DataManager.h

Go to the documentation of this file.

/*
--------------------------------------------------------------------------------
This source file is part of SkyX.
Visit http://www.paradise-studios.net/products/skyx/

Copyright (C) 2009-2012 Xavier Verguín González <xavyiy@gmail.com>

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.
--------------------------------------------------------------------------------
*/

#ifndef _SkyX_VClouds_DataManager_H_
#define _SkyX_VClouds_DataManager_H_

#include <vector>
#include "Prerequisites.h"

#include "VClouds/FastFakeRandom.h"

namespace SkyX { namespace VClouds {

  class VClouds;
  class Ellipsoid;

  class DllExport DataManager
  {
    public:
      struct Cell
      {
        bool hum, act, cld;

        float phum, pext, pact;

        float dens;

        float light;
      };

      enum VolTextureId
      {
        VOL_TEX0 = 0,
        VOL_TEX1 = 1
      };

      DataManager(VClouds *vc);

      ~DataManager();

      void create(const int& nx, const int& ny, const int& nz);

      void update(const Ogre::Real &timeSinceLastFrame);

      void remove();

      inline const bool& isCreated() const
      {
        return mCreated;
      }

      inline void setUpdateTime(const float& UpdateTime)
      {
        mUpdateTime = UpdateTime;
      }

      inline const Ogre::Real& getUpdateTime() const
      {
        return mUpdateTime;
      }

      inline const Ogre::Real _getInterpolation() const
      {
        return mCurrentTransition/mUpdateTime;
      }

      void setWheater(const float& Humidity, const float& AverageCloudsSize,
          const bool& delayedResponse = true);

      void addEllipsoid(Ellipsoid *e, const bool& UpdateProbabilities = true);

      void forceToUpdateData();

    private:

      void _initData(const int& nx, const int& ny, const int& nz);

      Cell *** _create3DCellArray(const int& nx, const int& ny, const int& nz,
                                  const bool& init = true);

      void _delete3DCellArray(Cell ***c, const int& nx, const int& ny);

      void _copy3DCellArraysData(Cell ***src, Cell ***dest, const int& nx,
                                 const int& ny, const int& nz);

      void _performCalculations(const int& nx, const int& ny, const int& nz,
                                const int& step, const int& xStart,
                                const int& xEnd);

      void _updateVolTextureData(Cell ***c, const VolTextureId& TexId,
          const int& nx, const int& ny, const int& nz);

      float _getDensityAt(Cell ***c, const int& nx, const int& ny,
          const int& nz, const int& x, const int& y, const int& z,
          const int& r, const float& strength) const;

      float _getDensityAt(Cell ***c, const int& x, const int& y,
          const int& z) const;

      bool _fact(Cell ***c, const int& nx, const int& ny,
          const int& nz, const int& x, const int& y, const int& z) const;

      void _clearProbabilities(Cell*** c, const int& nx, const int& ny,
          const int& nz, const bool& clearData);

      void _updateProbabilities(Cell*** c, const int& nx, const int& ny,
          const int& nz, const bool& delayedResponse);

      Ogre::Real _getLightAbsorcionAt(Cell*** c, const int& nx,
          const int& ny, const int& nz,
          const int& x, const int& y,
          const int& z, const Ogre::Vector3& d,
          const float& att) const;

      void _createVolTexture(const VolTextureId& TexId, const int& nx,
          const int& ny, const int& nz);

      VClouds *mVClouds;

      Cell ***mCellsCurrent, ***mCellsTmp;

      FastFakeRandom *mFFRandom;

      int mNx, mNy, mNz;

      float mCurrentTransition;
      float mUpdateTime;
      int mStep, mXStart, mXEnd;

      int mMaxNumberOfClouds;

      Ogre::TexturePtr mVolTextures[2];

      bool mVolTexToUpdate;

      bool mCreated;

      std::vector<Ellipsoid*> mEllipsoids;
  };
}}

#endif