HWJ13_BallBounce

Create an applet called HWJ13_BallBounce starter code here. Have the ball:

• appear at a random location on the screen
• Have the ball move originally in a random direction.
• Add code so that every 40 times it moves the color changes (between any color you want).
• Add a button that stops the animation and a button to start the animation.

Advanced

• Make the ball get slightly bigger and smaller as the animation goes on (like a beating heart).
• Get slighly faster as the time goes on.
• A little bit of randomness so that the ball does not always go in a diamond pattern

Game for Advanced

• Copy the ball so that you have 3 bouncing around the screen.
• Make it a game (maybe have a square that you control and avoid it, maybe...)

Hints:

• Have these global variables

  int ballX,ballY, changeInX, changeInY, ballSize   

• Remember there are 20 frames a second. So if we want 2 seconds, ti would be 40 frames; we might have a statement if (frames%40==0)