AdventuresInLestoria/Adventures in Lestoria/Pixel.cpp

#pragma region License
/*
License (OLC-3)
~~~~~~~~~~~~~~~

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reproduced in the documentation and/or other materials provided with the distribution.

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be used to endorse or promote products derived from this software without specific
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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SHALL THE COPYRIGHT	HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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*/
#pragma endregion

#include "Pixel.h"
#include <utility>
#include <algorithm>

namespace olc{
	// O------------------------------------------------------------------------------O
	// | olc::Pixel IMPLEMENTATION                                                    |
	// O------------------------------------------------------------------------------O
	#if !defined(OLC_IGNORE_PIXEL)
	Pixel::Pixel()
	{ r = 0; g = 0; b = 0; a = nDefaultAlpha; }

	Pixel::Pixel(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
	{ n = red | (green << 8) | (blue << 16) | (alpha << 24); } // Thanks jarekpelczar 

	Pixel::Pixel(uint32_t hex)
	{ n=((hex&0xFF0000)>>16)|(hex&0x00FF00)|((hex&0x0000FF)<<16)|0xFF000000; }

	bool Pixel::operator==(const Pixel& p) const
	{ return n == p.n; }

	bool Pixel::operator!=(const Pixel& p) const
	{ return n != p.n; }

	Pixel  Pixel::operator * (const float i) const
	{
		float fR = std::min(255.0f, std::max(0.0f, float(r) * i));
		float fG = std::min(255.0f, std::max(0.0f, float(g) * i));
		float fB = std::min(255.0f, std::max(0.0f, float(b) * i));
		return Pixel(uint8_t(fR), uint8_t(fG), uint8_t(fB), a);
	}

	Pixel  Pixel::operator / (const float i) const
	{
		float fR = std::min(255.0f, std::max(0.0f, float(r) / i));
		float fG = std::min(255.0f, std::max(0.0f, float(g) / i));
		float fB = std::min(255.0f, std::max(0.0f, float(b) / i));
		return Pixel(uint8_t(fR), uint8_t(fG), uint8_t(fB), a);
	}

	Pixel& Pixel::operator *=(const float i)
	{
		this->r = uint8_t(std::min(255.0f, std::max(0.0f, float(r) * i)));
		this->g = uint8_t(std::min(255.0f, std::max(0.0f, float(g) * i)));
		this->b = uint8_t(std::min(255.0f, std::max(0.0f, float(b) * i)));
		return *this;
	}

	Pixel& Pixel::operator /=(const float i)
	{
		this->r = uint8_t(std::min(255.0f, std::max(0.0f, float(r) / i)));
		this->g = uint8_t(std::min(255.0f, std::max(0.0f, float(g) / i)));
		this->b = uint8_t(std::min(255.0f, std::max(0.0f, float(b) / i)));
		return *this;
	}

	Pixel  Pixel::operator + (const Pixel& p) const
	{
		uint8_t nR = uint8_t(std::min(255, std::max(0, int(r) + int(p.r))));
		uint8_t nG = uint8_t(std::min(255, std::max(0, int(g) + int(p.g))));
		uint8_t nB = uint8_t(std::min(255, std::max(0, int(b) + int(p.b))));
		return Pixel(nR, nG, nB, a);
	}

	Pixel  Pixel::operator - (const Pixel& p) const
	{
		uint8_t nR = uint8_t(std::min(255, std::max(0, int(r) - int(p.r))));
		uint8_t nG = uint8_t(std::min(255, std::max(0, int(g) - int(p.g))));
		uint8_t nB = uint8_t(std::min(255, std::max(0, int(b) - int(p.b))));
		return Pixel(nR, nG, nB, a);
	}

	Pixel& Pixel::operator += (const Pixel& p)
	{
		this->r = uint8_t(std::min(255, std::max(0, int(r) + int(p.r))));
		this->g = uint8_t(std::min(255, std::max(0, int(g) + int(p.g))));
		this->b = uint8_t(std::min(255, std::max(0, int(b) + int(p.b))));
		return *this;
	}

	Pixel& Pixel::operator -= (const Pixel& p) // Thanks Au Lit
	{
		this->r = uint8_t(std::min(255, std::max(0, int(r) - int(p.r))));
		this->g = uint8_t(std::min(255, std::max(0, int(g) - int(p.g))));
		this->b = uint8_t(std::min(255, std::max(0, int(b) - int(p.b))));
		return *this;
	}

	Pixel Pixel::operator * (const Pixel& p) const
	{
		uint8_t nR = uint8_t(std::min(255.0f, std::max(0.0f, float(r) * float(p.r) / 255.0f)));
		uint8_t nG = uint8_t(std::min(255.0f, std::max(0.0f, float(g) * float(p.g) / 255.0f)));
		uint8_t nB = uint8_t(std::min(255.0f, std::max(0.0f, float(b) * float(p.b) / 255.0f)));
		uint8_t nA = uint8_t(std::min(255.0f, std::max(0.0f, float(a) * float(p.a) / 255.0f)));
		return Pixel(nR, nG, nB, nA);
	}

	Pixel& Pixel::operator *=(const Pixel& p)
	{
		this->r = uint8_t(std::min(255.0f, std::max(0.0f, float(r) * float(p.r) / 255.0f)));
		this->g = uint8_t(std::min(255.0f, std::max(0.0f, float(g) * float(p.g) / 255.0f)));
		this->b = uint8_t(std::min(255.0f, std::max(0.0f, float(b) * float(p.b) / 255.0f)));
		this->a = uint8_t(std::min(255.0f, std::max(0.0f, float(a) * float(p.a) / 255.0f)));
		return *this;
	}

	Pixel Pixel::inv() const
	{
		uint8_t nR = uint8_t(std::min(255, std::max(0, 255 - int(r))));
		uint8_t nG = uint8_t(std::min(255, std::max(0, 255 - int(g))));
		uint8_t nB = uint8_t(std::min(255, std::max(0, 255 - int(b))));
		return Pixel(nR, nG, nB, a);
	}

	Pixel PixelF(float red, float green, float blue, float alpha)
	{ return Pixel(uint8_t(red * 255.0f), uint8_t(green * 255.0f), uint8_t(blue * 255.0f), uint8_t(alpha * 255.0f)); }

	Pixel PixelLerp(const olc::Pixel& p1, const olc::Pixel& p2, float t)
	{ return (p2 * t) + p1 * (1.0f - t); }

	Pixel PixelRaw(uint32_t n){
		Pixel newPixel{};
		newPixel.n=n;
		return newPixel;
	}

	#endif
}