NzNoise new architecture + Perlin 1D algorithm modified

src/Nazara/Noise/NoiseBase.cpp

@@ -0,0 +1,60 @@
+// Copyright (C) 2012 Rémi Bèges
+// This file is part of the "Nazara Engine".
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include "NoiseBase.hpp"
+//#include <Nazara/Noise/NoiseBase.hpp>
+//#include <Nazara/Noise/Error.hpp>
+//#include <Nazara/Noise/Config.hpp>
+//#include <Nazara/Noise/Debug.hpp>
+
+NzNoiseBase::NzNoiseBase(int seed)
+{
+    Ua = 16807;
+    Uc = 0;
+    Um = 2147483647;
+    UcurrentSeed = 0;
+    Uprevious = 0;
+
+    SetNewSeed(seed);
+
+    for(int i(0) ; i < 256 ; i++)
+        perm[i] = i;
+
+}
+
+void NzNoiseBase::SetNewSeed(int seed)
+{
+    Uprevious = seed;
+    UcurrentSeed = seed;
+}
+
+int NzNoiseBase::GetUniformRandomValue()
+{
+    Ulast = Ua*Uprevious + Uc%Um;
+    Uprevious = Ulast;
+    return Ulast;
+}
+
+void NzNoiseBase::ShufflePermutationTable()
+{
+    int xchanger;
+    unsigned int ncase;
+
+    for(int j(0) ; j < 10 ; ++j)
+        for (int i(0); i < 256 ; ++i)
+        {
+            ncase = this->GetUniformRandomValue() & 255;
+            xchanger = perm[i];
+            perm[i] = perm[ncase];
+            perm[ncase] = xchanger;
+        }
+
+    for(int i(256) ; i < 512; ++i)
+        perm[i] = perm[i & 255];
+}
+
+NzNoiseBase::~NzNoiseBase()
+{
+    //dtor
+}