//https://blog.nobel-joergensen.com/2010/10/22/spherical-coordinates-in-unity/
public static void SphericalToCartesian(Spherical3 sphereCoords, out Vector3 outCart)
{
float a = sphereCoords.r * Mathf.Cos(sphereCoords.e);
outCart.x = a * Mathf.Cos(sphereCoords.p);
outCart.y = sphereCoords.r * Mathf.Sin(sphereCoords.e);
outCart.z = a * Mathf.Sin(sphereCoords.p);
}
public void StartRecord()
{
mytrail.Clear();
startPos = transform.position;
startSph = new Spherical3();
SphereUtility.CartesianToSpherical(startPos - origin.transform.position, out startSph);
mytrail.Push(startSph);
StartCoroutine("Recording");
}
public static Spherical3 Rotate(Spherical3 inS, float deltaRad)
{
Spherical3 m = new Spherical3();
m.r = inS.r;
m.p = inS.p + deltaRad;
m.e = inS.e;
return(m);
}
public static Spherical3 Mirror(Spherical3 inS)
{
Spherical3 m = new Spherical3();
m.r = inS.r;
m.p = -inS.p;
m.e = inS.e;
return(m);
}
// Update is called once per frame
void Update()
{
Spherical3 sc = new Spherical3();
Vector3 where = toTrack.transform.position - origin.transform.position;
SphereUtility.CartesianToSpherical(where, out sc);
// reflecting
sc.p *= -1;
Vector3 nwhere = new Vector3();
SphereUtility.SphericalToCartesian(sc, out nwhere);
transform.position = startPos + nwhere;
}
public static void CartesianToSpherical(Vector3 cartCoords, out Spherical3 sphereCoords)
{
if (cartCoords.x == 0)
{
cartCoords.x = Mathf.Epsilon;
}
sphereCoords.r = Mathf.Sqrt((cartCoords.x * cartCoords.x)
+ (cartCoords.y * cartCoords.y)
+ (cartCoords.z * cartCoords.z));
sphereCoords.p = Mathf.Atan(cartCoords.z / cartCoords.x);
if (cartCoords.x < 0)
{
sphereCoords.p += Mathf.PI;
}
sphereCoords.e = Mathf.Asin(cartCoords.y / sphereCoords.r);
}
// Use this for initialization
void Start()
{
mytrail = new Stack <Spherical3>();
sc = new Spherical3();
}