#pragma once

#include <td/game/World.h>

namespace td {
namespace sim {

using GameHistory = std::vector<td::protocol::LockStep>;

class RealTimeSimulation {
  private:
	std::uint64_t m_StepTime;
	game::World& m_World;
	GameHistory m_History;
	std::uint64_t m_CurrentTime;
	std::uint64_t m_LastTime;
	std::size_t m_CurrentStep;

  public:
	/**
	 * \param a_StepTime in ms
	 */
	RealTimeSimulation(game::World& a_World, GameHistory&& a_History, std::uint64_t a_StepTime);

	/**
	 * \return the progress [0-1] between two steps
	 */
	float Update();

  private:
	void Step();
};

}  // namespace sim
}  // namespace td