public void GetTransfrom(LaneType type, float distance, ref Transform mat)
{
if (m_SegmentIndex < m_TrackSegmentArray.Count)
{
TrackSegment segment = null;
int knotsCount = 0;
var controlPoints = new ControlPoint();
var controlUps = new ControlPoint();
var lane = 0;
float factor = 0;
switch (type)
{
case LaneType.Lane0: lane = 0; break;
case LaneType.Lane1: lane = 1; break;
case LaneType.Lane2: lane = 2; break;
}
while (m_SegmentIndex < m_TrackSegmentArray.Count)
{
segment = m_TrackSegmentArray[m_SegmentIndex];
knotsCount = segment.SplineLane[lane].GetKnotsCount();
segment.SplineLane[lane].GetControlPointsFor(m_BeginKnot, ref controlPoints);
segment.SplineLane[lane].GetControlUpsFor(m_BeginKnot, ref controlUps);
Vector3 toNextKnot = (controlPoints[2] - controlPoints[1]);
float linearDistToNextKnot = toNextKnot.magnitude;
m_DistanceTravelledFromBeginKnot += distance;
if (m_DistanceTravelledFromBeginKnot >= linearDistToNextKnot)
{
m_DistanceTravelledFromBeginKnot -= linearDistToNextKnot;
m_BeginKnot++;
if (m_BeginKnot == knotsCount - 1)
{
m_BeginKnot = 0;
m_SegmentIndex++;
}
}
else
{
factor = m_DistanceTravelledFromBeginKnot / linearDistToNextKnot;
if (m_SegmentIndex < m_TrackSegmentArray.Count)
{
Vector3 newPosition = Spline.CalculatePoint(ref controlPoints, factor);
Vector3 forward = Spline.CalculateTangent(ref controlPoints, factor);
Vector3 up = Spline.CalculatePoint(ref controlUps, factor);
mat.position = newPosition;
mat.rotation = Quaternion.LookRotation(forward, up);
}
break;
}
}
}
}
