The base class for all aspects, providing an interface to its attached SimObject, and consequently, the engine's SceneSystem. More...

#include <sim_system.hpp>

Inheritance diagram for ToyMaker::BaseSimObjectAspect:

Public Member Functions
virtual	~BaseSimObjectAspect ()=default
	Destroys this object.

virtual void	simulationUpdate (uint32_t simStepMillis)
	Overriding this allows an aspect to respond to simulation updates.

virtual void	variableUpdate (uint32_t variableStepMillis)
	Overriding this allows an aspect to respond to variable updates.

bool	handleAction (const ActionData &actionData, const ActionDefinition &actionDefinition) override final
	Pipes an action received from the InputManager via our SimObject to all that action's handler methods on this aspect.

ViewportNode &	getLocalViewport ()
	Returns the closest ancestor viewport to this node, if one exists (which it should, since this shouldn't be called until this aspect is attached to an active SimObject).

Public Member Functions inherited from ToyMaker::SignalTracker
	SignalTracker ()
	Constructs a new SignalTracker object.

	SignalTracker (const SignalTracker &other)
	Constructs a new SignalTracker.

SignalTracker &	operator= (const SignalTracker &other)
	Copy assignment operator.

	SignalTracker (SignalTracker &&other)
	Moves resources from another SignalTracker into this one, invalidating them from the other.

SignalTracker &	operator= (SignalTracker &&other)
	Moves resources from another SignalTracker into this one, destroying this tracker's resources in the process.

void	connect (const std::string &theirSignal, const std::string &ourObserver, SignalTracker &other)
	Method that connects one of this objects SignalObservers to another tracker's Signal.

Protected Member Functions
	BaseSimObjectAspect (const BaseSimObjectAspect &other)=delete

	BaseSimObjectAspect (BaseSimObjectAspect &&other)=delete

SimObject &	getSimObject ()
	Returns the sim object that this aspect is attached to.

template<typename TComponent>
void	addComponent (const TComponent &component)
	Adds a component of some type to the underlying entity.

template<typename TComponent>
bool	hasComponent ()
	Tests whether a component of some specific type is present on the object.

template<typename TComponent>
void	updateComponent (const TComponent &component)
	Updates the value of a component belonging to this object to a new one.

template<typename TComponent>
TComponent	getComponent (const float simulationProgress=1.f) const
	Gets the value of a component belonging to this object.

template<typename TComponent>
void	removeComponent ()
	Removes a component of some type belonging to the underlying SimObject.

void	addAspect (const nlohmann::json &jsonAspectProperties)
	Adds a new aspect to the underlying SimObject constructed based on its properties in JSON.

void	addAspect (const BaseSimObjectAspect &aspect)
	Adds a new aspect to the underlying SimObject copied from an already existing aspect.

template<typename TSimObjectAspect>
bool	hasAspect () const
	Tests whether an aspect of a particular type is attached to the underlying SimObject.

bool	hasAspect (const std::string &aspectType) const
	Tests whether an aspect of a particular type is attached to the underlying SimObject.

template<typename TSimObjectAspect>
TSimObjectAspect &	getAspect ()
	Gets an aspect of a particular type belonging to the underlying SimObject.

BaseSimObjectAspect &	getAspect (const std::string &aspectType)
	Gets (a base class reference to) an aspect of a particular type belonging to the underlying SimObject.

template<typename TSimObjectAspect>
void	removeAspect ()
	Removes an aspect from the underlying SimObject.

void	addOrReplaceAspect (const BaseSimObjectAspect &aspect)
	Adds or replaces an aspect on the underlying SimObject with a new aspect constructed as a copy of another.

void	addOrReplaceAspect (const nlohmann::json &jsonAspectProperties)
	Adds or replaces an aspect on the underlying SimObject with a new aspect constructed from its JSON description.

std::weak_ptr< FixedActionBinding >	declareFixedActionBinding (const std::string &context, const std::string &action, std::function< bool(const ActionData &, const ActionDefinition &)>)
	Binds some method (or any function) present on this object to an action generated by the InputManager.

EntityID	getEntityID () const
	Gets the ID of the ECSWorld Entity belonging to our SimObject.

std::weak_ptr< ECSWorld >	getWorld () const
	Gets a weak reference to the ECSWorld to which our SimObject's entity belongs.

virtual std::string	getAspectTypeName () const =0
	Overridable function for fetching the aspect type string of an aspect.

Static Protected Member Functions
template<typename TSimObjectAspectDerived>
static void	registerAspect ()
	Registers an implementation of an aspect with the SimSystem.

Private Types
enum	AspectState : uint8_t { ATTACHED =1 , ACTIVE =2 }
	Enum for mask values representing the readiness of an aspect.

