// Attract another gravitational body
public void Attract(GravityBody gb)
{
// Vector from target body to this body
Vector3 r_to_this = this.bodyTransform.position - gb.bodyTransform.position;
// Newton's law of gravitation
Vector3 force = r_to_this * G * gb.GetMass() * this.GetMass() / Mathf.Pow(r_to_this.magnitude, 3);
gb.SetForceTo(force);
}
// Set this body to orbit around some other CentreBody, tangential to some normal vector
private void SetOrbitalVelocity(Vector3 normal)
{
Vector3 r_to_target = this.bodyTransform.position - OrbitTarget.bodyTransform.position;
float magnitude = r_to_target.magnitude;
Vector3 unitTangent = Vector3.Cross(normal, r_to_target);
Vector3 orbitalVelocity = Mathf.Sqrt(G * OrbitTarget.GetMass() / Mathf.Pow(magnitude, 3)) * unitTangent;
initVelocity = orbitalVelocity;
Debug.Log(initVelocity);
}
// Set this body to orbit around some other CentreBody, tangential to some normal vector
private void SetOrbitalVelocity(Vector3 normal)
{
// Vector pointing towards the orbit target
Vector3 r_to_target = this.bodyTransform.position - OrbitTarget.bodyTransform.position;
// Magnitude
float magnitude = r_to_target.magnitude;
Vector3 tangentDirection = Vector3.Cross(normal, r_to_target);
Vector3 orbitalVelocity = Mathf.Sqrt(G * OrbitTarget.GetMass() / Mathf.Pow(magnitude, 3)) * tangentDirection;
// Setting this body's initial velocity as the calculated orbit velocity
initVelocity = orbitalVelocity;
Debug.Log(initVelocity);
}
