DtMissileDistractionController Class Reference

DtMissileDistractionController is a component that looks for objects that could potentially distract the missile. More...

Inheritance diagram for DtMissileDistractionController:

Public Member Functions
	DtMissileDistractionController (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
	(const DtString&,DtVrfObject*,DtSimManager*,
virtual	~DtMissileDistractionController ()
	destructor
virtual bool	init ()
	Calls createPSR(), and initTargetConeGeometry().
virtual DtString	type () const
	Returns a string identifies the class type of component.
virtual void	tick ()
	Processes only if the simulation is not paused.
Public Member Functions inherited from DtControllerComponent
	DtControllerComponent (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
	(const DtString& name,
virtual	~DtControllerComponent ()
	destructor
virtual DtSimBaseRadio *	radio ()
	The radio this component is listening to.
virtual void	taskNotify (const DtSimTask &task)
	This is used by the entity to notify all controllers that a new task has been received.
virtual void	clearTask ()
	Called when you want to clear out this component's task state.
Public Member Functions inherited from DtSimComponent
	DtSimComponent (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
virtual	~DtSimComponent ()
	destructor
void	setParentSystem (DtComponentSystem *system)
	Sets the parent system of this component.
virtual bool	postAddComponentsInit ()
	Called after all components have been created, initialized and added to the component manager.
virtual void	preFirstTickInit ()
	This function can be overridden to initialize a component before it is ticked for the first time.
virtual void	postTick ()
	This function is called immediately after tick() is called.
virtual void	timedTick ()
	This version of tick checks to see if the time to tick has arrived.
virtual void	setMinTickPeriod (double minTickPeriod)
	specifies a minimum tick period (which can also be thought of as
virtual double	minTickPeriod () const
	access the minimum tick period
virtual void	setMinTickPeriodVariance (double minTickPeriodVariance)
	set the variance in the minimum tick time
virtual double	minTickPeriodVariance () const
	access the variance in the minimum tick period
virtual void	setNextTickTime (double nextTickTime)
	The next tick time is normally calculated internally.
virtual double	nextTickTime () const
	access the next tick time
virtual double	calculateNextTickTime () const
	The next tick time is equal to mySimManager->exerciseClock()-> approximateElapsedRealTime() + myMinTickPeriod + a random # between -myMinTickPeriodVariance/2.
virtual double	calculateFirstTickTime () const
	Returns the first time value that the component should tick at.
virtual void	setEntity (DtVrfObject *entity)
	The entity's state repository is the place that actuator components make updates and other components look to see our current state.
virtual DtSimComponent *	nextComponent ()
	List management functions.
virtual DtSimComponent *	prevComponent ()
virtual void	setListItem (DtListItem *item)
	Used by DtComponentList.
virtual DtListItem *	listItem ()
virtual void	putData (FILE *fp, int indentLevel=0)
	putData writes our type, which is provided by the virtual type accessor of the deriving class.
virtual DtlObjPtr	getData (DtlObjPtr args, const DtFilename &searchPath, const DtVariableBindingsList &variableBindings)
	getData is just used to get us past the type in the data stream, since it's not actual stored.
virtual void	addInputPort (DtInputPort *port)
	Adds this input port to the components input port list so that other components can look it up and attach to it.
virtual void	removeInputPort (DtInputPort *port)
virtual DtInputPort *	lookupInputPort (const DtString &portName)
	Returns a pointer to the input port registered on this component with the specified name.
virtual DtList	inputPortList () const
	Returns the list of DtInputPorts registered on this component.
virtual void	addOutputPort (DtOutputPort *port)
	Adds this output port to the components output port list so that other components can look it up and attach to it.
virtual void	removeOutputPort (DtOutputPort *port)
virtual DtOutputPort *	lookupOutputPort (const DtString &portName)
	Returns a pointer to the output port registered on this component with the specified name.
virtual DtList	outputPortList () const
	Returns the list of DtOutputPorts registered on this component.
virtual void	addInputPortGroup (DtInputPortGroup *group)
	Adds this input port to the components input port list so that other components can look it up and attach to it.
virtual void	removeInputPortGroup (DtInputPortGroup *group)
virtual DtInputPortGroup *	lookupInputPortGroup (const DtString &groupName)
	Returns a pointer the input port group registered on this component with the specified name.
virtual DtList	inputPortGroupList () const
	Returns the list of DtInputPortGroups registered on this component.
virtual void	addOutputPortGroup (DtOutputPortGroup *group)
	Adds this output port group to the components output port group list so that other components can look it up and attach to it.
virtual void	removeOutputPortGroup (DtOutputPortGroup *group)
virtual DtOutputPortGroup *	lookupOutputPortGroup (const DtString &groupName)
