diff options
Diffstat (limited to 'src/crepe/api/LoopTimer.h')
| -rw-r--r-- | src/crepe/api/LoopTimer.h | 144 | 
1 files changed, 0 insertions, 144 deletions
diff --git a/src/crepe/api/LoopTimer.h b/src/crepe/api/LoopTimer.h deleted file mode 100644 index 9393439..0000000 --- a/src/crepe/api/LoopTimer.h +++ /dev/null @@ -1,144 +0,0 @@ -#pragma once - -#include <chrono> - -namespace crepe { - -class LoopTimer { -public: -	/** -	 * \brief Get the singleton instance of LoopTimer. -	 * -	 * \return A reference to the LoopTimer instance. -	 */ -	static LoopTimer & get_instance(); - -	/** -	 * \brief Get the current delta time for the current frame. -	 * -	 * \return Delta time in seconds since the last frame. -	 */ -	double get_delta_time() const; - -	/** -	 * \brief Get the current game time. -	 * -	 * \note The current game time may vary from real-world elapsed time. It is the cumulative -	 * sum of each frame's delta time. -	 * -	 * \return Elapsed game time in seconds. -	 */ -	double get_current_time() const; - -	/** -	 * \brief Set the target frames per second (FPS). -	 * -	 * \param fps The desired frames rendered per second. -	 */ -	void set_fps(int fps); - -	/** -	 * \brief Get the current frames per second (FPS). -	 * -	 * \return Current FPS. -	 */ -	int get_fps() const; - -	/** -	 * \brief Get the current game scale. -	 * -	 * \return The current game scale, where 0 = paused, 1 = normal speed, and values > 1 speed -	 * up the game. -	 */ -	double get_game_scale() const; - -	/** -	 * \brief Set the game scale. -	 * -	 * \param game_scale The desired game scale (0 = pause, 1 = normal speed, > 1 = speed up). -	 */ -	void set_game_scale(double game_scale); - -private: -	friend class LoopManager; - -	/** -	 * \brief Start the loop timer. -	 * -	 * Initializes the timer to begin tracking frame times. -	 */ -	void start(); - -	/** -	 * \brief Enforce the frame rate limit. -	 * -	 * Ensures that the game loop does not exceed the target FPS by delaying frame updates as -	 * necessary. -	 */ -	void enforce_frame_rate(); - -	/** -	 * \brief Get the fixed delta time for consistent updates. -	 * -	 * Fixed delta time is used for operations that require uniform time steps, such as physics -	 * calculations. -	 * -	 * \return Fixed delta time in seconds. -	 */ -	double get_fixed_delta_time() const; - -	/** -	 * \brief Get the accumulated lag in the game loop. -	 * -	 * Lag represents the difference between the target frame time and the actual frame time, -	 * useful for managing fixed update intervals. -	 * -	 * \return Accumulated lag in seconds. -	 */ -	double get_lag() const; - -	/** -	 * \brief Construct a new LoopTimer object. -	 * -	 * Private constructor for singleton pattern to restrict instantiation outside the class. -	 */ -	LoopTimer(); - -	/** -	 * \brief Update the timer to the current frame. -	 * -	 * Calculates and updates the delta time for the current frame and adds it to the cumulative -	 * game time. -	 */ -	void update(); - -	/** -	 * \brief Advance the game loop by a fixed update interval. -	 * -	 * This method progresses the game state by a consistent, fixed time step, allowing for -	 * stable updates independent of frame rate fluctuations. -	 */ -	void advance_fixed_update(); - -private: -	//! Current frames per second -	int fps = 50; -	//! Current game scale -	double game_scale = 1; -	//! Maximum delta time in seconds to avoid large jumps -	std::chrono::duration<double> maximum_delta_time{0.25}; -	//! Delta time for the current frame in seconds -	std::chrono::duration<double> delta_time{0.0}; -	//! Target time per frame in seconds -	std::chrono::duration<double> frame_target_time = std::chrono::duration<double>(1.0) / fps; -	//! Fixed delta time for fixed updates in seconds -	std::chrono::duration<double> fixed_delta_time = std::chrono::duration<double>(1.0) / 50.0; -	//! Total elapsed game time in seconds -	std::chrono::duration<double> elapsed_time{0.0}; -	//! Total elapsed time for fixed updates in seconds -	std::chrono::duration<double> elapsed_fixed_time{0.0}; -	//! Time of the last frame -	std::chrono::steady_clock::time_point last_frame_time; -}; - -} // namespace crepe  |