This class represents a collection of pages which make up a world. More...

#include <OgrePagedWorld.h>

Inheritance diagram for Ogre::PagedWorld:

Public Types
typedef std::map< String, PagedWorldSection * >	SectionMap

Public Member Functions
	PagedWorld (const String &name, PageManager *manager)
	Constructor.

virtual	~PagedWorld ()

virtual bool	_loadProceduralPage (Page page, PagedWorldSection section)
	Give a world the opportunity to prepare page content procedurally.

virtual bool	_prepareProceduralPage (Page page, PagedWorldSection section)
	Give a world the opportunity to prepare page content procedurally.

StreamSerialiser *	_readPageStream (PageID pageID, PagedWorldSection *section)
	Get a serialiser set up to read Page data for the given PageID.

virtual bool	_unloadProceduralPage (Page page, PagedWorldSection section)
	Give a world the opportunity to unload page content procedurally.

virtual bool	_unprepareProceduralPage (Page page, PagedWorldSection section)
	Give a world the opportunity to unprepare page content procedurally.

StreamSerialiser *	_writePageStream (PageID pageID, PagedWorldSection *section)
	Get a serialiser set up to read Page data for the given PageID.

PagedWorldSection *	createSection (const String &strategyName, SceneManager *sceneMgr, const String &sectionName=BLANKSTRING)
	Create a new manually defined section of the world.

PagedWorldSection *	createSection (PageStrategy strategy, SceneManager sceneMgr, const String &sectionName=BLANKSTRING)
	Create a manually defined new section of the world.

PagedWorldSection *	createSection (SceneManager *sceneMgr, const String &typeName, const String &sectionName=BLANKSTRING)
	Create a new section of the world based on a specialised type.

void	destroyAllSections ()
	Destroy all world sections.

void	destroySection (const String &name)
	Destroy a section of world.

void	destroySection (PagedWorldSection *sec)
	Destroy a section of world.

virtual void	frameEnd (Real timeElapsed)
	Called when the frame ends.

virtual void	frameStart (Real timeSinceLastFrame)
	Called when the frame starts.

PageManager *	getManager () const
	Get the manager of this world.

const String &	getName () const

PageProvider *	getPageProvider () const
	Get the PageProvider which can provide streams for Pages in this world.

PagedWorldSection *	getSection (const String &name)
	Retrieve a section of the world.

size_t	getSectionCount () const
	Get the number of sections this world has.

const SectionMap &	getSections () const
	Retrieve a const reference to all the sections in this world.

void	load (const DataStreamPtr &stream)
	Load world data from a stream.

void	load (const String &filename)
	Load world data from a file.

bool	load (StreamSerialiser &stream)
	Load world data from a serialiser (returns true if successful)

virtual void	notifyCamera (Camera *cam)
	Notify a world of the current camera.

void	save (const DataStreamPtr &stream)
	Save world data to a stream.

void	save (const String &filename)
	Save world data to a file.

void	save (StreamSerialiser &stream)
	Save world data to a serialiser.

void	setPageProvider (PageProvider *provider)
	Set the PageProvider which can provide streams for Pages in this world.

Static Public Attributes
static const uint32	CHUNK_ID

static const uint32	CHUNK_SECTIONDECLARATION_ID

static const uint16	CHUNK_VERSION

Detailed Description

This class represents a collection of pages which make up a world.

It's important to bear in mind that the PagedWorld only delineates the world and knows how to find out about the contents of it. It does not, by design, contain all elements of the world, in memory, at once.

Member Typedef Documentation

◆ SectionMap

typedef std::map<String, PagedWorldSection*> Ogre::PagedWorld::SectionMap

Constructor & Destructor Documentation

◆ PagedWorld()

Ogre::PagedWorld::PagedWorld	(	const String &	name,
		PageManager *	manager
	)

Constructor.

Parameters

name	The name of the world, which must be enough to identify the place where data for it can be loaded from (doesn't have to be a filename necessarily).
manager	The PageManager that is in charge of providing this world with services such as related object factories.

◆ ~PagedWorld()

virtual Ogre::PagedWorld::~PagedWorld ( )

virtual

Member Function Documentation

◆ getName()

const String & Ogre::PagedWorld::getName ( ) const

inline

◆ getManager()

PageManager * Ogre::PagedWorld::getManager ( ) const

inline

Get the manager of this world.