	Returns a pointer the output port group registered on this component with the specified name.
virtual DtList	outputPortGroupList () const
	Returns the list of DtOutputPortGroups registered on this component.
virtual int	priority () const
	Return the current connection priority for this component.
virtual void	setPriority (int priority)
	Sets a new connection priority for this component, and changes all current outgoing connections from this component to the new value.
double	dT () const
	This is the delta-t for this component, which may or may not be the same as the exerciseClock dT.
virtual void	setDT (double deltaT)
	Note that while dT is calculated internally, this makes it possible to 'lie' to the component about dT if necessary.
virtual void	setComponentDescriptor (DtComponentDescriptor *componentDescriptor)
	The component descriptor specified in the order of battle file or parameter file that was used to create this component.
virtual const DtComponentDescriptor *	componentDescriptor () const
virtual bool	tickWhileDestroyed () const
	If the component returns true here, it will be ticked regardless of the destroyed state of the host entity.
DtVrfProcessStateRepositoryManager *	psrManager ()
virtual DtString	componentFullName () const
virtual void	enable ()
	Is this component enabled or not.
virtual void	disable ()
	Is this component enabled or not.
virtual bool	isEnabled ()
	Is this component enabled or not.
virtual void	setIsEnabled (bool yesNo)
	Is this component enabled or not.
virtual DtOutputStream &	objectConsoleDebug () const
virtual DtOutputStream &	objectConsoleVerbose () const
virtual DtOutputStream &	objectConsoleInfo () const
virtual DtOutputStream &	objectConsoleWarn () const
virtual DtOutputStream &	objectConsoleError () const
virtual DtSimResourceManager &	resourceManager ()
virtual const DtSimResourceManager &	resourceManager () const
Public Member Functions inherited from DtReaderWriter
	DtReaderWriter ()
	default constructor
	DtReaderWriter (const DtString &name, DtReaderWriterRegistry *parentRegistry=NULL, bool readonly=false)
	real constructor Setting the readonly flag prevents object from writing itself to the stream.
	DtReaderWriter (const DtSymbolString &name, DtReaderWriterRegistry *parentRegistry=NULL, bool readonly=false)
	DtReaderWriter (const DtString &name, const DtReaderWriter &orig, DtReaderWriterRegistry *parentRegistry=NULL)
	copy constructor
	DtReaderWriter (const DtSymbolString &name, const DtReaderWriter &orig, DtReaderWriterRegistry *parentRegistry=NULL)
const DtReaderWriter &	operator= (const DtReaderWriter &orig)
	assignment operator
virtual	~DtReaderWriter ()
	destructor
virtual void	putSelf (FILE *fp, int indentLevel=0, bool writeUnspecified=false, const DtFilename &path=DtFilename::nullFilename())
	Top level call to write itself to file.
virtual void	getSelf (DtlObjPtr args, const DtFilename &searchPath=DtFilename::nullFilename(), const DtVariableBindingsList &variableBindings=nullVariableReference())
	Top level to read itself from an input stream.
virtual void	writeSelf (FILE *fp, int indentLevel=0, bool writeUnspecified=false, const DtFilename &path=DtFilename::nullFilename())
	Called from putSelf, calls myRegistry.putSelf which in turn calls putSelf on each reader/writer in the registry.
virtual DtSymbolString	name () const
	Accessor for name of this readable/writable object.
virtual void	addAlias (const DtSymbolString &alias)
	Add an alias as an alternative name for this object.
virtual bool	hasAlias (const DtSymbolString &alias)
virtual const aliasContainer &	aliases () const
virtual void	setReadonly (bool flag)
	Set read-only flag.
virtual bool	isReadonly () const
virtual bool	variableIsBound () const
virtual void	unbindVariable ()
	Sets the myVariableIsBound flag to false.
virtual void	setName (const DtString &)
	Set the name of the object.
virtual const char *	readerWriterType () const
	Used to supply a string type that this reader writer type is.
virtual DtString	prettyPrint () const
	Routine to return a human readable form of the reader/writer variable.
virtual void	bindVariables (DtVariableBindingsList variableBindings)
	Runs a variable binding pass on this reader writer and any of its children.
virtual std::list < DtVariableNameType >	unboundVariables () const
bool	invalid () const
virtual bool	hasChild (const DtReaderWriter *p) const
	Returns true if this variable has a child p in it's chain.
virtual void	setValueSpecified (bool specified, bool recurse=false)
	The specified flags are used for optional values.
virtual bool	valueSpecified () const
	The specified flags are used for optional values.
virtual bool	isVariableReference () const
	Specifies whether or not this reader writer is really a variable that is specified elsewhere.
virtual void	setIsVariableReference (bool value)
virtual DtSymbolString	variableName () const
	The variable name, if this object is a variable reference.
virtual void	setVariableName (const DtSymbolString variableName)
	The variable name, if this object is a variable reference.
const DtReaderWriterRegistry &	registry () const
	Collection of child DtReaderWriter nodes owned by this object.
DtReaderWriterRegistry &	registry ()
	Collection of child DtReaderWriter nodes owned by this object.

