public void paint(Graphics g) {
// set up the double buffering to make the game animation nice and smooth
Graphics2D twoDGraph = (Graphics2D) g;
// take a snap shop of the current screen and same it as an image
// that is the exact same width and height as the current screen
if (back == null) back = (BufferedImage) (createImage(getWidth(), getHeight()));
// create a graphics reference to the back ground image
// we will draw all changes on the background image
Graphics graphToBack = back.createGraphics();
if (lives < 1) {
ball.setXSpeed(0);
ball.setYSpeed(0);
paddle.setSpeed(0);
graphToBack.drawString("GAME OVER", 387, 30);
} else if (bricks.isEmpty()) {
ball.setXSpeed(0);
ball.setYSpeed(0);
paddle.setSpeed(0);
graphToBack.drawString("YOU WIN", 387, 30);
}
ball.moveAndDraw(graphToBack);
paddle.draw(graphToBack);
for (Block x : bricks) {
x.draw(graphToBack);
}
graphToBack.setColor(Color.white);
graphToBack.drawString(score + ":" + lives, 387, 15);
if (ball.didCollide(left) || ball.didCollide(right)) {
ball.setXSpeed(-ball.getXSpeed());
}
if (ball.didCollide(top)) {
ball.setYSpeed(-ball.getYSpeed());
}
if (ball.didCollide(bottom)) {
ball.draw(graphToBack, Color.white);
ball.setXSpeed(2);
ball.setYSpeed(2);
ball.setX(400);
ball.setY(500);
lives--;
ball.setYSpeed(-ball.getYSpeed());
}
// see if the ball hits the paddle
if (ball.didCollide(paddle)) ball.setYSpeed(-ball.getYSpeed());
// brick collision
for (Block x : bricks) {
if (x.didCollide(ball)) {
score++;
x.draw(graphToBack, Color.white);
bricks.remove(x);
if (ball.didCollideTop(x) || ball.didCollideBottom(x)) ball.setYSpeed(-ball.getYSpeed());
else ball.setXSpeed(-ball.getXSpeed());
}
}
// see if the paddles need to be moved
graphToBack.setColor(Color.black);
graphToBack.drawString(score + ":" + lives, 387, 15);
if (keys[0]) paddle.moveLeftAndDraw(graphToBack);
if (keys[1]) paddle.moveRightAndDraw(graphToBack);
twoDGraph.drawImage(back, null, 0, 0);
}