#include <EventHandler.h>

Inherited by EMStudio::AnimGraphEventHandler, EMStudio::NodePaletteWidget::EventHandler, and EMotionFX::MotionLinkCache.

Public Member Functions
virtual void	OnEvent (const EventInfo &eventInfo)

virtual const AZStd::vector< EventTypes >	GetHandledEventTypes () const =0

virtual void	OnPlayMotion (Motion motion, PlayBackInfo info)

virtual void	OnStartMotionInstance (MotionInstance motionInstance, PlayBackInfo info)

virtual void	OnDeleteMotionInstance (MotionInstance *motionInstance)

virtual void	OnDeleteMotion (Motion *motion)

virtual void	OnStop (MotionInstance *motionInstance)

virtual void	OnHasLooped (MotionInstance *motionInstance)

virtual void	OnHasReachedMaxNumLoops (MotionInstance *motionInstance)

virtual void	OnHasReachedMaxPlayTime (MotionInstance *motionInstance)

virtual void	OnIsFrozenAtLastFrame (MotionInstance *motionInstance)

virtual void	OnChangedPauseState (MotionInstance *motionInstance)

virtual void	OnChangedActiveState (MotionInstance *motionInstance)

virtual void	OnStartBlending (MotionInstance *motionInstance)

virtual void	OnStopBlending (MotionInstance *motionInstance)

virtual void	OnQueueMotionInstance (MotionInstance motionInstance, PlayBackInfo info)

virtual void	OnDeleteActor (Actor *actor)

virtual void	OnSimulatePhysics (float timeDelta)

virtual void	OnCustomEvent (uint32 eventType, void *data)

virtual void	OnDrawTriangle (const AZ::Vector3 &posA, const AZ::Vector3 &posB, const AZ::Vector3 &posC, const AZ::Vector3 &normalA, const AZ::Vector3 &normalB, const AZ::Vector3 &normalC, uint32 color)

virtual void	OnDrawTriangles ()

virtual void	OnCreateAnimGraph (AnimGraph *animGraph)

virtual void	OnCreateAnimGraphInstance (AnimGraphInstance *animGraphInstance)

virtual void	OnCreateMotion (Motion *motion)

virtual void	OnCreateMotionSet (MotionSet *motionSet)

virtual void	OnCreateMotionInstance (MotionInstance *motionInstance)

virtual void	OnCreateMotionSystem (MotionSystem *motionSystem)

virtual void	OnCreateActor (Actor *actor)

virtual void	OnPostCreateActor (Actor *actor)

virtual void	OnDeleteAnimGraph (AnimGraph *animGraph)

virtual void	OnDeleteAnimGraphInstance (AnimGraphInstance *animGraphInstance)

virtual void	OnDeleteMotionSet (MotionSet *motionSet)

virtual void	OnDeleteMotionSystem (MotionSystem *motionSystem)

virtual bool	OnRayIntersectionTest (const AZ::Vector3 &start, const AZ::Vector3 &end, IntersectionInfo *outIntersectInfo)

virtual void	OnStateEnter (AnimGraphInstance animGraphInstance, AnimGraphNode state)

virtual void	OnStateEntering (AnimGraphInstance animGraphInstance, AnimGraphNode state)

virtual void	OnStateExit (AnimGraphInstance animGraphInstance, AnimGraphNode state)

virtual void	OnStateEnd (AnimGraphInstance animGraphInstance, AnimGraphNode state)

virtual void	OnStartTransition (AnimGraphInstance animGraphInstance, AnimGraphStateTransition transition)

virtual void	OnEndTransition (AnimGraphInstance animGraphInstance, AnimGraphStateTransition transition)

virtual void	OnSetVisualManipulatorOffset (AnimGraphInstance *animGraphInstance, size_t paramIndex, const AZ::Vector3 &offset)

virtual void	OnInputPortsChanged (AnimGraphNode *node, const AZStd::vector< AZStd::string > &newInputPorts, const AZStd::string &memberName, const AZStd::vector< AZStd::string > &memberValue)

virtual void	OnOutputPortsChanged (AnimGraphNode *node, const AZStd::vector< AZStd::string > &newOutputPorts, const AZStd::string &memberName, const AZStd::vector< AZStd::string > &memberValue)

virtual void	OnRenamedNode (AnimGraph animGraph, AnimGraphNode node, const AZStd::string &oldName)

virtual void	OnCreatedNode (AnimGraph animGraph, AnimGraphNode node)

virtual void	OnRemoveNode (AnimGraph animGraph, AnimGraphNode nodeToRemove)

virtual void	OnRemovedChildNode (AnimGraph animGraph, AnimGraphNode parentNode)

virtual void	OnProgressStart ()

virtual void	OnProgressEnd ()

virtual void	OnProgressText (const char *text)

virtual void	OnProgressValue (float percentage)

virtual void	OnSubProgressText (const char *text)

virtual void	OnSubProgressValue (float percentage)

virtual void	OnScaleActorData (Actor *actor, float scaleFactor)

virtual void	OnScaleMotionData (Motion *motion, float scaleFactor)

Detailed Description

The event handler, which is responsible for processing the events. This class contains several methods which you can overload to perform custom things event comes up. You can inherit your own event handler from this base class and add it to the event manager using EMFX_EVENTMGR.AddEventHandler(...) method to make it use your custom event handler. Every event your derived class handles has to be returned by the GetHandledEventTypes method. This helps filtering the event dispatching to only the handlers that are interested about such event.

