public static class test
    {

        static int[,] data = new int[1000, 1000];
        static float[,] avg = new float[1000, 1000];
        static void run()
        {
            for (int x = 0; x < 1000; x++)
            {
                for (int y = 0; y < 1000; y++)
                {
                    avgWorth(x, y, 100, 1000, ref avg);
                }
            }
        }

        static float avgWorth(int x, int y, int r, int wall_size, ref float[,] worth)
        {
            var result = 0f;

            var m = 0f;
            var i = 0;
            var j = 0;
            for (i = -r; i < r; i++)
            {
                for (j = -r; j < r; j++)
                {
                    var p = i * i + j * j;
                    if (p < r * r)
                    {
                        if (p < 0)
                            p = -p;

                        var _x = x + i;
                        var _y = y + j;
                        var _w = 0f;

                        if (_x >= 0 && _x < wall_size && _y >= 0 && _y < wall_size)
                        {
                            _w = getValue(worth[_x, _y], p, r);
                            m++;
                        }
                        result += _w;
                    }
                }
            }
            return result / (m * 5);
        }

        static float getValue(float worth, float dist, float max_dist)
        {
            var d = (dist / max_dist) + 0.7f;
            var r = ((d * d) * 0.35f);
            if (r > 0.9f)
                r = 0.9f;

            var w = (worth * 2) * (1f - r);
            if (w > worth)
                w = worth;
            return w;
        }


    }