105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*********************************************************************
|
|
* \file SHFramerateController.h
|
|
* \author Ryan Wang Nian Jing
|
|
* \brief Declaration for the framerate controller
|
|
* Handles changing of scenes and manages loop (timestep, etc.)
|
|
*
|
|
* \copyright Copyright (c) 2022 DigiPen Institute of Technology. Reproduction
|
|
or disclosure of this file or its contents without the prior written
|
|
consent of DigiPen Institute of Technology is prohibited.
|
|
*********************************************************************/
|
|
|
|
#ifndef SH_FRAMERATECONTROLLER_H
|
|
#define SH_FRAMERATECONTROLLER_H
|
|
#pragma once
|
|
|
|
#include <chrono>
|
|
#include "SH_API.h"
|
|
|
|
namespace SHADE
|
|
{
|
|
class SH_API SHFrameRateController
|
|
{
|
|
private:
|
|
//Varying delta time. The actual time it took for every frame
|
|
static double rawDeltaTime;
|
|
static std::chrono::steady_clock::time_point prevFrameTime;
|
|
|
|
|
|
public:
|
|
//Gets the raw delta time
|
|
static inline double GetRawDeltaTime() noexcept
|
|
{
|
|
return rawDeltaTime;
|
|
}
|
|
|
|
//Updates the raw delta time accordingly
|
|
static void UpdateFRC() noexcept;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
//TODO Legacy code. Delete soon
|
|
#if 0
|
|
#include "../Scene/SHScene.h"
|
|
|
|
namespace SHADE
|
|
{
|
|
class SHFramerateController
|
|
{
|
|
private:
|
|
//scene pointers
|
|
static SHScene* previousScene;
|
|
static SHScene* currentScene;
|
|
static SHScene* nextScene;
|
|
|
|
//Flags
|
|
//Whether the flag has been raised for the game to be quit
|
|
static bool toQuit;
|
|
|
|
//Whether the flag has been raised for the current scene to restart
|
|
static bool toRestart;
|
|
|
|
public:
|
|
//Fixed timestep value for physics. Default at 1/100th of a second.
|
|
//Should be lower than the variable refresh rate
|
|
static double fixedTimestep;
|
|
|
|
//Scene Manager Loop
|
|
//This loop is vital to the game because it runs for as long as the game
|
|
//runs. Before entering, initialise vital systems for game. After exiting,
|
|
//free these vital systems before finishing the main() function and
|
|
//terminating the game
|
|
//Parameter of firstScene is what scene the game should start with
|
|
static void Run(SHScene* firstScene);
|
|
|
|
//Set the flag to restart the current game scene
|
|
static inline void RestartScene() { toRestart = true; }
|
|
|
|
//Set the flag to halt running of the scene manager and quit the game
|
|
static inline void QuitGame() { toQuit = true; }
|
|
|
|
//Set the next scene to be excuted
|
|
//This will tell the scene manager to
|
|
//halt execution of the current scene and prepare
|
|
//execution of the next
|
|
static inline void SetNextScene(SHScene* const next) { nextScene = next; }
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif |