/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
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  following disclaimer.

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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/
/** @file aiColor4D.h
 *  @brief RGBA color structure, including operators when compiling in C++
 */
#ifndef AI_COLOR4D_H_INC
#define AI_COLOR4D_H_INC

#include "./Compiler/pushpack1.h"

#ifdef __cplusplus

// ----------------------------------------------------------------------------------
/** Represents a color in Red-Green-Blue space including an 
*   alpha component. Color values range from 0 to 1. */
// ----------------------------------------------------------------------------------
template <typename TReal>
class aiColor4t
{
public:
	aiColor4t () : r(), g(), b(), a() {}
	aiColor4t (TReal _r, TReal _g, TReal _b, TReal _a) 
		: r(_r), g(_g), b(_b), a(_a) {}
	aiColor4t (TReal _r) : r(_r), g(_r), b(_r), a(_r) {}
	aiColor4t (const aiColor4t& o) 
		: r(o.r), g(o.g), b(o.b), a(o.a) {}

public:
	// combined operators
	const aiColor4t& operator += (const aiColor4t& o);
	const aiColor4t& operator -= (const aiColor4t& o);
	const aiColor4t& operator *= (TReal f);
	const aiColor4t& operator /= (TReal f);

public:
	// comparison
	bool operator == (const aiColor4t& other) const;
	bool operator != (const aiColor4t& other) const;

	// color tuple access, rgba order
	inline TReal operator[](unsigned int i) const;
	inline TReal& operator[](unsigned int i);

	/** check whether a color is (close to) black */
	inline bool IsBlack() const;

public:

	// Red, green, blue and alpha color values 
	TReal r, g, b, a;
} PACK_STRUCT;  // !struct aiColor4D

typedef aiColor4t<float> aiColor4D;

#else

struct aiColor4D {
	float r, g, b, a;
} PACK_STRUCT;

#endif // __cplusplus

#include "./Compiler/poppack1.h"

#endif // AI_COLOR4D_H_INC
