diff options
Diffstat (limited to 'src/crepe')
| -rw-r--r-- | src/crepe/api/CMakeLists.txt | 6 | ||||
| -rw-r--r-- | src/crepe/api/IKeyListener.cpp | 19 | ||||
| -rw-r--r-- | src/crepe/api/IKeyListener.h | 50 | ||||
| -rw-r--r-- | src/crepe/api/IMouseListener.cpp | 29 | ||||
| -rw-r--r-- | src/crepe/api/IMouseListener.h | 73 | ||||
| -rw-r--r-- | src/crepe/api/LoopManager.cpp | 37 | ||||
| -rw-r--r-- | src/crepe/api/LoopManager.h | 49 | ||||
| -rw-r--r-- | src/crepe/api/LoopTimer.cpp | 79 | ||||
| -rw-r--r-- | src/crepe/manager/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | src/crepe/manager/EventManager.cpp | 6 | ||||
| -rw-r--r-- | src/crepe/manager/EventManager.h | 24 | ||||
| -rw-r--r-- | src/crepe/manager/LoopTimerManager.cpp | 90 | ||||
| -rw-r--r-- | src/crepe/manager/LoopTimerManager.h (renamed from src/crepe/api/LoopTimer.h) | 97 | ||||
| -rw-r--r-- | src/crepe/manager/Mediator.h | 10 | ||||
| -rw-r--r-- | src/crepe/system/AnimatorSystem.cpp | 4 |
15 files changed, 209 insertions, 366 deletions
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt index 593c4e6..ca4edec 100644 --- a/src/crepe/api/CMakeLists.txt +++ b/src/crepe/api/CMakeLists.txt @@ -15,10 +15,7 @@ target_sources(crepe PUBLIC Animator.cpp BoxCollider.cpp CircleCollider.cpp - IKeyListener.cpp - IMouseListener.cpp LoopManager.cpp - LoopTimer.cpp Asset.cpp EventHandler.cpp Script.cpp @@ -51,10 +48,7 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES EventHandler.h EventHandler.hpp Event.h - IKeyListener.h - IMouseListener.h LoopManager.h - LoopTimer.h Asset.h Button.h UIObject.h diff --git a/src/crepe/api/IKeyListener.cpp b/src/crepe/api/IKeyListener.cpp deleted file mode 100644 index 8642655..0000000 --- a/src/crepe/api/IKeyListener.cpp +++ /dev/null @@ -1,19 +0,0 @@ -#include "IKeyListener.h" - -using namespace crepe; - -// Constructor with specified channel -IKeyListener::IKeyListener(event_channel_t channel) - : event_manager(EventManager::get_instance()) { - this->press_id = event_manager.subscribe<KeyPressEvent>( - [this](const KeyPressEvent & event) { return this->on_key_pressed(event); }, channel); - this->release_id = event_manager.subscribe<KeyReleaseEvent>( - [this](const KeyReleaseEvent & event) { return this->on_key_released(event); }, - channel); -} - -// Destructor, unsubscribe events -IKeyListener::~IKeyListener() { - event_manager.unsubscribe(this->press_id); - event_manager.unsubscribe(this->release_id); -} diff --git a/src/crepe/api/IKeyListener.h b/src/crepe/api/IKeyListener.h deleted file mode 100644 index 180a0a6..0000000 --- a/src/crepe/api/IKeyListener.h +++ /dev/null @@ -1,50 +0,0 @@ -#pragma once - -#include "../manager/EventManager.h" - -#include "Event.h" -#include "EventHandler.h" - -namespace crepe { - -/** - * \class IKeyListener - * \brief Interface for keyboard event handling in the application. - */ -class IKeyListener { -public: - /** - * \brief Constructs an IKeyListener with a specified channel. - * \param channel The channel ID for event handling. - */ - IKeyListener(event_channel_t channel = EventManager::CHANNEL_ALL); - virtual ~IKeyListener(); - IKeyListener(const IKeyListener &) = delete; - IKeyListener & operator=(const IKeyListener &) = delete; - IKeyListener & operator=(IKeyListener &&) = delete; - IKeyListener(IKeyListener &&) = delete; - - /** - * \brief Pure virtual function to handle key press events. - * \param event The key press event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_key_pressed(const KeyPressEvent & event) = 0; - - /** - * \brief Pure virtual function to handle key release events. - * \param event The key release event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_key_released(const KeyReleaseEvent & event) = 0; - -private: - //! Key press event id - subscription_t press_id = -1; - //! Key release event id - subscription_t release_id = -1; - //! EventManager reference - EventManager & event_manager; -}; - -} // namespace crepe diff --git a/src/crepe/api/IMouseListener.cpp b/src/crepe/api/IMouseListener.cpp deleted file mode 100644 index 989aeb3..0000000 --- a/src/crepe/api/IMouseListener.cpp +++ /dev/null @@ -1,29 +0,0 @@ -#include "IMouseListener.h" - -using namespace crepe; - -IMouseListener::IMouseListener(event_channel_t channel) - : event_manager(EventManager::get_instance()) { - this->click_id = event_manager.subscribe<MouseClickEvent>( - [this](const MouseClickEvent & event) { return this->on_mouse_clicked(event); }, - channel); - - this->press_id = event_manager.subscribe<MousePressEvent>( - [this](const MousePressEvent & event) { return this->on_mouse_pressed(event); }, - channel); - - this->release_id = event_manager.subscribe<MouseReleaseEvent>( - [this](const MouseReleaseEvent & event) { return this->on_mouse_released(event); }, - channel); - - this->move_id = event_manager.subscribe<MouseMoveEvent>( - [this](const MouseMoveEvent & event) { return this->on_mouse_moved(event); }, channel); -} - -IMouseListener::~IMouseListener() { - // Unsubscribe event handlers - event_manager.unsubscribe(this->click_id); - event_manager.unsubscribe(this->press_id); - event_manager.unsubscribe(this->release_id); - event_manager.unsubscribe(this->move_id); -} diff --git a/src/crepe/api/IMouseListener.h b/src/crepe/api/IMouseListener.h deleted file mode 100644 index e19897d..0000000 --- a/src/crepe/api/IMouseListener.h +++ /dev/null @@ -1,73 +0,0 @@ -#pragma once - -#include "../manager/EventManager.h" - -#include "Event.h" -#include "EventHandler.h" - -namespace crepe { - -/** - * \class IMouseListener - * \brief Interface for mouse event handling in the application. - */ -class IMouseListener { -public: - /** - * \brief Constructs an IMouseListener with a specified channel. - * \param channel The channel ID for event handling. - */ - IMouseListener(event_channel_t channel = EventManager::CHANNEL_ALL); - virtual ~IMouseListener(); - IMouseListener & operator=(const IMouseListener &) = delete; - IMouseListener(const IMouseListener &) = delete; - IMouseListener & operator=(const IMouseListener &&) = delete; - IMouseListener(IMouseListener &&) = delete; - - /** - * \brief Move assignment operator (deleted). - */ - IMouseListener & operator=(IMouseListener &&) = delete; - - /** - * \brief Handles a mouse click event. - * \param event The mouse click event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_mouse_clicked(const MouseClickEvent & event) = 0; - - /** - * \brief Handles a mouse press event. - * \param event The mouse press event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_mouse_pressed(const MousePressEvent & event) = 0; - - /** - * \brief Handles a mouse release event. - * \param event The mouse release event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_mouse_released(const MouseReleaseEvent & event) = 0; - - /** - * \brief Handles a mouse move event. - * \param event The mouse move event to handle. - * \return True if the event was handled, false otherwise. - */ - virtual bool on_mouse_moved(const MouseMoveEvent & event) = 0; - -private: - //! Mouse click event id - subscription_t click_id = -1; - //! Mouse press event id - subscription_t press_id = -1; - //! Mouse release event id - subscription_t release_id = -1; - //! Mouse move event id - subscription_t move_id = -1; - //! EventManager reference - EventManager & event_manager; -}; - -} //namespace crepe diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp index 88243c4..4f08bab 100644 --- a/src/crepe/api/LoopManager.cpp +++ b/src/crepe/api/LoopManager.cpp @@ -1,3 +1,6 @@ +#include "../facade/SDLContext.h" + +#include "../manager/EventManager.h" #include "../system/AnimatorSystem.h" #include "../system/CollisionSystem.h" #include "../system/InputSystem.h" @@ -20,51 +23,48 @@ LoopManager::LoopManager() { this->load_system<RenderSystem>(); this->load_system<ScriptSystem>(); this->load_system<InputSystem>(); + this->event_manager.subscribe<ShutDownEvent>( + [this](const ShutDownEvent & event) { return this->on_shutdown(event); }); } -void LoopManager::process_input() { this->get_system<InputSystem>().update(); } +void LoopManager::process_input() { + this->get_system<InputSystem>().update(); + this->event_manager.dispatch_events(); +} void LoopManager::start() { this->setup(); this->loop(); } -void LoopManager::set_running(bool running) { this->game_running = running; } void LoopManager::fixed_update() { - // TODO: retrieve EventManager from direct member after singleton refactor - EventManager & ev = this->mediator.event_manager; - ev.dispatch_events(); this->get_system<ScriptSystem>().update(); this->get_system<PhysicsSystem>().update(); this->get_system<CollisionSystem>().update(); } void LoopManager::loop() { - LoopTimer & timer = this->loop_timer; - timer.start(); while (game_running) { - timer.update(); + this->loop_timer.update(); - while (timer.get_lag() >= timer.get_fixed_delta_time()) { + while (this->loop_timer.get_lag() >= this->loop_timer.get_fixed_loop_interval()) { this->process_input(); this->fixed_update(); - timer.advance_fixed_update(); + this->loop_timer.advance_fixed_update(); } - this->update(); + this->frame_update(); this->render(); - - timer.enforce_frame_rate(); + this->loop_timer.enforce_frame_rate(); } } void LoopManager::setup() { - LoopTimer & timer = this->loop_timer; this->game_running = true; + this->loop_timer.start(); this->scene_manager.load_next_scene(); timer.start(); - timer.set_fps(200); } void LoopManager::render() { @@ -74,4 +74,9 @@ void LoopManager::render() { this->get_system<RenderSystem>().update(); } -void LoopManager::update() {} +bool LoopManager::on_shutdown(const ShutDownEvent & e) { + this->game_running = false; + return false; +} + +void LoopManager::frame_update() {} diff --git a/src/crepe/api/LoopManager.h b/src/crepe/api/LoopManager.h index d8910a0..f94cea1 100644 --- a/src/crepe/api/LoopManager.h +++ b/src/crepe/api/LoopManager.h @@ -4,13 +4,15 @@ #include "../facade/SDLContext.h" #include "../manager/ComponentManager.h" +#include "../manager/EventManager.h" +#include "../manager/LoopTimerManager.h" +#include "../manager/Mediator.h" #include "../manager/SceneManager.h" #include "../system/System.h" -#include "LoopTimer.h" +#include "api/Event.h" namespace crepe { - /** * \brief Main game loop manager * @@ -18,8 +20,14 @@ namespace crepe { */ class LoopManager { public: - void start(); LoopManager(); + /** + * \brief Start the gameloop + * + * This is the start of the engine where the setup is called and then the loop keeps running until the game stops running. + * Developers need to call this function to run the game. + */ + void start(); /** * \brief Add a new concrete scene to the scene manager @@ -55,35 +63,20 @@ private: * * Updates the game state based on the elapsed time since the last frame. */ - void update(); - - /** - * \brief Late update which is called after update(). - * - * This function can be used for final adjustments before rendering. - */ - void late_update(); + virtual void frame_update(); /** * \brief Fixed update executed at a fixed rate. * * This function updates physics and game logic based on LoopTimer's fixed_delta_time. */ - void fixed_update(); - - /** - * \brief Set game running variable - * - * \param running running (false = game shutdown, true = game running) - */ - void set_running(bool running); - + virtual void fixed_update(); /** * \brief Function for executing render-related systems. * * Renders the current state of the game to the screen. */ - void render(); + virtual void render(); bool game_running = false; @@ -95,18 +88,26 @@ private: ComponentManager component_manager{mediator}; //! Scene