OGRE  1.12.4
Object-Oriented Graphics Rendering Engine
Ogre::BspLevel Class Reference

Holds all the data associated with a Binary Space Parition (BSP) based indoor level. More...

#include <OgreBspLevel.h>

+ Inheritance diagram for Ogre::BspLevel:

Public Types

enum  LoadingFlags {
  LF_DEFAULT = 0, LF_INCLUDE_NON_RELOADABLE = 1, LF_ONLY_UNREFERENCED = 2, LF_ONLY_UNREFERENCED_INCLUDE_NON_RELOADABLE = 3,
  LF_PRESERVE_STATE = 4
}
 Enum that allow to choose subset of unloaded/reloaded resources and to adjust reloading behavior. More...
 
enum  LoadingState {
  LOADSTATE_UNLOADED, LOADSTATE_LOADING, LOADSTATE_LOADED, LOADSTATE_UNLOADING,
  LOADSTATE_PREPARED, LOADSTATE_PREPARING
}
 Enum identifying the loading state of the resource. More...
 

Public Member Functions

 BspLevel (ResourceManager *creator, const String &name, ResourceHandle handle, const String &group, bool isManual=false, ManualResourceLoader *loader=0)
 Default constructor - used by BspResourceManager (do not call directly) More...
 
 ~BspLevel ()
 
virtual void _dirtyState ()
 Manually mark the state of this resource as having been changed. More...
 
void _fireLoadingComplete (bool wasBackgroundLoaded)
 Firing of loading complete event. More...
 
void _firePreparingComplete (bool wasBackgroundLoaded)
 Firing of preparing complete event. More...
 
void _fireUnloadingComplete (void)
 Firing of unloading complete event. More...
 
void _notifyObjectDetached (const MovableObject *mov)
 Internal method, makes sure an object is removed from the leaves when detached from a node. More...
 
void _notifyObjectMoved (const MovableObject *mov, const Vector3 &pos)
 Ensures that the MovableObject is attached to the right leaves of the BSP tree. More...
 
void _notifyOrigin (const String &origin)
 Notify this resource of it's origin. More...
 
virtual void addListener (Listener *lis)
 Register a listener on this resource. More...
 
virtual void changeGroupOwnership (const String &newGroup)
 Change the resource group ownership of a Resource. More...
 
void copyParametersTo (StringInterface *dest) const
 Method for copying this object's parameters to another object. More...
 
virtual void escalateLoading ()
 Escalates the loading of a background loaded resource. More...
 
BspNodefindLeaf (const Vector3 &point) const
 Walks the entire BSP tree and returns the leaf which contains the given point. More...
 
ResourceManagergetCreator (void)
 Gets the manager which created this resource. More...
 
virtual const StringgetGroup (void) const
 Gets the group which this resource is a member of. More...
 
virtual ResourceHandle getHandle (void) const
 
BspNodegetLeafStart (void)
 Gets a pointer to the start of the leaf nodes. More...
 
virtual LoadingState getLoadingState () const
 Returns the current loading state. More...
 
virtual const StringgetName (void) const
 Gets resource name. More...
 
int getNumLeaves (void) const
 Gets the number of leaf nodes. More...
 
const StringgetOrigin (void) const
 Get the origin of this resource, e.g. More...
 
ParamDictionarygetParamDictionary (void)
 Retrieves the parameter dictionary for this class. More...
 
const ParamDictionarygetParamDictionary (void) const
 
String getParameter (const String &name) const
 Generic parameter retrieval method. More...
 
const ParameterListgetParameters (void) const
 Retrieves a list of parameters valid for this object. More...
 
const BspNodegetRootNode (void)
 Returns a pointer to the root node (BspNode) of the BSP tree. More...
 
virtual size_t getSize (void) const
 Retrieves info about the size of the resource. More...
 
Real getSkyCurvature (void) const
 Get sky curvature. More...
 
const StringgetSkyMaterialName (void) const
 Get Sky material name. More...
 
virtual size_t getStateCount () const
 Returns the number of times this resource has changed state, which generally means the number of times it has been loaded. More...
 
virtual bool isBackgroundLoaded (void) const
 Returns whether this Resource has been earmarked for background loading. More...
 
bool isLeafVisible (const BspNode *from, const BspNode *to) const
 Determines if one leaf node is visible from another. More...
 
virtual bool isLoaded (void) const
 Returns true if the Resource has been loaded, false otherwise. More...
 
virtual bool isLoading () const
 Returns whether the resource is currently in the process of background loading. More...
 
