void CreateRing(Vector2 pos)
{
if (ring.Count == 0)
{
var b = Instantiate(BodyPrefab) as Transform;
b.gameObject.SetActive(true);
var cb = b.GetComponent <CelestialBody>();
cb._transform.position = startRingPos;
SetSizeFor(cb, 0.5f);
cb.FindAndSetMostProperAttractor();
cb.enabled = false;
b.GetComponentInChildren <SpriteRenderer>().color = new Color(0.6f, 0.9f, 0, 9f);
var cl = cb.GetComponentsInChildren <Collider2D>();
for (int i = 0; i < cl.Length; i++)
{
cl[i].enabled = false;
}
ring.Add(cb);
}
if (ring[0].Attractor == null)
{
return;
}
var mouseDist = (pos - startRingPos).magnitude;
var radius = ring[0].Attractor._transform.position - ring[0]._transform.position;
var r = radius.magnitude;
var cnt = (int)(2 * Mathf.PI * r / Mathf.Max(mindist, mouseDist));
bool countCange = false;
while (ring.Count < cnt - 1)
{
var d = Instantiate(ring[0]) as CelestialBody;
d.gameObject.SetActive(true);
ring.Add(d);
countCange = true;
}
while (ring.Count > cnt)
{
var d = ring[cnt];
ring.RemoveAt(cnt);
Destroy(d.gameObject);
countCange = true;
}
for (int i = 0; i < ring.Count; i++)
{
ring[i]._transform.position = ring[i].Attractor._transform.position + new Vector3(Mathf.Cos(2 * Mathf.PI * ((float)i / (cnt - 1))) * r, Mathf.Sin(2 * Mathf.PI * ((float)i / (cnt - 1))) * r, 0);
if (countCange)
{
ring[i].MakeOrbitCircle();
if (CelestialBody.CrossProductZ(ring[i].Velocity, ring[i].RadiusVector) < 0)
{
ring[i].Velocity = -ring[i].Velocity;
}
}
}
}
