refactoring: ask_lab_walls

src/main/c/labyrinth.c

@@ -117,16 +117,16 @@ short lab_can_move(Field_State** field, unsigned short x, unsigned short y, Dire
 
 void ask_lab_walls(Field_State** field, unsigned short len_x, unsigned short len_y){
     unsigned short x, y;
-    short a;
+    short wall_input_continue;
 
     init_field(field, len_x, len_y);
 
     do {
-        a = get_wall_input(&x, &y, len_x, len_y);
-        if (a == 0){
+        wall_input_continue = get_wall_input(&x, &y, len_x, len_y);
+        if (wall_input_continue == 0){
             set_wall(field, x, y);
             show_solution(field, len_x, len_y);
         }
-    } while (a != 1);
+    } while (wall_input_continue != 1);
 }