public sealed class FunctionSequence{ List> functions = new List>(); public int Count { get { return functions.Count; } } public FunctionSequence(params Func[] Funcs) { functions.AddRange(Funcs); } public void Add(Func Item) { functions.Add(Item); } public void AddRange(IEnumerable> Collection) { functions.AddRange(Collection); } public void Insert(int Index, Func Item) { functions.Insert(Index, Item); } public bool Remove(Func Item) { return functions.Remove(Item); } public void RemoveAt(int Index) { functions.RemoveAt(Index); } public void Clear() { functions.Clear(); } public TValueType Invoke(TValueType Input) { TValueType Temp = Input; foreach(var Function in functions) Temp = Function(Temp); return Temp; } public static implicit operator Func(FunctionSequence Sequence) { return new Func(Input => { return Sequence.Invoke(Input); }); }}And an example usage:
System.Drawing.Color GrayscaleShader(System.Drawing.Color Color){ float Value = (0.299f * (float)Color.R) + (0.587f * (float)Color.G) + (0.114f * (float)Color.B); return System.Drawing.Color.FromArgb(Color.A, (int)Value, (int)Value, (int)Value);}System.Drawing.Color SepiaShader(System.Drawing.Color Color){ return System.Drawing.Color.FromArgb(Color.A, Color.R + 40, Color.G + 20, Color.B);}Func ToSepia = (Func)new FunctionSequence(GrayscaleShader, SepiaShader);System.Drawing.Color RedAsSepia = ToSepia(System.Drawing.Color.Red);I can't really see any decent use for this, but I was just happy it worked like it was supposed to as I'm still new to lambda functions and expressions.
And as I was typing this, it becomes apparent to me that:
new Func(Input => { Input = GrayscaleShader(Input); Input = SepiaShader(Input); return Input; });would be a much simpler solution and would have taken much less time XD. Oh well!
