Suppressed perlin1d, added perlin 2,3,4 and simplex 2 classes + minor

fixes/optimisations on noisemachine

include/Nazara/Noise/Simplex2D.hpp

@@ -0,0 +1,43 @@
+// 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
+
+#pragma once
+
+#ifndef SIMPLEX2D_H
+#define SIMPLEX2D_H
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Noise/NoiseBase.hpp>
+#include <Nazara/Math/Vector2.hpp>
+
+
+template <typename T> class NzSimplex2D : public NzNoiseBase
+{
+    public:
+        NzSimplex2D();
+        T GetValue(T x, T y, T res);
+        ~NzSimplex2D() = default;
+    protected:
+    private:
+        int ii,jj;
+        int gi0,gi1,gi2;
+        NzVector2i Origin,off1;
+        T n1,n2,n3;
+        T c1,c2,c3;
+        T gradient2[8][2];
+        T UnskewCoeff2D;
+        T SkewCoeff2D;
+        NzVector2<T> A, IsoOriginDist;
+        NzVector2<T> d1,d2,d3;
+
+
+};
+
+typedef NzSimplex2D<float>  NzSimplex2Df;
+typedef NzSimplex2D<double> NzSimplex2Dd;
+
+#include <Nazara/Noise/Simplex2D.inl>
+
+#endif // SIMPLEX2D_H
+