PHP makaka forever

public class ChangeColor : MonoBehaviour
{
    private struct ColorPair
    {
        //Цвет краски
        public Color PaintColor;
        //Цвет обьекта
        public Color ObjColor;

        public override bool Equals(object Obj)
        {
            ColorPair P = (ColorPair)Obj;
            return (this.PaintColor.Equals(P.PaintColor) && this.ObjColor.Equals(ObjColor));
        }

        public ColorPair(Color PaintColor, Color ObjColor)
        {
            this.PaintColor = PaintColor ;
            this.ObjColor = ObjColor;
        }

        public override int GetHashCode()
        {
            return (PaintColor.GetHashCode() / 13) + (ObjColor.GetHashCode() * 7);
        }
    }

    // таблица перекраски [краска, цвет] => [цвет]
    private Dictionary<ColorPair, Color> RepaintTable = new Dictionary<ColorPair, Color>();
    public Color CurrentColor;

    public Color NullColor = Color.TransparentBlack;
    public Color redz;
    public Color bluez;
    public Color yellowz;
    public Color orangez;
    public Color purplez;
    public Color greenz;

    void InitRepaintTable()
    {
        CurrentColor = NullColor;

        RepaintTable.Add(new ColorPair(yellowz, NullColor), yellowz);
        RepaintTable.Add(new ColorPair(redz, NullColor), redz);
        RepaintTable.Add(new ColorPair(bluez, NullColor), bluez);

        RepaintTable.Add(new ColorPair(redz, yellowz), orangez);
        RepaintTable.Add(new ColorPair(redz, bluez), purplez);

        RepaintTable.Add(new ColorPair(bluez, yellowz), greenz);
        RepaintTable.Add(new ColorPair(bluez, redz), purplez);

        RepaintTable.Add(new ColorPair(yellowz, redz), orangez);
        RepaintTable.Add(new ColorPair(yellowz, bluez), greenz);
    }

    void OnTriggerEnter(Collider block)
    {
        Color PaintColor = (Color)block.gameObject.Tag;
        // или если тег занят сделай какоенить преобразование ntrcn -> цвет
        Color ObjColor = CurrentColor;

        ColorPair RP = new ColorPair(PaintColor, ObjColor);

        if (RepaintTable.ContainsKey(RP))
        {
            CurrentColor = RepaintTable[RP];
        }
        else { /*что-то пошло не так*/ }
    }
}