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/*
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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

#ifdef __cplusplus
extern "C" {
#endif

#include "./Compiler/pushpack1.h"
// ----------------------------------------------------------------------------------
/** Represents a color in Red-Green-Blue space including an 
*   alpha component. Color values range from 0 to 1. */
// ----------------------------------------------------------------------------------
struct aiColor4D
{
#ifdef __cplusplus
	aiColor4D () : r(0.0f), g(0.0f), b(0.0f), a(0.0f) {}
	aiColor4D (float _r, float _g, float _b, float _a) 
		: r(_r), g(_g), b(_b), a(_a) {}
	aiColor4D (float _r) : r(_r), g(_r), b(_r), a(_r) {}
	aiColor4D (const aiColor4D& o) 
		: r(o.r), g(o.g), b(o.b), a(o.a) {}

	// combined operators
	const aiColor4D& operator += (const aiColor4D& o);
	const aiColor4D& operator -= (const aiColor4D& o);
	const aiColor4D& operator *= (float f);
	const aiColor4D& operator /= (float f);

	// comparison
	bool operator == (const aiColor4D& other) const;
	bool operator != (const aiColor4D& other) const;

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

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

#endif // !__cplusplus

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

#include "./Compiler/poppack1.h"
#ifdef __cplusplus
} // end extern "C"

#endif // __cplusplus
#endif // AI_VECTOR3D_H_INC