15. Another Challenge

• Pick two centers, say (300,150) and (310, 150).
• Use a big 500x300 canvas.

• Colors:

  • magenta when the distance to both centers is less than 15
  • red when the distance to left point is less than 15
  • blue when the distance to right point is less than 15
  • white when the distance to either point is less than 30
  • gray otherwise

  

• Move the centers to (175,150) and (325, 150). Repeat the pattern by reducing distances to less than 30 by using remainder.