public void GetSectorIdAt(Vector3 localPosition, out MyPlanetSectorId id)
{
id = new MyPlanetSectorId();
Vector3D local = localPosition;
MyCubemapHelpers.ProjectToNearestFace(ref local, out localPosition);
MyCubemapHelpers.GetCubeFaceDirection(ref localPosition, out id.Direction);
id.Direction = -id.Direction;
localPosition = (localPosition + 1f) * .5f;
id.Position = new Vector3S(localPosition.X * m_numSectors, localPosition.Y * m_numSectors, localPosition.Z * m_numSectors);
if (id.Position.X == m_numSectors)
{
id.Position.X = (short)(m_numSectors - 1);
}
if (id.Position.Y == m_numSectors)
{
id.Position.Y = (short)(m_numSectors - 1);
}
if (id.Position.Z == m_numSectors)
{
id.Position.Z = (short)(m_numSectors - 1);
}
}
// Compute the position in the sector cube from planet space coordinates.
private void LocalPositionToSectorCube(Vector3D localCoords, out Vector3 sectorCoords)
{
Vector3 textcoord;
MyCubemapHelpers.ProjectToNearestFace(ref localCoords, out textcoord);
// bring textcoords into 0-1 space.
textcoord = (textcoord + 1f) * .5f;
sectorCoords = new Vector3(textcoord.X * m_numSectors, textcoord.Y * m_numSectors, textcoord.Z * m_numSectors);
if (sectorCoords.X == m_numSectors)
{
sectorCoords.X = (m_numSectors - 1);
}
if (sectorCoords.Y == m_numSectors)
{
sectorCoords.Y = (m_numSectors - 1);
}
if (sectorCoords.Z == m_numSectors)
{
sectorCoords.Z = (m_numSectors - 1);
}
}