mgl_application_module_common.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_APPLICATION_MODULE_COMMON_H_1613962458
#define INCGUARD_MGL_APPLICATION_MODULE_COMMON_H_1613962458
 
#include <mgl/system/application/mgl_application_module_interface.h>
 
#include <mgl/event/mgl_event.h>
#include <mgl/system/chrono/mgl_chrono_elapsed_timer.h>
 
namespace MGL::System
{
class CommonApplicationModule : public ApplicationModuleInterface
{
public:
    CommonApplicationModule() noexcept;
    ~CommonApplicationModule() noexcept override = default;
 
    [[nodiscard]] float GetFrameElapsedTime() const noexcept override;
    [[nodiscard]] uint32_t GetFramesPerSecond() const noexcept override;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    void SetApplicationDelegate(STL::unique_ptr<ApplicationDelegate> delegate) noexcept override
    {
        _delegate = std::move(delegate);
    }
 
private:
    static void OnEventPreFrameUpdate(void *callbackArg, void *notifyArg) noexcept;
 
    void UpdateFPS() noexcept;
 
    Event::Handle _eventPreFrameUpdate;
    ElapsedTimer _elapsedTimer{0};
    EpochTime _prevUpdateTime{0};
    uint32_t _frameUpdateCount{0};
    uint32_t _fps{0};
    STL::unique_ptr<ApplicationDelegate> _delegate;
};
 
}    // namespace MGL::System
 
#endif    // INCGUARD_MGL_APPLICATION_MODULE_COMMON_H_1613962458
 
// vim: et ts=4 sw=4 sts=4