128 lines
3.7 KiB
C++
128 lines
3.7 KiB
C++
#pragma once
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#include <easy2d/core/types.h>
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#include <easy2d/core/string.h>
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#include <easy2d/graphics/render_backend.h>
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#include <easy2d/platform/window.h>
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#include <memory>
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namespace easy2d {
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// 前向声明
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class Input;
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class AudioEngine;
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class SceneManager;
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class ResourceManager;
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class TimerManager;
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class EventQueue;
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class EventDispatcher;
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class Camera;
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// ============================================================================
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// Application 配置
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// ============================================================================
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struct AppConfig {
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String title = "Easy2D Application";
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int width = 800;
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int height = 600;
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bool fullscreen = false;
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bool resizable = true; // 窗口是否可调整大小
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bool vsync = true;
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int fpsLimit = 0; // 0 = 不限制
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BackendType renderBackend = BackendType::OpenGL;
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int msaaSamples = 0;
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};
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// ============================================================================
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// Application 单例 - 应用主控
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// ============================================================================
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class Application {
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public:
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// Meyer's 单例
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static Application& instance();
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// 禁止拷贝
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Application(const Application&) = delete;
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Application& operator=(const Application&) = delete;
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// ------------------------------------------------------------------------
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// 生命周期
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// ------------------------------------------------------------------------
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bool init(const AppConfig& config);
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void shutdown();
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void run();
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void quit();
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// ------------------------------------------------------------------------
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// 状态控制
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// ------------------------------------------------------------------------
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void pause();
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void resume();
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bool isPaused() const { return paused_; }
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bool isRunning() const { return running_; }
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// ------------------------------------------------------------------------
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// 子系统访问
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// ------------------------------------------------------------------------
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Window& window() { return *window_; }
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RenderBackend& renderer() { return *renderer_; }
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Input& input();
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AudioEngine& audio();
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SceneManager& scenes();
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ResourceManager& resources();
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TimerManager& timers();
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EventQueue& eventQueue();
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EventDispatcher& eventDispatcher();
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Camera& camera();
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// ------------------------------------------------------------------------
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// 便捷方法
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// ------------------------------------------------------------------------
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void enterScene(Ptr<class Scene> scene);
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void enterScene(Ptr<class Scene> scene, Ptr<class Transition> transition);
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float deltaTime() const { return deltaTime_; }
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float totalTime() const { return totalTime_; }
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int fps() const { return currentFps_; }
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// 获取配置
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const AppConfig& getConfig() const { return config_; }
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private:
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Application() = default;
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~Application();
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void mainLoop();
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void update();
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void render();
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// 配置
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AppConfig config_;
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// 子系统
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UniquePtr<Window> window_;
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UniquePtr<RenderBackend> renderer_;
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UniquePtr<SceneManager> sceneManager_;
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UniquePtr<ResourceManager> resourceManager_;
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UniquePtr<TimerManager> timerManager_;
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UniquePtr<EventQueue> eventQueue_;
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UniquePtr<EventDispatcher> eventDispatcher_;
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UniquePtr<Camera> camera_;
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// 状态
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bool initialized_ = false;
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bool running_ = false;
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bool paused_ = false;
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bool shouldQuit_ = false;
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// 时间
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float deltaTime_ = 0.0f;
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float totalTime_ = 0.0f;
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double lastFrameTime_ = 0.0;
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int frameCount_ = 0;
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float fpsTimer_ = 0.0f;
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int currentFps_ = 0;
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};
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} // namespace easy2d
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