GridManager.ValidMoves C# (CSharp) Method

    private IEnumerable<Point> ValidMoves( int x, int y )
    {
        // Return each valid square we can move to.

        foreach (Point movePoint in MOVEMENTS)
        {
            int newX = x + movePoint.x;
            int newY = y + movePoint.y;

            if ( ValidCoordinates( newX, newY ) && SquareOpen( newX, newY ))
            {
                yield return new Point( newX, newY );
            }
        }
    }