api/_render_system_8h_source.html

#pragma once

#include "../Core/Core.h"

#include "../Math.h"

#include "ShitEngine/System/System.h"


struct SDL_Renderer;


namespace Shit {

    class CameraComponent;

    class RendererComponent;


class SHIT_API SHIT_REFLECT(WhiteList) RenderSystem final : public System {

    SHIT_REFLECT_BODY(RenderSystem)

public:

        RenderSystem(int priority = 100);

        ~RenderSystem() override;


        void update() override;

        void destroy() override;


        // 组件认领：RendererComponent + CameraComponent

        bool onComponentAttached(Component* component) override;

        void onComponentDetached(Component* component) override;


        void registerRenderer(RendererComponent *renderer);

        void unregisterRenderer(RendererComponent *renderer);

        void registerCamera(CameraComponent *camera);

        void unregisterCamera(CameraComponent *camera);


    private:

        void compactRenderers();

        void compactCameras();


        SDL_Renderer* m_renderer = nullptr;


        std::vector<RendererComponent*> m_renderers;

        bool m_isRenderersNeedSort = false;


        std::vector<CameraComponent*> m_cameras;

        bool m_isCamerasNeedSort = false;

    };


}

Core.h

SHIT_API
#define SHIT_API
定义 Core.h:14

SHIT_REFLECT_BODY
#define SHIT_REFLECT_BODY(Type)
定义 Macros.h:89

SHIT_REFLECT
#define SHIT_REFLECT(Mode)
定义 Macros.h:86

Math.h

System.h

Shit::CameraComponent
相机组件，定义"从哪个角度观察世界"
定义 CameraComponent.h:16

Shit::Component
组件基类
定义 Component.h:25

Shit::RenderSystem::RenderSystem
RenderSystem(int priority=100)

Shit::RenderSystem::unregisterRenderer
void unregisterRenderer(RendererComponent *renderer)
注销渲染组件

Shit::RenderSystem::unregisterCamera
void unregisterCamera(CameraComponent *camera)
注销相机

Shit::RenderSystem::update
void update() override
每帧更新（纯虚）

Shit::RenderSystem::onComponentAttached
bool onComponentAttached(Component *component) override
组件挂载时调用。返回 true 表示本系统认领并处理了该组件（组件据此确定已注册）。

Shit::RenderSystem::onComponentDetached
void onComponentDetached(Component *component) override
组件卸下时调用。

Shit::RenderSystem::registerCamera
void registerCamera(CameraComponent *camera)
注册相机

Shit::RenderSystem::~RenderSystem
~RenderSystem() override

Shit::RenderSystem::registerRenderer
void registerRenderer(RendererComponent *renderer)
注册渲染组件

Shit::RenderSystem::destroy
void destroy() override
销毁（纯虚）

Shit::RendererComponent
渲染组件基类
定义 RendererComponent.h:18

Shit::System::System
System(int priority=0)

Shit
定义 AnimationClip.h:12