private void gameUpdate() {
if (!isPaused && !gameOver) {
if (jack.willHitBrick()) { // collision checking first
jack.stayStill(); // stop jack and scenery
bricksMan.stayStill();
ribsMan.stayStill();
}
ribsMan.update(); // update background and sprites
bricksMan.update();
jack.updateSprite();
fireball.updateSprite();
if (showExplosion) explosionPlayer.updateTick(); // update the animation
}
} // end of gameUpdate()
