genesis-3d_engine/Engine/addons/vegetation/VegetationServer.h

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#ifndef __VEGETATION_SERVER_H__
#define __VEGETATION_SERVER_H__
#include "vegetation/InstanceMap.h"
#include "vegetation/vegetation_fwd_decl.h"

namespace Vegetation
{
	/*! \class VegetationServer VegetationServer.h
	*  \brief  This is a class.
	*
	* for Serialization. !!!!
	* Do not create extern!!!!!
	*/
	class VegetationInstanceContainer: public Core::RefCounted, Serialization::ISerialize
	{
		__DeclareClass( VegetationInstanceContainer ); 

	public:

		VegetationInstanceContainer(){ };
		virtual ~VegetationInstanceContainer(){ };

		// @ISerialization::GetVersion. when change storage, must add SerializeSVersion count
		virtual Serialization::SVersion GetVersion() const;

		// @ISerialization::Load 
		virtual void Load( Serialization::SVersion ver, Serialization::SerializeReader* pReader, const Serialization::SerializationArgs* args );

		// @ISerialization::Save
		virtual void Save( Serialization::SerializeWriter* pWriter ) const;

		Util::Dictionary<Util::StringAtom, VegeInstanceMapPtr> mContainer;
	};

	/*! \class VegetationServer VegetationServer.h
	*  \brief  This is a class.
	*
	*  setup a thread for update vegetation render data
	*/
	class VegetationServer: public Core::RefCounted
	{
		__DeclareClass(VegetationServer);
		__DeclareImageSingleton(VegetationServer);

	public:

		VegetationServer();
		virtual ~VegetationServer();

		//-------------------------------manage template-----------------------------------------
		bool OpenTemplateFile( Util::String filePath = Util::String("asset:vegetation.veg") );

		void SaveTemplateFile( Util::String filePath = Util::String("asset:vegetation.veg") );

		VegeInstanceMapPtr CreateFromTemplate(const Util::StringAtom& tplname);
		VegeInstanceMapPtr CreateFromLast();

		SizeT GetTemplateCount(void) const;

		bool HasTemplate(const Util::StringAtom&) const;

		const VegeInstanceMapPtr& GetTemplate(IndexT index ) const;  

		const VegeInstanceMapPtr& FindTemplate(const Util::StringAtom& name) const;

		// add template . if exist, replace; Else add a new template.
		bool AddTemplate(const Util::StringAtom& tplname, const VegeInstanceMapPtr& instmap );

		// Remove template. 
		void RemoveTemplate( const Util::StringAtom& tplName );

		//-------------------------------manage active ParticleSystem -----------------------------------------
		SizeT GetActiveCount(void) const;

		void Update(void);

		void ClearActives();

	protected:
		void _attachVegetationInstMap( const VegeInstanceMapPtr& instmap );
		void _deattachVegetationInstMap( const VegeInstanceMapPtr& instmap );

	protected:

		GPtr<VegetationInstanceContainer> mTemplates;

		Util::Array<VegeInstanceMapPtr> mActives;

		friend class VegeInstanceMap;
	};

	//------------------------------------------------------------------------
	inline SizeT VegetationServer::GetTemplateCount(void) const
	{
		return mTemplates->mContainer.Size();
	}
	//------------------------------------------------------------------------
	inline bool VegetationServer::HasTemplate(const Util::StringAtom& name) const
	{
		return mTemplates->mContainer.FindIndex( name ) != InvalidIndex;
	}
	//------------------------------------------------------------------------
	inline const VegeInstanceMapPtr&  VegetationServer::GetTemplate(IndexT index ) const
	{
		if ( index >= 0 && index < mTemplates->mContainer.Size() )
		{
			return mTemplates->mContainer.ValueAtIndex( index );
		}
		else
		{
			return VegeInstanceMap::NullVegeInstMap;
		}
	}
	//------------------------------------------------------------------------
	inline const VegeInstanceMapPtr& VegetationServer::FindTemplate(const Util::StringAtom& name) const
	{
		IndexT findIndex = mTemplates->mContainer.FindIndex( name );
		return GetTemplate( findIndex );
	}
	//------------------------------------------------------------------------
	inline SizeT VegetationServer::GetActiveCount(void) const
	{
		return mActives.Size();
	}
}
#endif // __VEGETATION_SERVER_H__