#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
 
char *getLine(FILE *fp, char line[], size_t limit);
void getRandomLine(const char *filename, char line[], size_t limit);
 
int main()
{
  char line[1024];
  int i;
 
  srand((unsigned)time(NULL));
 
  /* Get 10 random lines from the file */
  for (i = 0; i < 10; ++i) {
    getRandomLine("test.txt", line, sizeof line);
    printf("%s\n", line);
  }
}
 
char *getLine(FILE *fp, char line[], size_t limit)
{
  char *result = fgets(line, limit, fp);
 
  if (result != NULL) {
    /* Strip the newline character */
    char *nl = strchr(line, '\n');
 
    if (nl != NULL)
      *nl = '\0';
  }
 
  return result;
}
 
void getRandomLine(const char *filename, char line[], size_t limit)
{
  FILE *fp = fopen(filename, "r");
 
  if (fp != NULL) {
    /* Get the first line as the first survivor */
    if (getLine(fp, line, limit) != NULL) {
      char *temp = (char*)malloc(limit);
 
      /* Survivor method starting with the first 2 lines */
      while (getLine(fp, temp, limit) != NULL) {
        if (rand() % 2 == 0)
          strcpy(line, temp);
      }
 
      /* Clean up resources */
      free(temp);
      fclose(fp);
    }
  }
}

int initialize_array(char phrase[], char puzzle[], char clue[]){
	FILE* phraseFile; /*input file*/
	char temp[100]; /*temporary array*/
	char line[100]; /*line from which word and clue are chosen*/
	size_t i=0; /*counter for loop*/
	int len; /*length of line from file*/
	int count;
	int x=0;
 
 
	phraseFile = fopen("clues.txt", "r"); /*opens file*/
 
	if (!phraseFile) {
		fprintf(stderr, "Oops - file not opened !\n"); /*if there is error in opening file program is exited*/
		exit(1);
		}
 
		count=0;
		while(fgets(temp, 100, phraseFile)!=NULL){
			++count;
		}
 
	x=rand()%count+1;
 
	len=strlen(temp);
	if(temp[len-1]=='\n')
		temp[len-1]=0; /*places the null terminating character after word*/
 
		/*separates clues from word*/
	strcpy(clue,strtok(temp, "%"));
	char tmp[WORD_LENGTH];
	strcpy(tmp,strtok(NULL,"%"));
	strcpy(phrase, tmp + 1);
	strcpy(puzzle,phrase);
 
 
		/*strcpy(puzzle,phrase);*/
 
		while(i<strlen(puzzle)){
			if(isalpha(puzzle[i])){
				puzzle[i] = '*'; /*hides word*/
				}
				++i;
			}
	fclose(phraseFile);	/*closes file*/	
	return i;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
 
int main()
{
  FILE *fp = fopen("test.txt", "r");
  char line[1024];
  int count = 0;
  int r;
 
  srand((unsigned)time(NULL));
 
  while (fgets(line, sizeof line, fp) != NULL)
    ++count;
 
  r = rand() % count;
 
  // Start over
  rewind(fp);
 
  // Only read r lines
  while (--r >= 0)
    fgets(line, sizeof line, fp);
 
  puts(line);
 
  return 0;
}

	size_t i=0; /*counter for loop*/
	int len; /*length of line from file*/