Member Function Documentation

◆ GetHandledEventTypes()

virtual const AZStd::vector<EventTypes> EMotionFX::EventHandler::GetHandledEventTypes ( ) const

pure virtual

Event handlers need to overload this function and return the list of events they are interested about

Implemented in EMStudio::NodePaletteWidget::EventHandler, and EMStudio::AnimGraphEventHandler.

◆ OnChangedActiveState()

virtual void EMotionFX::EventHandler::OnChangedActiveState ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once the motion active state changes. For example when the motion is active but gets set to inactive using the MotionInstance::SetActive(...) method, then this even twill be triggered. Inactive motions don't get processed at all. They will not update their playback times, blending, nor will they take part in any blending calculations of the final node transforms. In other words, it will just be like the motion instance does not exist at all.

Parameters

motionInstance The motion instance that changed its active state.

◆ OnChangedPauseState()

virtual void EMotionFX::EventHandler::OnChangedPauseState ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once the motion pause state changes. For example when the motion is unpaused but gets paused, then this even twill be triggered. Paused motions don't get their playback times updated. They do however still perform blending, so it is still possible to fade them in or out.

Parameters

motionInstance The motion instance that changed its paused state.

◆ OnDeleteActor()

virtual void EMotionFX::EventHandler::OnDeleteActor ( Actor * actor )

inlinevirtual

The event that gets triggered once an Actor object is being deleted. You could for example use this event to delete any allocations you have done inside the custom user data object linked with the Actor object. You can get and set this data object with the Actor::GetCustomData() and Actor::SetCustomData(...) methods.

Parameters

actor The actor that is being deleted.

◆ OnDeleteMotion()

virtual void EMotionFX::EventHandler::OnDeleteMotion ( Motion * motion )

inlinevirtual

The event that gets triggered once a Motion object is being deleted. You could for example use this event to delete any allocations you have done inside the custom user data object linked with the Motion object. You can get and set this data object with the Motion::GetCustomData() and Motion::SetCustomData(...) methods.

Parameters

motion The motion that is being deleted.

◆ OnDeleteMotionInstance()

virtual void EMotionFX::EventHandler::OnDeleteMotionInstance ( MotionInstance * motionInstance )

inlinevirtual

The event that gets triggered once a MotionInstance object is being deleted. This can happen when calling the MotionSystem::RemoveMotionInstance() method manually, or when EMotion FX internally removes the motion instance because it has no visual influence anymore. The destructor of the MotionInstance class automatically triggers this event.

Parameters

motionInstance The motion instance that is being deleted.

◆ OnEvent()

virtual void EMotionFX::EventHandler::OnEvent ( const EventInfo & eventInfo )

inlinevirtual

The main method that processes a event.

Parameters

eventInfo The struct holding the information about the triggered event.

◆ OnHasLooped()

virtual void EMotionFX::EventHandler::OnHasLooped ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once a given motion instance has looped.

Parameters

motionInstance The motion instance that got looped.

◆ OnHasReachedMaxNumLoops()

virtual void EMotionFX::EventHandler::OnHasReachedMaxNumLoops ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once a given motion instance has reached its maximum number of allowed loops. In this case the motion instance will also be stopped automatically afterwards.

Parameters

motionInstance The motion instance that reached its maximum number of allowed loops.

◆ OnHasReachedMaxPlayTime()

virtual void EMotionFX::EventHandler::OnHasReachedMaxPlayTime ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once a given motion instance has reached its maximum playback time. For example if this motion instance is only allowed to play for 2 seconds, and the total playback time reaches two seconds, then this event will be triggered.

Parameters

motionInstance The motion instance that reached its maximum playback time.

◆ OnIsFrozenAtLastFrame()

virtual void EMotionFX::EventHandler::OnIsFrozenAtLastFrame ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once the motion instance is set to freeze at the last frame once the motion reached its end (when it reached its maximum number of loops or playtime). In this case this event will be triggered once.

Parameters

motionInstance The motion instance that got into a frozen state.

