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

#include <time.h>

struct Player
{
    char name[256];
    int sum;
};

void PrintPlayerSum(struct Player *p)
{
     printf("Player %s has sum %d\n", p->name, p->sum);
}

void wait ( int seconds )
{
    clock_t endwait;
    endwait = clock () + seconds * CLOCKS_PER_SEC ;
    while (clock() < endwait) {}
}

int main()
{
    struct Player *player = malloc(sizeof(*player));
    strcpy( player->name, "John");
    player->sum = 0;

    while(1)
    {
        PrintPlayerSum(player);

        printf("Do you want another number? (y/n, q for quit) ");
        char ch;

        scanf("%s", &ch);

        if( ch == 'q' )
            break;

        if( ch == 'y' )
        {
            srand(time(NULL));
            
            int rnd = rand() % 13 + 1;
            player->sum += rnd;

            printf("Player got %d\n", rnd);
        }

        if( ch == 'n' || player->sum > 21)
        {
            if( player->sum > 21 )
            {
                printf("\n*** You lost the game, please try again... ***");
            }
            else
            {
                printf("\nCPU's turn\n");

                int cpusum = 0;

                while( 1 )
                {
                       if( cpusum > 21 )
                       {
                           printf("\n*** CPU lost the game with the score %d, you win! ***", cpusum);
                           break;
                       }

                       if( cpusum > player->sum )
                       {
                           printf("\n*** CPU won the game with the score %d, please try again ***", cpusum);
                           break;
                       }
                       
                       wait(1);
                       srand(time(NULL));
                       int rnd = rand() % 13 + 1;
                       cpusum += rnd;

                       printf("CPU got %d, sum is %d\n", rnd, cpusum);
                }
            }

            break;
        }

        printf("\n\n");
    }
    
    /* Cleanup ******************/
    free(player);
    /****************************/
        
    printf("\n\n\n");
    system("PAUSE");
    return 0;
}