List <move> elagage()
{
move[] around = new move[8];
around[0].x = 0;
around[0].y = 1;
around[1].x = 0;
around[1].y = -1;
around[2].x = 1;
around[2].y = 0;
around[3].x = -1;
around[3].y = 0;
around[4].x = -1;
around[4].y = -1;
around[5].x = -1;
around[5].y = 1;
around[6].x = 1;
around[6].y = -1;
around[7].x = 1;
around[7].y = 1;
List <move> ret = new List <move>();
int i, j;
i = j = 0;
while (i < _height)
{
j = 0;
while (j < _width)
{
if (_board[i, j] != 0)
{
int k = -1;
while (++k <= 7)
{
if (i + around[k].y >= 0 && j + around[k].x >= 0 &&
i + around[k].y < _height && j + around[k].x < _width &&
_board[i + around[k].y, j + around[k].x] == 0)
{
ret.Add(CreateMove(i + around[k].y, j + around[k].x));
}
}
}
++j;
}
++i;
}
List <move> r = new List <move>();
foreach (move m in ret)
{
if (_board[m.y, m.x] == 0)
{
r.Add(m);
}
}
return(r);
}