extension/src/openvic2/GameAdvancementHook.hpp


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#pragma once

#include <chrono>
#include <functional>

namespace OpenVic2 {
   //Value of different game speeds are the minimum number of miliseconds before the simulation advances
   enum class GameSpeed {
      Speed1 = 4000,
      Speed2 = 3000,
      Speed3 = 2000,
      Speed4 = 1000,
      Speed5 = 100,
      Speed6 = 1
   };

   //Conditionally advances game with provided behaviour
   //Class governs game speed and pause state
   class GameAdvancementHook {
      public:
      using AdvancementFunction = std::function<void()>;

      private:
      std::chrono::time_point<std::chrono::high_resolution_clock> lastPolledTime;
      //A function pointer that advances the simulation, intended to be a capturing lambda or something similar. May need to be reworked later
      AdvancementFunction triggerFunction;

      public:
      bool isPaused;
      GameSpeed currentSpeed;

      GameAdvancementHook(AdvancementFunction function = nullptr, bool startPaused = false, GameSpeed startingSpeed = GameSpeed::Speed1);

      void increaseSimulationSpeed();
      void decreaseSimulationSpeed();
      GameAdvancementHook operator++(int);
      GameAdvancementHook operator--(int);
      void conditionallyAdvanceGame();
   };
}