// file hangman.h - wdg 2009

#include <stdio.h>
#include <string.h>  // for strlen function
#include <stdlib.h>  // for rand and srand functions
#include <time.h>    // for time function

char * getRandomSecret();
char getGuess(char secret[], int found[]);
int isInGuess(char try, char secret[], int found[]);
void updateProgress(char try, char secret[], int found[]);
int haveAllLetters(int found[], int length);
void play(char secret[]);

void loadDictionary();   // supplied below
void freeDictionary();   // supplied below

const int MAX_WORD_LENGTH = 20;
const int MAX_WORDS = 1000;
const int MAX_MISSES = 8;
const char BLANK = '_';

const char DICTIONARY[] = "list.txt";  // filename of list of words
char **dictionary = 0; // an array of strings
int numberOfWords;

// this loads words from file into array dictionary
// it should be called at the start of the main function if user needs it
void loadDictionary( ) 
{
   FILE *infile;
   infile = fopen( DICTIONARY, "r");
   if( !infile ) {
       printf("Unable to open file\n");
       return;
   }
   fscanf( infile, "%d", &numberOfWords); 
   
   dictionary = (char **) malloc( numberOfWords * sizeof(char*));  
   if( dictionary == NULL) {  
      printf("Out of memory");
      return;  
   }
   int count=0;  
   while( count<numberOfWords  ) {
      dictionary[count] = (char *)malloc(MAX_WORD_LENGTH * sizeof(char));
      if( dictionary[count]==NULL) {
         printf("Ran out of memory");
         break;
      }
      if( !fscanf( infile, "%s", dictionary[count]) ) {
         printf("File ended prematurely\n");
         numberOfWords = count;
      }
      else 
        count++;
  }
  printf("Loaded %d words into the dictionary\n", numberOfWords);
  fclose(infile);
}

// the follow releases the memory used to store the dictionary
// should be called at the end of the main routine
void freeDictionary() 
{
  if( !dictionary )
    return;
  int i;
  for(i=0; i<numberOfWords; i++)
    free( dictionary[i]);
  free(dictionary);
  dictionary=NULL;
}