Function play

CPP/Problems/maze_game.c:174–293

}

void play(char maze[l][w], int snk[2], int ply[2], int dst[2])
{
    char ch;
    int win = 0, lose = 0;
    head mem;
    mem.cnt = 0;
    mem.start = mem.end = NULL;
    record(&mem, ply, snk, '^');
    while (!win && !lose)
    {
        system("cls");
        printf("RULES OF GAME\n");
        printf("-------------\n");
        printf("Press \'w\' to move up\n");
        printf("Press \'a\' to move left\n");
        printf("Press \'s\' to move down\n");
        printf("Press \'d\' to move right\n");
        printf("Press \'u\' to undo\n");
        printf("Press \'q\' to quit\n\n");
        print_maze(maze);
        printf("\n");
        fflush(stdin);
        ch = _getch();
        switch (ch)
        {
        case 'w':
        {
            if (maze[ply[0] - 1][ply[1]] == ' ' || maze[ply[0] - 1][ply[1]] == 'X')
            {
                if (maze[ply[0] - 1][ply[1]] == 'X')
                    win = 1;
                maze[ply[0]][ply[1]] = ' ';
                maze[ply[0] - 1][ply[1]] = '^';
                ply[0]--;
                record(&mem, ply, snk, '^');
            }
            break;
        }
        case 'a':
        {
            if (maze[ply[0]][ply[1] - 1] == ' ' || maze[ply[0]][ply[1] - 1] == 'X')
            {
                if (maze[ply[0]][ply[1] - 1] == 'X')
                    win = 1;
                maze[ply[0]][ply[1]] = ' ';
                maze[ply[0]][ply[1] - 1] = '<';
                ply[1]--;
                record(&mem, ply, snk, '<');
            }
            break;
        }
        case 's':
        {
            if (maze[ply[0] + 1][ply[1]] == ' ' || maze[ply[0] + 1][ply[1]] == 'X')
            {
                if (maze[ply[0] + 1][ply[1]] == 'X')
                    win = 1;
                maze[ply[0]][ply[1]] = ' ';