Static Public Member Functions
static DtSimComponent *	creator (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
	(const DtString&,DtVrfObject*,DtSimManager*,

Protected Member Functions
virtual DtMissileDistractionPSR *	createPSR ()
	Creates myProcessState data member, and adds it to our process state repository manager.
virtual const char *	defaultPSRType () const
virtual bool	initTargetConeGeometry ()
	Creates the geometry evaluator based on the target-cone-geometry entry in the descriptor, and the geometry evaluator factory.
virtual void	setupGeometryForDetection ()
	Sets up the current target cone geometry evaluator with the current position and orientation of the missile.
virtual void	setUpDistractingObjectsList ()
	Reads in the countermeasure types we are looking for from the descriptor and creates a search predicate that is passed to the vrfobjectmanager.
virtual DtVector	localTargetConePosition () const
	Uses the front of the missile as the apex for the target cone Frustrum will start from this point and extend out from the missile.
virtual bool	processObjects ()
	Checks detectability of each of the detectable objects.
virtual bool	detectObject (DtVrfObject *object, DtCounterMeasureDistractionEntry *entry)
virtual bool	objectWithinTargetConeGeometry (DtVrfObject *object) const
virtual bool	isMissileDistracted (DtCounterMeasureDistractionEntry *entry) const
Protected Member Functions inherited from DtControllerComponent
	DtControllerComponent ()
	default constructor
	DtControllerComponent (const DtControllerComponent &orig)
	copy constructor
const DtControllerComponent &	operator= (const DtControllerComponent &orig)
	assignment operator
virtual void	setRadio (DtSimBaseRadio *radio)
Protected Member Functions inherited from DtSimComponent
bool	testInvariant () const
virtual bool	createPortGroups ()
	Called by init.
virtual bool	createPorts ()
	Called by init.
virtual DtPhysicalWorld *	physicalWorld ()
	Gets the physical world that this component's entity exists in.
virtual const DtPhysicalWorld *	physicalWorld () const
virtual DtAttachedTerrain *	terrainAttachedTo ()
	Gets the terrain that this component's entity is attached to, if any.
virtual const DtAttachedTerrain *	terrainAttachedTo () const
virtual DtVrfObject *	entity ()
	Gets the entity.
virtual const DtVrfObject *	entity () const
virtual DtSimManager *	simManager ()
	Gets the sim manager.
virtual const DtSimManager *	simManager () const
virtual const Coordinate_System *	coordinateSystem () const
	Gets the coordinate system, as it should always exist if the physical world is in a valid state!
virtual Coordinate_System *	coordinateSystem ()
virtual DtVrfObjectStateRepository *	localStateRepository ()
	Gets the local state repository.
virtual const DtVrfObjectStateRepository *	localStateRepository () const
Protected Member Functions inherited from DtReaderWriter
virtual void	bindToRwAsVariable (const DtReaderWriter *rw)
	Copies values from the specified DtReaderWriter.
virtual void	bindLocalVariables (const DtVariableBindingsList &variableBindings)
	Checks to see if this RW object is a variable reference that can be bound using the provided bindings.

Protected Attributes
DtManagedObjectListConstPtr	myDistractingObjectList
const DtMissileDistractionControllerDescriptor *	myMissileDistractionControllerDescriptor
DtMissileDistractionPSR *	myProcessState
	Container for state data associated with this component.
DtMissileStateRepository *	myLocalSR
DtSpatialFilterEvaluator *	myTargetConeGeometryEvaluator
DtVector	myTargetConeApex
Protected Attributes inherited from DtControllerComponent
DtSimBaseRadio *	myRadio
	Controller components can send messages.
Protected Attributes inherited from DtSimComponent
DtVrfObject *	myEntity
DtVrfObjectStateRepository *	myLocalStateRepository
DtSimManager *	mySimManager
DtComponentSystem *	mySystem
	Pointer to the DtComponentSystem that this component belongs.
DtListItem *	myListItem
DtInputPortMap	myInputPortList
DtOutputPortMap	myOutputPortList
DtInputPortGroupMap	myInputPortGroupList
DtOutputPortGroupMap	myOutputPortGroupList
int	myPriority
double	myMinTickPeriod
double	myMinTickPeriodVariance
double	myNextTickTime
double	myLastTickSimTime
double	myDT
bool	myIsEnabled
	Indicates whether this component should be enabled for ticking or not.
bool	myFirstTick
	Initialized to true in the constructor, set to false by the first call to postTick.
const DtComponentDescriptor *	myComponentDescriptor
Protected Attributes inherited from DtReaderWriter
const DtSymbolString	myName
DtReaderWriterRegistry	myRegistry
bool	myValueSpecified
bool	myReadOnlyFlag
bool	myIsVariableReference
DtSymbolString	myVariableName
bool	myVariableIsBound
aliasContainer	myAliases
	Container for the aliases which represent alternative names for the object.
bool	myInvalid
	Set to true if there is a problem reading this item.

