XII Release 0.1.0
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xiiBlackboardComponent Class Reference

#include <BlackboardComponent.h>

Inheritance diagram for xiiBlackboardComponent:
[legend]

Public Member Functions

virtual void SerializeComponent (xiiWorldWriter &inout_stream) const override
 Override this to save the current state of the component to the given stream.
virtual void DeserializeComponent (xiiWorldReader &inout_stream) override
const xiiSharedPtr< xiiBlackboard > & GetBoard ()
 Returns the blackboard owned by this component.
xiiSharedPtr< const xiiBlackboard > GetBoard () const
void SetShowDebugInfo (bool bShow)
bool GetShowDebugInfo () const
void SetEntryValue (const char *szName, const xiiVariant &value)
xiiVariant GetEntryValue (const char *szName) const
Public Member Functions inherited from xiiComponent
void SetActiveFlag (bool bEnabled)
bool GetActiveFlag () const
bool IsActive () const
bool IsActiveAndInitialized () const
bool IsActiveAndSimulating () const
xiiComponentManagerBase * GetOwningManager ()
 Returns the corresponding manager for this component.
const xiiComponentManagerBase * GetOwningManager () const
 Returns the corresponding manager for this component.
xiiGameObject * GetOwner ()
 Returns the owner game object if the component is attached to one or nullptr.
const xiiGameObject * GetOwner () const
 Returns the owner game object if the component is attached to one or nullptr.
xiiWorld * GetWorld ()
 Returns the corresponding world for this component.
const xiiWorld * GetWorld () const
 Returns the corresponding world for this component.
xiiComponentHandle GetHandle () const
 Returns a handle to this component.
xiiUInt32 GetUniqueID () const
 Returns the unique id for this component.
void SetUniqueID (xiiUInt32 uiUniqueID)
 Sets the unique id for this component.
void EnsureInitialized ()
 Ensures that the component is initialized. Must only be called from another component's Initialize callback.
void EnsureSimulationStarted ()
XII_ALWAYS_INLINE bool SendMessage (xiiMessage &ref_msg)
 Sends a message to this component.
XII_ALWAYS_INLINE bool SendMessage (xiiMessage &ref_msg) const
void PostMessage (const xiiMessage &msg, xiiTime delay=xiiTime::MakeZero(), xiiObjectMsgQueueType::Enum queueType=xiiObjectMsgQueueType::NextFrame) const
 Queues the message for the given phase. The message is processed after the given delay in the corresponding phase.
virtual bool HandlesMessage (const xiiMessage &msg) const
 Returns whether the given Message is handled by this component.
void SetUserFlag (xiiUInt8 uiFlagIndex, bool bSet)
 Be careful to check which flags may already be in use by base classes.
bool GetUserFlag (xiiUInt8 uiFlagIndex) const
 Retrieves a custom flag. Index must be between 0 and 7.
void SetCreatedByPrefab ()
 Adds xiiObjectFlags::CreatedByPrefab to the component. See the flag for details.
bool WasCreatedByPrefab () const
 Checks whether the xiiObjectFlags::CreatedByPrefab flag is set on this component.
void DeleteComponent ()
 Deletes this component. Note that the component will be invalidated first and the actual deletion is postponed.
Public Member Functions inherited from xiiReflectedClass
virtual const xiiRTTI * GetDynamicRTTI () const
bool IsInstanceOf (const xiiRTTI *pType) const
 Returns whether the type of this instance is of the given type or derived from it.
template<typename T>
XII_ALWAYS_INLINE bool IsInstanceOf () const
 Returns whether the type of this instance is of the given type or derived from it.

Static Public Member Functions

static xiiSharedPtr< xiiBlackboard > FindBlackboard (xiiGameObject *pSearchObject, xiiStringView sBlackboardName=xiiStringView())
Static Public Member Functions inherited from xiiNoBase
static const xiiRTTI * GetStaticRTTI ()

