Physics Engine for Carrom Game

I am developing a Carrom game and i need the physics engine of the same.It is similar to billiards but it is played with flat wooden coins and a smaller table. The physics are the same. Can someone help me with the code for collision detection and movement of the coins? I have implemented the basic decelerated movement of the coins but failed to develop collision physics.20 coins mean detecting a collision will take 20X20=400 calculations.its eating processing power and time.Someone please help.Please!!!!!

[518 byte] By [neosapiena] at [2007-11-26 22:23:26]