◆ load() [1/3]

void Ogre::PagedWorld::load ( const String & filename )

Load world data from a file.

◆ load() [2/3]

void Ogre::PagedWorld::load ( const DataStreamPtr & stream )

Load world data from a stream.

◆ load() [3/3]

bool Ogre::PagedWorld::load ( StreamSerialiser & stream )

Load world data from a serialiser (returns true if successful)

◆ save() [1/3]

void Ogre::PagedWorld::save ( const String & filename )

Save world data to a file.

Parameters

filename The name of the file to create; this can either be an absolute filename or

◆ save() [2/3]

void Ogre::PagedWorld::save ( const DataStreamPtr & stream )

Save world data to a stream.

◆ save() [3/3]

void Ogre::PagedWorld::save ( StreamSerialiser & stream )

Save world data to a serialiser.

◆ createSection() [1/3]

PagedWorldSection * Ogre::PagedWorld::createSection	(	SceneManager *	sceneMgr,
		const String &	typeName,
		const String &	sectionName = `BLANKSTRING`
	)

Create a new section of the world based on a specialised type.

World sections are areas of the world that use a particular PageStrategy, with a certain set of parameters specific to that strategy, and potentially some other rules. So you would have more than one section in a world only if you needed different simultaneous paging strategies, or you wanted the same strategy but parameterised differently.

Parameters

sceneMgr	The SceneManager to use for this section.
typeName	The type of section to use (must be registered with PageManager), or blank to use the default type (simple grid)
sectionName	An optional name to give the section (if none is provided, one will be generated)

◆ createSection() [2/3]

PagedWorldSection * Ogre::PagedWorld::createSection	(	const String &	strategyName,
		SceneManager *	sceneMgr,
		const String &	sectionName = `BLANKSTRING`
	)

Create a new manually defined section of the world.

World sections are areas of the world that use a particular PageStrategy, with a certain set of parameters specific to that strategy. So you would have more than one section in a world only if you needed different simultaneous paging strategies, or you wanted the same strategy but parameterised differently.

Parameters

strategyName	The name of the strategy to use (must be registered with PageManager)
sceneMgr	The SceneManager to use for this section
sectionName	An optional name to give the section (if none is provided, one will be generated)

◆ createSection() [3/3]

PagedWorldSection * Ogre::PagedWorld::createSection	(	PageStrategy *	strategy,
		SceneManager *	sceneMgr,
		const String &	sectionName = `BLANKSTRING`
	)

Create a manually defined new section of the world.

World sections are areas of the world that use a particular PageStrategy, with a certain set of parameters specific to that strategy. So you would have more than one section in a world only if you needed different simultaneous paging strategies, or you wanted the same strategy but parameterised differently.

Parameters

strategy	The strategy to use
sceneMgr	The SceneManager to use for this section
sectionName	An optional name to give the section (if none is provided, one will be generated)

◆ destroySection() [1/2]

void Ogre::PagedWorld::destroySection ( const String & name )

Destroy a section of world.

◆ destroySection() [2/2]

void Ogre::PagedWorld::destroySection ( PagedWorldSection * sec )

Destroy a section of world.

◆ destroyAllSections()

void Ogre::PagedWorld::destroyAllSections ( )

Destroy all world sections.

◆ getSectionCount()

size_t Ogre::PagedWorld::getSectionCount ( ) const

inline

Get the number of sections this world has.

◆ getSection()

PagedWorldSection * Ogre::PagedWorld::getSection ( const String & name )

Retrieve a section of the world.

◆ getSections()

const SectionMap & Ogre::PagedWorld::getSections ( ) const

inline

Retrieve a const reference to all the sections in this world.

◆ setPageProvider()

void Ogre::PagedWorld::setPageProvider ( PageProvider * provider )

inline

Set the PageProvider which can provide streams for Pages in this world.

This is the top-level way that you can direct how Page data is loaded. When data for a Page is requested for a PagedWorldSection, the following sequence of classes will be checked to see if they have a provider willing to supply the stream: PagedWorldSection, PagedWorld, PageManager. If none of these do, then the default behaviour is to look for a file called worldname_sectionname_pageID.page.

Note: The caller remains responsible for the destruction of the provider.

◆ getPageProvider()

PageProvider * Ogre::PagedWorld::getPageProvider ( ) const

inline

Get the PageProvider which can provide streams for Pages in this world.

