public MainLoop.point select_point()
{
List <MainLoop.point> vp = new List <MainLoop.point>();
int i;
MainLoop.point point = new MainLoop.point();
vp = count_point(2);
vp.Sort((a, b) =>
{
if (a.v > b.v)
{
return(-1);
}
return(1);
});
if (vp[0].v >= 100000)
{
point.x = vp[0].x;
point.y = vp[0].y;
return(point);
}
for (i = 1; i < vp.Count; i++)
{
if (vp[i].v != vp[0].v)
{
break;
}
}
point = vp[(int)Math.Floor(UnityEngine.Random.Range(0, i - 1) + 0.5)];
return(point);
}
// score1: score of own pieces { 0, 1, 2, 3, 4 } in a row
// score2: score of opponent's pieces { 0, 1, 2, 3, 4 } in a row
public List <MainLoop.point> count_point(int k) // rank of each point on current board
{
List <MainLoop.point> vp = new List <MainLoop.point>();
MainLoop.point tmp = new MainLoop.point();
int i, j, x, y, cnt1, cnt2;
int[,] rank = new int[Board.count, Board.count];
int[,] mv = { { 1, 1, 0, -1 }, { 0, 1, 1, 1 } }; // move in 4 directions
for (x = 0; x < 15; x++)
{
for (y = 0; y < 15; y++)
{
for (i = 0; i < 4; i++)
{
cnt1 = 0;
cnt2 = 0;
if (x + 4 * mv[0, i] < 0 || x + 4 * mv[0, i] > 14 || y + 4 * mv[1, i] < 0 || y + 4 * mv[1, i] > 14)
{
continue;
}
for (j = 0; j < 5; j++)
{
if (BoardModel.map[x + j * mv[0, i], y + j * mv[1, i]] == k)
{
cnt1++;
}
else if (BoardModel.map[x + j * mv[0, i], y + j * mv[1, i]] != k && BoardModel.map[x + j * mv[0, i], y + j * mv[1, i]] != 0)
{
cnt2++; // other color
}
}
if (cnt1 == 0 && cnt2 != 0)
{
for (j = 0; j < 5; j++)
{
rank[x + j * mv[0, i], y + j * mv[1, i]] += score2[cnt2];
}
}
else if (cnt1 != 0 && cnt2 == 0)
{
for (j = 0; j < 5; j++)
{
rank[x + j * mv[0, i], y + j * mv[1, i]] += score1[cnt1];
}
}
else if (cnt1 == 0 && cnt2 == 0)
{
for (j = 0; j < 5; j++)
{
rank[x + j * mv[0, i], y + j * mv[1, i]] += score1[0];
}
}
}
}
}
for (i = 0; i < 15; i++)
{
for (j = 0; j < 15; j++)
{
if (BoardModel.map[i, j] != 0)
{
continue;
}
tmp.x = i;
tmp.y = j;
tmp.v = rank[i, j];
vp.Add(tmp);
}
}
return(vp);
}
