Implement input.c, game.c and main.c -all unit test passed

Startcode/game.c

@@ -13,5 +13,89 @@
 // Creates the word salad by placing words randomly and filling empty spaces
 int createWordSalad(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN], unsigned int searchFieldLen, const char words[][MAX_WORD_LEN], unsigned int wordCount)
 {
+   if (salad == NULL || words == NULL || searchFieldLen == 0){
+      return 0;
+   }
+   //1. Spielfeld mit Nullen (Leerzeichen/leeren Zellen) Vorinitialisieren
+   for(unsigned int i = 0; i< searchFieldLen; i++){
+      for(unsigned int j = 0; j < searchFieldLen; j++)
+      {
+         salad[i][j] = '\0';
+      }
+   }
 
+   //Zufallszahlengenerator initialisation
+   srand((unsigned int)time(NULL));
+
+   unsigned int sucessfullyPlaced = 0;
+
+   //2. Jedes Wort einzeln im Gitter Plazieren
+   for(unsigned int w = 0; w < wordCount; w++)
+   {
+      int len = (int)strlen(words[w]);
+      if((unsigned int)len > searchFieldLen){
+         //wort ist zu lang für das Suchfeld
+         continue;
+      }
+
+      int placed = 0;
+      int attempts = 0;
+
+      //MAximum Versuche, um eine passende Position zu finden, um ENdlosshleifen zu vermeiden
+      while(!placed && attempts < 100){
+         attempts++;
+         int direction = rand() %2; // 0 = horizontal, 1 = vertical
+         int row = 0;
+         int col = 0;
+
+         if(direction == 0)  // horizontal
+         {
+            row = rand() % searchFieldLen;
+            col = rand() % (searchFieldLen - len + 1);
+         }
+         else // vertical
+         {
+            row = rand() % (searchFieldLen - len + 1);
+            col = rand() % searchFieldLen;
+         }
+
+         // KOllisionsprüfung
+
+         int collision = 0;
+         for(int i = 0; i < len; i++)
+         {
+            int r = row + (direction == 1? i : 0);
+            int c = col + (direction == 0 ? i : 0);
+
+
+            if(salad[r][c] != '\0' && salad[r][c] != words[w][i]){
+               collision = 1;
+               break;
+            }
+         }
+
+         //wenn keine kollision vorliegt, Wort ins Gitter schreiben
+
+         if(!collision){
+            for(int i = 0; i < len; i++){
+               int r = row + (direction == 1 ? i : 0);
+               int c = col + (direction == 0 ? i : 0);
+               salad[r][c] = words[w][i];
+            }
+            sucessfullyPlaced++;
+            placed = 1;
+         }
+      }
+   }
+
+   // Alle restlichen (leeren) Felder mit zufäalligen Großbuchstaben ('A' - 'Z') auffullen
+   for(unsigned int i = 0; i < searchFieldLen; i++){
+      for(unsigned int j = 0; j < searchFieldLen; j++)
+      {
+         if(salad[i][j] == '\0'){
+            salad[i][j] = (char)('A' + (rand() % 26));
+         }
+      }
+   }
+   return (int)sucessfullyPlaced;
 }

Startcode/input.c

@@ -4,9 +4,52 @@
 
 // TODO:
 // eine Funktion implementieren, die ein einzelnes Wort aus einer Textdatei (words.txt) einliest und als C-String zurückgibt.
+// HIlfsfunktion: LIest das nächste Wort(Tocken) aus der Datei und gibt es als C-String züruck
+char* readNextWord(FILE *file, char *lineBuffer, unsigned int maxLineLen, int *isNewLineNeeded){
+    const char *delimiters = " ,;\t\r\n";
+    char *token = NULL;
+
+    //Falls wir schon in einer Zeile sind, Versuche das nächste Word daraus zu holen
+    if(!(*isNewLineNeeded)){
+        token = strtok(NULL, delimiters);
+    }
+
+    while (token == NULL)
+    {
+        if(fgets(lineBuffer, maxLineLen, file) == NULL)
+        {
+            // Dateiend (EOF) erreicht
+            return NULL;
+        }
+        token = strtok(lineBuffer, delimiters);
+        *isNewLineNeeded = 0;
+    }
+    return token;
+}
 
 // Read words from file and store in 'words' array
 int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
 {
+    if(file == NULL || words == NULL || maxWordCount == 0){
+        return 0;
+    }
+    char lineBuffer[MAX_LINE_LEN];
+    int isNewLineNeeded = 1;
+    unsigned int count = 0;
+    char *word = NULL;
 
+    while(count < maxWordCount && (word = readNextWord(file, lineBuffer, MAX_LINE_LEN, &isNewLineNeeded)) != NULL)
+    {
+        //Sicher kopieren mit strncpy und Nulltermination garantieren
+        strncpy(words[count], word, MAX_WORD_LEN - 1);
+        words[count][MAX_WORD_LEN - 1] = '\0';
+
+        //changing all leter to caplogs
+
+        for(unsigned int i =  0; words[count][i] != '\0'; i++){
+            words[count][i] = (char)toupper((unsigned char)words[count][i]);
+        }
+        count++;
+    }
+    return (int)count;
 }