CameraManager.h

#pragma once
 
// Standard.
#include <memory>
#include <mutex>
 
// External.
#include "GcPtr.h"
 
namespace ne {
    class CameraNode;
    class Renderer;
    class CameraProperties;
 
    class CameraManager {
        // Active camera node will notify the manager when it's being despawned.
        friend class CameraNode;
 
    public:
        CameraManager() = delete;
 
        CameraManager(Renderer* pRenderer);
 
        void setActiveCamera(const sgc::GcPtr<CameraNode>& pCameraNode);
 
        void clearActiveCamera();
 
        std::pair<std::recursive_mutex, sgc::GcPtr<CameraNode>>* getActiveCamera();
 
    private:
        void onCameraNodeDespawning(CameraNode* pCameraNode);
 
        Renderer* pRenderer = nullptr;
 
        std::pair<std::recursive_mutex, sgc::GcPtr<CameraNode>> mtxActiveCamera;
    };
} // namespace ne