public float getAngle(Vector2D v2)
{
return (float)Math.Acos((double)((this * v2) / (this.module() * v2.module())));
}
public Vector2D(Vector2D vec)
{
this.X = vec.X;
this.Y = vec.Y;
}
public float distance(Vector2D v2)
{
return (new Vector2D(this - v2)).module();
}