extension/src/Simulation.hpp


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#pragma once

#include <godot_cpp/core/class_db.hpp>
#include <vector>
#include <chrono>
#include "openvic2/Date.hpp"

namespace OpenVic2 {
   class Simulation : public godot::Object {
      GDCLASS(Simulation, godot::Object)
      std::vector<uint64_t> exampleProvinces;

      enum class Speed { Speed1 = 4000, Speed2 = 3000, Speed3 = 2000, Speed4 = 1000, Speed5 = 100, Speed6 = 1 };

      std::chrono::time_point<std::chrono::high_resolution_clock> lastPolledTime;
      bool isPaused;
      Speed currentSpeed;
      Date inGameDate;

      //BEGIN BOILERPLATE
      inline static Simulation* _simulation = nullptr;

   protected:
      static void _bind_methods() {
         godot::ClassDB::bind_method(godot::D_METHOD("conductSimulationStep"), &Simulation::conductSimulationStep);
         godot::ClassDB::bind_method(godot::D_METHOD("queryProvinceSize"), &Simulation::queryProvinceSize);
      }

   public:
      inline static Simulation* get_singleton() { return _simulation; }

      inline Simulation() : inGameDate(1836, 1, 1) {
         ERR_FAIL_COND(_simulation != nullptr);
         _simulation = this;
         this->lastPolledTime = std::chrono::high_resolution_clock::now();
         this->isPaused = false;
         this->currentSpeed = Speed::Speed1;
         exampleProvinces.resize(10, 1);
      }
      inline ~Simulation() {
         ERR_FAIL_COND(_simulation != this);
         _simulation = nullptr;
      }
      //END BOILERPLATE

      void togglePauseState();
      bool getPauseState();
      void increaseSimulationSpeed();
      void decreaseSimulationSpeed();
      void setSimulationSpeed(Speed speed);
      int getSimulationSpeed();

      inline void conductSimulationStep() {
         for (uint64_t x = 0; x < exampleProvinces.size(); x++) {
            exampleProvinces[x] += (x + 1);
         }
      }

      inline uint64_t queryProvinceSize(uint64_t provinceID) {
         if (provinceID >= exampleProvinces.size()) {
            return 0;
         }
         return exampleProvinces[provinceID];
      }

      void conditionallyAdvanceSimulation();
   };
}