gistfile1.txt

/*     2A2B -- a game of dumb luck
*
*      Authors: Nathaniel Chen
*      Copyright Nathaniel Chen 2013
*
*/

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

struct details {
  // target number set by opponent
  // my current guess
  // my current result (a's and b's)
  }

//  initialize data structures
//    until a valid target is entered (4 unique numbers 0-9)
//      user picks target for computer
//      check that the entered target is valid
    
//    computer generates a valid target for user

//  do until someone wins 
//    until a valid guess is entered
//      get a guess from user
//      check that the entered numbers are unique and 0-9

//    from target and guess generate a's and b's
//    if 4a's then 
//      user wins
//    else 
//      computer generates new guess from previous (keeping any a's)
//      if 4a then computer wins
//  end do until


/* one struct for comp, one for user */
struct keep {
  int num[4];
	int guess[4];
	char a_or_b[4]; //a==correct number and position, b=correct number, blank=initial condition
};
struct keep *user;
s)truct keep *comp;
int turn;

//can be called to generate a target or a guess
//returns -1 if error, 0 otherwise
//p is an array of 4 integers set only when 0 is returned
int getValidNumberFromUser (int (*p)) {
	int i;
	int k;
	char c[4];
	int num[4];
	int j;


	gets(c);
	for (k=0; k<4; k++) {
		num[k] = (int)c[k];
		num[k] -= '0';
		if (num[k] < 0 || num[k] > 9) {
			printf("error! not an int\n");
			return -1;
		}

		/* all numbers must be different */
			for (j=0; j<k; j++) {
				if (num[k] == num[j]) {
					printf("error! numbers must all be different\n");
					return -1;
				}
			}

	}

        //everythings okay so copy the result to caller
	for (k=0; k<4; k++) {p[k] = num[k];}

return 0;
}


// first time called a_or_b should be all blank
int computer_guess (void) {
	int i;
	int k;

	/* next turns -- randomly guess what isn't A .. could be b or blank */
	/* randomly guess anything that isn't A right now */
		for (i=0; i<4; i++) {
			if (comp->check[i] == 'A')
				continue;
			else {
				comp->guess[i] = (rand() % 10);
				/* all numbers must be different */
				if (i > 0) {
					for (k=0;k<i;k++) {
						while (comp->guess[i] == comp->guess[k]) {
							comp->guess[i] = (rand() % 10);
						}
					}
				}
			}
		}

	turn++;  /// take this out of here probably
}

int user_guess (void) {
	int i;
	int k;

	printf("Take a guess:\n");
	get_numbers(user->guess);

return 0;
}

// if checkGuess(UserDetails.guess, UserDetails.target, 
//how about bool checkGuess( int guess[], int target[], int aOrb[] )
bool isPosUnique (int pos, int array[])  // is the number at pos anyywhere else in the array (of 4) 

int check (struct keep *checker, struct keep *checkee) {
	int i;
	int k;

	/* check for 2A2B */
	for (i=0; i<4; i++) {
		if (checker->guess[i] == checkee->num[i])
			checker->check[i] = 'A';
//              else if (isNumInArray(guess[
		else {
			for (k=0; k<4; k++) {
				if (checker->guess[i] == checkee->num[k]) {
					checker->check[i] = 'B';
					break;
				}
				else {
					checker->check[i] = '0';
				}
			}
		}
	}
return 0; // how about returning count of a's
}

int main (void) {
	int i;
	int k;
	int counta;
	int countb;

	turn = 0;
	user = calloc(1, sizeof(struct keep));
	comp = calloc(1, sizeof(struct keep));

	/* FIXME initialize check vals */
	comp->check[0] = '0';
	comp->check[1] = '0';
	comp->check[2] = '0';
	comp->check[3] = '0';
	user->check[0] = '0';
	user->check[1] = '0';
	user->check[2] = '0';
	user->check[3] = '0';
	comp->guess[0] = 0;
	comp->guess[1] = 0;
	comp->guess[2] = 0;
	comp->guess[3] = 0;
	user->guess[0] = 0;
	user->guess[1] = 0;
	user->guess[2] = 0;
	user->guess[3] = 0;

	printf("\n**************************************\n");
	printf("\n**   WELCOME TO 2A2B -- GOOD LUCK   **\n");
	printf("\n**************************************\n");
	printf("\nPick four numbers from 0-9 (e.g. 1234)\n");
	if (get_numbers(user->num) < 0)
		return 0;

	printf("Your numbers: ");
	for (i=0; i<4; i++) {
		printf("%d", user->num[i]);
		if (i==3)
			printf("\n");
	}

	/* set random computer numbers */
//	printf("Computer's numbers: ");
	/* seed */
	srand(time(NULL));
	for (i=0; i<4; i++) {
		/* modulo 10 will always give us 0-9 */
		comp->num[i] = (rand() % 10);

		/* all numbers must be different */
		// FIXME
		if (i > 0) {
			for (k=0;k<i;k++) {
				while (comp->num[i] == comp->num[k]) {
					comp->num[i] = (rand() % 10);
				}
			}
		}

//		printf("%d", comp->num[i]);
	}
//	printf("\n");

	/* FIXME this needs to be a separate function called in a while */
	while ((!((comp->check[0] == 'A') && (comp->check[1] == 'A') && (comp->check[2] == 'A') && (comp->check[3] == 'A'))) &&
		(!((user->check[0] == 'A') && (user->check[1] == 'A') && (user->check[2] == 'A') && (user->check[3] == 'A')))) {

		printf("\nTake a guess:");
		if (get_numbers(user->guess) < 0) {
			printf("error! failed to get your guess");
			return 0;
		}

		printf("\nUser's Guess: ");
		for (i=0; i<4; i++)
			printf("%d", user->guess[i]);

		check(user, comp);
		printf("\nResult: ");
		counta = countb = 0;
		for (i=0; i<4; i++) {
			if (user->check[i] == 'A')
				counta++;
			else if (user->check[i] == 'B')
				countb++;
		}
		printf("%dA%dB\n", counta, countb);

		computer_guess();

		printf("\nYour numbers: ");
		for (i=0; i<4; i++) {
			printf("%d", user->num[i]);
		if (i==3)
			printf("\n");
		}

		printf("Computer's Guess: ");
		for (i=0; i<4; i++)
			printf("%d", comp->guess[i]);

		check(comp, user);
		printf("\nResult: ");
		counta = countb = 0;
		for (i=0; i<4; i++) {
			if (comp->check[i] == 'A')
				counta++;
			else if (comp->check[i] == 'B')
				countb++;
		}
		printf("%dA%dB\n", counta, countb);

	}

	if ((comp->check[0] == 'A') && (comp->check[1] == 'A') && (comp->check[2] == 'A') && (comp->check[3] == 'A'))
		printf("\nYou were bested by a machine in %d moves!\n", turn);
	if ((user->check[0] == 'A') && (user->check[1] == 'A') && (user->check[2] == 'A') && (user->check[3] == 'A'))
		printf("\nYou vanquished the computer in %d moves\n", turn); 
return 0;
}