// O(n²)
private void FixedUpdate()
{
int positionInList = SimulatedObjects.IndexOf(this);
foreach (Gravitation other in SimulatedObjects.Skip(positionInList))
{
float distance = Vector3.Distance(this.transform.position, other.transform.position);
float force = GravitationConstant * this.Mass * other.Mass / Mathf.Clamp(Mathf.Pow(distance, 2), 0.1f, float.PositiveInfinity);
Vector3 direction = (other.transform.position - this.transform.position).normalized;
if (!this.isStatic)
{
rigidbody.AddForce(direction * force);
}
if (!other.isStatic)
{
other.rigidbody.AddForce(-direction * force);
}
}
}
private void OnDisable()
{
SimulatedObjects.Remove(this);
}
private void OnEnable()
{
SimulatedObjects.Add(this);
}
