// Distance between two ClosestPointOnBounds
// this is needed in cases where entites are really big. in those cases,
// we can't just move to entity.transform.position, because it will be
// unreachable. instead we have to go the closest point on the boundary.
//
// Vector2.Distance(a.transform.position, b.transform.position):
// _____ _____
// | | | |
// | x==|======|==x |
// |_____| |_____|
//
//
// Utils.ClosestDistance(a.collider, b.collider):
// _____ _____
// | | | |
// | |x====x| |
// |_____| |_____|
//
public static float ClosestDistance(Collider2D a, Collider2D b)
{
return(Vector2.Distance(a.ClosestPointOnBounds(b.transform.position),
b.ClosestPointOnBounds(a.transform.position)));
}
