I have a top-down car game which takes place in an arena. The game is very very light on physics, so I'm not actually using a physics engine. The cars' movement is mostly managed by a struct I called
Velocity, which stores a movement vector, an angle and speed. The speed will be mostly at the car's top speed, but there's acceleration involved to make reversing and going forwards again a bit smoother; the angle is increased or decreased depending on player input for turning; and then, the movement vector is updated with the new speed and angle values.
For collision detection, I've opted for SAT and as far as detection goes, it's working well. When it comes to resolution, however, I'm a bit at a loss. Out of the SAT implementation, I can get the MTV, but I feel it doesn't quite work with cars. I was thinking something in terms of maybe using the overlap value of the MTV (to acknowledge how strong was the hit) and the cars' movement vectors to define what's gonna happen to them, but I'm not coming up with anything.
(For completeness' sake, I'm using C++, Marmalade and IwGame, but I think the solution to this problem would be pretty much platform independent.)
Any ideas? Thanks!