manager instance SceneManager scene_manager{mediator}; + //! LoopTimerManager instance + LoopTimerManager loop_timer{mediator}; + //! EventManager instance + EventManager event_manager{mediator}; //! SDL context \todo no more singletons! SDLContext & sdl_context = SDLContext::get_instance(); - //! Loop timer \todo no more singletons! - LoopTimer & loop_timer = LoopTimer::get_instance(); private: /** + * \brief Callback function for ShutDownEvent + * + * This function sets the game_running variable to false, stopping the gameloop and therefor quitting the game. + */ + bool on_shutdown(const ShutDownEvent & e); + /** * \brief Collection of System instances * * This map holds System instances indexed by the system's class typeid. It is filled in the - * constructor of \c LoopManager using LoopManager::load_system. + * constructor of LoopManager using LoopManager::load_system. */ std::unordered_map<std::type_index, std::unique_ptr<System>> systems; /** diff --git a/src/crepe/api/LoopTimer.cpp b/src/crepe/api/LoopTimer.cpp deleted file mode 100644 index 15a0e3a..0000000 --- a/src/crepe/api/LoopTimer.cpp +++ /dev/null @@ -1,79 +0,0 @@ -#include <chrono> - -#include "../facade/SDLContext.h" -#include "../util/Log.h" - -#include "LoopTimer.h" - -using namespace crepe; - -LoopTimer::LoopTimer() { dbg_trace(); } - -LoopTimer & LoopTimer::get_instance() { - static LoopTimer instance; - return instance; -} - -void LoopTimer::start() { - this->last_frame_time = std::chrono::steady_clock::now(); - this->elapsed_time = std::chrono::milliseconds(0); - this->elapsed_fixed_time = std::chrono::milliseconds(0); - this->delta_time = std::chrono::milliseconds(0); -} - -void LoopTimer::update() { - auto current_frame_time = std::chrono::steady_clock::now(); - // Convert to duration in seconds for delta time - this->delta_time = std::chrono::duration_cast<std::chrono::duration<double>>( - current_frame_time - last_frame_time); - - if (this->delta_time > this->maximum_delta_time) { - this->delta_time = this->maximum_delta_time; - } - - this->delta_time *= this->game_scale; - this->elapsed_time += this->delta_time; - this->last_frame_time = current_frame_time; -} - -double LoopTimer::get_delta_time() const { return this->delta_time.count(); } - -double LoopTimer::get_current_time() const { return this->elapsed_time.count(); } - -void LoopTimer::advance_fixed_update() { this->elapsed_fixed_time += this->fixed_delta_time; } - -double LoopTimer::get_fixed_delta_time() const { return this->fixed_delta_time.count(); } - -void LoopTimer::set_fps(int fps) { - this->fps = fps; - // target time per frame in seconds - this->frame_target_time = std::chrono::duration<double>(1.0) / fps; -} - -int LoopTimer::get_fps() const { return this->fps; } - -void LoopTimer::set_game_scale(double value) { this->game_scale = value; } - -double LoopTimer::get_game_scale() const { return this->game_scale; } -void LoopTimer::enforce_frame_rate() { - std::chrono::steady_clock::time_point current_frame_time - = std::chrono::steady_clock::now(); - std::chrono::milliseconds frame_duration - = std::chrono::duration_cast<std::chrono::milliseconds>(current_frame_time - - this->last_frame_time); - - if (frame_duration < this->frame_target_time) { - std::chrono::milliseconds delay_time - = std::chrono::duration_cast<std::chrono::milliseconds>(this->frame_target_time - - frame_duration); - if (delay_time.count() > 0) { - SDLContext::get_instance().delay(delay_time.count()); - } - } - - this->last_frame_time = current_frame_time; -} - -double LoopTimer::get_lag() const { - return (this->elapsed_time - this->elapsed_fixed_time).count(); -} diff --git a/src/crepe/manager/CMakeLists.txt b/src/crepe/manager/CMakeLists.txt index 517b8a2..29d6df0 100644 --- a/src/crepe/manager/CMakeLists.txt +++ b/src/crepe/manager/CMakeLists.txt @@ -4,6 +4,7 @@ target_sources(crepe