refactoring: labyrinth, final piece of cake

src/main/c/labyrinth.c

@@ -161,28 +161,28 @@ short calculate_lab_way(Field_State** field, unsigned short len_x, unsigned shor
 
 void labyrinth(){
     unsigned short len_x, len_y;
-    Field_State **f;
+    Field_State **field;
 
     ask_lab_dimensions(&len_x, &len_y);
 
-    f = malloc(len_x * sizeof *f);
+    field = malloc(len_x * sizeof *field);
     for (int c_index = 0; c_index < len_x; c_index++){
-        f[c_index] = malloc(len_y * sizeof f[c_index]);
+        field[c_index] = malloc(len_y * sizeof field[c_index]);
     }
 
-    ask_lab_walls(f, len_x, len_y);
+    ask_lab_walls(field, len_x, len_y);
 
-    if (calculate_lab_way(f, len_x, len_y, 0, 0) == 1){
+    if (calculate_lab_way(field, len_x, len_y, 0, 0) == 1){
         printf("Keine Loesung moeglich!\n");
     }
 
-    show_solution(f, len_x, len_y);
+    show_solution(field, len_x, len_y);
 
     for (int c_index = 0; c_index < len_x; c_index++)
     {
-        free(f[c_index]);
+        free(field[c_index]);
     }
-    free(f);
+    free(field);
 
 }