Protected Member Functions

virtual void OnActivated () override
virtual void OnDeactivated () override
void OnUpdateLocalBounds (xiiMsgUpdateLocalBounds &msg) const
void OnExtractRenderData (xiiMsgExtractRenderData &msg) const
Protected Member Functions inherited from xiiComponent
 xiiComponent ()
 Keep the constructor private or protected in derived classes, so it cannot be called manually.
bool IsDynamic () const
 Returns whether this component is dynamic and thus can only be attached to dynamic game objects.
virtual xiiWorldModuleTypeId GetTypeId () const =0
virtual xiiComponentMode::Enum GetMode () const =0
virtual void Initialize ()
virtual void Deinitialize ()
virtual void OnSimulationStarted ()
void EnableUnhandledMessageHandler (bool enable)
 By default disabled. Enable to have OnUnhandledMessage() called for every unhandled message.
virtual bool OnUnhandledMessage (xiiMessage &msg, bool bWasPostedMsg)
virtual bool OnUnhandledMessage (xiiMessage &msg, bool bWasPostedMsg) const
bool IsInitialized () const
bool IsInitializing () const
bool IsSimulationStarted () const

Static Protected Member Functions

static xiiBlackboard * Reflection_FindBlackboard (xiiGameObject *pSearchObject, xiiStringView sBlackboardName)

Protected Attributes

xiiSharedPtr< xiiBlackboard > m_pBoard
xiiBlackboardTemplateResourceHandle m_hTemplate
Protected Attributes inherited from xiiComponent
const xiiRTTI * m_pMessageDispatchType = nullptr
 Messages will be dispatched to this type. Default is what GetDynamicRTTI() returns, can be redirected if necessary.

Detailed Description

This base component represents a xiiBlackboard, which can be used to share state between multiple components and objects.

The derived implementations may either create their own blackboards or reference other blackboards.

Member Function Documentation

◆ DeserializeComponent()

void xiiBlackboardComponent::DeserializeComponent ( xiiWorldReader & ref_stream)
overridevirtual

Override this to load the current state of the component from the given stream.

The active state will be automatically serialized. The 'initialized' state is not serialized, all components will be initialized after creation, even if they were already in an initialized state when they were serialized.

Reimplemented from xiiComponent.

Reimplemented in xiiGlobalBlackboardComponent, and xiiLocalBlackboardComponent.

◆ FindBlackboard()

xiiSharedPtr< xiiBlackboard > xiiBlackboardComponent::FindBlackboard ( xiiGameObject * pSearchObject,
xiiStringView sBlackboardName = xiiStringView() )
static

Try to find a xiiBlackboardComponent on pSearchObject or its parents with the given name and returns its blackboard.

The blackboard name is only checked if the given name is not empty. If no matching blackboard component is found, the function will call xiiBlackboard::GetOrCreateGlobal() with the given name. Thus if you provide a name, you will always get a result, either from a component or from the global storage.

See also
xiiBlackboard::GetOrCreateGlobal()

◆ OnActivated()

void xiiBlackboardComponent::OnActivated ( )
overrideprotectedvirtual

This method is called when the component gets activated.

By default a component is active, but it can be created in an inactive state. In such a case OnActivated() is only called once a component is activated. If a component gets switched between active and inactive at runtime, OnActivated() and OnDeactivated() are called accordingly. In contrast Initialize() and Deinitialize() are only ever called once.

See also
OnActivated(), OnDeactivated(), Initialize(), Deinitialize(), OnSimulationStarted()

Reimplemented from xiiComponent.

Reimplemented in xiiGlobalBlackboardComponent, and xiiLocalBlackboardComponent.

◆ OnDeactivated()

void xiiBlackboardComponent::OnDeactivated ( )
overrideprotectedvirtual

This method is called when the component gets deactivated.

Upon destruction, a component that is active first gets deactivated. Therefore OnDeactivated() should be used for typical game code cleanup.

See also
OnActivated(), OnDeactivated(), Initialize(), Deinitialize(), OnSimulationStarted()

Reimplemented from xiiComponent.

Reimplemented in xiiGlobalBlackboardComponent, and xiiLocalBlackboardComponent.

◆ SerializeComponent()

void xiiBlackboardComponent::SerializeComponent ( xiiWorldWriter & ref_stream) const
overridevirtual

Override this to save the current state of the component to the given stream.

Reimplemented from xiiComponent.

Reimplemented in xiiGlobalBlackboardComponent, and xiiLocalBlackboardComponent.


The documentation for this class was generated from the following files:
  • /home/runner/work/XII/XII/Source/Engine/GameEngine/Components/GamePlay/BlackboardComponent.h
  • /home/runner/work/XII/XII/Source/Engine/GameEngine/Components/GamePlay/Implementation/BlackboardComponent.cpp