43 lines
938 B
C++
43 lines
938 B
C++
// Copyright (C) 2015 Rémi Bèges
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// This file is part of the "Nazara Engine - Noise module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef SIMPLEX2D_HPP
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#define SIMPLEX2D_HPP
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#include <Nazara/Prerequesites.hpp>
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#include <Nazara/Noise/NoiseBase.hpp>
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#include <Nazara/Noise/Abstract2DNoise.hpp>
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#include <Nazara/Math/Vector2.hpp>
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namespace Nz
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{
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class NAZARA_NOISE_API Simplex2D : public Abstract2DNoise
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{
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public:
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Simplex2D();
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Simplex2D(unsigned int seed);
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virtual ~Simplex2D() = default;
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float GetValue(float x, float y, float resolution);
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private:
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int ii,jj;
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int gi0,gi1,gi2;
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Vector2i skewedCubeOrigin,off1;
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float n1,n2,n3;
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float c1,c2,c3;
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float gradient2[8][2];
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float UnskewCoeff2D;
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float SkewCoeff2D;
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float sum;
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Vector2<float> unskewedCubeOrigin, unskewedDistToOrigin;
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Vector2<float> d1,d2,d3;
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};
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}
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#endif // SIMPLEX2D_HPP
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