Is there any way to make it only run with the prefix?

 

main

package rf.mat.prefixchat;

import net.minecraft.client.Minecraft;
import net.minecraft.command.ICommand;
import net.minecraft.init.Blocks;
import net.minecraftforge.client.ClientCommandHandler;
import net.minecraftforge.client.event.ClientChatEvent;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = PrefixChat.MODID, name = PrefixChat.NAME, version = PrefixChat.VERSION)
public class PrefixChat
{
    public static final String MODID = "prefixchat";
    public static final String NAME = "Chat prefix";
    public static final String VERSION = "0.1";

    private boolean hasPrefix;
    
    public PrefixChat() {
    	this.hasPrefix = false;
    }

    @EventHandler
    public void preInit(FMLInitializationEvent event)
    {
       FMLCommonHandler.instance().bus().register(this);
       MinecraftForge.EVENT_BUS.register(this);
       
       ClientCommandHandler.instance.registerCommand(new testCMD());
    }

	
}

 

command class

package rf.mat.prefixchat;

import net.minecraft.command.*;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.text.ITextComponent;
import net.minecraft.util.text.TextComponentString;
import net.minecraftforge.client.IClientCommand;

public class testCMD extends CommandBase {
	
	private void showMessage(final String message, final ICommandSender sender) {
		sender.sendMessage((ITextComponent)new TextComponentString(message));
    }

	@Override
	public String getName() {
		return "test";
	}

	@Override
	public String getUsage(ICommandSender sender) {
		return "test testing!";
	}

	@Override
	public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
		// TODO
		showMessage("testing.",sender);
	}

	@Override
	public boolean checkPermission(MinecraftServer server, ICommandSender sender) {
		return true;
	}

	
}

 

Thanks! I tried that before but i was getting a error, probably because i didn't have the extends CommandBase part.