Poorly Written C#

    public class Square
    {
        public int x;
        public int y;
        public int height = -1;

        public bool IsAdjacent(Square s)
        {
            if((s.x - x == 1 || s.x - x == -1 || s.x - x == 0) &&
                (s.y - y == 1 || s.y - y == -1 || s.y - y == 0))
                return true;
            else
                return false;
        }
    }


    public class Action
    {
        public string type;
        public int index;
        public string move;
        public string build;
        public double score;
        public Square moveFrom;
        public Square moveTo; // pushed square
        public Square buildAt; // pushed to

        public override string ToString()
        {
            return type + " " + index + " " + move + " " + build;
        }

        public void Evaluate()
        {