Random word from file #5

hangman.c

@@ -4,7 +4,8 @@
 #include <string.h>
 #include <ctype.h> //tolower
 #include <getopt.h>
-
+#include <time.h>
+#include "prng.h"
 
 int main(int argc, char **argv) {
   
@@ -55,7 +56,8 @@ int main(int argc, char **argv) {
             break;
         }
     }
-
+    InitializePRNG(time(NULL)); /* Initialize random number generator */
+    
     if (startscr) {
         showStartScreen(gs);
     }
@@ -112,12 +114,22 @@ void initGuessWord(game_state *gs, char *filename) {
     int i;
     mvprintw(1, 1, "Please enter your word: ");
     if (strlen(gs->guessWord) == 0) { /* Word can be set by arguments */
-        curs_set(1);
-        getstr(gs->guessWord);
-        curs_set(0);
+        if (strlen(filename) == 0) {
+            /* Manual input */
+            curs_set(1);
+            getstr(gs->guessWord);
+            curs_set(0);
+        } else {
+            /* Random line from file */
+            readRandomLine(filename, gs->guessWord);
+        }
+            
     }
+
+    /* Make String all lowercase */
     toLowerCase(gs->guessWord);
     gs->wordLength = strlen(gs->guessWord);
+
     for (i = 0; i < gs->wordLength; i++) {
         if (gs->guessWord[i] == ' ') { //Check for spaces if it's a sentence
             gs->currentWord[i] = ' ';
@@ -230,7 +242,8 @@ int checkWin(game_state *gs) {
 void printGameStats(game_state *gs) {
     clear();
     if (gs->moves >= gs->allowedMoves) {
-        mvprintw(gs->centery, gs->centerx - 5, "Game lost.");
+        mvprintw(gs->centery, gs->centerx - 10, "Game lost. Solution:");
+        mvprintw(gs->centery + 1, gs->centerx - (gs->wordLength / 2), gs->guessWord);
     } else {
         char message[100];
         sprintf(message, "Game won! Total guesses: %i", gs->guesses);
@@ -251,3 +264,20 @@ int centerDiff(int coordinate, char *str) {
     int len = strlen(str);
     return coordinate - (len / 2); /* Integer division */
 }
+
+void readRandomLine(char *file, char *result) {
+    long totalLength = 0, rand = 0;
+    FILE *fp = fopen(file, "r");
+    char c;
+
+    while ((c = fgetc(fp)) != EOF) {
+        if (c == '\n') ++totalLength;
+    }
+    
+    rand = getrandom(0, totalLength);
+    fseek(fp, rand, SEEK_SET);
+
+    fgets(result, MAXWORDLENGTH, fp);
+
+    fclose(fp);
+}