diff options
Diffstat (limited to 'src/crepe/api/LoopTimer.h')
| -rw-r--r-- | src/crepe/api/LoopTimer.h | 145 |
1 files changed, 71 insertions, 74 deletions
diff --git a/src/crepe/api/LoopTimer.h b/src/crepe/api/LoopTimer.h index 85687be..f277d7b 100644 --- a/src/crepe/api/LoopTimer.h +++ b/src/crepe/api/LoopTimer.h @@ -1,124 +1,123 @@ #pragma once #include <chrono> -#include <cstdint> namespace crepe { class LoopTimer { public: /** - * \brief Get the singleton instance of LoopTimer. - * - * \return A reference to the LoopTimer instance. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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). - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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. - */ + * \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: @@ -131,11 +130,9 @@ private: //! 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::seconds(1) / fps; + std::chrono::duration<double> frame_target_time = std::chrono::seconds(1) / fps; //! Fixed delta time for fixed updates in seconds - std::chrono::duration<double> fixed_delta_time - = std::chrono::seconds(1) / 50; + std::chrono::duration<double> fixed_delta_time = std::chrono::seconds(1) / 50; //! Total elapsed game time in seconds std::chrono::duration<double> elapsed_time{0.0}; //! Total elapsed time for fixed updates in seconds |