public float GetValue(float t)
{
for (int i = 0; i < KeyPoints.Count; i++)
{
if (t >= KeyPoints.ElementAt(i).Key.X)
{
float x = KeyPoints.ElementAt(i).Key.X;
float y = KeyPoints.ElementAt(i).Key.Y;
ITimingFunction function = KeyPoints.ElementAt(i).Value;
float intervalX = (i + 1 < KeyPoints.Count) ? KeyPoints.ElementAt(i + 1).Key.X - x : 1f - x;
float intervalY = (i + 1 < KeyPoints.Count) ? KeyPoints.ElementAt(i + 1).Key.Y - y : 1f - y;
return((function.GetValue((t - x) / intervalX) * intervalY) + y);
}
}
return(1f);
}
