1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55

//top edge
            if (normal)
                for (int i = y; i > 0; i--)
                    if (_map[x, i] == 0)
                        if ((i - 1) > minDist) { mnt.Corners[0] = new Point(x, i - 1 + minDist); break; }
                        else { normal = false; mnt.Height = -1; }

            //top-right edge
            if (normal)
                for (int i = 0; ((x + i) < MAP_SIZE) & ((y - i) > 0); i++)
                    if (_map[x + i, y - i] == 0)
                        if (Math.Sqrt(2) * (MAP_SIZE - i) > minDist) { mnt.Corners[1] = new Point(x + i - 1 - minDist, y - i + 1 + minDist); break; }
                        else { normal = false; mnt.Height = -1; }

            //right edge
            if (normal)
                for (int i = x; i < MAP_SIZE; i++)
                    if (_map[i, y] == 0)
                        if ((MAP_SIZE - i - 1) > minDist) { mnt.Corners[2] = new Point(i - 1 - minDist, y); break; }
                        else { normal = false; mnt.Height = -1; }

            //bottom-right edge
            if (normal)
                for (int i = 0; ((x + i) < MAP_SIZE) & ((y + i) < MAP_SIZE); i++)
                    if (_map[x + i, y + i] == 0)
                        if (Math.Sqrt(2) * (MAP_SIZE - i) > minDist) { mnt.Corners[3] = new Point(x + i - 1 - minDist, y + i - 1 - minDist); break; }
                        else { normal = false; mnt.Height = -1; }

            //bottom edge
            if (normal)
                for (int i = y; i > 0; i++)
                    if (_map[x, i] == 0)
                        if ((i - 1) > minDist) { mnt.Corners[4] = new Point(x, i - 1 - minDist); break; }
                        else { normal = false; mnt.Height = -1; }

            //bottom-left edge
            if (normal)
                for (int i = 0; ((x - i) < MAP_SIZE) & ((y + i) > 0); i++)
                    if (_map[x - i, y + i] == 0)
                        if (Math.Sqrt(2) * (MAP_SIZE - i) > minDist) { mnt.Corners[5] = new Point(x - i + 1 + minDist, y + i - 1 - minDist); break; }
                        else { normal = false; mnt.Height = -1; }

            //left edge
            if (normal)
                for (int i = x; i > 0; i--)
                    if (_map[i, y] == 0)
                        if ((i + 1) > minDist) { mnt.Corners[6] = new Point(i + 1 + minDist, y); break; }
                        else { normal = false; mnt.Height = -1; }

            //top-left edge
            if (normal)
                for (int i = 0; ((x - i) > 0) & ((y - i) > 0); i++)
                    if (_map[x - i, y - i] == 0)
                        if (Math.Sqrt(2) * (MAP_SIZE - i) > minDist) { mnt.Corners[7] = new Point(x - i + 1 + minDist, y - i + 1 + minDist); break; }
                        else { normal = false; mnt.Height = -1; }