Private Member Functions
void	activateFixedActionBindings ()
	Called when an aspect has just been activated to bind its handler method to its associated action.

void	deactivateFixedActionBindings ()
	Called when an aspect's SimObject has been deactivated, retiring all currently active action bindings.

void	onAttached_ ()

void	onDetached_ ()

void	onActivated_ ()

void	onDeactivated_ ()

virtual void	onAttached ()
	Callback for when an aspect has just been attached to an object (but which hasn't yet been activated).

virtual void	onDetached ()
	Callback for when an aspect is about to be removed from an object (after it has been deactivated).

virtual void	onActivated ()
	Callback for when the aspect is activated (after it is attached to an active SimObject, or if the SimObject it was attached to has just been activated)

virtual void	onDeactivated ()
	Callback for when the aspect is deactivated (just prior to being detached, or when its SimObject has been deactivated).

bool	isAttached ()
	Tests whether this aspect is attached to a SimObject.

bool	isActive ()
	Tests whether the SimObject this aspect is attached to is active on the SceneSystem and the SimSystem.

void	attach (SimObject *owner)
	Causes this aspect to be detached from its previous owner and to be attached to a new one.

void	detach ()
	Causes this aspect to be disconnected from its current SimObject.

virtual std::shared_ptr< BaseSimObjectAspect >	clone () const =0
	A method which must be overridden to specify how a new aspect should be constructed as a copy of this one.

Private Attributes
std::map< std::pair< std::string, std::string >, std::shared_ptr< FixedActionBinding >, std::less< std::pair< std::string, std::string > > >	mFixedActionBindings {}
	The set of action bindings owned by this aspect.

SimObject *	mSimObject { nullptr }
	The SimObject underlying this aspect.

uint8_t	mState { 0x0 }
	Value representing the readiness of this aspect.

Friends
class	SimObject

Detailed Description

The base class for all aspects, providing an interface to its attached SimObject, and consequently, the engine's SceneSystem.

See also: SimObjectAspect

Member Function Documentation

◆ addAspect() [1/2]

void BaseSimObjectAspect::addAspect ( const BaseSimObjectAspect & aspect )

protected

Adds a new aspect to the underlying SimObject copied from an already existing aspect.

Parameters

aspect The aspect being copied.

◆ addAspect() [2/2]

void BaseSimObjectAspect::addAspect ( const nlohmann::json & jsonAspectProperties )

protected

Adds a new aspect to the underlying SimObject constructed based on its properties in JSON.

Parameters

jsonAspectProperties The properties of the aspect in JSON.

◆ addComponent()

template<typename TComponent>

void ToyMaker::BaseSimObjectAspect::addComponent ( const TComponent & component )

protected

Adds a component of some type to the underlying entity.

Template Parameters

TComponent The type of component being added.

Parameters

component The value of the component when it is added.

◆ addOrReplaceAspect() [1/2]

void BaseSimObjectAspect::addOrReplaceAspect ( const BaseSimObjectAspect & aspect )

protected

Adds or replaces an aspect on the underlying SimObject with a new aspect constructed as a copy of another.

Parameters

aspect The aspect being copied.

◆ addOrReplaceAspect() [2/2]

void BaseSimObjectAspect::addOrReplaceAspect ( const nlohmann::json & jsonAspectProperties )

protected

Adds or replaces an aspect on the underlying SimObject with a new aspect constructed from its JSON description.

Parameters

jsonAspectProperties The JSON description of the aspect, including its type and value.

◆ attach()

void BaseSimObjectAspect::attach ( SimObject * owner )

private

Causes this aspect to be detached from its previous owner and to be attached to a new one.

Parameters

owner The new owner of this aspect.

◆ clone()

virtual std::shared_ptr< BaseSimObjectAspect > ToyMaker::BaseSimObjectAspect::clone ( ) const

privatepure virtual

A method which must be overridden to specify how a new aspect should be constructed as a copy of this one.

Returns: std::shared_ptr<BaseSimObjectAspect> The newly constructed aspect.

Implemented in ToyMaker::QueryClick, ToyMaker::RenderDebugViewer, ToyMaker::UIButton, ToyMaker::UIImage, ToyMaker::UIPanel, and ToyMaker::UIText.

◆ declareFixedActionBinding()

std::weak_ptr< FixedActionBinding > BaseSimObjectAspect::declareFixedActionBinding	(	const std::string &	context,
		const std::string &	action,
		std::function< bool(const ActionData &, const ActionDefinition &)>	handler )

protected

Binds some method (or any function) present on this object to an action generated by the InputManager.

Usage

// NOTE: Class inherited from SimObjectAspect
class QueryClick: public ToyMaker::SimObjectAspect<QueryClick>, public IUsePointer {
 
    // ...
 
