ezEngine  Release 25.03
ezJoltActorComponent Class Reference

Base class for all Jolt actors. More...

#include <JoltActorComponent.h>

Inheritance diagram for ezJoltActorComponent:

Public Member Functions

virtual void SerializeComponent (ezWorldWriter &inout_stream) const override
 Override this to save the current state of the component to the given stream.
 
virtual void DeserializeComponent (ezWorldReader &inout_stream) override
 Override this to load the current state of the component from the given stream. More...
 
void SetInitialObjectFilterID (ezUInt32 uiObjectFilterID)
 Sets the object filter ID to use. This can only be set right after creation, before the component gets activated.
 
ezUInt32 GetObjectFilterID () const
 The object filter ID can be used to ignore collisions specifically with this one object.
 
ezUInt32 GetJoltBodyID () const
 Returns the internal ID used by Jolt to identify this actor/body.
 
- Public Member Functions inherited from ezComponent
void SetActiveFlag (bool bEnabled)
 Sets the active flag of the component, which affects its active state. More...
 
bool GetActiveFlag () const
 Checks whether the 'active flag' is set on this component. Note that this does not mean that the component is also 'active'. More...
 
bool IsActive () const
 Checks whether this component is in an active state. More...
 
bool IsActiveAndInitialized () const
 Returns whether this component is active and initialized. More...
 
bool IsActiveAndSimulating () const
 Whether the component is currently active and simulation has been started as well. More...
 
ezComponentManagerBaseGetOwningManager ()
 Returns the corresponding manager for this component.
 
const ezComponentManagerBaseGetOwningManager () const
 Returns the corresponding manager for this component.
 
ezGameObjectGetOwner ()
 Returns the owner game object if the component is attached to one or nullptr.
 
const ezGameObjectGetOwner () const
 Returns the owner game object if the component is attached to one or nullptr.
 
ezWorldGetWorld ()
 Returns the corresponding world for this component.
 
const ezWorldGetWorld () const
 Returns the corresponding world for this component.
 
ezComponentHandle GetHandle () const
 Returns a handle to this component.
 
ezUInt32 GetUniqueID () const
 Returns the unique id for this component.
 
void SetUniqueID (ezUInt32 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 ()
 Ensures that the OnSimulationStarted method has been called. Must only be called from another component's OnSimulationStarted callback.
 
EZ_ALWAYS_INLINE bool SendMessage (ezMessage &ref_msg)
 Sends a message to this component.
 
EZ_ALWAYS_INLINE bool SendMessage (ezMessage &ref_msg) const
 
void PostMessage (const ezMessage &msg, ezTime delay=ezTime::MakeZero(), ezObjectMsgQueueType::Enum queueType=ezObjectMsgQueueType::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 ezMessage &msg) const
 Returns whether the given Message is handled by this component.
 
void SetUserFlag (ezUInt8 uiFlagIndex, bool bSet)
 Be careful to check which flags may already be in use by base classes.
 
bool GetUserFlag (ezUInt8 uiFlagIndex) const
 Retrieves a custom flag. Index must be between 0 and 7.
 
void SetCreatedByPrefab ()
 Adds ezObjectFlags::CreatedByPrefab to the component. See the flag for details.
 
bool WasCreatedByPrefab () const
 Checks whether the ezObjectFlags::CreatedByPrefab flag is set on this component.
 
- Public Member Functions inherited from ezReflectedClass
virtual const ezRTTIGetDynamicRTTI () const
 
bool IsInstanceOf (const ezRTTI *pType) const
 Returns whether the type of this instance is of the given type or derived from it.
 
template<typename T >
EZ_ALWAYS_INLINE bool IsInstanceOf () const
 Returns whether the type of this instance is of the given type or derived from it.
 

Public Attributes

ezUInt8 m_uiCollisionLayer = 0
 The collision layer determines with which other actors this actor collides. More...
 

