/* cappello@cs.ucsb.edu
   Peter Cappello
   Perm. no. 123456
   Project 6: Zap 'em! Using inheritance;
                       burn processing is in MousePressed;
                       game initialization is put in a method;
 */
import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class zapem extends Applet implements ActionListener, MouseListener {
    final static int NUMTYPES = 2,         // number of kinds of roaches
                     FIELDSIZE = 350,
                     XUL = 25,
                     YUL = 35,
                     XLR = 25 + FIELDSIZE,
                     YLR = 35 + FIELDSIZE,
                     RECTANGLE = 0,
                     OVAL      = 1,
                     MAXROACHES = 9;
    Label     speedL  = new Label("Speed: 1 - 5 (Slowest)"),
              numL    = new Label("Number of Roaches: 1 - 9");
    TextField speedT  = new TextField("5", 1),
              numT    = new TextField("2", 1);
    int speed = 5,                 // speed of movements
        num = 2;                   // number of roaches
    Roach roaches[] = new Roach[MAXROACHES];

    public void init() {
        add(speedL); add(speedT);
        add(numL);   add(numT);
        speedT.addActionListener(this);
        numT.addActionListener(this);
        addMouseListener(this);
        newGame();
    }

    public void paint(Graphics g) {
        g.drawRect(XUL, YUL, FIELDSIZE, FIELDSIZE);
        // Lost game?
        for (int i = 0; i < num; i++)
            if (roaches[i].out(XUL, YUL, XLR, YLR)) {
                g.fillRect(XUL, YUL, FIELDSIZE, FIELDSIZE);
                return;
            }
        // move & draw roaches
        for (int i = 0; i < num; i++) {
            roaches[i].move();
            roaches[i].draw(g);
        }
        try {
            Thread.sleep(speed*100);
        }
        catch (InterruptedException e) {
            showStatus(e.toString());
        }
        repaint();
    }

    public void actionPerformed(ActionEvent e) {
        speed = Integer.parseInt(speedT.getText());
        if (speed < 1 || speed > 5) {
            speedT.setText("5");
            speed = 5;
        }
        num   = Integer.parseInt(numT.getText());
        if (num < 1 || num > 9) {
            numT.setText("2");
            num = 2;
        }
        newGame();
        repaint();
    }

    public void newGame() {
        for (int i = 0; i < num; i++)
            switch ((int) (Math.random()*NUMTYPES)) {
                case RECTANGLE:
                    roaches[i] = new Rectangle(FIELDSIZE);
                    break;
                case OVAL:
                    roaches[i] = new Oval(FIELDSIZE);
                    break;
            }
    }

    public void mousePressed(MouseEvent e) {
        int x = e.getX(), y = e.getY();
        // burn roaches that cursor is in
        for (int i = 0; i < num; i++)
            if (roaches[i].in(x, y)) {
                roaches[i].setColor(Color.red);
                roaches[i].setDx(0);
                roaches[i].setDy(0);
            }
        repaint();
    }
    public void mouseClicked(MouseEvent e)  {}
    public void mouseReleased(MouseEvent e) {}
    public void mouseEntered(MouseEvent e)  {}
    public void mouseExited(MouseEvent e)   {}
}