World Generator V1.0

public void Generate()
        {
            Random rnd = new Random();
            int lastHeight = rnd.Next(1, _height);
            for (int k = 0; k < _depth; k++)
            {
                int currentHeight = lastHeight + rnd.Next(-1, 2);
                currentHeight = Math.Min(_height, Math.Max(1, currentHeight));
                for (int j = 0; j < currentHeight; j++)
                {
                    cubes[0, j, k] = new BlockGrass(new Vector3(0, 10 * j, 10 * k));
                }
                lastHeight = currentHeight;
            }
            lastHeight = GetHeight(0, 0);
            for (int i = 1; i < _width; i++)
            {
                int currentHeight = lastHeight + rnd.Next(-1, 2);
                currentHeight = Math.Min(_height, Math.Max(1, currentHeight));
                for (int j = 0; j < currentHeight; j++)
                {
                    cubes[i, j, 0] = new BlockGrass(new Vector3(10 * i, 10 * j, 0));
                }
                lastHeight = currentHeight;
            }
            for (int i = 1; i < _width; i++)
            {
                for (int k = 1; k < _depth; k++)
                {
                    int currentHeight = (GetHeight(i - 1, k) + GetHeight(i, k - 1)) / 2 + rnd.Next(-1, 2);
                    currentHeight = Math.Min(_height, Math.Max(1, currentHeight));
                    for (int j = 0; j < currentHeight; j++)
                    {
                        if (j < currentHeight - 1)
                        {
                            cubes[i, j, k] = new BlockGround(new Vector3(10 * i, 10 * j, 10 * k));
                        }
                        else
                        {
                            cubes[i, j, k] = new BlockGrass(new Vector3(10 * i, 10 * j, 10 * k));
                        }
                    }
                    lastHeight = currentHeight;
                }
            }
            AddAllCubes();
        }