Ode is a project mainly written in C and C++, it's free.
ODE - Open Dynamics Engine - for Marmalade
This module can be used to build the Open Dynamics Library library into Marmalade applications.
The source is downloaded and compiled unmodified from:
http://sourceforge.net/projects/opende/files/ode-0.11.1.tar.gzThe included example example.mkb will build the lib and run a simple demo. The demo shows simple physics in a dynamic line animation.
The structure of this module shows how local modifications can be stored and used with updated source distributions. The upstream directory contents are copied to the modified directory but without overwriting existing files.