virtual bool isManuallyLoaded (void) const
 Is this resource manually loaded? More...
 
virtual bool isPrepared (void) const
 Returns true if the Resource has been prepared, false otherwise. More...
 
virtual bool isReloadable (void) const
 Returns true if the Resource is reloadable, false otherwise. More...
 
bool isSkyEnabled (void) const
 Is sky enabled? More...
 
void load (DataStreamPtr &stream)
 Load direct from stream. More...
 
virtual void load (bool backgroundThread=false)
 Loads the resource, if it is not already. More...
 
virtual void prepare (bool backgroundThread=false)
 Prepares the resource for load, if it is not already. More...
 
virtual void reload (LoadingFlags flags=LF_DEFAULT)
 Reloads the resource, if it is already loaded. More...
 
virtual void removeListener (Listener *lis)
 Remove a listener on this resource. More...
 
virtual void setBackgroundLoaded (bool bl)
 Tells the resource whether it is background loaded or not. More...
 
bool setParameter (const String &name, const String &value)
 Generic parameter setting method. More...
 
void setParameterList (const NameValuePairList &paramList)
 Generic multiple parameter setting method. More...
 
virtual void touch (void)
 'Touches' the resource to indicate it has been used. More...
 
virtual void unload (void)
 Unloads the resource; this is not permanent, the resource can be reloaded later if required. More...
 

Static Public Member Functions

static size_t calculateLoadingStages (const String &levelName)
 Calculate the number of loading stages required for a given level. More...
 
static size_t calculateLoadingStages (DataStreamPtr &stream)
 Calculate the number of loading stages required for a given level. More...
 
static void cleanupDictionary ()
 Cleans up the static 'msDictionary' required to reset Ogre, otherwise the containers are left with invalid pointers, which will lead to a crash as soon as one of the ResourceManager implementers (e.g. More...
 

Public Attributes

 OGRE_AUTO_MUTEX
 

Friends

class BspSceneManager
 

Detailed Description

Holds all the data associated with a Binary Space Parition (BSP) based indoor level.

The data used here is populated by loading level files via the BspLevelManager::load method, although application users are more likely to call SceneManager::setWorldGeometry which will automatically arrange the loading of the level. Note that this assumes that you have asked for an indoor-specialised SceneManager (specify ST_INDOOR when calling Root::getSceneManager). Ogre currently only supports loading from Quake3 Arena level files, although any source that can be converted into this classes structure could also be used. The Quake3 level load process is in a different class called Quake3Level to keep the specifics separate.

Member Enumeration Documentation

◆ LoadingState

Enum identifying the loading state of the resource.

Enumerator
LOADSTATE_UNLOADED 

Not loaded.

LOADSTATE_LOADING 

Loading is in progress.

LOADSTATE_LOADED 

Fully loaded.

LOADSTATE_UNLOADING 

Currently unloading.

LOADSTATE_PREPARED 

Fully prepared.

LOADSTATE_PREPARING 

Preparing is in progress.

◆ LoadingFlags

Enum that allow to choose subset of unloaded/reloaded resources and to adjust reloading behavior.

Enumerator
LF_DEFAULT 

Only reloadable resources are processed, reload restores initial state.

LF_INCLUDE_NON_RELOADABLE 

Process non-reloadable resources too.

LF_ONLY_UNREFERENCED 

Process only resources which are not referenced by any other object. Usefull to reduce resource consumption.

LF_ONLY_UNREFERENCED_INCLUDE_NON_RELOADABLE 

Combination of LF_ONLY_UNREFERENCED and LF_INCLUDE_NON_RELOADABLE.

LF_PRESERVE_STATE 

Preserve some states during reloading, for example stencil shadows prepareness for Meshes.

Constructor & Destructor Documentation

◆ BspLevel()

Ogre::BspLevel::BspLevel ( ResourceManager creator,
const String name,
ResourceHandle  handle,
const String group,
bool  isManual = false,
ManualResourceLoader loader = 0 
)

Default constructor - used by BspResourceManager (do not call directly)

◆ ~BspLevel()

Ogre::BspLevel::~BspLevel ( )

Member Function Documentation

◆ isLeafVisible()

bool Ogre::BspLevel::isLeafVisible ( const BspNode from,
const BspNode to 
) const

Determines if one leaf node is visible from another.

◆ getRootNode()

const BspNode* Ogre::BspLevel::getRootNode ( void  )

Returns a pointer to the root node (BspNode) of the BSP tree.

◆ findLeaf()

BspNode* Ogre::BspLevel::findLeaf ( const Vector3 point) const

Walks the entire BSP tree and returns the leaf which contains the given point.

