A fast, easy to use, free, and community supported 2D game engine
ShotgunKlaus
Member
Hi!
I'm trying to get different layers within my Chipmunk Space. I found the cpShape->layers property, but this limits me to 32 different layers. I need 320 to be able to rotate the view properly. Is there any other way to implement this, other than altering the cpShape Class?
Thanks in advance,
SK
Woah. Why do you need 320 layers? One for each pixel in the width of the screen? What are you trying to accomplish, there's probably a better way to do it than layers.
ShotgunKlaus
Member
Exactly. I'm trying to build a 3-Dimensional Puzzle Game where you can rotate the view in 90° steps.
I thought about altering the cpShape class, adding a property to identify the layer the object is in and then filter the collisions with a custom collision handler.
If there's any better idea, achieving this functionality I'd be glad to hear about :)
Its sounds like you really want a 3D physics engine to be honest.
One thing to keep in mind is that both Chipmunk and Box2D perform the collision detection in 2D. While layers can let you fake pseudo 3D collisions much like Little Big Planet does, you can't actually smoothly transition between layers. It's either in a particular layer or not, and there is nothing to prevent you from moving into a layer occupied by another shape. You also don't have any shape in the 3rd dimension, just whatever extruded shape it is in 2D.
Lastly, the collision detection is optimized for 2D. Both engines use 2D spatial indexes to speed up the collision detection. This means that when you have a lot of objects that overlap in the xy plane, the collision detection can get pretty slow.
Bullet and ODE are popular and open source.
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