I want to write a program for the kids to draw alphabets with their hands. For example, consider an empty A letter that the child fills by swiping right inside it.
could any one help me?
This is really a nice example. You draw objects with your finger and they almost come to life: Run with debug drawing to see the bodies structure: Note that chain shapes cannot collide with other chain shapes in box2d. Instead we create bodies with multiple polygon shapes. You can play...