◆ _notifyObjectMoved()

void Ogre::BspLevel::_notifyObjectMoved ( const MovableObject mov,
const Vector3 pos 
)

Ensures that the MovableObject is attached to the right leaves of the BSP tree.

◆ _notifyObjectDetached()

void Ogre::BspLevel::_notifyObjectDetached ( const MovableObject mov)

Internal method, makes sure an object is removed from the leaves when detached from a node.

◆ getLeafStart()

BspNode* Ogre::BspLevel::getLeafStart ( void  )
inline

Gets a pointer to the start of the leaf nodes.

◆ getNumLeaves()

int Ogre::BspLevel::getNumLeaves ( void  ) const
inline

Gets the number of leaf nodes.

References calculateLoadingStages(), getSkyCurvature(), getSkyMaterialName(), isSkyEnabled(), and load().

◆ calculateLoadingStages() [1/2]

static size_t Ogre::BspLevel::calculateLoadingStages ( const String levelName)
static

Calculate the number of loading stages required for a given level.

Referenced by getNumLeaves().

◆ calculateLoadingStages() [2/2]

static size_t Ogre::BspLevel::calculateLoadingStages ( DataStreamPtr stream)
static

Calculate the number of loading stages required for a given level.

◆ load() [1/2]

void Ogre::BspLevel::load ( DataStreamPtr stream)

Load direct from stream.

Referenced by getNumLeaves().

◆ isSkyEnabled()

bool Ogre::BspLevel::isSkyEnabled ( void  ) const

Is sky enabled?

Referenced by getNumLeaves().

◆ getSkyMaterialName()

const String& Ogre::BspLevel::getSkyMaterialName ( void  ) const

Get Sky material name.

Referenced by getNumLeaves().

◆ getSkyCurvature()

Real Ogre::BspLevel::getSkyCurvature ( void  ) const

Get sky curvature.

Referenced by getNumLeaves().

◆ prepare()

virtual void Ogre::Resource::prepare ( bool  backgroundThread = false)
virtualinherited

Prepares the resource for load, if it is not already.

One can call prepare() before load(), but this is not required as load() will call prepare() itself, if needed. When OGRE_THREAD_SUPPORT==1 both load() and prepare() are thread-safe. When OGRE_THREAD_SUPPORT==2 however, only prepare() is thread-safe. The reason for this function is to allow a background thread to do some of the loading work, without requiring the whole render system to be thread-safe. The background thread would call prepare() while the main render loop would later call load(). So long as prepare() remains thread-safe, subclasses can arbitrarily split the work of loading a resource between load() and prepare(). It is best to try and do as much work in prepare(), however, since this will leave less work for the main render thread to do and thus increase FPS.

Parameters
backgroundThreadWhether this is occurring in a background thread

◆ load() [2/2]

virtual void Ogre::Resource::load ( bool  backgroundThread = false)
virtualinherited

Loads the resource, if it is not already.

Remarks
If the resource is loaded from a file, loading is automatic. If not, if for example this resource gained it's data from procedural calls rather than loading from a file, then this resource will not reload on it's own.
Parameters
backgroundThreadIndicates whether the caller of this method is the background resource loading thread.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ reload()

virtual void Ogre::Resource::reload ( LoadingFlags  flags = LF_DEFAULT)
virtualinherited

Reloads the resource, if it is already loaded.

Remarks
Calls unload() and then load() again, if the resource is already loaded. If it is not loaded already, then nothing happens.

Reimplemented in Ogre::Mesh, and Ogre::UnifiedHighLevelGpuProgram.

◆ isReloadable()

virtual bool Ogre::Resource::isReloadable ( void  ) const
inlinevirtualinherited

Returns true if the Resource is reloadable, false otherwise.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ isManuallyLoaded()

virtual bool Ogre::Resource::isManuallyLoaded ( void  ) const
inlinevirtualinherited

Is this resource manually loaded?

◆ unload()

virtual void Ogre::Resource::unload ( void  )
virtualinherited

Unloads the resource; this is not permanent, the resource can be reloaded later if required.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ getSize()

virtual size_t Ogre::Resource::getSize ( void  ) const
inlinevirtualinherited

Retrieves info about the size of the resource.

Reimplemented in Ogre::CgProgram, and Ogre::UnifiedHighLevelGpuProgram.

◆ touch()

virtual void Ogre::Resource::touch ( void  )
virtualinherited

'Touches' the resource to indicate it has been used.