Protected Member Functions

virtual void OnSimulationStarted () override
 This method is called once for active components, at the start of the next world update, but only when the world is simulated. More...
 
virtual void OnDeactivated () override
 This method is called when the component gets deactivated. More...
 
const ezJoltUserDataGetUserData () const
 
void ExtractSubShapeGeometry (const ezGameObject *pObject, ezMsgExtractGeometry &msg) const
 
ezResult CreateShape (JPH::BodyCreationSettings *pSettings, float fDensity, const ezJoltMaterial *pMaterial)
 
virtual void CreateShapes (ezDynamicArray< ezJoltSubShape > &out_Shapes, const ezTransform &rootTransform, float fDensity, const ezJoltMaterial *pMaterial)
 
- Protected Member Functions inherited from ezComponent
 ezComponent ()
 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 ezWorldModuleTypeId GetTypeId () const =0
 
virtual ezComponentMode::Enum GetMode () const =0
 
virtual void Initialize ()
 Can be overridden for basic initialization that depends on a valid hierarchy and position. More...
 
virtual void Deinitialize ()
 This method is called before the component is destroyed. A derived type can override this method to do common de-initialization work. More...
 
virtual void OnActivated ()
 This method is called when the component gets activated. More...
 
void EnableUnhandledMessageHandler (bool enable)
 By default disabled. Enable to have OnUnhandledMessage() called for every unhandled message.
 
virtual bool OnUnhandledMessage (ezMessage &msg, bool bWasPostedMsg)
 When EnableUnhandledMessageHandler() was activated, this is called for all messages for which there is no dedicated message handler. More...
 
virtual bool OnUnhandledMessage (ezMessage &msg, bool bWasPostedMsg) const
 When EnableUnhandledMessageHandler() was activated, this is called for all messages for which there is no dedicated message handler. More...
 
bool IsInitialized () const
 
bool IsInitializing () const
 
bool IsSimulationStarted () const
 

Static Protected Member Functions

static void GatherShapes (ezDynamicArray< ezJoltSubShape > &shapes, ezGameObject *pObject, const ezTransform &rootTransform, float fDensity, const ezJoltMaterial *pMaterial)
 

Protected Attributes

ezUInt32 m_uiUserDataIndex = ezInvalidIndex
 
ezUInt32 m_uiJoltBodyID = ezInvalidIndex
 
ezUInt32 m_uiObjectFilterID = ezInvalidIndex
 
- Protected Attributes inherited from ezComponent
const ezRTTIm_pMessageDispatchType = nullptr
 Messages will be dispatched to this type. Default is what GetDynamicRTTI() returns, can be redirected if necessary.
 

Additional Inherited Members

- Static Public Member Functions inherited from ezNoBase
static const ezRTTIGetStaticRTTI ()
 

Detailed Description

Base class for all Jolt actors.

An actor is an object that participates in the physical simulation. It is often also called a (rigid) body. An actor is made out of one or multiple shapes that define its geometry. Different types of actors differ in how they participate in the simulation.

Member Function Documentation

◆ DeserializeComponent()

void ezJoltActorComponent::DeserializeComponent ( ezWorldReader inout_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 ezComponent.

Reimplemented in ezJoltTriggerComponent, ezJoltDynamicActorComponent, ezJoltQueryShapeActorComponent, and ezJoltStaticActorComponent.

◆ OnDeactivated()

void ezJoltActorComponent::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 ezComponent.

Reimplemented in ezJoltTriggerComponent, ezJoltDynamicActorComponent, ezJoltQueryShapeActorComponent, and ezJoltStaticActorComponent.

◆ OnSimulationStarted()

void ezJoltActorComponent::OnSimulationStarted ( )
overrideprotectedvirtual

This method is called once for active components, at the start of the next world update, but only when the world is simulated.

This is the one preferred method to setup typical game logic. In a pure game environment there is no practical difference between OnActivated() and OnSimulationStarted(), as OnSimulationStarted() will be called right after OnActivated().

However, when a scene is open inside the editor, there is an important difference: OnActivated() is called once the component was created. OnSimulationStarted() is only called once the game simulation is started inside the editor. As an example, if a component starts a sound in OnActivated(), that sound will play right after the scene has been loaded into the editor. If instead the sound gets started in OnSimulationStarted(), it will only play once the user starts the game mode inside the editor.

Additionally, OnSimulationStarted() is only executed once, even if the ezWorld pauses and resumes world simulation multiple times. However, note that it will be called again after the component has been deactivated and is activated again.

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

Reimplemented from ezComponent.

Reimplemented in ezJoltTriggerComponent, ezJoltDynamicActorComponent, ezJoltQueryShapeActorComponent, and ezJoltStaticActorComponent.

Member Data Documentation

◆ m_uiCollisionLayer

ezUInt8 ezJoltActorComponent::m_uiCollisionLayer = 0

The collision layer determines with which other actors this actor collides.

Which collision layers collide with each other is configured through the ezCollisionFilterConfig.

See also
ezJoltCollisionFiltering::GetCollisionFilterConfig()

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