48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
// Copyright (C) 2017 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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#ifndef NAZARA_NOISEBASE_HPP
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#define NAZARA_NOISEBASE_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/Math/Vector2.hpp>
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#include <Nazara/Math/Vector3.hpp>
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#include <Nazara/Math/Vector4.hpp>
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#include <Nazara/Noise/Config.hpp>
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#include <array>
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#include <random>
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namespace Nz
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{
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class NAZARA_NOISE_API NoiseBase
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{
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public:
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NoiseBase(unsigned int seed = 0);
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virtual ~NoiseBase() = default;
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virtual float Get(float x, float y, float scale) const = 0;
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virtual float Get(float x, float y, float z, float scale) const = 0;
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virtual float Get(float x, float y, float z, float w, float scale) const = 0;
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float GetScale();
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void SetScale(float scale);
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void SetSeed(unsigned int seed);
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void Shuffle();
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protected:
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std::array<std::size_t, 3 * 256> m_permutations;
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float m_scale;
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static std::array<Vector2f, 2 * 2 * 2> s_gradients2;
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static std::array<Vector3f, 2 * 2 * 2 * 2> s_gradients3;
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static std::array<Vector4f, 2 * 2 * 2 * 2 * 2> s_gradients4;
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private:
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std::mt19937 m_randomEngine;
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};
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}
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#endif // NAZARA_NOISEBASE_HPP
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