Reimplemented in Ogre::Material, Ogre::CgProgram, and Ogre::UnifiedHighLevelGpuProgram.

Referenced by Ogre::Material::touch().

◆ getName()

virtual const String& Ogre::Resource::getName ( void  ) const
inlinevirtualinherited

◆ getHandle()

virtual ResourceHandle Ogre::Resource::getHandle ( void  ) const
inlinevirtualinherited

Reimplemented in Ogre::SkeletonInstance.

◆ isPrepared()

virtual bool Ogre::Resource::isPrepared ( void  ) const
inlinevirtualinherited

Returns true if the Resource has been prepared, false otherwise.

◆ isLoaded()

virtual bool Ogre::Resource::isLoaded ( void  ) const
inlinevirtualinherited

Returns true if the Resource has been loaded, false otherwise.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ isLoading()

virtual bool Ogre::Resource::isLoading ( ) const
inlinevirtualinherited

Returns whether the resource is currently in the process of background loading.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ getLoadingState()

virtual LoadingState Ogre::Resource::getLoadingState ( ) const
inlinevirtualinherited

Returns the current loading state.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ isBackgroundLoaded()

virtual bool Ogre::Resource::isBackgroundLoaded ( void  ) const
inlinevirtualinherited

Returns whether this Resource has been earmarked for background loading.

Remarks
This option only makes sense when you have built Ogre with thread support (OGRE_THREAD_SUPPORT). If a resource has been marked for background loading, then it won't load on demand like normal when load() is called. Instead, it will ignore request to load() except if the caller indicates it is the background loader. Any other users of this resource should check isLoaded(), and if that returns false, don't use the resource and come back later.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ setBackgroundLoaded()

virtual void Ogre::Resource::setBackgroundLoaded ( bool  bl)
inlinevirtualinherited

Tells the resource whether it is background loaded or not.

See also
Resource::isBackgroundLoaded. Note that calling this only defers the normal on-demand loading behaviour of a resource, it does not actually set up a thread to make sure the resource gets loaded in the background. You should use ResourceBackgroundLoadingQueue to manage the actual loading (which will call this method itself).

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ escalateLoading()

virtual void Ogre::Resource::escalateLoading ( )
virtualinherited

Escalates the loading of a background loaded resource.

Remarks
If a resource is set to load in the background, but something needs it before it's been loaded, there could be a problem. If the user of this resource really can't wait, they can escalate the loading which basically pulls the loading into the current thread immediately. If the resource is already being loaded but just hasn't quite finished then this method will simply wait until the background load is complete.

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ addListener()

virtual void Ogre::Resource::addListener ( Listener lis)
virtualinherited

Register a listener on this resource.

See also
Resource::Listener

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ removeListener()

virtual void Ogre::Resource::removeListener ( Listener lis)
virtualinherited

Remove a listener on this resource.

See also
Resource::Listener

Reimplemented in Ogre::UnifiedHighLevelGpuProgram.

◆ getGroup()

virtual const String& Ogre::Resource::getGroup ( void  ) const
inlinevirtualinherited

Gets the group which this resource is a member of.

Reimplemented in Ogre::SkeletonInstance.

◆ changeGroupOwnership()

virtual void Ogre::Resource::changeGroupOwnership ( const String newGroup)
virtualinherited

Change the resource group ownership of a Resource.

Remarks
This method is generally reserved for internal use, although if you really know what you're doing you can use it to move this resource from one group to another.
Parameters
newGroupName of the new group

◆ getCreator()

ResourceManager* Ogre::Resource::getCreator ( void  )
inlineinherited

Gets the manager which created this resource.

◆ getOrigin()

const String& Ogre::Resource::getOrigin ( void  ) const
inlineinherited

Get the origin of this resource, e.g.

a script file name.

Remarks
This property will only contain something if the creator of this resource chose to populate it. Script loaders are advised to populate it.

◆ _notifyOrigin()

void Ogre::Resource::_notifyOrigin ( const String origin)
inlineinherited

Notify this resource of it's origin.

◆ getStateCount()

virtual size_t Ogre::Resource::getStateCount ( ) const
inlinevirtualinherited

Returns the number of times this resource has changed state, which generally means the number of times it has been loaded.

Objects that build derived data based on the resource can check this value against a copy they kept last time they built this derived data, in order to know whether it needs rebuilding. This is a nice way of monitoring changes without having a tightly-bound callback.

◆ _dirtyState()

virtual void Ogre::Resource::_dirtyState ( )
virtualinherited

Manually mark the state of this resource as having been changed.

