CameraComponent.h

浏览该文件的文档.

#pragma once
#include "../Core/Core.h"
#include "Component.h"
#include "../Math.h"
#include <SDL3/SDL_rect.h>
 
namespace Shit {
    class SHIT_API CameraComponent : public Component {
    public:
        CameraComponent();
 
        void onAttach() override;
        void onDestroy() override;
 
        // 坐标转换
        Vector2 worldToScreen(const Vector2& worldPosition) const;  
        Vector2 screenToWorld(const Vector2& screenPosition) const;  
 
        Vector2 getPosition() const;             
        Vector2 getSize() const { return m_worldSize; }       
        float getZoom() const { return m_zoom; }              
        int getPriority() const { return m_priority; }        
        float getPixelPerUnit() const;                         
 
        void setSize(const Vector2& worldSize) { m_worldSize = worldSize; }
        void setZoom(float zoom) { m_zoom = zoom; }
        void setPriority(int priority) { m_priority = priority; }
 
        const SDL_FRect& getViewportRatio() const { return m_viewportRatio; }  
        void setViewportRatio(const SDL_FRect& ratio) { m_viewportRatio = ratio; } 
 
    private:
        Vector2 m_worldSize{ 1280.0f, 720.0f };  
        float m_zoom = 1.0f;
        int m_priority = 0;
        SDL_FRect m_viewportRatio{ 0.0f, 0.0f, 1.0f, 1.0f }; 
    };
}