void OnControllerColliderHit(ControllerColliderHit hit)
{
    Rigidbody body = hit.collider.attachedRigidbody;

    if (body == null || body.isKinematic)
        return;

    if (hit.moveDirection.y < -.3f)
        return;

    Vector3 pushDirection = new Vector3(hit.moveDirection.x, 0, hit.moveDirection.z);
    body.velocity = pushForce * pushDirection;
}