Private Member Functions
	DtMissileDistractionController ()
	default constructor; not implemented
	DtMissileDistractionController (const DtMissileDistractionController &orig)
	copy constructor; not implemented
const DtMissileDistractionController &	operator= (const DtMissileDistractionController &orig)
	assignment operator; not implemented

Additional Inherited Members
Public Types inherited from DtReaderWriter
typedef std::vector < DtSymbolString >	aliasContainer
typedef std::vector < DtSymbolString >::iterator	aliasIter
typedef std::vector < DtSymbolString > ::const_iterator	aliasConstIter
typedef std::pair < DtSymbolString, DtString >	DtVariableNameType
Protected Types inherited from DtSimComponent
typedef std::map< DtString, DtInputPort * >	DtInputPortMap
typedef std::map< DtString, DtOutputPort * >	DtOutputPortMap
typedef std::map< DtString, DtInputPortGroup * >	DtInputPortGroupMap
typedef std::map< DtString, DtOutputPortGroup * >	DtOutputPortGroupMap
Static Protected Attributes inherited from DtSimComponent
static DtSimComponentFactory *	myFactory

Detailed Description

DtMissileDistractionController is a component that looks for objects that could potentially distract the missile.

End User Description: Manages a filtered list of detectable countermeasures. Only looks for the types of counter measures specified in the descriptor. Checks if any are in the target cone of the missile, i.e. close enough to the target to confuse the missile. This target cone is configured in the descriptor and should define the cone within which the missile can redirect itself and still hit the new target. If within this cone will check if the signature of the counter measure is strong enough to confuse, and finally it will do a probability check to determine if in fact the missile will be confused and if so will reset the missile's target. Once the missile has changed targets it will stop looking since presumably the entity that launched the countermeasure has performed its evasive manuevers. This is configurable in the descriptor however. Default is to stop looking once fooled.

Uses Descriptor Type: DtMissileDistractionControllerDescriptor.

Constructor & Destructor Documentation

DtMissileDistractionController::DtMissileDistractionController ( )

private

default constructor; not implemented

DtMissileDistractionController::DtMissileDistractionController ( const DtMissileDistractionController &  orig )

private

copy constructor; not implemented

DtMissileDistractionController::DtMissileDistractionController	(	const DtString &	name,
		DtVrfObject *	owner,
		DtSimManager *	simManager,
		DtComponentDescriptor *	desc = 0,
		DtReaderWriterRegistry *	parentRegistry = 0
	)

(const DtString&,DtVrfObject*,DtSimManager*,

Parameters

name	Reader writer name of this component.
owner	The DtVrfObject that owns this component
simManager	The simulation manager (provides access to terrain, message interface, simulation clock).
desc	The component descriptor used to initialize this component.
parentRegistry	Pointer to the parent reader writer registry (the containing object that reads/writes this object).

(const DtString&,DtVrfObject*,DtSimManager*, DtComponentDescriptor*,DtReaderWriterRegistry* parentRegistry)

virtual DtMissileDistractionController::~DtMissileDistractionController ( )

virtual

destructor

Member Function Documentation

const DtMissileDistractionController& DtMissileDistractionController::operator= ( const DtMissileDistractionController &  orig )

private

assignment operator; not implemented

virtual bool DtMissileDistractionController::init ( )

virtual

Calls createPSR(), and initTargetConeGeometry().

This must be called after construction and before the controller is used on an entity.

Reimplemented from DtControllerComponent.

virtual DtString DtMissileDistractionController::type ( ) const

virtual

Returns a string identifies the class type of component.

Type values are defined in compTypes.h. DtSimComponent creation functions are registered with the DtSimComponentFactory using the type values as the key.

Returns

DtMissileDistractionControllerType

Reimplemented from DtControllerComponent.

virtual void DtMissileDistractionController::tick ( )

virtual

Processes only if the simulation is not paused.

