public TransitionColor(ITimingFunction f)
{
_transitionFloat = new TransitionFloat(f)
{
Start = 0, End = 1
};
}
public void AddKeyPoint(float x, float y, ITimingFunction f)
{
if (x < 0 || x > 1)
{
throw new ArgumentException("0f <= x <= 1f");
}
if (y < 0 || y > 1)
{
throw new ArgumentException("0f <= y <= 1f");
}
KeyPoints.Add(new Vector2(x, y), f);
KeyPoints = KeyPoints.OrderBy(v => v.Key.X).ToDictionary(pair => pair.Key, pair => pair.Value);
}
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);
}
public TransitionFloat(ITimingFunction f)
: base(f)
{
}
public TransitionVector4(ITimingFunction f)
: base(f)
{
}
protected TransitionVector(ITimingFunction f)
{
Function = f;
_isInit = false;
}
public void ClearKeyPoints(ITimingFunction f)
{
KeyPoints.Clear();
KeyPoints.Add(new Vector2(0, 0), f);
}
public CustomFunction(ITimingFunction f)
{
KeyPoints = new Dictionary <Vector2, ITimingFunction> {
{ Vector2.Zero, f }
};
}
