LightManager.h

#pragma once
#include <vector>
#include "LightParam.h"

namespace ParaEngine
{
    using namespace std;
    typedef vector<CLightParam*> LightList;

    class CLightManager
    {
    public:
        CLightManager(void);
        ~CLightManager(void);

        static CLightManager& GetSingleton();
    public:
        void CleanupLights();

        bool RegisterLight(CLightParam* pLight);
        bool UnRegisterLight(CLightParam* pLight);

        int GetBestLights(const Vector3& vCenter , float fRadius, LightList & listOutLights, int nMaxNumLights = 0xffffffff);
        int GetBestLights(const Vector3& vCenter , float fRadius, int nMaxNumLights = 0xffffffff);
        LightList* GetLastResult();
        int GetLastResultNum();

        int GetNumLights() const;
        LightList& GetLights();

        int ComputeLightScore(CLightParam* pLight, const Vector3& vCenter, float fRadius) const;

    private:
        int FillLightList(LightList & listOutLights, int nMaxNumLights = 0xffffffff);

        // light pool
        LightList m_lights;
        // light result
        LightList m_lightsRes;
        int m_lightsResNum;
    };
}