Calls clearObjectRangeCache(). Calls setupGeometryForDetection() Calls processObjects().

Reimplemented from DtSimComponent.

static DtSimComponent* DtMissileDistractionController::creator ( const DtString &  name, DtVrfObject *  owner, DtSimManager *  simManager, DtComponentDescriptor *  desc = 0, DtReaderWriterRegistry *  parentRegistry = 0  )

static

(const DtString&,DtVrfObject*,DtSimManager*,

Parameters

name	Reader writer name of this component.
owner	The DtVrfObject that owns this component
simManager	The simulation manager (provides access to terrain, message interface, simulation clock).
desc	The component descriptor used to initialize this component.
parentRegistry	Pointer to the parent reader writer registry (the containing object that reads/writes this object).

(const DtString&,DtVrfObject*,DtSimManager*, DtComponentDescriptor*,DtReaderWriterRegistry* parentRegistry)

Returns

New instance of this class.

virtual DtMissileDistractionPSR* DtMissileDistractionController::createPSR ( )

protectedvirtual

Creates myProcessState data member, and adds it to our process state repository manager.

Passes in the name and type specified in the component descriptor (if they exist) to the DtVrfProcessStateRepository::createRepository factory method. If name and/or type is not specified, uses the appropriate default strings defined in procSRTypes.h.

virtual const char* DtMissileDistractionController::defaultPSRType ( ) const

protectedvirtual

Returns

DtVrfMissileDistractionControllerProcessStateRepositoryType. Derived classes may override this to return their own default PSR type, if a different PSR type is desired.

virtual bool DtMissileDistractionController::initTargetConeGeometry ( )

protectedvirtual

Creates the geometry evaluator based on the target-cone-geometry entry in the descriptor, and the geometry evaluator factory.

Can use range, frustrum or both

virtual void DtMissileDistractionController::setupGeometryForDetection ( )

protectedvirtual

Sets up the current target cone geometry evaluator with the current position and orientation of the missile.

Called once per detection cycle.

virtual void DtMissileDistractionController::setUpDistractingObjectsList ( )

protectedvirtual

Reads in the countermeasure types we are looking for from the descriptor and creates a search predicate that is passed to the vrfobjectmanager.

It will then return a list of all the objects that match our predicate that exist in the simulation.

virtual DtVector DtMissileDistractionController::localTargetConePosition ( ) const

protectedvirtual

Uses the front of the missile as the apex for the target cone Frustrum will start from this point and extend out from the missile.

virtual bool DtMissileDistractionController::processObjects ( )

protectedvirtual

Checks detectability of each of the detectable objects.

First checks if this object has already been check to see if it could distract the missile. The process state keeps a list of all the objects that have already been checked. If the object is on the list there's nothing more to be done. We move on to the next object. If it is not on the list, call detectObject. If the object is detected it will be then be checked to see if the object will distract the missile. If so we reset our missile's target to the object and set the process state's amDistracted parameter. Once the missile is distracted we don't need to keep checking. After the distraction check is made we add the object to the process state's verified checked list.

virtual bool DtMissileDistractionController::detectObject ( DtVrfObject *  object, DtCounterMeasureDistractionEntry *  entry  )

protectedvirtual

Returns

true if the specified object should be detected by the sensor, when it has not been detected on the previous detection cycle. Deriving classes should override this to implement their own detection constraints. This implementation returns true if objectWithinSensorGeometry() returns true, and the entity meets the detectDestroyedObjects criteria.

virtual bool DtMissileDistractionController::objectWithinTargetConeGeometry ( DtVrfObject *  object ) const

protectedvirtual

Returns

true only if the specified object is within the defined geometry of the sensor. Uses the sensor geometry evaluator.

virtual bool DtMissileDistractionController::isMissileDistracted ( DtCounterMeasureDistractionEntry *  entry ) const

protectedvirtual

Member Data Documentation

DtManagedObjectListConstPtr DtMissileDistractionController::myDistractingObjectList

protected

const DtMissileDistractionControllerDescriptor* DtMissileDistractionController::myMissileDistractionControllerDescriptor

protected

DtMissileDistractionPSR* DtMissileDistractionController::myProcessState

protected

Container for state data associated with this component.

This state is saved and restored as part of a scenario (or checkpoint).

DtMissileStateRepository* DtMissileDistractionController::myLocalSR

protected

DtSpatialFilterEvaluator* DtMissileDistractionController::myTargetConeGeometryEvaluator

protected

DtVector DtMissileDistractionController::myTargetConeApex

protected

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

• include/vrfmodel/missileDistractionController.h