Ogre::IntersectionSceneQuery Class Reference
[Scene]

Separate SceneQuery class to query for pairs of objects which are possibly intersecting one another. More...

#include <OgreSceneQuery.h>

Inheritance diagram for Ogre::IntersectionSceneQuery:

[legend]

Public Types
enum	WorldFragmentType { WFT_NONE, WFT_PLANE_BOUNDED_REGION, WFT_SINGLE_INTERSECTION, WFT_CUSTOM_GEOMETRY, WFT_RENDER_OPERATION }
	This type can be used by collaborating applications & SceneManagers to agree on the type of world geometry to be returned from queries. More...
Public Member Functions
	IntersectionSceneQuery (SceneManager *mgr)
virtual	~IntersectionSceneQuery ()
virtual IntersectionSceneQueryResult &	execute (void)
	Executes the query, returning the results back in one list.
virtual void	execute (IntersectionSceneQueryListener *listener)=0
	Executes the query and returns each match through a listener interface.
virtual IntersectionSceneQueryResult &	getLastResults (void) const
	Gets the results of the last query that was run using this object, provided the query was executed using the collection-returning version of execute.
virtual void	clearResults (void)
	Clears the results of the last query execution.
bool	queryResult (MovableObject first, MovableObject second)
	Self-callback in order to deal with execute which returns collection.
bool	queryResult (MovableObject movable, SceneQuery::WorldFragment fragment)
	Self-callback in order to deal with execute which returns collection.
virtual void	setQueryMask (uint32 mask)
	Sets the mask for results of this query.
virtual uint32	getQueryMask (void) const
	Returns the current mask for this query.
virtual void	setQueryTypeMask (uint32 mask)
	Sets the type mask for results of this query.
virtual uint32	getQueryTypeMask (void) const
	Returns the current mask for this query.
virtual void	setWorldFragmentType (enum WorldFragmentType wft)
	Tells the query what kind of world geometry to return from queries; often the full renderable geometry is not what is needed.
virtual WorldFragmentType	getWorldFragmentType (void) const
	Gets the current world fragment types to be returned from the query.
virtual const set < WorldFragmentType >::type *	getSupportedWorldFragmentTypes (void) const
	Returns the types of world fragments this query supports.
void *	operator new (size_t sz, const char file, int line, const char func)
	operator new, with debug line info
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *ptr)
	placement operator new
void *	operator new[] (size_t sz, const char file, int line, const char func)
	array operator new, with debug line info
void *	operator new[] (size_t sz)
void	operator delete (void *ptr)
void	operator delete (void ptr, void )
void	operator delete (void ptr, const char , int, const char *)
void	operator delete[] (void *ptr)
void	operator delete[] (void ptr, const char , int, const char *)
Protected Attributes
IntersectionSceneQueryResult *	mLastResult
SceneManager *	mParentSceneMgr
uint32	mQueryMask
uint32	mQueryTypeMask
set< WorldFragmentType >::type	mSupportedWorldFragments
WorldFragmentType	mWorldFragmentType

Detailed Description

Separate SceneQuery class to query for pairs of objects which are possibly intersecting one another.

Remarks:: This SceneQuery subclass considers the whole world and returns pairs of objects which are close enough to each other that they may be intersecting. Because of this slightly different focus, the return types and listener interface are different for this class.

Definition at line 511 of file OgreSceneQuery.h.

Member Enumeration Documentation

enum Ogre::SceneQuery::WorldFragmentType [inherited]

This type can be used by collaborating applications & SceneManagers to agree on the type of world geometry to be returned from queries.

Not all these types will be supported by all SceneManagers; once the application has decided which SceneManager specialisation to use, it is expected that it will know which type of world geometry abstraction is available to it.

Enumerator:

WFT_NONE	Return no world geometry hits at all.
WFT_PLANE_BOUNDED_REGION	Return pointers to convex plane-bounded regions.
WFT_SINGLE_INTERSECTION	Return a single intersection point (typically RaySceneQuery only).
WFT_CUSTOM_GEOMETRY	Custom geometry as defined by the SceneManager.
WFT_RENDER_OPERATION	General RenderOperation structure.

Definition at line 82 of file OgreSceneQuery.h.

