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20. Click Circle Questions

Main questions about the click circle project (20.6.4):

Stopping an animation

Stop condition How?
user action return (stop-with model) from a handler
model state (stop-when ...) in big-bang

Win screen

Question: How do you make a win screen show?

Answer: There are three steps:

  1. Write a win-draw-handler function.
  2. Write a should-stop? function. This is a technical annoyance. For now this can do nothing:
(define (should-stop? model) 
    false)
  1. Add a (stop-when should-stop? win-draw-handler) clause to your big-bang.