SpecialBlockUtils.setSignLine(sign, line, newText);
            return true;
        } 
        this.getModule().send(cs, "Du bist nicht auf ein Schild gerichtet.");          
        return true;
    }
}