cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   bsharp42
   Member

   Hello,

   Is there a way to do the following ?

   Lets say I draw a certain shape on the screen, and when the shape completes (as in draws a connecting line. No incomplete drawings), I want to be able to do stuff to the sprite objects that are within that drawn shape.

   Any help would be very much appreciated.

   Posted 2 years ago #
2. 

   Serban
   Member

   Can you be a little more specific? What sorts of things would you like to do to your sprites? For example, do you want to make sure they don't get out of the shape you've drawn?

   Serban

   Posted 2 years ago #
3. 

   bsharp42
   Member

   Lets say I want them to disappear(delete, won't need it anymore) if its inside the shape

   Posted 2 years ago #
4. 

   Serban
   Member

   There are many approaches. This link should give you a good start (and code). I don't really know your specific needs, but I suggest the "Crossings Test" section.

   http://erich.realtimerendering.com/ptinpoly/

   Good luck!

   Serban

   Posted 2 years ago #

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