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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _COLOR_H
#define _COLOR_H
#include <cinttypes>
#include "System/creg/creg_cond.h"
/**
* A 32bit RGBA color.
*/
struct SColor
{
CR_DECLARE_STRUCT(SColor)
SColor() : r(255), g(255), b(255), a(255) {}
/// Initialize with values in the range [0, 255]
SColor(const std::uint8_t r, const std::uint8_t g, const std::uint8_t b, const std::uint8_t a = 255)
: r(r), g(g), b(b), a(a) {}
/// Initialize with values in the range [0, 255]
SColor(const int r, const int g, const int b, const int a = 255)
: r(r), g(g), b(b), a(a) {}
/// Initialize with values in the range [0.0, 1.0]
SColor(const float r, const float g, const float b, const float a = 1.0f)
: r((unsigned char)(r * 255.0f))
, g((unsigned char)(g * 255.0f))
, b((unsigned char)(b * 255.0f))
, a((unsigned char)(a * 255.0f))
{}
SColor(const float* f)
: r(f[0] * 255.0f)
, g(f[1] * 255.0f)
, b(f[2] * 255.0f)
, a(f[3] * 255.0f)
{}
constexpr SColor(const unsigned char* u)
: r(u[0])
, g(u[1])
, b(u[2])
, a(u[3])
{}
SColor operator * (const float s) const {
return SColor(int(float(r) * s), int(float(g) * s), int(float(b) * s), int(float(a) * s));
}
operator const unsigned char* () const { return &r; }
operator unsigned char* () { return &r; }
public:
union {
/// individual color channel values in the range [0, 255]
struct { std::uint8_t r, g, b, a; };
/// The color as a single 32bit value
std::uint32_t i;
};
};
#endif // _COLOR_H
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