Panda3D
 All Classes Functions Variables Enumerations
stackedPerlinNoise2.h
00001 // Filename: stackedPerlinNoise2.h
00002 // Created by:  drose (05Oct05)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef STACKEDPERLINNOISE2_H
00016 #define STACKEDPERLINNOISE2_H
00017 
00018 #include "pandabase.h"
00019 #include "perlinNoise2.h"
00020 #include "pvector.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : StackedPerlinNoise2
00024 // Description : Implements a multi-layer PerlinNoise, with one or
00025 //               more high-frequency noise functions added to a
00026 //               lower-frequency base noise function.
00027 ////////////////////////////////////////////////////////////////////
00028 class EXPCL_PANDA_MATHUTIL StackedPerlinNoise2 {
00029 PUBLISHED:
00030   INLINE StackedPerlinNoise2();
00031   StackedPerlinNoise2(double sx, double sy, int num_levels = 2,
00032                       double scale_factor = 4.0f, double amp_scale = 0.5f,
00033                       int table_size = 256, unsigned long seed = 0);
00034   StackedPerlinNoise2(const StackedPerlinNoise2 &copy);
00035   void operator = (const StackedPerlinNoise2 &copy);
00036 
00037   void add_level(const PerlinNoise2 &level, double amp = 1.0);
00038   void clear();
00039 
00040   INLINE double noise(double x, double y);
00041   INLINE float noise(const LVecBase2f &value);
00042   double noise(const LVecBase2d &value);
00043 
00044   INLINE double operator ()(double x, double y);
00045   INLINE float operator ()(const LVecBase2f &value);
00046   INLINE double operator ()(const LVecBase2d &value);
00047 
00048 private:
00049   class Noise {
00050   public:
00051     PerlinNoise2 _noise;
00052     double _amp;
00053   };
00054 
00055   typedef pvector<Noise> Noises;
00056   Noises _noises;
00057 };
00058 
00059 #include "stackedPerlinNoise2.I"
00060 
00061 #endif
00062 
 All Classes Functions Variables Enumerations