2D Collision Detection
Looking to write a 2d game and having a hard time coding collision detection?
Interactive visuals to help show and explain how to tell if two objects are intersecting and what their displacements should be. Ranges from rectangles on rectangles to rectangle on half pipes. Any platformer or physics based games should take a look.
http://www.metanetsoftware.com/technique/tutorialA.html#section1
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