/// <summary>
/// a segment of one track
/// </summary>
/// <param name="previousTrackSegment">the previous segment of the track</param>
/// <param name="trackWidthEnd">the width of the Tracksegment where it ends</param>
/// <param name="endPoint">the point where the segment ends</param>
/// <param name="endDirection">the direction of the segment where it ends</param>
protected TrackSegment(TrackSegment previousTrackSegment, float trackWidthEnd, Vector2 endPoint, Vector2 endDirection)
{
_previousTrackSegment = previousTrackSegment;
if (_previousTrackSegment != null)
{
_previousTrackSegment.TrackSegmentChanged += PreviousTrackSegmentChanged;
}
TrackWidthEnd = trackWidthEnd;
_endDirection = endDirection;
_endPoint = endPoint;
}
/// <summary>
/// The start/FinishLine of a Track
/// </summary>
/// <param name="previousTrackSegment">the previous segment of the track</param>
/// <param name="trackWidthEnd">the width of the Tracksegment where it ends</param>
/// <param name="endPoint">the point where the segment ends</param>
/// <param name="endDirection">the direction of the segment where it ends</param>
public StartLine(TrackSegment previousTrackSegment, float trackWidthEnd, Vector2 endPoint, Vector2 endDirection)
: base(previousTrackSegment, trackWidthEnd, endPoint, endDirection)
{
}
private float _startingAngle; //the angle of the direction vector at the beginning of the curve in polar coordinates to the middlePoint
/// <summary>
/// a corner of a track
/// </summary>
/// <param name="previousTrackSegment">the previous TrackSegment. Must not be null</param>
/// <param name="trackWidthEnd">the width of the Curve</param>
/// <param name="endPoint">The Point where the corner ends</param>
public Curve([NotNull] TrackSegment previousTrackSegment, float trackWidthEnd, Vector2 endPoint)
: base(previousTrackSegment, trackWidthEnd, endPoint, null)
{
CalculateDerivedValues();
_endDirection = GetDirectionAtAngle(_angle);
}
/// <summary>
/// a straight segment of a track
/// </summary>
/// <param name="previousTrackSegment">the previous segment of the track</param>
/// <param name="trackWidthEnd">the width of the Tracksegment where it ends</param>
/// <param name="length">the length of the straight</param>
public Straight(TrackSegment previousTrackSegment, float trackWidthEnd, float length)
: base(previousTrackSegment, trackWidthEnd, previousTrackSegment.EndDirection.Normalize() * length, previousTrackSegment.EndDirection)
{
_lenght = length;
}