// Update is called once per frame
void Update()
{
// on a deferred add (while running) may get an OP update before actually added to GE. This would be bad.
if (nbody.engineRef == null)
{
return;
}
// TODO: optimize/accuracy: if on rails could use orbitU (or KS) directly
// Now there is MapToRender MUST use physics and not transform position
Vector3 centerPos = GravityEngine.Instance().GetPhysicsPosition(aroundNBody);
// Is the resulting orbit and ellipse or hyperbola?
bool mapToScene = true;
Vector3d pos = ge.GetPositionDoubleV3(nbody);
Vector3d vel;
if (velocityFromScript)
{
vel = new Vector3d(velocity);
}
else
{
vel = ge.GetVelocityDoubleV3(nbody);
}
orbitU.InitFromRVT(pos, vel, ge.GetPhysicalTimeDouble(), aroundNBody, false);
// Add lines to the inclination=0 plane of the orbit
Vector3[] points = orbitU.OrbitPositions(numPoints, centerPos, mapToScene, hyperDisplayRadius);
int totalPoints = numPoints + 2 * numPlaneProjections;
if (numPlaneProjections > 0)
{
Vector3[] pointsWithProj = new Vector3[totalPoints];
int projEvery = numPoints / numPlaneProjections;
int p = 0;
int orbitP = 0;
while (p < totalPoints)
{
pointsWithProj[p++] = points[orbitP];
if ((orbitP % projEvery) == 0)
{
// add a line to plane and back
pointsWithProj[p++] = Vector3.ProjectOnPlane(points[orbitP], planeNormal);
pointsWithProj[p++] = points[orbitP];
}
orbitP++;
}
lineR.SetPositions(pointsWithProj);
}
else
{
lineR.SetPositions(points);
}
}