Constructor & Destructor Documentation

Ogre::IntersectionSceneQuery::IntersectionSceneQuery ( SceneManager * mgr )

virtual Ogre::IntersectionSceneQuery::~IntersectionSceneQuery ( ) [virtual]

Member Function Documentation

virtual void Ogre::IntersectionSceneQuery::clearResults ( void ) [virtual]

Clears the results of the last query execution.

Remarks:: You only need to call this if you specifically want to free up the memory used by this object to hold the last query results. This object clears the results itself when executing and when destroying itself.

virtual void Ogre::IntersectionSceneQuery::execute ( IntersectionSceneQueryListener * listener ) [pure virtual]

Executes the query and returns each match through a listener interface.

Remarks:: Note that this method does not store the results of the query internally so does not update the 'last result' value. This means that this version of execute is more lightweight and therefore more efficient than the version which returns the results as a collection.

Implemented in Ogre::DefaultIntersectionSceneQuery.

virtual IntersectionSceneQueryResult& Ogre::IntersectionSceneQuery::execute ( void ) [virtual]

Executes the query, returning the results back in one list.

Remarks:: This method executes the scene query as configured, gathers the results into one structure and returns a reference to that structure. These results will also persist in this query object until the next query is executed, or clearResults() is called. An more lightweight version of this method that returns results through a listener is also available.

virtual IntersectionSceneQueryResult& Ogre::IntersectionSceneQuery::getLastResults ( void ) const [virtual]

Gets the results of the last query that was run using this object, provided the query was executed using the collection-returning version of execute.

virtual uint32 Ogre::SceneQuery::getQueryMask ( void ) const [virtual, inherited]

Returns the current mask for this query.

virtual uint32 Ogre::SceneQuery::getQueryTypeMask ( void ) const [virtual, inherited]

Returns the current mask for this query.

virtual const set<WorldFragmentType>::type* Ogre::SceneQuery::getSupportedWorldFragmentTypes ( void ) const [virtual, inherited]

Returns the types of world fragments this query supports.

Definition at line 174 of file OgreSceneQuery.h.

virtual WorldFragmentType Ogre::SceneQuery::getWorldFragmentType ( void ) const [virtual, inherited]

Gets the current world fragment types to be returned from the query.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)			`[inherited]`

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		void *
	)			`[inherited]`

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr ) [inherited]

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)			`[inherited]`

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr ) [inherited]

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		void *	ptr
	)			`[inherited]`

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new ( size_t sz ) [inherited]

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)			`[inherited]`

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz ) [inherited]

Definition at line 90 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)			`[inherited]`

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

bool Ogre::IntersectionSceneQuery::queryResult	(	MovableObject *	movable,
		SceneQuery::WorldFragment *	fragment
	)			`[virtual]`

Self-callback in order to deal with execute which returns collection.

Implements Ogre::IntersectionSceneQueryListener.

bool Ogre::IntersectionSceneQuery::queryResult	(	MovableObject *	first,
		MovableObject *	second
	)			`[virtual]`

Self-callback in order to deal with execute which returns collection.

Implements Ogre::IntersectionSceneQueryListener.

virtual void Ogre::SceneQuery::setQueryMask ( uint32 mask ) [virtual, inherited]

Sets the mask for results of this query.

Remarks:: This method allows you to set a 'mask' to limit the results of this query to certain types of result. The actual meaning of this value is up to the application; basically MovableObject instances will only be returned from this query if a bitwise AND operation between this mask value and the MovableObject::getQueryFlags value is non-zero. The application will have to decide what each of the bits means.

virtual void Ogre::SceneQuery::setQueryTypeMask ( uint32 mask ) [virtual, inherited]

Sets the type mask for results of this query.

Remarks:: This method allows you to set a 'type mask' to limit the results of this query to certain types of objects. Whilst setQueryMask deals with flags set per instance of object, this method deals with setting a mask on flags set per type of object. Both may exclude an object from query results.

virtual void Ogre::SceneQuery::setWorldFragmentType ( enum WorldFragmentType wft ) [virtual, inherited]

Tells the query what kind of world geometry to return from queries; often the full renderable geometry is not what is needed.

Remarks:: The application receiving the world geometry is expected to know what to do with it; inevitably this means that the application must have knowledge of at least some of the structures used by the custom SceneManager.