FTilemap.getTile C# (CSharp) Method

    public FSprite getTile(int givenX, int givenY)
    {
        if (!_skipZero) {
            int node = (givenX % _tilesWide) + givenY * _tilesWide;

            if (node < _tilesWide * _tilesHigh) {
                return _childNodes[node] as FSprite;
            } else {
                Debug.Log ("FTilemap: index [" + node + "] outside of range: " + (_tilesWide * _tilesHigh));
                return null;
            }
        } else {
            return getTileAt(givenX * _tileWidth, givenY * _tileHeight);
        }
    }