    // NOTE: Handler for UI Tap actions
    bool onLeftClick(const ToyMaker::ActionData& actionData, const ToyMaker::ActionDefinition& actionDefinition);
 
    // NOTE: Binding responsible for forwarding UI Tap actions to onLeftClick()
    std::weak_ptr<ToyMaker::FixedActionBinding> handlerLeftClick {
        declareFixedActionBinding(
            "UI",
            "Tap",
            [this](const ToyMaker::ActionData& actionData, const ToyMaker::ActionDefinition& actionDefinition) {
                return this->onLeftClick(actionData, actionDefinition);
            }
        )
    };    
 
    // ...
 
};

Parameters

context	The name of the context of the bound action.
action	The name of the action itself.

Returns: std::weak_ptr<FixedActionBinding> A weak pointer to the object representing the binding itself.

◆ getAspect() [1/2]

template<typename TSimObjectAspect>

TSimObjectAspect & ToyMaker::BaseSimObjectAspect::getAspect ( )

protected

Gets an aspect of a particular type belonging to the underlying SimObject.

Template Parameters

TSimObjectAspect The type of the aspect being retrieved.

Returns: TSimObjectAspect& The retrieved aspect.

◆ getAspect() [2/2]

BaseSimObjectAspect & BaseSimObjectAspect::getAspect ( const std::string & aspectType )

protected

Gets (a base class reference to) an aspect of a particular type belonging to the underlying SimObject.

Parameters

aspectType The aspect type name of the aspect being retrieved.

Returns: BaseSimObjectAspect& The retrieved aspect.

◆ getAspectTypeName()

virtual std::string ToyMaker::BaseSimObjectAspect::getAspectTypeName ( ) const

protectedpure virtual

Overridable function for fetching the aspect type string of an aspect.

Returns: std::string This aspect's aspect type string.

Implemented in ToyMaker::SimObjectAspect< TSimObjectAspectDerived >, ToyMaker::SimObjectAspect< QueryClick >, ToyMaker::SimObjectAspect< RenderDebugViewer >, ToyMaker::SimObjectAspect< UIButton >, ToyMaker::SimObjectAspect< UIImage >, ToyMaker::SimObjectAspect< UIPanel >, and ToyMaker::SimObjectAspect< UIText >.

◆ getComponent()

template<typename TComponent>

TComponent ToyMaker::BaseSimObjectAspect::getComponent ( const float simulationProgress = 1.f ) const

protected

Gets the value of a component belonging to this object.

Template Parameters

TComponent The type of component being retrieved.

Parameters

simulationProgress The progress towards the next simulation step after the previous one represented as a value between 0 and 1.

Returns: TComponent The retrieved component value.

◆ getEntityID()

EntityID BaseSimObjectAspect::getEntityID ( ) const

protected

Gets the ID of the ECSWorld Entity belonging to our SimObject.

Returns: EntityID This object's entity's ECS entity ID.

◆ getLocalViewport()

ViewportNode & BaseSimObjectAspect::getLocalViewport ( )

Returns the closest ancestor viewport to this node, if one exists (which it should, since this shouldn't be called until this aspect is attached to an active SimObject).

Returns: ViewportNode& A reference to this aspect's node's closest ancestor viewport.

◆ getSimObject()

SimObject & BaseSimObjectAspect::getSimObject ( )

protected

Returns the sim object that this aspect is attached to.

Returns: SimObject& A reference to the sim object to which this aspect belongs.

◆ getWorld()

std::weak_ptr< ECSWorld > BaseSimObjectAspect::getWorld ( ) const

protected

Gets a weak reference to the ECSWorld to which our SimObject's entity belongs.

Returns: std::weak_ptr<ECSWorld> The ECSWorld our SimObject's entity belongs to.

◆ handleAction()

bool BaseSimObjectAspect::handleAction	(	const ActionData &	actionData,
		const ActionDefinition &	actionDefinition )

finaloverridevirtual

Pipes an action received from the InputManager via our SimObject to all that action's handler methods on this aspect.

Parameters

actionData	The data describing the action event.
actionDefinition	The definition of the action event.

Return values

true	The action was handled by this aspect;
false	The action was not handled by this aspect;

Todo: Shouldn't this be private? Will something bad happen if we make this private?

Reimplemented from ToyMaker::IActionHandler.

◆ hasAspect() [1/2]

template<typename TSimObjectAspect>

bool ToyMaker::BaseSimObjectAspect::hasAspect ( ) const

protected

Tests whether an aspect of a particular type is attached to the underlying SimObject.

Template Parameters

TSimObjectAspect The type of aspect whose existence is being tested.

Return values

true	An aspect of the specified type exists;
false	No aspect of the type specified exists;

◆ hasAspect() [2/2]

bool BaseSimObjectAspect::hasAspect ( const std::string & aspectType ) const

protected

Tests whether an aspect of a particular type is attached to the underlying SimObject.

Parameters

aspectType The aspect type name of the aspect.

