Simple question

Unity Engine
1

What is the math behind Vector2.MoveTowards()?
Thanks in Advance!

2 
/ Moves a point /current/ towards /target/.
        public static Vector2 MoveTowards(Vector2 current, Vector2 target, float maxDistanceDelta)
        {
            // avoid vector ops because current scripting backends are terrible at inlining
            float toVector_x = target.x - current.x;
            float toVector_y = target.y - current.y;

            float sqDist = toVector_x * toVector_x + toVector_y * toVector_y;

            if (sqDist == 0 || (maxDistanceDelta >= 0 && sqDist <= maxDistanceDelta * maxDistanceDelta))
                return target;

            float dist = (float)Math.Sqrt(sqDist);

            return new Vector2(current.x + toVector_x / dist * maxDistanceDelta,
                current.y + toVector_y / dist * maxDistanceDelta);
        }
2 Likes
3

Thanks!