You can run this project by using maven.

Make sure that for the compiling you are using the JDK 11 otherwise it won't work. I tested it with many different JDK 12 13 and 14 both of them failed to run the the jar file.

Otherwise the code has been compiled in JDK 11 and the maven should run also without jar file.

My general idea was to create a billiard desk with a ball that resemble a 8 ball. Using this generated a new challenge. The boarders have to match the green walls of the billiard table. This has been achieved with invisible walls that serves as bound for the ball. Seeing that the ball goes crazy in the task description. I have implemented effects on it that should be small/ not aggressive. This fits more the cartoonist style that fits with the ball and the desk.

• Acceleration: The ball will get randomly faster or slower. Each time the wanted speed is reached the ball will get a new speed to reach.
• ImpactSpeedLost: The speed gained during the acceleration is lost after a wall hit
• CartoonBoom: A cartoonist effect that simulates a hit after the balls hit the wall.
• FlashHit: The ball gets a white flash after it hits the wall. This has some kind of gaming effect when an enemy gets hit. (As an exemple Zelda 2. When you get hit or hit an enemy the color of the character will change for a few seconds)
• Rotation: The ball has a 1/200 chance to rotate and on this a 1/2 chance to rotate clockwise and 1/2 chance to rotate anti-clockwise. This might be hard to see since the speed had to be quit fast such that deceleration don't seem lagging. After a reset the rotation will still continue were it stopped.
• Sizeincrease: The ball will increase in size and decrease until it has reached the randomly chosen radius. Then a new radius to achieve is chosen.(has a predefined maximum and minimum such that it isn't to much)
• Autocorrection: The ball checks if it will magically get stuck and resets himself to the middle of the screen.

While testing it for 12 hour straight I couldn't reproduce the bug. There is a small chance that with a 45° angle on a corner the ball could slip through the edge if it reaches a certain speed. I added a small reset function here that should fix it. It's just hard to replicate thus hard to patch.

Sometime the ball gets an intersection with a rectangle twice. Effectpause will reduce the amount of this bugs by a good amount. Depending on the acceleration and the angle. It might happen that the ball clip itself into the wall. There the ball will do some sawtooth movement. The only solution here was to make a reset function otherwise the ball would leave the area after making really strange movement.