Rewrite to use pixel instead square grid

[schlagmichdoch]

I love this little project. I think it looks gorgeous with this nice color palette!

I have reworked the code to avoid problems that come from calculating collisions incorrectly:

• Rewrite to use pixel instead square grid
• Calculate all steps in between frames (fixes constant speed)
• Rewrite collision logic to check vertical, horizontal and diagonal collisions (fixes stuck in endless periodic loop :-( #6, fixes keep it running for more than 2 hours and seems there is a bug #18, fixes Balls are stuck in mirror positions at intersection point #19, fixes Night punches in more squares, making it always dominate. #21, fixes At high speed, colision detection misses blocks  #22)
• Implement check that prevents color change of a square that overlaps with the other ball.

The balls now also start at a random y in a random direction.

I have tested with big and small balls and high speeds. I think this is good to go :)

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Name	Status	Preview	Comments	Updated (UTC)
pong-wars	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 9, 2024 10:24pm

[schlagmichdoch]

Fixed an issue with the ball being off center