PUBLIC Manager.cpp SaveManager.cpp SceneManager.cpp + LoopTimerManager.cpp ) target_sources(crepe PUBLIC FILE_SET HEADERS FILES @@ -16,5 +17,6 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES SaveManager.h SceneManager.h SceneManager.hpp + LoopTimerManager.h ) diff --git a/src/crepe/manager/EventManager.cpp b/src/crepe/manager/EventManager.cpp index 20f0dd3..6aa49ee 100644 --- a/src/crepe/manager/EventManager.cpp +++ b/src/crepe/manager/EventManager.cpp @@ -3,11 +3,9 @@ using namespace crepe; using namespace std; -EventManager & EventManager::get_instance() { - static EventManager instance; - return instance; +EventManager::EventManager(Mediator & mediator) : Manager(mediator) { + this->mediator.event_manager = *this; } - void EventManager::dispatch_events() { for (auto & event : this->events_queue) { this->handle_event(event.type, event.channel, *event.event.get()); diff --git a/src/crepe/manager/EventManager.h b/src/crepe/manager/EventManager.h index ba5e98b..ba55edf 100644 --- a/src/crepe/manager/EventManager.h +++ b/src/crepe/manager/EventManager.h @@ -8,6 +8,8 @@ #include "../api/Event.h" #include "../api/EventHandler.h" +#include "Manager.h" + namespace crepe { //! Event listener unique ID @@ -22,27 +24,16 @@ typedef size_t subscription_t; typedef size_t event_channel_t; /** - * \class EventManager * \brief Manages event subscriptions, triggers, and queues, enabling decoupled event handling. * * The `EventManager` acts as a centralized event system. It allows for registering callbacks * for specific event types, triggering events synchronously, queueing events for later * processing, and managing subscriptions via unique identifiers. */ -class EventManager { +class EventManager : public Manager { public: static constexpr const event_channel_t CHANNEL_ALL = -1; - - /** - * \brief Get the singleton instance of the EventManager. - * - * This method returns the unique instance of the EventManager, creating it if it - * doesn't already exist. Ensures only one instance is active in the program. - * - * \return Reference to the singleton instance of the EventManager. - */ - static EventManager & get_instance(); - + EventManager(Mediator & mediator); /** * \brief Subscribe to a specific event type. * @@ -108,13 +99,6 @@ public: private: /** - * \brief Default constructor for the EventManager. - * - * Constructor is private to enforce the singleton pattern. - */ - EventManager() = default; - - /** * \struct QueueEntry * \brief Represents an entry in the event queue. */ diff --git a/src/crepe/manager/LoopTimerManager.cpp b/src/crepe/manager/LoopTimerManager.cpp new file mode 100644 index 0000000..9c77785 --- /dev/null +++ b/src/crepe/manager/LoopTimerManager.cpp @@ -0,0 +1,90 @@ +#include <chrono> +#include <thread> + +#include "../facade/SDLContext.h" +#include "../util/Log.h" + +#include "LoopTimerManager.h" + +using namespace crepe; + +LoopTimerManager::LoopTimerManager(Mediator & mediator) : Manager(mediator) { + this->mediator.loop_timer = *this; + dbg_trace(); +} + +void LoopTimerManager::start() { + this->last_frame_time = std::chrono::steady_clock::now(); + + this->elapsed_time = std::chrono::milliseconds(0); + // by starting the elapsed_fixed_time at (0 - fixed_delta_time) in milliseconds it calls a fixed update at the start of the loop. + this->elapsed_fixed_time + = -std::chrono::duration_cast<std::chrono::milliseconds>(fixed_delta_time); + this->delta_time = std::chrono::milliseconds(0); +} + +void LoopTimerManager::update() { + auto current_frame_time = std::chrono::steady_clock::now(); + // Convert to duration in seconds for delta time + this->delta_time = std::chrono::duration_cast<std::chrono::duration<double>>( + current_frame_time - last_frame_time); + + if (this->delta_time > this->maximum_delta_time) { + this->delta_time = this->maximum_delta_time; + } + this->actual_fps = 1.0 / this->delta_time.count(); + + this->elapsed_time += this->delta_time; + this->last_frame_time = current_frame_time; +} + +double LoopTimerManager::get_delta_time() const { + return this->delta_time.count() * this->time_scale; +} + +double LoopTimerManager::get_current_time() const { return this->elapsed_time.count(); } + +void LoopTimerManager::advance_fixed_update() { + this->elapsed_fixed_time += this->fixed_delta_time; +} + +void LoopTimerManager::set_target_fps(int fps) { + this->target_fps = fps; + // target time per frame in seconds + this->frame_target_time = std::chrono::duration<double>(1.0) / this->target_fps; +} + +int LoopTimerManager::get_fps() const { return this->actual_fps; } + +void LoopTimerManager::set_time_scale(double value) { this->time_scale = value; } + +double LoopTimerManager::get_time_scale() const { return this->time_scale; } + +void LoopTimerManager::enforce_frame_rate() { + auto current_frame_time = std::chrono::steady_clock::now(); + auto frame_duration = current_frame_time - this->last_frame_time; + + // Check if frame duration is less than the target frame time + if (frame_duration < this->frame_target_time) { + auto delay_time = std::chrono::duration_cast<std::chrono::microseconds>( + this->frame_target_time - frame_duration); + + if (delay_time.count() > 0) { + std::this_thread::sleep_for(delay_time); + } + } +} + +double LoopTimerManager::get_lag() const { + return (this->elapsed_time - this->elapsed_fixed_time).count(); +} +double LoopTimerManager::get_fixed_delta_time() const { + return this->fixed_delta_time.count() * this->time_scale; +} +void LoopTimerManager::set_fixed_delta_time(int seconds) { + this->fixed_delta_time = std::chrono::duration<double>(seconds); +} + +double LoopTimerManager::get_fixed_loop_interval() const { + return this->fixed_delta_time.count(); +} diff --git a/src/crepe/api/LoopTimer.h b/src/crepe/manager/LoopTimerManager.h index 9393439..84178eb 100644 --- a/src/crepe/api/LoopTimer.h +++ b/src/crepe/manager/LoopTimerManager.h @@ -2,17 +2,21 @@ #include <chrono> +#include "Manager.h" + namespace crepe { -class LoopTimer { +/** + * \brief Manages timing and frame rate for the game loop. + * + * The LoopTimerManager class is responsible for calculating and managing timing functions + * such as delta time, frames per second (FPS), fixed time steps, and time scaling. It ensures + * consistent frame updates and supports game loop operations, such as handling fixed updates + * for physics and other time-sensitive operations. + */ +class LoopTimerManager : public Manager { public: - /** - * \brief Get the singleton instance of LoopTimer. - * - * \return A reference to the LoopTimer instance. - */ - static LoopTimer & get_instance(); - + LoopTimerManager(Mediator & mediator); /** * \brief Get the current delta time for the current frame. * @@ -35,7 +39,7 @@ public: * * \param fps The desired frames rendered per second. */ - void set_fps(int fps); + void set_target_fps(int fps); /** * \brief Get the current frames per second (FPS). @@ -45,19 +49,50 @@ public: int get_fps() const; /** - * \brief Get the current game scale. + * \brief Get the current time scale. * - * \return The current game scale, where 0 = paused, 1 = normal speed, and values > 1 speed + * \return The current time scale, where (0 = pause, < 1 = slow down, 1 = normal speed, > 1 = speed up). * up the game. */ - double get_game_scale() const; + double get_time_scale() const; + + /** + * \brief Set the time scale. + * + * time_scale is a value that changes the delta time that can be retrieved using get_delta_time function. + * + * \param time_scale The desired time scale (0 = pause, < 1 = slow down, 1 = normal speed, > 1 = speed up). + */ + void set_time_scale(double time_scale); + + /** + * \brief Get the scaled fixed delta time om seconds. + * + * The fixed delta time is used for operations