/// <summary>
/// Checks whether the collision is happening on this part's wheel.
/// </summary>
/// <returns></returns>
private bool IsCollidingWheel(Vector3 collisionPoint)
{
if (wheelCollider == null) return false;
float wheelDistance = Vector3.Distance(wheelCollider.ClosestPointOnBounds(collisionPoint), collisionPoint);
float partDistance = Vector3.Distance(part.collider.ClosestPointOnBounds(collisionPoint), collisionPoint);
return wheelDistance < partDistance;
}
