Alice for iPad core source code

I need to develop something like Alice for iPad which is very well-known. I just need the source code for the main functions like 1. objects moving according to accelerometer & gravity 2. objects being able to be thrown with realistic motion 3. objects to work together with other objects, like being blocked by other objects 4. objects spinning, and objects flying around. if you see the video, you'll get what I mean. [login to view URL] All the images will be developed by myself, I just need the main source code for it.