Perlin 2,3,4 optimisations + Simplex imp fixed + improved architecture

src/Nazara/Noise/ComplexNoiseBase.cpp

@@ -0,0 +1,61 @@
+#include "ComplexNoiseBase.hpp"
+#include <cmath>
+
+NzComplexNoiseBase::NzComplexNoiseBase()
+{
+    m_parametersModified = true;
+    m_lacunarity = 5.0f;
+    m_hurst = 1.2f;
+    m_octaves = 3.0f;
+}
+
+void NzComplexNoiseBase::SetLacunarity(float lacunarity)
+{
+    if(lacunarity != m_lacunarity)
+    {
+        m_lacunarity = lacunarity;
+        m_parametersModified = true;
+    }
+}
+
+void NzComplexNoiseBase::SetHurstParameter(float h)
+{
+    if(h != m_hurst)
+    {
+        m_hurst = h;
+        m_parametersModified = true;
+    }
+}
+
+void NzComplexNoiseBase::SetOctavesNumber(float octaves)
+{
+    if(octaves != m_octaves && octaves < 30)
+    {
+        m_octaves = octaves;
+        m_parametersModified = true;
+    }
+}
+
+void NzComplexNoiseBase::RecomputeExponentArray()
+{
+    if(m_parametersModified)
+    {
+        float frequency = 1.0;
+        m_sum = 0.f;
+        for (int i(0) ; i < m_octaves; ++i)
+        {
+            exponent_array[i] = std::pow( frequency, -m_hurst );
+            frequency *= m_lacunarity;
+
+            m_sum += exponent_array[i];
+
+        }
+        m_parametersModified = false;
+    }
+}
+
+
+NzComplexNoiseBase::~NzComplexNoiseBase()
+{
+    //dtor
+}