Lightning.h

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/*
--------------------------------------------------------------------------------
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_Lightning_H_
#define _SkyX_VClouds_Lightning_H_
 
#include "Prerequisites.h"
 
namespace SkyX { namespace VClouds{
 
    class Lightning
    {
    public:
        struct Segment
        {
        public:
            Segment()
                : a(Ogre::Vector3())
                , b(Ogre::Vector3())
            {
            }
 
            Segment(const Ogre::Vector3& a_, const Ogre::Vector3& b_)
                : a(a_)
                , b(b_)
            {
            }
 
            Ogre::Vector3 a;
            Ogre::Vector3 b;
        };
 
        Lightning(Ogre::SceneManager* sm, Ogre::SceneNode* sn, const Ogre::Vector3& orig, const Ogre::Vector3& dir, const Ogre::Real& l, 
            const Ogre::uint32& d, const Ogre::uint32& rec, const Ogre::Real& tm,  const Ogre::Real& wm, const Ogre::Vector2& b = Ogre::Vector2(0,1));
 
        ~Lightning();
 
        void create();
 
        void remove();
 
        void update(Ogre::Real timeSinceLastFrame);
 
        inline const Ogre::Vector3& getDirection() const
        {
            return mDirection;
        }
 
        inline const Ogre::Real& getLength() const
        {
            return mLength;
        }
 
        inline const Ogre::Real& getIntensity() const
        {
            return mIntensity;
        }
 
        inline Ogre::BillboardSet* getBillboardSet() const
        {
            return mBillboardSet;
        }
 
        inline Ogre::SceneNode* getSceneNode() const
        {
            return mSceneNode;
        }
 
        inline const bool& isFinished() const
        {
            return mFinished;
        }
 
        void _updateRenderQueueGroup(const Ogre::uint8& rqg);
 
    private:
        void _updateData(const Ogre::Real& alpha, const Ogre::Real& currentPos, const Ogre::Real& parentTime);
 
        Ogre::Vector3 mOrigin;
        Ogre::Vector3 mDirection;
        Ogre::Real mLength;
 
        Ogre::Real mRealLength;
        Ogre::uint32 mDivisions;
        Ogre::uint32 mRecursivity;
        Ogre::Real mWidthMultiplier;
        Ogre::Vector2 mBounds;
        Ogre::Vector2 mAngleRange;
 
        Ogre::Real mTime;
        Ogre::Real mTimeMultiplier;
        Ogre::Vector3 mTimeMultipliers;
 
        Ogre::Real mIntensity;
 
        std::vector<Segment> mSegments;
        std::vector<Lightning*> mChildren;
 
        Ogre::BillboardSet* mBillboardSet;
        Ogre::SceneManager* mSceneManager;
        Ogre::SceneNode* mSceneNode;
 
        bool mCreated;
        bool mFinished;
    };
 
}}
 
#endif