Replaced templates by float

*Since only valid template parameters were float and double, the whole
template aspect has been removed.
Double precision would only be used in extremely rare occasions
(applications needing high precision and slow performances), it is not
relevant to template the whole module for it.


Former-commit-id: fc6dd028189c608a6a7b4c312b3e5e3f53a01fd7

src/Nazara/Noise/FBM2D.cpp

@@ -0,0 +1,62 @@
+// 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 <Nazara/Core/Error.hpp>
+#include <Nazara/Noise/Config.hpp>
+#include <Nazara/Noise/FBM2D.hpp>
+#include <Nazara/Noise/Perlin2D.hpp>
+#include <Nazara/Noise/Simplex2D.hpp>
+#include <Nazara/Noise/Debug.hpp>
+
+NzFBM2D::NzFBM2D(nzNoises source, int seed)
+{
+    switch(source)
+    {
+        case PERLIN:
+            m_source = new NzPerlin2D();
+        break;
+
+        default:
+            m_source = new NzSimplex2D();
+        break;
+    }
+    m_source->SetNewSeed(seed);
+    m_source->ShufflePermutationTable();
+    m_noiseType = source;
+}
+
+float NzFBM2D::GetValue(float x, float y, float resolution)
+{
+    this->RecomputeExponentArray();
+
+    m_value = 0.0;
+
+    for (int i(0); i < this->m_octaves; ++i)
+    {
+        m_value += m_source->GetValue(x,y,resolution) * this->exponent_array[i];
+        resolution *= this->m_lacunarity;
+    }
+    //cout<<m_value<<endl;//"|"<<this->m_sum<<endl;
+    //m_remainder = this->m_octaves - static_cast<int>(this->m_octaves);
+
+    //if(!NzNumberEquals(remainder, static_cast<float>(0.0)))
+      //  m_value += remainder * Get2DSimplexNoiseValue(x,y,resolution) * exponent_array[(int)m_octaves-1];
+
+    //0.65 is an experimental value to make the noise stick closer to [-1 , 1]
+    return m_value / (this->m_sum * 0.65);
+}
+
+NzFBM2D::~NzFBM2D()
+{
+    switch(m_noiseType)
+    {
+        case PERLIN:
+            delete dynamic_cast<NzPerlin2D*>(m_source);
+        break;
+
+        default:
+            delete dynamic_cast<NzSimplex2D*>(m_source);
+        break;
+    }
+}