import objectdraw.*;

// a simple one-player version of the game Pong
public class Pong extends FrameWindowController {
    
    // dimensions of the window
    private static final int WINDOW_WIDTH = 500;
    private static final int WINDOW_HEIGHT = 550;
    
    // margin between court and window boundaries
    private static final int COURT_MARGIN = 50;
    private static final int COURT_LENGTH = WINDOW_WIDTH - 2 * COURT_MARGIN;

    // dimensions of the paddle
    private static final int PADDLE_WIDTH = 60;
    private static final int PADDLE_HEIGHT = 20;

    // the paddle itself
    private FilledRect paddle;

    // the rectangle surrounding the court playing area
    private FramedRect court;

    public void begin() {
        resize(WINDOW_WIDTH, WINDOW_HEIGHT);
    
        // make the playing area
        court = new FramedRect(COURT_MARGIN, COURT_MARGIN,
            COURT_LENGTH, COURT_LENGTH, canvas);  
       
        // make the paddle
        paddle = new FilledRect(COURT_MARGIN + (COURT_LENGTH - PADDLE_WIDTH) / 2,
            COURT_MARGIN + COURT_LENGTH - PADDLE_HEIGHT - 1,
            PADDLE_WIDTH, PADDLE_HEIGHT, canvas);
    }
    
    public void onMouseMove(Location point) {
            double paddleY = COURT_MARGIN + COURT_LENGTH - PADDLE_HEIGHT - 1;
        if (point.getX() < COURT_MARGIN) {
            // mouse past left edge, place paddle at left edge of the court
            paddle.moveTo(COURT_MARGIN, paddleY);
        } else if (point.getX() > COURT_MARGIN + COURT_LENGTH - PADDLE_WIDTH) {
            // mouse past right edge, place paddle at right edge of the court
            paddle.moveTo(COURT_MARGIN + COURT_LENGTH - PADDLE_WIDTH, paddleY);
        } else {
            // mouse in the court area, keep the paddle lined up with the mouse
            paddle.moveTo(point.getX() - PADDLE_WIDTH / 2, paddleY);
        }

    }

    public void onMouseClick(Location point) {
        // make a ball appear!
        new PongBall(point, paddle, court, canvas);
    }


}