Return values

true	An aspect of this type exists;
false	No aspect of this type exists;

◆ hasComponent()

template<typename TComponent>

bool ToyMaker::BaseSimObjectAspect::hasComponent ( )

protected

Tests whether a component of some specific type is present on the object.

Template Parameters

TComponent The type of component whose existence is being tested.

Return values

true	The component exists;
false	The component does not exist;

◆ isActive()

bool ToyMaker::BaseSimObjectAspect::isActive ( )

inlineprivate

Tests whether the SimObject this aspect is attached to is active on the SceneSystem and the SimSystem.

Return values

true	The underlying SimObject (and therefore this aspect) is active.
false	The underlying SimObject (and therefore this aspect) is inactive, or the SimObject does not exist.

◆ isAttached()

bool ToyMaker::BaseSimObjectAspect::isAttached ( )

inlineprivate

Tests whether this aspect is attached to a SimObject.

Return values

true	This aspect is attached to a SimObject;
false	This aspect is untethered;

◆ onActivated()

virtual void ToyMaker::BaseSimObjectAspect::onActivated ( )

inlineprivatevirtual

Callback for when the aspect is activated (after it is attached to an active SimObject, or if the SimObject it was attached to has just been activated)

Reimplemented in ToyMaker::UIButton, ToyMaker::UIImage, ToyMaker::UIPanel, and ToyMaker::UIText.

◆ registerAspect()

template<typename TSimObjectAspectDerived>

static void ToyMaker::BaseSimObjectAspect::registerAspect ( )

inlinestaticprotected

Registers an implementation of an aspect with the SimSystem.

This gives the sim system a pointer to the function responsible for the construction of an aspect, allowing the aspect to be constructed by its description in a JSON scene file.

Template Parameters

TSimObjectAspectDerived The derived aspect's type.

See also: SimSystem

◆ removeAspect()

template<typename TSimObjectAspect>

void ToyMaker::BaseSimObjectAspect::removeAspect ( )

protected

Removes an aspect from the underlying SimObject.

Template Parameters

TSimObjectAspect The type of the aspect being removed.

◆ removeComponent()

template<typename TComponent>

void ToyMaker::BaseSimObjectAspect::removeComponent ( )

protected

Removes a component of some type belonging to the underlying SimObject.

Template Parameters

TComponent The type of component being removed.

◆ simulationUpdate()

virtual void ToyMaker::BaseSimObjectAspect::simulationUpdate ( uint32_t simStepMillis )

inlinevirtual

Overriding this allows an aspect to respond to simulation updates.

Parameters

simStepMillis The time by which the simulation should be advanced, in milliseconds.

See also: SceneSystem::simulationStep()

◆ updateComponent()

template<typename TComponent>

void ToyMaker::BaseSimObjectAspect::updateComponent ( const TComponent & component )

protected

Updates the value of a component belonging to this object to a new one.

Template Parameters

TComponent The type of component being updated.

Parameters

component The new value of the component.

◆ variableUpdate()

virtual void ToyMaker::BaseSimObjectAspect::variableUpdate ( uint32_t variableStepMillis )

inlinevirtual

Overriding this allows an aspect to respond to variable updates.

Parameters

variableStepMillis The time since the execution of the last frame, in milliseconds.

See also: SceneSystem::variableStep

Member Data Documentation

◆ mFixedActionBindings

std::map< std::pair<std::string, std::string>, std::shared_ptr<FixedActionBinding>, std::less<std::pair<std::string, std::string> > > ToyMaker::BaseSimObjectAspect::mFixedActionBindings {}

private

The set of action bindings owned by this aspect.

See also: declareFixedActionBinding()

◆ mState

uint8_t ToyMaker::BaseSimObjectAspect::mState { 0x0 }

private

Value representing the readiness of this aspect.

See also: AspectState

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

ToyMaker_Main/include/toymaker/engine/sim_system.hpp
ToyMaker_Main/src/sim_system.cpp

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Function Documentation

◆ addAspect() [1/2]

◆ addAspect() [2/2]

◆ addComponent()

◆ addOrReplaceAspect() [1/2]

◆ addOrReplaceAspect() [2/2]

◆ attach()

◆ clone()

◆ declareFixedActionBinding()

Usage

◆ getAspect() [1/2]

◆ getAspect() [2/2]

◆ getAspectTypeName()

◆ getComponent()

◆ getEntityID()

◆ getLocalViewport()

◆ getSimObject()

◆ getWorld()

◆ handleAction()

◆ hasAspect() [1/2]

◆ hasAspect() [2/2]

◆ hasComponent()

◆ isActive()

◆ isAttached()

◆ onActivated()

◆ registerAspect()

◆ removeAspect()

◆ removeComponent()

◆ simulationUpdate()

◆ updateComponent()

◆ variableUpdate()

Member Data Documentation

◆ mFixedActionBindings

◆ mState