[Suggest] Add `Vector3Int.ManhattanDistance(Vector3Int a, Vector3Int b)`.

Unity Engine
1

I want methods to calculate Manhattan distance with Vector3Ints.

There is a method to calculete Euclidean distance (Vector3.Distance(Vector3 a, Vector3 b), but sometime we need the method to calculate Manhattan distance in tile based game logic.

I think many of us creted the method to calculate Manhattan distance.

I suggest to create static methods in Vector3Int

// in Vector3Int
public static int ManhattanDistance(Vector3Int a, Vector3Int b){
    checked {
        return Mathf.Abs(a.x - b.x) + Mathf.Abs(a.y - b.y) + Mathf.Abs(a.z - b.z);
    }
}

and with Vector2Int

// in Vector2Int
public static int ManhattanDistance(Vector2Int a, Vector2Int b){
    checked {
        return Mathf.Abs(a.x - b.x) + Mathf.Abs(a.y - b.y);
    }
}

update : added checked

6 Likes
2

Thanks men is wonderfull code.

Greetings from Colombia

3

You can add your own static extensions of Vector3Int to do this as well for better ease of use, though they definitely should implement it internally.

// in Vector2Int
public static int ManhattanDistance(this Vector2Int a, Vector2Int b){
    checked {
        return Mathf.Abs(a.x - b.x) + Mathf.Abs(a.y - b.y);
    }
}

And then your code simply becomes position1.ManhattanDistance(position2);

3 Likes