Write an interactive C program that plays a game of hangman. Store the word to b

Question

Write an interactive C program that plays a game of hangman. Store the word to be guessed in successive elements of an array of individual characters called word. The player must guess the letters belonging to word. The program should terminate when either all letters have been guessed correctly (the player wins) or a specified a specified number of incorrect guesses have been made (the computer wins). Create a database of 20 words which the computer chooses at random to play with. Hint: Use another array, guessed to the symbol. Each time a letter in word is guessed, replace the corresponding in guessed with the letter.

Explanation / Answer

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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#define MAX_GUESSES 26
#define MAX_INCORRECT_GUESSES 9
#define MAX_WORD_LENGTH 15
#define MAX_WORDS 20

int read_words(char[],char[][MAX_WORD_LENGTH]);
void get_word(char[][MAX_WORD_LENGTH],char[],int);
int get_random(int);
void print_guessed_letters(char[],int);
int good_guess(char[],char);
void printword(char[]);
char getletter();
void checkLetter(char[],int*,char,int * );
int main()
{
FILE *output;
int i,count,used=0,guesses=0,good,tot=0,alreadyused;
char filename[20];
char WordArray[MAX_WORDS][MAX_WORD_LENGTH];
char Word[MAX_WORD_LENGTH];
char word_so_far[MAX_WORD_LENGTH];
char lettersUsed[26];
char guess;
srand(time(0));
printf("This is the game of Hangman ");
printf("I will choose a word, and you will enter characters to ");
printf("try to guess the characters in my word without making ");
printf("more than nine incorrect guesses. If you guess all the letter ");
printf("in my word before making nine incorrect guesses, you win! ");

     printf("What file would you like to use for data input: ");
     scanf("%s",&filename);
     printf(" ");

     printf("We will be using the file %s for our word choices today. ");

     count=read_words(filename,WordArray);
     if(count==-1)
                  return 1;

     get_word(WordArray,Word,count);

     printf("Your file had %d words ", count);
//printf("Your *hangman secret word* is: %s ",Word);
   
          used=0;
          guesses=0;
          count=0;
          tot=0;
          for(i=0;i<26;i++)
              lettersUsed[i]=' ';
          for(i=0;i<strlen(Word);i++)
              word_so_far[i]='*';
          word_so_far[i]='';
while ( getchar() != ' ');     
printf(" Your word: ");
printword(word_so_far);
while(guesses<MAX_INCORRECT_GUESSES&&count<strlen(Word)&&tot<MAX_GUESSES)
    {guess=getletter();
     checkLetter(lettersUsed,&used,guess,&alreadyused);
     if(alreadyused==0)
     { guesses++;
       good=good_guess(Word,guess);
       if(good==1)
          {for(i=0;i<strlen(Word);i++)
              if(toupper(Word[i])==toupper(guess))
                   {word_so_far[i]=toupper(guess);
                    count++;
                    }
          
          }
      
      }
     
     print_guessed_letters(lettersUsed,used);
     printf(" Here is your word so far: ");  
     printword(word_so_far);  
     }

if(guesses>=MAX_INCORRECT_GUESSES||tot>=MAX_GUESSES)
printf("Sorry! You lost ");
else
   printf("Congratulations! You win! ");
printf("The word was: ");
printword(Word);  

getchar();
system("pause");
}

void checkLetter(char lets[],int* used,char c,int * alreadyused)
{int i;

*alreadyused=0;
for(i=0;i<*used;i++)
    if(c==lets[i])
       {*alreadyused=1;
       printf("You've already guessed that letter ");
       i=*used+10;
       }
if(*alreadyused==0)        
      {lets[*used]=c;
      *used=*used+1;
      }
}

char getletter()
{char letter;
printf("Enter a new letter: ");
scanf("%c",&letter);
while( (fgetc( stdin )) != ' ' );
return letter;
}
void printword(char w[])
{int i;
for(i=0;i<strlen(w);i++)
     printf("%c",w[i]);
printf(" ");
}
int good_guess(char w[],char let)
{int i;
for(i=0;i<strlen(w);i++)
    if(toupper(let)==toupper(w[i]))
        {printf("Good guess! My word contains your letter! ");
        return 1;
        }
printf("Sorry! That letter is not in the chosen word! ");
return 0;
}
void print_guessed_letters(char letters[],int n)
{int i;
printf("The letters you have guessed so far are: ");
for(i=0;i<n;i++)
    {putchar(letters[i]);
    printf(" ");
    }
printf(" ");
}
void get_word(char a[][MAX_WORD_LENGTH],char w[],int count)       
{                                                                 
int n,i;                                                         
n=get_random(count);
for(i=0;i<MAX_WORD_LENGTH;i++)
     w[i]=a[n][i];
return;
}   

int get_random(int num_words)                            
{                                                       

return(rand() % num_words);
}

int read_words(char filename[],char a[][MAX_WORD_LENGTH])
{                                                       
int i,j,count=0,k;
FILE *input;
input= fopen(filename,"r");
if(input==NULL)
{
    printf("Error opening Input File! ");
    getchar();
    return -1;
}
i=0;
while(i<MAX_WORDS)
{
    j=0;
    k=0;
     while(j<MAX_WORD_LENGTH)
     {
       a[i][j]=fgetc(input);
       k=1;
       if(a[i][j]==EOF)
         k=0;
       if(a[i][j]==' '||k==0||a[i][j]==' ')
       {
         a[i][j]='';
         if(j!=0)
           count++;
         j=MAX_WORDS;           
       }
       j++;
       if(k==0)
         i=MAX_WORDS;
     }              
     i++;
}      
fclose(input);
return count;
}

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