private void satellite_fixed_update()
{
float bearing = (internal_transform.localEulerAngles.z + 90) * Mathf.Deg2Rad;
Vector2 input = new Vector2(Mathf.Cos(bearing), Mathf.Sin(bearing)) * DebrisNoirsInput.get_accelerate();
// add velocity based on input
planetaria_rigidbody.relative_velocity += input * Time.fixedDeltaTime;
Vector2 velocity = planetaria_rigidbody.relative_velocity;
// drag in coincident direction varies from coefficient of 1->~0.8->~0.5
float similarity = Vector2.Dot(velocity.normalized, input);
float drag_modifier = Mathf.Lerp(0.6f, 1.0f, (similarity + 1f) / 2);
Vector2 coincident_velocity = input != Vector2.zero ? (Vector2)Vector3.Project(velocity, input) : velocity;
coincident_velocity *= Mathf.Pow(drag_modifier, Time.deltaTime);
// get perpendicular velocity (unmodified)
Vector2 perpendicular_velocity = input != Vector2.zero ? Vector3.ProjectOnPlane(velocity, input) : Vector3.zero;
// apply velocity changes
planetaria_rigidbody.relative_velocity = coincident_velocity + perpendicular_velocity;
// apply unusued drag
//planetaria_rigidbody.relative_velocity *= Mathf.Pow(0.8f, Time.deltaTime * (1f - input_direction.magnitude));
}
public Vector2 acceleration_direction()
{
float current_angle = internal_transform.localEulerAngles.z;
Vector2 direction = new Vector2(Mathf.Cos(current_angle * Mathf.Deg2Rad), Mathf.Sin(current_angle * Mathf.Deg2Rad));
if (DebrisNoirsInput.get_accelerate() == 1)
{
fuel += Time.deltaTime;
}
else
{
fuel -= Time.deltaTime;
}
fuel = Mathf.Clamp01(fuel);
return(direction * fuel);
}