◆ _prepareProceduralPage()

virtual bool Ogre::PagedWorld::_prepareProceduralPage	(	Page *	page,
		PagedWorldSection *	section
	)

virtual

Give a world the opportunity to prepare page content procedurally.

You should not call this method directly. This call may well happen in a separate thread so it should not access GPU resources, use _loadProceduralPage for that

Returns: true if the page was populated, false otherwise

◆ _loadProceduralPage()

virtual bool Ogre::PagedWorld::_loadProceduralPage	(	Page *	page,
		PagedWorldSection *	section
	)

virtual

Give a world the opportunity to prepare page content procedurally.

You should not call this method directly. This call will happen in the main render thread so it can access GPU resources. Use _prepareProceduralPage for background preparation.

Returns: true if the page was populated, false otherwise

◆ _unloadProceduralPage()

virtual bool Ogre::PagedWorld::_unloadProceduralPage	(	Page *	page,
		PagedWorldSection *	section
	)

virtual

Give a world the opportunity to unload page content procedurally.

You should not call this method directly. This call will happen in the main render thread so it can access GPU resources. Use _unprepareProceduralPage for background preparation.

Returns: true if the page was populated, false otherwise

◆ _unprepareProceduralPage()

virtual bool Ogre::PagedWorld::_unprepareProceduralPage	(	Page *	page,
		PagedWorldSection *	section
	)

virtual

Give a world the opportunity to unprepare page content procedurally.

You should not call this method directly. This call may well happen in a separate thread so it should not access GPU resources, use _unloadProceduralPage for that

Returns: true if the page was unpopulated, false otherwise

◆ _readPageStream()

StreamSerialiser * Ogre::PagedWorld::_readPageStream	(	PageID	pageID,
		PagedWorldSection *	section
	)

Get a serialiser set up to read Page data for the given PageID.

Parameters

pageID	The ID of the page being requested
section	The parent section to which this page will belong

The StreamSerialiser returned is the responsibility of the caller to delete.

◆ _writePageStream()

StreamSerialiser * Ogre::PagedWorld::_writePageStream	(	PageID	pageID,
		PagedWorldSection *	section
	)

Get a serialiser set up to read Page data for the given PageID.

Parameters

pageID	The ID of the page being requested
section	The parent section to which this page will belong

The StreamSerialiser returned is the responsibility of the caller to delete.

◆ frameStart()

virtual void Ogre::PagedWorld::frameStart ( Real timeSinceLastFrame )

virtual

Called when the frame starts.

◆ frameEnd()

virtual void Ogre::PagedWorld::frameEnd ( Real timeElapsed )

virtual

Called when the frame ends.

◆ notifyCamera()

virtual void Ogre::PagedWorld::notifyCamera ( Camera * cam )

virtual

Notify a world of the current camera.

Member Data Documentation

◆ CHUNK_ID

const uint32 Ogre::PagedWorld::CHUNK_ID

static

◆ CHUNK_VERSION

const uint16 Ogre::PagedWorld::CHUNK_VERSION

static

◆ CHUNK_SECTIONDECLARATION_ID

const uint32 Ogre::PagedWorld::CHUNK_SECTIONDECLARATION_ID

static

The documentation for this class was generated from the following file:

OgrePagedWorld.h

Public Types

Public Member Functions

Static Public Attributes

Detailed Description

Member Typedef Documentation

◆ SectionMap

Constructor & Destructor Documentation

◆ PagedWorld()

◆ ~PagedWorld()

Member Function Documentation

◆ getName()

◆ getManager()

◆ load() [1/3]

◆ load() [2/3]

◆ load() [3/3]

◆ save() [1/3]

◆ save() [2/3]

◆ save() [3/3]

◆ createSection() [1/3]

◆ createSection() [2/3]

◆ createSection() [3/3]

◆ destroySection() [1/2]

◆ destroySection() [2/2]

◆ destroyAllSections()

◆ getSectionCount()

◆ getSection()

◆ getSections()

◆ setPageProvider()

◆ getPageProvider()

◆ _prepareProceduralPage()

◆ _loadProceduralPage()

◆ _unloadProceduralPage()

◆ _unprepareProceduralPage()

◆ _readPageStream()

◆ _writePageStream()

◆ frameStart()

◆ frameEnd()

◆ notifyCamera()

Member Data Documentation

◆ CHUNK_ID

◆ CHUNK_VERSION

◆ CHUNK_SECTIONDECLARATION_ID