Remarks
You only need to call this from outside if you explicitly want derived objects to think this object has changed.
See also
getStateCount.

◆ _fireLoadingComplete()

void Ogre::Resource::_fireLoadingComplete ( bool  wasBackgroundLoaded)
inherited

Firing of loading complete event.

Remarks
You should call this from the thread that runs the main frame loop to avoid having to make the receivers of this event thread-safe. If you use Ogre's built in frame loop you don't need to call this yourself.
Parameters
wasBackgroundLoadedWhether this was a background loaded event

◆ _firePreparingComplete()

void Ogre::Resource::_firePreparingComplete ( bool  wasBackgroundLoaded)
inherited

Firing of preparing complete event.

Remarks
You should call this from the thread that runs the main frame loop to avoid having to make the receivers of this event thread-safe. If you use Ogre's built in frame loop you don't need to call this yourself.
Parameters
wasBackgroundLoadedWhether this was a background loaded event

◆ _fireUnloadingComplete()

void Ogre::Resource::_fireUnloadingComplete ( void  )
inherited

Firing of unloading complete event.

Remarks
You should call this from the thread that runs the main frame loop to avoid having to make the receivers of this event thread-safe. If you use Ogre's built in frame loop you don't need to call this yourself.

◆ getParamDictionary() [1/2]

ParamDictionary* Ogre::StringInterface::getParamDictionary ( void  )
inlineinherited

Retrieves the parameter dictionary for this class.

Remarks
Only valid to call this after createParamDictionary.
Returns
Pointer to ParamDictionary shared by all instances of this class which you can add parameters to, retrieve parameters etc.

◆ getParamDictionary() [2/2]

const ParamDictionary* Ogre::StringInterface::getParamDictionary ( void  ) const
inlineinherited

◆ getParameters()

const ParameterList& Ogre::StringInterface::getParameters ( void  ) const
inherited

Retrieves a list of parameters valid for this object.

Returns
A reference to a static list of ParameterDef objects.

◆ setParameter()

bool Ogre::StringInterface::setParameter ( const String name,
const String value 
)
inherited

Generic parameter setting method.

Remarks
Call this method with the name of a parameter and a string version of the value to set. The implementor will convert the string to a native type internally. If in doubt, check the parameter definition in the list returned from StringInterface::getParameters.
Parameters
nameThe name of the parameter to set
valueString value. Must be in the right format for the type specified in the parameter definition. See the StringConverter class for more information.
Returns
true if set was successful, false otherwise (NB no exceptions thrown - tolerant method)

Referenced by Ogre::StringInterface::copyParametersTo().

◆ setParameterList()

void Ogre::StringInterface::setParameterList ( const NameValuePairList paramList)
inherited

Generic multiple parameter setting method.

Remarks
Call this method with a list of name / value pairs to set. The implementor will convert the string to a native type internally. If in doubt, check the parameter definition in the list returned from StringInterface::getParameters.
Parameters
paramListName/value pair list

◆ getParameter()

String Ogre::StringInterface::getParameter ( const String name) const
inlineinherited

Generic parameter retrieval method.

Remarks
Call this method with the name of a parameter to retrieve a string-format value of the parameter in question. If in doubt, check the parameter definition in the list returned from getParameters for the type of this parameter. If you like you can use StringConverter to convert this string back into a native type.
Parameters
nameThe name of the parameter to get
Returns
String value of parameter, blank if not found

References Ogre::ParamCommand::doGet().

◆ copyParametersTo()

void Ogre::StringInterface::copyParametersTo ( StringInterface dest) const
inlineinherited

Method for copying this object's parameters to another object.

Remarks
This method takes the values of all the object's parameters and tries to set the same values on the destination object. This provides a completely type independent way to copy parameters to other objects. Note that because of the String manipulation involved, this should not be regarded as an efficient process and should be saved for times outside of the rendering loop.
Any unrecognised parameters will be ignored as with setParameter method.
Parameters
destPointer to object to have it's parameters set the same as this object.

References Ogre::StringInterface::setParameter().

◆ cleanupDictionary()

static void Ogre::StringInterface::cleanupDictionary ( )
staticinherited

Cleans up the static 'msDictionary' required to reset Ogre, otherwise the containers are left with invalid pointers, which will lead to a crash as soon as one of the ResourceManager implementers (e.g.

MaterialManager) initializes.

Friends And Related Function Documentation

◆ BspSceneManager

friend class BspSceneManager
friend

Member Data Documentation

◆ OGRE_AUTO_MUTEX

Ogre::Resource::OGRE_AUTO_MUTEX
inherited

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