发布时间：2019-07-29 18:01:41
求大佬将最好讲一下思路是怎么实现人机下棋的
六，代码：
#include <stdio.h>
#include<string>
#include<windows.h>
#define N 15
#define samekey same(row + dx[u] * i, col + dy[u] * i, key)
#define sumkadd for (i = 1; samekey; i++)sumk++;
#define sumksub for (i = -1; samekey; i--)sumk++;
#define off if(!inboard(row + dx[u] * i, col + dy[u] * i) || p[row + dx[u] * i][col + dy[u] * i] != 0)continue;
#define temp0 if (tempp == 0){p[i][j] = 0;continue;}
int p[N + 2][N + 2]; //0空1黑2白 1●2○ -1▲-2△
int s = 0, ais = 1, s0;//s是轮到谁下,s=1,2，s=1是ai下，s=2是玩家，s=s0是黑方下，否则是白方下
bool is_end = false;
int dx[8] = { 1, 1, 0, -1, -1, -1, 0, 1 }; //flat技术
int dy[8] = { 0, 1, 1, 1, 0, -1, -1, -1 };//（dx,dy）是8个方向向量
int manu[2][300], manukey=0;
int out(int i, int j)
{
if (p[i][j] == 1)return printf("●");
if (p[i][j] == 2)return printf("○");
if (p[i][j] == -1)return printf("▲");
if (p[i][j] == -2)return printf("△");
if (i == N)
{
if (j == 1)return printf("┏");
if (j == N)return printf("┓");
return printf("┯");
}
if (i == 1)
{
if (j == 1)return printf("┗");
if (j == N)return printf("┛");
return printf("┷");
}
if (j == 1)return printf("┠");
if (j == N)return printf("┨");
return printf("┼");
}
void DrawBoard()//画棋盘
{
system("cls");
int row = 0, col = 0, keyr = 0, keyc = 0;
char alpha = 'A';
printf("\n\n\n ");
for (col = 1; col <= N; col++)printf("%c ", alpha++);
for (row = N; row >= 1; row--)
{
printf("\n %2d", row);
for (col = 1; col <= N; col++)
{
out(row, col);
if (p[row][col] < 0)keyr = row, keyc = col;
}
printf("%d", row);
}
alpha = 'A';
printf("\n ");
for (col = 1; col <= N; col++)printf("%c ", alpha++);
printf("\n\n");
if (s0 == ais)printf(" AI执黑，玩家执白\n");
else printf(" AI执白，玩家执黑\n");
alpha = 'A';
if (keyr)printf(" 最后落子位置：%c%d\n", alpha + keyc - 1, keyr);
}
void init()
{
system("color f0");
printf("输入1或者2进行选择\n1，AI执黑先行\n2，玩家执黑先行\n");
scanf_s("%d", &s);
if (s != 1 && s != 2)return init();
s0 = s;
int i, j;
for (i = 0; i <= N + 1; i++)for (j = 0; j <= N + 1; j++)p[i][j] = 0;//以空格包围棋盘
DrawBoard();
for (j = 0; j < 300; j++)manu[0][j] = manu[1][j] = 0;
}
bool inboard(int row, int col)//是否在棋盘内
{
if (row <1 || row > N)return false;
return col >= 1 && col <= N;
}
int same(int row, int col, int key)//判断2个棋子是否同色
{
if (!inboard(row, col))return false;
return (p[row][col] == key || p[row][col] + key == 0);
}
int num(int row, int col, int u)//坐标（row,col），方向向量u
{
int i = row + dx[u], j = col + dy[u], sum = 0, ref = p[row][col];
if (ref == 0)return 0;
while (same(i, j, ref))sum++, i += dx[u], j += dy[u];
return sum;
}
int live4(int row, int col)//活4的数量
{
int key = p[row][col], sum = 0, i, u;
for (u = 0; u < 4; u++)//4个方向，每个方向最多1个
{
int sumk = 1;
sumkadd off sumksub off
if (sumk == 4)sum++;
}
return sum;
}
int chong4(int row, int col)//冲4的数量
{
int key = p[row][col], sum = 0, i, u;
for (u = 0; u < 8; u++)//8个方向，每个方向最多1个
{
int sumk = 0;
bool flag = true;
for (i = 1; samekey || flag; i++)//成五点的方向
{
if (!samekey)
{
if (flag&&p[row + dx[u] * i][col + dy[u] * i])sumk -= 10;
flag = false;
}
sumk++;
}
if (!inboard(row + dx[u] * --i, col + dy[u] * i))continue;
sumksub
if (sumk == 4)sum++;
}
return sum - live4(row, col) * 2;
}
int live3(int row, int col)//活3的数量
{
int key = p[row][col], sum = 0, i, u;
for (u = 0; u < 4; u++)//三连的活三
{
int sumk = 1;
sumkadd off i++; off;
sumksub off i++; off;//据网友提示这里应该是i--，写代码过了很久了，懒得确认真相了
if (sumk == 3)sum++;
}
for (u = 0; u < 8; u++)//8个方向，每个方向最多1个非三连的活三
{
int sumk = 0;
