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game.c
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game.c
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/*
井字棋
*/
#include <stdio.h>
//棋盘
char Board[3][3] = {
{' ', ' ', ' '},
{' ', ' ', ' '},
{' ', ' ', ' '},
};
//打印棋盘状态
void PrintBoard()
{
// printf("\033[2J"); //清屏
// printf("\n\n");
printf(" 0─1─2 \n");
printf(" ┌─┬─┬─┬─┐\n");
for (int i = 0; i < 3; i++)
{
printf("%d├─", i);
for (int j = 0; j < 3; j++)
printf("%c─", Board[i][j]);
printf("┤\n");
}
printf(" └─┴─┴─┴─┘\n");
}
//返回0表示胜负未分,'O'表示O赢了,'X'表示X赢了
int model[8][3][2] = {
{{0, 0}, {0, 1}, {0, 2}},
{{1, 0}, {1, 1}, {1, 2}},
{{2, 0}, {2, 1}, {2, 2}}, //横
{{0, 0}, {1, 0}, {2, 0}},
{{0, 1}, {1, 1}, {2, 1}},
{{0, 2}, {1, 2}, {2, 2}}, //竖
{{0, 0}, {1, 1}, {2, 2}},
{{0, 2}, {1, 1}, {2, 0}}, //对角
};
int existWinner(char player)
{
for (int n = 0; n < 8; n++)
{
if (Board[model[n][0][0]][model[n][0][1]] == player &&
Board[model[n][1][0]][model[n][1][1]] == player &&
Board[model[n][2][0]][model[n][2][1]] == player)
return 1;
}
return 0;
}
int flag = 1, turn = 0;
//重置棋盘
void initBoard()
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
Board[i][j] = ' ';
turn = 0;
}
int isSum()
{
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (Board[i][j] == ' ')
return 0;
return 1;
}
int AI(int *x, int *y, char c)
{
if (isSum())
return 0;
int max = -1;
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (Board[i][j] == ' ')
{
Board[i][j] = c;
if (existWinner(c))
{
*x = i;
*y = j;
max = 1;
}
int xx, yy;
int score = -AI(&xx, &yy, c == 'O' ? 'X' : 'O');
if (max < score)
{
max = score;
*x = i;
*y = j;
}
Board[i][j] = ' ';
}
return max;
}
int main(void)
{
while (1)
{
//打印棋盘
PrintBoard();
int x, y;
INPUT: //用户输入并落子
if (flag)
scanf("%d%d", &x, &y);
else
printf("%d\n", AI(&x, &y, 'X'));
// printf("%d, %d", x, y);
if (Board[x][y] == ' ')
{
Board[x][y] = flag ? 'O' : 'X';
flag = !flag;
}
else
{
printf("非法的落子位置,请重新输入\n");
goto INPUT;
}
turn++;
if (existWinner('O'))
printf("O方获胜!\n");
else if (existWinner('X'))
printf("X方获胜!\n");
else if (turn >= 9)
printf("平局!\n");
else
continue; //如果棋局没有结束则继续
initBoard(); //如果棋局结束了则重置棋盘
}
}