refactoring: add_guessed_letter --> erratene_buchstaben_hinzufuegen

src/main/c/hangman.c

@@ -14,7 +14,7 @@ void nameAusgeben();
 void levelauswahl();
 void hauptSpiel(int level);
 void zeichne_galgen(int versuche);
-void add_guessed_letter(char* guessed_letters, char guessed_letter);
+void erratenen_buchstaben_hinzufuegen(char* guessed_letters, char guessed_letter);
 char eingabe_buchstabe();
 void lade_secret_word(char* secret_word, int level, char* path);
 void show_letters(char secret_word[100], char guessed_letters[100]);
@@ -184,7 +184,7 @@ void hauptSpiel(int level){
 		guessed_letter = eingabe_buchstabe();
 		result = letter_in_secret_word(guessed_letter, secret_word);
 		if (result == 0){
-			add_guessed_letter(guessed_letters, guessed_letter);
+			erratenen_buchstaben_hinzufuegen(guessed_letters, guessed_letter);
 		}
 		else {
 			versuche++;
@@ -270,7 +270,7 @@ void zeichne_galgen(int versuche) {
     }
 }
 
-void add_guessed_letter(char* guessed_letters, char guessed_letter){
+void erratenen_buchstaben_hinzufuegen(char* guessed_letters, char guessed_letter){
 	for (int i = 0; i < strlen(guessed_letters); i++){
 		if (guessed_letters[i] == guessed_letter){
 			return;