minecraft-kajetans-mod/src/main/java/me/km/ClientEvents.java

package me.km;

import me.km.api.GlobalText;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextComponentTranslation;
import net.minecraftforge.client.event.ClientChatReceivedEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ClientEvents 
{
    @SideOnly(Side.CLIENT)
    @SubscribeEvent
    public void preventChatMessage(ClientChatReceivedEvent e) 
    {
        if(e.getMessage() instanceof TextComponentTranslation)
        {
            TextComponentTranslation trans = (TextComponentTranslation) e.getMessage();
            switch(trans.getKey())
            {
                case "commands.generic.permission":
                {
                    e.setMessage(new TextComponentString("[§5Perms§r] " + GlobalText.noPermission()));
                }
            }   
        }
    }
}