Letter tracing with animating sprites

Hello, I am trying to create a letter tracing game. like letter school. How could I create a curved shape animation while tracing? I did the straight line animation but I can’t do the curved or complex shaped animation like the letter ‘O’,‘M’,‘C’…

If you have any idea how I can do the curved shaped animation while the letter is tracing. That would very helpful. Thank you very much.

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Did you find a solution ?