message: Add method to set current food level in FoodProduction Structure
diff: @@ -28,6 +28,7 @@ public:
  }
  int foodLevel() const { return mFoodLevel; }
  + void foodLevel(int level) { mFoodLevel = std::clamp(level, 0, foodCapacity()); }
  protected:
  virtual int calculateProduction() = 0;
  