Vector2.cs

using System;

namespace MathLibrary
{
    public class Vector2
    {
        public Vector2(float X, float Y)
        {
            x = X;
            y = Y;
        }

        public Vector2() {}

        public float x;
        public float y;

        public Vector2 Increase(float s)
        {
            Vector2 scaled = new Vector2
            {
                x = x * s,
                y = y * s
            };

            return scaled;
        }

        public Vector2 Reduce(float s)
        {
            Vector2 scaled = new Vector2
            {
                x = x / s,
                y = y / s
            };

            return scaled;
        }

        public Vector2 Normalized()
        {
            Vector2 normalized = new Vector2
            {
                x = this.x / Length(),
                y = this.y / Length()
            };

            return normalized;
        }

        public Vector2 AddVector(ref Vector2 vector)
        {
            Vector2 vector2 = new Vector2
            {
                x = x + vector.x,
                y = y + vector.y
            };

            return vector2;
        }

        public Vector2 SubtractVector(ref Vector2 vector)
        {
            return new Vector2(x - vector.x, y - vector.y);
        }

        public  float Length() 
        {
            float lenght = (float)Math.Sqrt((x * x) + (y * y));

            return (float)Math.Round(lenght, 2);
        }

        public float LengthSqr()
        {
            float lenght = (x * x) + (y * y);

            return (float)Math.Round(lenght, 2);
        }

        public float Dotproduct(ref Vector2 a, ref Vector2 b)
        {
            return (a.x * b.x) + (a.y * b.y);
        }
      
    }
}