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Spa8nky

3D array. How do I find the outermost indices?

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If I create a 3D array of variable width, height and depth:
        public void CreateNewLevel(int width, int height, int depth)
        {
            array3D = new int[width, height, depth];

            for (int x = 0; x < width; ++x)
            {
                for (int y = 0; y < height; ++y)
                {
                    for (int z = 0; z < depth; ++z)
                    {
                        
                    }
                }
            }
        }




How can I find the outermost indices? Would it be something along the line of checking if x - 1 < 0 || y - 1 < 0 || z - 1 < 0 x + 1 == width || y + 1 == height || z + 1 == depth? EDIT: Is this correct?
        public void CreateNewLevel(int width, int height, int depth)
        {
            map3D = new int[width, height, depth];

            for (int x = 0; x < width; ++x)
            {
                for (int y = 0; y < height; ++y)
                {
                    for (int z = 0; z < depth; ++z)
                    {
                        bool a = x == 0 || y == 0 || z == 0;
                        bool b = x + 1 == width || y + 1 == height || z + 1 == depth;
                        map3D[x, y, z] = a || b ? 1 : 0;
                    }
                }
            }
        }

or can anyone see any cases where it wouldn't work?

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The extremities of the level are in the slices where x, y, or z is 0 or (size - 1). Is that what you want? The corners are in the intersections of these slices (logical AND).

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