public static void CollideAndCorrect(BounceBall ball, Vector3 wallNormal, float delta, float collisionTime)
{
ball.transform.position += ball.velocity * collisionTime;
Vector3 reflected = Vector3.Reflect(ball.velocity, wallNormal);
// debug draw
{
Vector3 hitPoint = ball.transform.position + (-wallNormal).normalized * ball.radius;
Debug.DrawRay(ball.transform.position, ball.velocity.normalized, Color.red);
Debug.DrawRay(hitPoint, wallNormal, Color.white);
Debug.DrawRay(ball.transform.position, reflected.normalized, Color.green);
//Debug.Break();
}
ball.velocity = reflected.normalized * ball.speed;
float remainingTime = delta - collisionTime;
if (remainingTime < float.Epsilon)
{
// done
ball.translationDone = true;
}
else
{
ball.ComputeTranslation(remainingTime);
}
}
public static void CollideAndCorrect(BounceBall ball1, BounceBall ball2, float delta, float collisionTime)
{
ball1.transform.position += ball1.velocity * collisionTime;
ball2.transform.position += ball2.velocity * collisionTime;
Vector3 normal = (ball1.transform.position - ball2.transform.position).normalized;
Vector3 reflected1 = Vector3.Reflect(ball1.velocity, normal);
Vector3 reflected2 = Vector3.Reflect(ball2.velocity, normal);
// debug draw
{
Vector3 hitPoint = ball2.transform.position + normal * ball2.radius;
Debug.DrawRay(ball1.transform.position, ball1.velocity.normalized, Color.red);
Debug.DrawRay(hitPoint, normal, Color.white);
Debug.DrawRay(ball1.transform.position, reflected1.normalized, Color.green);
Debug.DrawRay(ball2.transform.position, ball2.velocity.normalized, Color.red);
Debug.DrawRay(hitPoint, normal, Color.white);
Debug.DrawRay(ball2.transform.position, reflected2.normalized, Color.green);
//Debug.Break();
}
ball1.velocity = reflected1.normalized * ball1.speed;
ball2.velocity = reflected2.normalized * ball2.speed;
float remainingTime = delta - collisionTime;
if (remainingTime < float.Epsilon)
{
// done
ball1.translationDone = true;
ball2.translationDone = true;
}
else
{
ball1.ComputeTranslation(remainingTime);
ball2.ComputeTranslation(remainingTime);
}
ball1.HasCollidedWith(ball2);
ball2.HasCollidedWith(ball1);
}