import java.awt.*;
import java.applet.*;
import junior.*;

class SinMove extends Atom
{
    protected SinCosIcobj icobj;
    protected boolean direction;
    public SinMove(SinCosIcobj i,boolean b){ icobj = i; direction = b; }
    protected void action(){ icobj.sine(direction); }
}

class CosMove extends Atom
{
    protected SinCosIcobj icobj;
    protected boolean direction;
    public CosMove(SinCosIcobj i,boolean b){ icobj = i; direction = b; }
    protected void action(){ icobj.cosine(direction); }
}

// The applet
public class SinCos extends IcobjWorkspace
{
    static int numColor = 0;
    static final Color[] color = {Color.green,Color.red,Color.blue,Color.yellow,
    							  Color.cyan, Color.orange, Color.pink, Color.magenta, Color.black};    
      
    ReactiveApplet reactive = new ReactiveApplet(this);

    Instruction sin(SinCosIcobj i){ 
       return new Seq(new Await("sin"),new Loop(new Seq(new SinMove(i,true),new Stop()))); 
    }
    Instruction cos(SinCosIcobj i){ 
       return new Seq(new Await("cos"),new Loop(new Seq(new CosMove(i,true),new Stop()))); 
    }

    void create(){ 
       SinCosIcobj icobj = new SinCosIcobj("");
       icobj.color = color[(numColor++)%color.length]; 
       addIcobj(icobj);
       reactive.add(sin(icobj));
       reactive.add(cos(icobj));
    } 

    public void init(){

       Button sin = new Button("sin");
       Button cos = new Button("cos");
       Button sincos = new Button("sin+cos");
       Button start = new Button("new circle");

       sin.addMouseListener(new Action(reactive,"sin"));
       cos.addMouseListener(new Action(reactive,"cos"));
       sincos.addMouseListener(new Action(reactive,"sincos"));
       start.addMouseListener(new Add(this));
       
       Panel p = new Panel();
       p.setBackground(Color.lightGray);
       setLayout(new BorderLayout());
       p.setLayout(new GridLayout(1, 5, 5, 20));
       add("South", p);	
      
       p.add(sin);
       p.add(cos);
       p.add(sincos);
       p.add(start);
               
       reactive.add(new Loop(
                      new Seq(
                         new Await("sincos"),
                         new Seq(
                            new Seq(new Generate("sin"),new Generate("cos")),
                            new Stop()))));
       create();
       mainThread = new Thread(reactive);
       mainThread.start();
    }
}