◆ OnPlayMotion()

virtual void EMotionFX::EventHandler::OnPlayMotion	(	Motion *	motion,
		PlayBackInfo *	info
	)

inlinevirtual

The event that gets triggered when a MotionSystem::PlayMotion(...) is being executed. The difference between OnStartMotionInstance() and this OnPlayMotion() is that the OnPlayMotion doesn't guarantee that the motion is being played yet, as it can also be added to the motion queue. The OnStartMotionInstance() method will be called once the motion is really being played.

Parameters

motion	The motion that is being played.
info	The playback info used to play the motion.

◆ OnQueueMotionInstance()

virtual void EMotionFX::EventHandler::OnQueueMotionInstance	(	MotionInstance *	motionInstance,
		PlayBackInfo *	info
	)

inlinevirtual

This event gets triggered once the given motion instance gets added to the motion queue. This happens when you set the PlayBackInfo::m_playNow member to false. In that case the MotionSystem::PlayMotion() method (OnPlayMotion) will not directly start playing the motion (OnStartMotionInstance), but will add it to the motion queue instead. The motion queue will then start playing the motion instance once it should.

Parameters

motionInstance	The motion instance that gets added to the motion queue.
info	The playback information used to play this motion instance.

◆ OnRayIntersectionTest()

virtual bool EMotionFX::EventHandler::OnRayIntersectionTest	(	const AZ::Vector3 &	start,
		const AZ::Vector3 &	end,
		IntersectionInfo *	outIntersectInfo
	)

inlinevirtual

Perform a ray intersection test and return the intersection info. The first event handler registered that sets the IntersectionInfo::m_isValid to true will be outputting to the outIntersectInfo parameter.

Parameters

start	The start point, in world space.
end	The end point, in world space.
outIntersectInfo	The resulting intersection info.

Returns: Returns true when an intersection occurred and false when no intersection occurred.

Reimplemented in EMStudio::AnimGraphEventHandler.

◆ OnStartBlending()

virtual void EMotionFX::EventHandler::OnStartBlending ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once a motion instance is automatically changing its weight value over time. For example when a motion is automatically being faded in from weight 0 to a given target weight in half a second, then once this blending starts, this event is being triggered. Once the the MotionInstance::SetWeight(...) method is being called with a blend time bigger than zero, and if the motion instance isn't currently already blending, then this event will be triggered. This event most likely will get triggered when using the MotionSystem::PlayMotion() and MotionInstance::Stop() methods.

Parameters

motionInstance The motion instance which is changing its weight value over time.

◆ OnStartMotionInstance()

virtual void EMotionFX::EventHandler::OnStartMotionInstance	(	MotionInstance *	motionInstance,
		PlayBackInfo *	info
	)

inlinevirtual

The event that gets triggered when a motion instance is really being played. This can be a manual call through MotionInstance::PlayMotion or when the MotionQueue class will start playing a motion that was on the queue. The difference between OnStartMotionInstance() and this OnPlayMotion() is that the OnPlayMotion doesn't guarantee that the motion is being played yet, as it can also be added to the motion queue. The OnStartMotionInstance() method will be called once the motion is really being played.

Parameters

motionInstance	The motion instance that is being played.
info	The playback info used to play the motion.

◆ OnStop()

virtual void EMotionFX::EventHandler::OnStop ( MotionInstance * motionInstance )

inlinevirtual

The event that gets triggered when a motion instance is being stopped using one of the MotionInstance::Stop() methods. EMotion FX will internally stop the motion automatically when the motion instance reached its maximum playback time or its maximum number of loops.

Parameters

motionInstance The motion instance that is being stopped.

◆ OnStopBlending()

virtual void EMotionFX::EventHandler::OnStopBlending ( MotionInstance * motionInstance )

inlinevirtual

This event gets triggered once a motion instance stops it automatic changing of its weight value over time. For example when a motion is automatically being faded in from weight 0 to a given target weight in half a second, and once the target weight is reached after half a second, will cause this event to be triggered. Once the the MotionInstance::SetWeight(...) method is being called with a blend time equal to zero and the motion instance is currently blending its weight value, then this event will be triggered. This event most likely will get triggered when using the MotionSystem::PlayMotion() and MotionInstance::Stop() methods.

Parameters

motionInstance The motion instance for which the automatic weight blending just stopped.

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

Gems/EMotionFX/Code/EMotionFX/Source/EventHandler.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ GetHandledEventTypes()

◆ OnChangedActiveState()

◆ OnChangedPauseState()

◆ OnDeleteActor()

◆ OnDeleteMotion()

◆ OnDeleteMotionInstance()

◆ OnEvent()

◆ OnHasLooped()

◆ OnHasReachedMaxNumLoops()

◆ OnHasReachedMaxPlayTime()

◆ OnIsFrozenAtLastFrame()

◆ OnPlayMotion()

◆ OnQueueMotionInstance()

◆ OnRayIntersectionTest()

◆ OnStartBlending()

◆ OnStartMotionInstance()

◆ OnStop()

◆ OnStopBlending()