/*
 * Controller.java
 *
 * Created on July 9, 2004, 11:39 AM
 */

/**
 *
 * @author  levenick
 */
import java.awt.*;
import java.applet.*;
import java.util.*;

public class Controller extends Thread {
    private final int NUM_MOLECULES=100;
    
    private Frame theFrame;
    private Vector theList = new Vector();
    private boolean running=true;
    public boolean getRunning() {return running;}
    
    /** Creates a new instance of Controller */
    public Controller(Frame theFrame) {
        this.theFrame = theFrame;
        for (int i=0; i<NUM_MOLECULES; i++)
            theList.add(new Molecule(rand(900),rand(900),rand(20),Color.RED, rand(7), rand(7)));
    }
    
    public void paint(Graphics g) {
        for (Iterator it=theList.iterator(); it.hasNext();) { 
            Molecule nextMolecule = (Molecule) it.next();
            nextMolecule.paint(g);
        }
    }
        
    private void step() {
        for (Iterator it=theList.iterator(); it.hasNext();) { 
            Molecule nextMolecule = (Molecule) it.next();
            nextMolecule.step();
        }
        theFrame.repaint();
    }
    
    int rand(int max) {
        return (int) (Math.random() * max); 
    }
    
    public void run() {
        for(;;) {
            if (running)
                step();
            pause();
       }
    }
    
    public void toggleRunning() {
        running = !running;
    }

    private void pause() {
        try {
            Thread.sleep(50);
        } catch (Exception e) {}
    }
    
}