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82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
#ifndef CLIGHT_H
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#define CLIGHT_H
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#include <FileIO/IInputStream.h>
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#include <Common/CColor.h>
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#include <Math/CVector3f.h>
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/* CLight is currently heavily based on the lights system from Metroid Prime,
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* including code reverse engineered from the game's executable. Not yet sure
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* how much needs to be modified to properly support DKCR. */
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enum ELightType
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{
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eLocalAmbient = 0,
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eDirectional = 1,
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eSpot = 3,
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eCustom = 2
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};
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class CLight
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{
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ELightType mType;
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u32 mLayerIndex;
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CVector3f mPosition;
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CVector3f mDirection;
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CColor mColor;
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float mSpotCutoff;
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CVector3f mDistAttenCoefficients;
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CVector3f mAngleAttenCoefficients;
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mutable float mCachedRadius;
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mutable float mCachedIntensity;
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mutable u8 mDirtyFlags;
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public:
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CLight();
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private:
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// Data Manipulation
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float CalculateRadius() const;
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float CalculateIntensity() const;
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CVector3f CalculateSpotAngleAtten();
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public:
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// Accessors
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inline ELightType Type() const { return mType; }
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inline u32 LayerIndex() const { return mLayerIndex; }
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inline CVector3f Position() const { return mPosition; }
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inline CVector3f Direction() const { return mDirection; }
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inline CColor Color() const { return mColor; }
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inline CVector3f DistAttenuation() const { return mDistAttenCoefficients; }
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inline CVector3f AngleAttenuation() const { return mAngleAttenCoefficients; }
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inline void SetLayer(u32 Index) { mLayerIndex = Index; }
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inline void SetPosition(const CVector3f& rkPosition) { mPosition = rkPosition; }
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inline void SetDirection(const CVector3f& rkDirection) { mDirection = rkDirection; }
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float GetRadius() const;
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float GetIntensity() const;
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void SetColor(const CColor& rkColor);
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void SetSpotCutoff(float Cutoff);
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void SetDistAtten(float DistCoefA, float DistCoefB, float DistCoefC);
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void SetAngleAtten(float AngleCoefA, float AngleCoefB, float AngleCoefC);
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// Other
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void Load() const;
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// Static
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static CLight* BuildLocalAmbient(const CVector3f& rkPosition, const CColor& rkColor);
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static CLight* BuildDirectional(const CVector3f& rkPosition, const CVector3f& rkDirection, const CColor& rkColor);
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static CLight* BuildSpot(const CVector3f& rkPosition, const CVector3f& rkDirection, const CColor& rkColor, float Cutoff);
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static CLight* BuildCustom(const CVector3f& rkPosition, const CVector3f& rkDirection, const CColor& rkColor,
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float DistAttenA, float DistAttenB, float DistAttenC,
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float AngleAttenA, float AngleAttenB, float AngleAttenC);
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// Constants
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static const CVector3f skDefaultLightPos;
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static const CVector3f skDefaultLightDir;
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};
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#endif // CLIGHT_H
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