//
//  main.c
//  3x3 OOXX
//
//  Created by eddie on 2014/11/26.
//  Copyright (c) 2014年 eddie. All rights reserved.
//

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, const char * argv[]) {
    int x,y,com;
    char ox[9]={"*********"};
    void OOXX(char*);
    void checkWinner(char*);
    char *tmp;
    int index;
    srand((unsigned)time(NULL));
    while (1) {

        com = (rand() % 9);

        OOXX(ox); //印出井字

        scanf("%d,%d",&x,&y); //玩家
        x= (x==0)?  x+y :  x * 3 + y ;

        while ( ox[x] != '*' ){ //玩家重複
            printf("重複\n");
            OOXX(ox);  //印出井字
            scanf("%d,%d",&x,&y); //再次輸入
            x= (x==0)?  x+y :  x * 3 + y ;
        }
        ox[x] = 'X';


        tmp = strchr(ox, '*');  //最後一步判斷

        index = (int)(tmp-ox);

        if (index < 0){
            OOXX(ox);
            checkWinner(ox);
            return 0;
        }


        while ( ox[com] == 'X' || ox[com] == 'O') //電腦
            com = (rand() % 9);
        ox[com] ='O';

        checkWinner(ox);
    }
    return 0;
}

void OOXX(char * ox){
    int i;
    for (i=0; i<=8; i++) { //輸出井字
        printf("%c",ox[i]);
        if (i % 3 ==2 )
            printf("\n");
    }
}
void checkWinner(char * ox){
    int check;
    for (check=0; check<=2; check++) {  //判斷

        if (ox[ check*3 % 9 ] == 'X' && ox[ (check*3+1) % 9 ] == 'X' && ox[ (check*3+2) % 9 ] == 'X' )  //橫列
            printf("You Win\n");
        else if (ox[ check*3 % 9 ] == 'O' && ox[ (check*3+1) % 9 ] == 'O' && ox[ (check*3+2) % 9 ] == 'O' )
            printf("You Lose\n");

        if (ox[ check ] == 'X' && ox[ check + 3 ] == 'X' && ox [ check+6  ] == 'X' ) //直條
            printf("You Win\n");
        else if (ox[ check ] == 'O' && ox[ check + 3 ] == 'O' && ox [ check+6  ] == 'O' )
            printf("You Lose\n");

    }

    if ( ox[0] =='X' && ox[4] == 'X' && ox[8] == 'X' ) //兩斜邊
        printf("You Win\n");
    if  ( ox[0] =='O' && ox[4] == 'O' && ox[8] == 'O' )
        printf("You Lose\n");
    if ( ox[2] =='X' && ox[4] == 'X' && ox[6] == 'X' )
        printf("You Win\n");
    if  ( ox[2] =='O' && ox[4] == 'O' && ox[6] == 'O' )
        printf("You Lose\n");
}