OgreParticleSystemManager.h

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/*
-----------------------------------------------------------------------------
This source file is part of OGRE 
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2005 The OGRE Team
Also see acknowledgements in Readme.html

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 __ParticleSystemManager_H__
#define __ParticleSystemManager_H__


#include "OgrePrerequisites.h"
#include "OgreParticleSystem.h"
#include "OgreFrameListener.h"
#include "OgreSingleton.h"
#include "OgreIteratorWrappers.h"
#include "OgreScriptLoader.h"
#include "OgreResourceGroupManager.h"

namespace Ogre {

    // Forward decl
    class ParticleSystemFactory;
    
    class _OgreExport ParticleSystemManager: 
        public Singleton<ParticleSystemManager>, public ScriptLoader
    {
        friend class ParticleSystemFactory;
    public:
        typedef std::map<String, ParticleSystem*> ParticleTemplateMap;
        typedef std::map<String, ParticleAffectorFactory*> ParticleAffectorFactoryMap;
        typedef std::map<String, ParticleEmitterFactory*> ParticleEmitterFactoryMap;
        typedef std::map<String, ParticleSystemRendererFactory*> ParticleSystemRendererFactoryMap;
    protected:
        ParticleTemplateMap mSystemTemplates;
        
        ParticleEmitterFactoryMap mEmitterFactories;

        ParticleAffectorFactoryMap mAffectorFactories;

        ParticleSystemRendererFactoryMap mRendererFactories;

        StringVector mScriptPatterns;

        // Factory instance
        ParticleSystemFactory* mFactory;

        void parseNewEmitter(const String& type, DataStreamPtr& chunk, ParticleSystem* sys);
        void parseNewAffector(const String& type, DataStreamPtr& chunk, ParticleSystem* sys);
        void parseAttrib(const String& line, ParticleSystem* sys);
        void parseEmitterAttrib(const String& line, ParticleEmitter* sys);
        void parseAffectorAttrib(const String& line, ParticleAffector* sys);
        void skipToNextCloseBrace(DataStreamPtr& chunk);
        void skipToNextOpenBrace(DataStreamPtr& chunk);

        ParticleSystem* createSystemImpl(const String& name, size_t quota, 
            const String& resourceGroup);
        ParticleSystem* createSystemImpl(const String& name, const String& templateName);
        void destroySystemImpl(ParticleSystem* sys);
        
        
    public:

        ParticleSystemManager();
        virtual ~ParticleSystemManager();

        void addEmitterFactory(ParticleEmitterFactory* factory);

        void addAffectorFactory(ParticleAffectorFactory* factory);

        void addRendererFactory(ParticleSystemRendererFactory* factory);

        void addTemplate(const String& name, ParticleSystem* sysTemplate);

        ParticleSystem* createTemplate(const String& name, const String& resourceGroup);

        ParticleSystem* getTemplate(const String& name);

        ParticleEmitter* _createEmitter(const String& emitterType, ParticleSystem* psys);

        void _destroyEmitter(ParticleEmitter* emitter);

        ParticleAffector* _createAffector(const String& affectorType, ParticleSystem* psys);

        void _destroyAffector(ParticleAffector* affector);

        ParticleSystemRenderer* _createRenderer(const String& rendererType);

        void _destroyRenderer(ParticleSystemRenderer* renderer);

        bool frameStarted(const FrameEvent &evt);

        bool frameEnded(const FrameEvent &evt);

        void _initialise(void);

        const StringVector& getScriptPatterns(void) const;
        void parseScript(DataStreamPtr& stream, const String& groupName);
        Real getLoadingOrder(void) const;

        typedef MapIterator<ParticleAffectorFactoryMap> ParticleAffectorFactoryIterator;
        typedef MapIterator<ParticleEmitterFactoryMap> ParticleEmitterFactoryIterator;
        typedef MapIterator<ParticleSystemRendererFactoryMap> ParticleRendererFactoryIterator;
        ParticleAffectorFactoryIterator getAffectorFactoryIterator(void);
        ParticleEmitterFactoryIterator getEmitterFactoryIterator(void);
        ParticleRendererFactoryIterator getRendererFactoryIterator(void);


        typedef MapIterator<ParticleTemplateMap> ParticleSystemTemplateIterator;
        ParticleSystemTemplateIterator getTemplateIterator(void)
        {
            return ParticleSystemTemplateIterator(
                mSystemTemplates.begin(), mSystemTemplates.end());
        } 

        ParticleSystemFactory* _getFactory(void) { return mFactory; }
        
        static ParticleSystemManager& getSingleton(void);
        static ParticleSystemManager* getSingletonPtr(void);

    };

    class _OgreExport ParticleSystemFactory : public MovableObjectFactory
    {
    protected:
        MovableObject* createInstanceImpl(const String& name, const NameValuePairList* params);
    public:
        ParticleSystemFactory() {}
        ~ParticleSystemFactory() {}
        
        static String FACTORY_TYPE_NAME;

        const String& getType(void) const;
        void destroyInstance( MovableObject* obj);  

    };
    
}

#endif

---

Copyright © 2000-2005 by The OGRE Team

This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Mar 12 14:37:46 2006