public override void Update(AnimationManager animMan)
{
Polygon?.Update(animMan);
if (Polygon?.Points == null)
{
return;
}
if (Timing != null)
{
float t = Math.Max(0f, Math.Min((Time - Timing[0] * TimeScale - TimeDelay) / Timing[1] / TimeScale, 1f));
Progress = (float)Math.Sin(t * Math.PI / 2f);
if (TimeAuto)
{
Time += animMan.DeltaTime;
}
}
int lengthShort = (int)Math.Floor(1 + (Polygon.Points.Length - 1) * ProgressF);
int lengthLong = Math.Min(lengthShort + 1, Polygon.Points.Length);
int lengthArr = lengthLong;
if (lengthLong <= 1)
{
lengthArr = 2;
}
if (_Points == null || _Points.Length != lengthArr)
{
_Points = new PointF[lengthArr];
}
if (_Progress != ProgressF)
{
_Progress = ProgressF;
animMan.Repaint = true;
}
if (lengthLong <= 1)
{
PointF p = Polygon.Points[0];
_Points[0] = p;
_Points[1] = new PointF(
p.X + 0.001f,
p.Y
);
return;
}
Array.Copy(Polygon.Points, _Points, lengthShort);
float endStep = (1 + (Polygon.Points.Length - 1) * ProgressF) - lengthShort;
PointF a = Polygon.Points[lengthShort - 1];
PointF b = Polygon.Points[lengthLong - 1];
_Points[lengthLong - 1] = new PointF(
a.X + (b.X - a.X) * endStep + 0.001f,
a.Y + (b.Y - a.Y) * endStep
);
}
