package net.sf.l2j.gameserver;

import java.io.FileReader;
import java.util.ArrayList;
import java.util.logging.Logger;

import net.sf.l2j.Config;
import net.sf.l2j.fscript.BasicIO;

public class AIScript
{
    private static Logger _log = Logger.getLogger(AIScript.class.getName());
    private static BasicIO fs;
    private static AIScript _instance;

    public AIScript()
    {
        fs = new BasicIO();
        
        try
        {
            _log.info("AIScript: loading script...");
            fs.load( new FileReader(Config.DATAPACK_ROOT+"/ai.obj"));
            _log.info("AIScript: executing...");
            fs.run();
        }
        catch(Exception e)
        {
            _log.warning("Error loading ai.obj: "+e);
            e.printStackTrace();
        }
    }
    
    public static AIScript getInstance()
    {
        if(_instance == null)
            _instance = new AIScript();
        return _instance;
    }
    
    public Object handleInterrupt(String handler,ArrayList params)
    { 
        Object result = null;
        
        if(params == null)
        {
            params = new ArrayList<Integer>();
            params.add(new Integer(0));
        }
        
        try
        {
            result = fs.callScriptFunction(handler,params);
        }
        catch(Exception e)
        {
            _log.warning("AIScript: ERROR WHILE HANDLING INTERRUPT! "+e);
        }

        return result;
    }
}

call from CharacterAI:
protected void onIntentionActive()
{
 AIScript.getInstance().handleInterrupt("onIdle",null);
.....
.....

script:
func onIdle(int Objectid)
  println("idle")
endfunc


then server shows:
AIScript: loading script...
AIScript: executing...
idle
idle