Vector2 관련 연산 (C#)

public struct Vector2
    {
        public double x;
        public double y;
 
        //벡터 그기
        public double Size
        {
            get
            {
                return Math.Sqrt(x * x) + (y * y);
            }
        }
 
        //정규화 벡터
        public Vector2 Normalized
        {
            get
            {
                return new Vector2(x / Size, y / Size);
            }
        }
 
        public Vector2(double xValue, double yValue)
        {
            x = xValue;
            y = yValue;
        }
    }
 
    //두 지점간의 거리
    private double Distance(Vector2 a, Vector2 b)
    {
        double diffA = a.x - b.x;
        double diffB = a.y - b.y;
 
        return Math.Sqrt((diffA * diffA) + (diffB * diffB));
    }