Stuck on Letter Guessing Game program

[Ben0729]

Hey everyone! I am new to C and was given the Letter Guessing Game assignment. I have been stuck on some errors I don't know really how to resolve in time, and I've been reading the forums and similar issues with the same assignment all different code, and saw that it helped me understand, I need help resolving the errors and understanding what went wrong so I can learn from it.LtrGame.c
Hey everyone! I am new to C and was given the Letter Guessing Game assignment. I have been stuck on this

[Ben0729]

Here is the code if you don't feel like downloading the c file

insert

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#define MAXGUESSES 5
//function prototypes with a comment for each one describing what the function does.


//Provides user with the instructions on how to play the game
void GameRules(void);


//It runs one entire game. It checks either five incorrect guesses or one correct guess.
//This also returns a 0 if the game ended with the player not guessing the correct letter, if not it returns a 1.
int SingleGame(char file_letter);


//Prompts a player to make a guess and returns said guess
//It is located inside the single game function from above
char RetrieveGuess();


//Takes two arguments, both the guess from the player and the solution from the file
//Lets the player know if the guess comes alphabetically before or after the answer
//It returns a 1 if the guess matches, and returns a 0 if it does not match
//This is located inside the OneGame() funciton from above
int GuessedIt(char answer, char input_letter);


//Copy and paste from assignment


int main()
{
	
	
	//declare additional variables
	
	int PlayGames = 4,
		i = 0;
	
	char file_letter,
		answer,
		input_letter;
	
	int GuessedIt(char answer, char input_letter);
	//display instructions
	GameRules();
		//open file
		FILE * inPtr;


	inPtr = fopen("lettersin.txt", "r");


	//get number of games to play
	printf("How many games do you wish to play?\n");
	scanf(" %d", &PlayGames);
	for (i = 0; i<PlayGames; i++)
	{
		
		//get a letter from file
		fscanf(inPtr, " %c", &file_letter);
		
		//Play one game
		SingleGame(file_letter);
		printf("The letter is %c\n", file_letter);
		//check for win or lose
		GuessedIt(answer, input_letter);
	}
	//close file
	fclose(inPtr);
	return 0;
}
//Function definitions
//copy and paste prototypes and comments from assignment. Then remove the ; from each


//Provides user with the instructions on how to play the game
void GameRules(void)
{
	printf("Letter Guessing Game\n");
	printf("Input how many times you want to play the game\n");
	printf("You have 5 chances to guess each of the letters\n");
	printf("Start\n");
}






int SingleGame(char file_letter)
{
	int numGuesses = 0;
	while (numGuesses < MAXGUESSES)
	{
		
		//RetrieveGuess function call
		RetrieveGuess();
		//GuessedIt function call
		GuessedIt(answer, input_letter);
		//update counter for number of guesses used
		printf("number of guesses is %d\n", numGuesses);
		numGuesses = numGuesses + 1;
	
	}
	
//Prompts a player to make a guess and returns said guess
//It is located inside the single game function from above
	char RetrieveGuess()
{	
	char input_letter;
	printf("Enter a letter: ");
	scanf(" %c", &input_letter);
	return input_letter;


}




//Takes two arguments, both the guess from the player and the solution from the file
//Lets the player know if the guess comes alphabetically before or after the answer
//It returns a 1 if the guess matches, and returns a 0 if it does not match
//This is located inside the OneGame() funciton from above
int GuessedIt(char answer, char input_letter)
{
	char value;
	if (answer < input_letter)value = 0;
	else value = 1;
	printf("letter comes before");
	return 0;
}




}

[swgh]

>GuessedIt(answer, input_letter);

How does the SingleGame function know what answer is? You have declared it within
function main not as an argument to the function.

[Malcolm McLean]

Hey everyone! I am new to C and was given the Letter Guessing Game assignment. I have been stuck on some errors I don't know really how to resolve in time, and I've been reading the forums and similar issues with the same assignment all different code, and saw that it helped me understand, I need help resolving the errors and understanding what went wrong so I can learn from it.LtrGame.c
Hey everyone! I am new to C and was given the Letter Guessing Game assignment. I have been stuck on this

Assignments like these have the weakness that the best way of writing that particular program doesn't really scale up. Also, few real program conduct a dialogue with the user via stdin, if you do write such a program for real, then you need to spend a lot of time validating input, which for this program would be 90% of the code.

The letters are read from a file. Is it known at compile time? Is it known that it contains only letters? In reality, you can read the entire file into memory as a first step and user will get bored after a tiny number of games, but is that allowed or should the input be unbounded?
Then he gets five guesses at a letter. The test is so trivial you don't really need a function for it. However make the game a bit more complicated, and it becomes sensible to set up a "GAME" structure containing game state (the letter, maybe the guesses, the number of guesses he has left). Then you apply the rules, without doing any IO. IO if done by a separate driving function.

So the logic goes

int main(void)
{
   GAME *game;

   do
   {
       game = setupgame( ); /* possibly pass parameters */
       printf("Rules are this and that");
      
       /* game tells us when it has reached completion */
       while(!gameover(game))
       {
           do
          {
              char input[1024];
              /* the game tells us what prompt to give the user */
              char *str = game_prompt(game);
              printf("%s", str);
              fgets(input, 1024, stdin);
              /* we test that user has entered somethign acceptable,
                  and re-prompt until the game accepts the input*/
           } while(!game_inputacceptable(game, input));
           
           /* now we actually enter the input and oput the game
               inot a new sate */
           game_enter_input(game, input);l
          
       }
       printf("Game over, result was %s\", game_finalresult|(game));

        destroy_game(game);
   } while(userstillwantstoplay());
}

The point is that the input /output logic is pretty much separated out from the details of the game. They are two different problems.

Now we can replace "guess the letter" with a wide variety of possible games.