import java.awt.*;
import java.applet.Applet;
import java.util.*;
import ca.*;

public class RandomCAs extends Applet
{
	CAs animator;
	String cas[];
	Thread th;
	int max;
	boolean wrap = true;
/**
*情報
*/
	public String getAppletInfo() {
		return "RandomCAs v0.2 (09 Oct 1996),by task gouda";
	}
	
/**
*パラメーターの説明
*/
  public String[][] getParameterInfo()  {
    String pinfo[][] = { 
      {"max",       "int",   "the number of CAs"}, 
      {"CAs",      "String",   "CA list exanple(\"ca.Life,ca.Brain,ca.Vote,ca.Rug,ca.Faders\")"},
      {"Wrap",      "boolean",   "true/false World Edge mode"},
    }; 
    return pinfo;
  }

	public void init() {
		Dimension r = size();
		resize( r.width , r.height );
		Graphics g = getGraphics();
		g.setColor(Color.black);
		g.fillRect(0,0,r.width,r.height);
		max = getParamNum("max");
		String txt = getParameter("Wrap");
		if ( txt != null ){
			wrap = (Boolean.valueOf(txt)).booleanValue();
		}
		String name = getParameter("CAs");
		if ( name != null ){
			cas = new String[max];
			StringTokenizer st = new StringTokenizer(name,",",false);
			for(int i = 0 ; i < max;i++){
				try{
				cas[i] = st.nextToken();
				}catch( NoSuchElementException e ){
					max = i+1;
					break;
				}
			}
		}else{
			max = 0;
		}
	}
	
	//get parameterNumber.
	public int getParamNum(String st)
	{
		int num=0;
		String title=getParameter(st);
		if(st!=null)
			num=Integer.valueOf(title).intValue();
		//else System.out.println(st+" is null");
		return num;
	}
	
	public void start(){
		if ( th == null ){
			
			try{
				int x = (int)(Math.random()*max);
				if (x<0){
					x=0;
				}else if (x>=max){
					x=max-1;
				}
				animator = (CAs)((Class.forName(cas[x])).newInstance());
				animator.setTarget(this);
				animator.setWrap(wrap);
				th = new Thread(animator);
				th.start();
			} catch (ClassNotFoundException e ){
				System.out.println("--  Class Not Found!  --");
			}catch (Exception e){
				System.out.println("--  Error:  --  " + e);
			}
			
			//animator = new Life(this);
			//animator.start();
		}
	}
	public void stop(){
		if ( (th != null) && th.isAlive() ){
			th.stop();
		}
		th = null;
		System.runFinalization();
		System.gc();
	}
	public void destroy(){
		this.stop();
	}
	public void update(Graphics g){
		paint(g);
	}
	
	public void paint( Graphics g ) {
		//g.drawImage(bufimg,0,0,this);
	}

	public boolean mouseUp (Event e ,int x , int y){
		this.stop();
		this.start();
		return true;
	}
	public static void main(String args[])
	{
		//com.metrowerks.AppletFrame.startApplet("LifeTest", "Life Test", args);
	}

}