d0545eb760
*Seed is uint instead of int *Permutation table is uint instead of int, could lead before to program crash with negative seeds Former-commit-id: 49ad04987a09a5f5b4bcab6ee3916db9818172b6
43 lines
852 B
C++
43 lines
852 B
C++
// Copyright (C) 2012 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 NOISEBASE_HPP
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#define NOISEBASE_HPP
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#include <Nazara/Prerequesites.hpp>
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enum nzNoises
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{
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PERLIN,
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SIMPLEX,
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CELL
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};
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class NAZARA_API NzNoiseBase
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{
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public:
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NzNoiseBase(unsigned int seed = 0);
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~NzNoiseBase() = default;
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void SetNewSeed(unsigned int seed);
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void ShufflePermutationTable();
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unsigned int GetUniformRandomValue();
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int fastfloor(float n);
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int JenkinsHash(int a, int b, int c);
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protected:
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unsigned int perm[512];
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private:
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unsigned int Ua, Uc, Um;
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unsigned int UcurrentSeed;
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unsigned int Uprevious, Ulast;
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};
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#endif // NOISEBASE_HPP
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