Calculate the intersection of two rectangles.
const SDL_Rect * A, SDL_bool SDL_IntersectRect(const SDL_Rect * B, SDL_Rect * result);
|A||an SDL_Rect structure representing the first rectangle|
|B||an SDL_Rect structure representing the second rectangle|
|result||an SDL_Rect structure filled in with the intersection of rectangles
Returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
result is NULL then this function will return SDL_FALSE.
This function is available since SDL 2.0.0.