private void CalculateOrbit()
{
// clear lists and initialize position and velocity
_positions.Clear();
// temporary variables used to create positions
Vector3 acceleration;
Vector3 velocity;
// init pos vel depending on if we're in the editor or not.
_positions.Add(_this_body.position);
if (Application.isPlaying)
{
velocity = _this_body.velocity;
}
else
{
velocity = _this_body.initialVelocity;
}
_initial_velocity = velocity;
// iterate forward using the simulation system and future timesteps
for (int i = 0; i < time_into_future; i++)
{
acceleration = SimulationSystem.CalculateAcceleration(_positions[i], _this_body); // get current acceleration
velocity = velocity + (acceleration * Universe.physicsTimeStep); // update velocity
_positions.Add(_positions[i] + (velocity * Universe.physicsTimeStep)); // add new position
}
}