that require uniform time steps, + * such as physics calculations, and is scaled by the current time scale. + * + * \return The fixed delta time, scaled by time scale, in seconds. + */ + double get_fixed_loop_interval() const; /** - * \brief Set the game scale. + * \brief Get the fixed delta time in seconds without scaling by the time scale. * - * \param game_scale The desired game scale (0 = pause, 1 = normal speed, > 1 = speed up). + * This value is used in the LoopManager to determine how many times + * the fixed_update should be called within a given interval. + * + * \return The unscaled fixed delta time in seconds. */ - void set_game_scale(double game_scale); + double get_fixed_delta_time() const; + + /** + * \brief Set the fixed_delta_time in seconds. + * + * \param ms fixed_delta_time in seconds. + * + * The fixed_delta_time value is used to determine how many times per second the fixed_update and process_input functions are called. + */ + void set_fixed_delta_time(int seconds); private: friend class LoopManager; @@ -68,7 +103,6 @@ private: * Initializes the timer to begin tracking frame times. */ void start(); - /** * \brief Enforce the frame rate limit. * @@ -76,17 +110,6 @@ private: * 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. * @@ -98,13 +121,6 @@ private: 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 @@ -121,16 +137,19 @@ private: void advance_fixed_update(); private: - //! Current frames per second - int fps = 50; - //! Current game scale - double game_scale = 1; + //! Target frames per second + int target_fps = 50; + //! Actual frames per second + int actual_fps = 0; + //! Time scale for speeding up or slowing down the game (0 = pause, < 1 = slow down, 1 = normal speed, > 1 = speed up) + double time_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; + std::chrono::duration<double> frame_target_time + = std::chrono::duration<double>(1.0) / target_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 diff --git a/src/crepe/manager/Mediator.h b/src/crepe/manager/Mediator.h index 8094d80..eb8a7a5 100644 --- a/src/crepe/manager/Mediator.h +++ b/src/crepe/manager/Mediator.h @@ -4,15 +4,15 @@ // TODO: remove these singletons: #include "../facade/SDLContext.h" -#include "EventManager.h" + #include "SaveManager.h" -#include "api/LoopTimer.h" namespace crepe { class ComponentManager; class SceneManager; - +class LoopTimerManager; +class EventManager; /** * Struct to pass references to classes that would otherwise need to be singletons down to * other classes within the engine hierarchy. Made to prevent constant changes to subclasses to @@ -28,10 +28,10 @@ class SceneManager; struct Mediator { OptionalRef<ComponentManager> component_manager; OptionalRef<SceneManager> scene_manager; + OptionalRef<EventManager> event_manager; + OptionalRef<LoopTimerManager> loop_timer; OptionalRef<SaveManager> save_manager = SaveManager::get_instance(); - OptionalRef<EventManager> event_manager = EventManager::get_instance(); OptionalRef<SDLContext> sdl_context = SDLContext::get_instance(); - OptionalRef<LoopTimer> timer = LoopTimer::get_instance(); }; } // namespace crepe diff --git a/src/crepe/system/AnimatorSystem.cpp b/src/crepe/system/AnimatorSystem.cpp index 549c35d..499f618 100644 --- a/src/crepe/system/AnimatorSystem.cpp +++ b/src/crepe/system/AnimatorSystem.cpp @@ -2,7 +2,7 @@ #include "../api/Animator.h" #include "../manager/ComponentManager.h" -#include "api/LoopTimer.h" +#include "../manager/LoopTimerManager.h" #include "AnimatorSystem.h" @@ -10,7 +10,7 @@ using namespace crepe; void AnimatorSystem::update() { ComponentManager & mgr = this->mediator.component_manager; - LoopTimer & timer = this->mediator.timer; + LoopTimerManager & timer = this->mediator.loop_timer; RefVector<Animator> animations = mgr.get_components_by_type<Animator>(); double elapsed_time = timer.get_current_time(); |