bool flag = true;
for (i = 1; samekey || flag; i++)//成活四点的方向
{
if (!samekey)
{
if (flag&&p[row + dx[u] * i][col + dy[u] * i])sumk -= 10;
flag = false;
}
sumk++;
}off
if (p[row + dx[u] * --i][col + dy[u] * i] == 0)continue;
sumkadd off
if (sumk == 3)sum++;
}
return sum;
}
bool overline(int row, int col)//长连禁手
{
bool flag = false;
int u;
for (u = 0; u < 4; u++)if (num(row, col, u) + num(row, col, u + 4) > 4)flag = true;
return flag;
}
bool ban(int row, int col)//判断落子后是否成禁手
{
if (same(row, col, 2))return false;//白方无禁手
bool flag = live3(row, col) > 1 || overline(row, col) || live4(row, col) + chong4(row, col) > 1;
return flag;
}
bool end_(int row, int col)//(row,col)处落子之后是否游戏结束
{
int u;
for (u = 0; u < 4; u++)if (num(row, col, u) + num(row, col, u + 4) >= 4)is_end = true;
if (is_end)return true;
is_end = ban(row, col);
return is_end;
}
void go(int row, int col)//落下一子
{
if (s == s0)p[row][col] = -1; //标出最新下的棋
else p[row][col] = -2;
for (int i = 0; i <= N; i++)for (int j = 0; j <= N; j++) //取消上一个最新棋的标识
{
if (i == row && j == col)continue;
if (p[i][j] < 0)p[i][j] *= -1;
}
DrawBoard();
if (ban(row, col))
{
if (s0 == 1)printf("玩家胜");
else printf("AI胜");
Sleep(10000);
}
if (end_(row, col))
{
if (s == ais)printf("AI胜");
else printf("玩家胜");
Sleep(10000);
}
manu[0][manukey] = row, manu[1][manukey++] = col;
}
bool ok(int row, int col)//能否落子
{
return inboard(row, col) && (p[row][col] == 0);
}
int point(int row, int col)//非负分值
{
if (ban(row, col))return 0;//禁手0分
if (end_(row, col))
{
is_end = false;
return 10000;
}
int ret = live4(row, col) * 1000 + (chong4(row, col) + live3(row, col)) * 100, u;
for (u = 0; u < 8; u++)if (p[row + dx[u]][col + dy[u]])ret++;//无效点0分
return ret;
}
int AI3(int p2)
{
int i, j;
int keyp = -100000, tempp;
for (i = 1; i <= N; i++)for (j = 1; j <= N; j++)
{
if (!ok(i, j))continue;
p[i][j] = s0;
tempp = point(i, j);
temp0
if (tempp == 10000)
{
p[i][j] = 0;
return 10000;
}
p[i][j] = 0;
if (tempp-p2*2 > keyp)keyp = tempp-p2*2;//第三层取极大
}
return keyp;
}
int AI2()
{
int i, j;
int keyp = 100000, tempp;
for (i = 1; i <= N; i++)for (j = 1; j <= N; j++)
{
if (!ok(i, j))continue;
p[i][j] = 3 - s0;
tempp = point(i, j);
temp0
if (tempp == 10000)
{
p[i][j] = 0;
return -10000;
}
tempp = AI3(tempp);
p[i][j] = 0;
if (tempp < keyp)keyp = tempp;//第二层取极小
}
return keyp;
}
void AI()
{
DrawBoard();
printf(" 轮到AI下，请稍候： ");
if (p[8][8] == 0)return go(8, 8);
int i, j;
int keyp = -100000, keyi, keyj, tempp;
for (i = 1; i <= N; i++)
{
for (j = 1; j <= N; j++)
{
if (!ok(i, j))continue;
p[i][j] = s0;
tempp = point(i, j);
temp0//高效剪枝，避开了禁手点和无效点
if (tempp == 10000)return go(i, j);
tempp = AI2();
p[i][j] = 0;
if (tempp > keyp)keyp = tempp, keyi = i, keyj = j;//第一层取极大
}
}
return go(keyi, keyj);
}
void out_manual()
{
char alpha = 'A';
int i;
printf("\n 黑方落子位置: ");
for (i = 0; i < manukey;i+=2)printf(" %c%d", alpha + manu[1][i] - 1, manu[0][i]);
printf("\n 白方落子位置: ");
for (i = 1; i < manukey; i += 2)printf(" %c%d", alpha + manu[1][i] - 1, manu[0][i]);
Sleep(5000);
}
void player()
{
DrawBoard();
printf(" 轮到玩家下，请输入坐标(输入=0查看棋谱)： ");
char c = '\n';
int row = 0, col = 0;
while (c<'0')scanf("%c%d", &c, &row);
if (c == '=')
{
out_manual();
return player();
}
if (c < 'a')col = c - 'A' + 1;
else col = c - 'a' + 1;
if (!ok(row, col))
{
printf("此处不能下");
Sleep(1000);
return player();
}
go(row, col);
}
void main()
{
init();
while (!is_end)
{
if (s == ais)AI();
else player();
s = 3 - s;//换下棋方
}
return;
}