cocos2d for iPhone

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

1. 

   gargantuan
   Member

   I need to create a bunch of cpShapes using SpaceManager and then iterate through them to join them together with constraints.

   So I've tried storing them in an NSMutableArray, but I keep getting an incompatible pointer type. Does anyone know how I can accomplish this? Do I need to use something other than an array?

   thanks
   -t

   Posted 1 year ago #
2. 

   Rhaal
   Member

   You could create a custom object that encapsulates a cpShape, and then push that object onto the array... or what I do is use std::vector from the STL.

   http://www.cprogramming.com/tutorial/stl/vector.html

   std::vector<cpShape*> MyShapes;

   Posted 1 year ago #
3. 

   mobilebros
   Moderator

   NSMutableArray *shapes = ...;
   
   //Put it in
   [shapes addObject:[NSValue valueWithPointer:shape]];
   
   //Pull it out
   for (NSValue *v in shapes)
   {
        cpShape *shape = [v pointerValue];
   }

   Posted 1 year ago #
4. 

   Rhaal
   Member

   Interesting. I have only done that with ints. Will the shape pointer be retained within the NSValue?

   Posted 1 year ago #
5. 

   mobilebros
   Moderator

   @Rhaal - nope cpShape doesn't get retained (cause it can't) but NSValue does... which doesn't really help you.

   Posted 1 year ago #
6. 

   gargantuan
   Member

   I actually implemented Rhaal's metho before reading this, but the NSValue method seems like the way to go. Cheers for the heads up.

   Posted 1 year ago #

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