move.c

#include "move.h"
int sanitizer(int *x, int *y)
{
    char buf[1024];
    if (!fgets(buf, sizeof buf, stdin)) 
    {
        return 1;
    }
    if (!strchr(buf, '\n'))
    {
        int ch;
        while ((ch = getchar()) != '\n' && ch != EOF)
            ;
    }
    char *p = buf;
    char *end;
    while (isspace((unsigned char)*p))
        p++;
    if (*p == '\0' || *p == '\n')
        return 3;
    long a = strtol(p, &end, 10);
    if (p == end)return 3;
    *x = (int)a;
    p = end;
    long b = strtol(p, &end, 10);
    if (p == end)return 3;
    *y = (int)b;
    return 0;
}
int pin(char z, int flag)
{
    int x, y;
    printf("%sPlayer %c, enter row and column :",flag == -2 ? "" : "                ", z);
    fflush(stdout);
    if (sanitizer(&x, &y) != 0)
    {
        printf("\033[1A\033[2K\033[33m[invalid input]\033[0m ");
        fflush(stdout);
        return -2;
    }

    if (x < 0 || x >= SIZE || y < 0 || y >= SIZE)
    {
        printf("\033[1A\033[2K\033[33m[out of bounds]\033[0m ");
        fflush(stdout);
        return -2;
    }
    if (z == 'O' && (y == 0 || y == SIZE - 1))
    {
        printf("\033[1A\033[2K\033[33m[invalid move]\033[0m  ");
        fflush(stdout);
        return -2;
    }
    if (z == 'X' && (x == 0 || x == SIZE - 1))
    {
        printf("\033[1A\033[2K\033[33m[invalid move]\033[0m  ");
        fflush(stdout);
        return -2;
    }
    if (arr[x][y] != '.')
    {
        printf("\033[1A\033[2K\033[33m[occupied]\033[0m      ");
        fflush(stdout);
        return -2;
    }
    arr[x][y] = z;
    printf("\033[s");
    printf("\033[r\033[H");
    printf("\033[%d;%dH", 2 * x + 2, 4 + y * 4);
    if (z == 'O')printf("\033[31mO\033[0m");
    else printf("\033[34mX\033[0m");
    fflush(stdout);
    printf("\033[u");
    printf("\033[%dA", flag == 0 ? 0 : flag == -2 ? 1 : 2);
    fflush(stdout);
    return x * SIZE + y;
}