VR-Forces 4.1 Class Documentation
List of all members | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
DtSurfaceEntityMoveAlongController Class Reference

DtSurfaceEntityMoveAlongController is a controller that models movement of a ship along a route. More...

Inheritance diagram for DtSurfaceEntityMoveAlongController:
Inheritance graph
[legend]

Public Member Functions

 DtSurfaceEntityMoveAlongController (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString&,DtVrfObject*,DtSimManager*,
virtual ~DtSurfaceEntityMoveAlongController ()
 Destructor.
virtual bool init ()
 Creates myControlPoint.
virtual DtString type () const
 Returns a string identifies the class type of component.
virtual void clearTask ()
 Calls down to the base class and then calls allowDeactivation() on mySurfaceControlPortGroup.
virtual void processMoveAlongTask (DtSimMessage *msg)
 Retrives the route name from the task message.
virtual void processRouteChanged (DtVrfObject *obj)
 Handles changes to the verticies in the route.
virtual bool atGoal ()
 Overridden to head to the next vertex in the route every time a vertex is reached until the end of the route is reached.
virtual bool passedGoal ()
 Overridden to head to the next vertex in the route every time a vertex is reached until the end of the route is reached.
virtual void doMoving (double desiredSpeed)
 Overriden to call sailTo during route traversal until moving towards the the final point in the route at which time driftTo is called instead so the vessel will drift to a stop at the final vertex.
virtual bool targetNextVertex ()
 Advance to the next vertex in the route state.
- Public Member Functions inherited from DtSurfaceEntityMoveToController
 DtSurfaceEntityMoveToController (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString&,DtVrfObject*,DtSimManager*,
virtual ~DtSurfaceEntityMoveToController ()
 destructor
virtual void tick ()
 Takes control of the surface entity output port group and determines the progress controls required to move the ship to the destination waypoint.
virtual void setupGoalVector (const DtVector &goalPosition)
 Updates myGoalVector.
virtual bool nearGoal ()
 Determines if the entity is within the near-distance parameter to the waypoint.
virtual double findDesiredSpeed ()
virtual void processMoveToTask (DtSimMessage *msg)
 Retrieves the name of the target waypoint from the task message.
- Public Member Functions inherited from DtSurfaceEntityPilotController
 DtSurfaceEntityPilotController (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString&,DtVrfObject*,DtSimManager*,
virtual ~DtSurfaceEntityPilotController ()
 Destructor.
virtual bool createSurfaceControlPortGroup ()
 Creates the surface control output port group.
virtual bool createThrottlePort ()
 Creates the throttle output port and adds it to mySurfaceControlPortGroup.
virtual bool createRudderPort ()
 Creates the rudder output port and adds it to mySurfaceControlPortGroup.
virtual
DtConstrainedAnalogOutputPort
throttlePort () const
 Throttle port accessor.
virtual
DtConstrainedAnalogOutputPort
rudderPort () const
 Rudder port accessor.
virtual void sailTo (const DtVector &destination, double speed)
 Sets the controls needed to sail towards the given destination at the given speed.
virtual void driftTo (const DtVector &destination, double speed)
 Sets the controls needed to sail towards the given destination at the given speed for as long as possible until the engines are cut at a point which allows the ship to drift to the desired destination.
virtual double calculateControlForTurn (double yawAngle)
 Calculates the rudder control for a given turn angle.
virtual double calculateControlForThrottle (double desiredSpeed)
 Calculates the throttle control needed to reach the desired speed.
virtual double calculateControlForThrottle (double desiredSpeed, double distance)
 Calculates the throttle control needed to reach the desired speed without overshooting the given distance.
virtual void emergencyStop ()
 Uses the throttle to stop the vessel as quickly as possible.
- Public Member Functions inherited from DtSingleTaskControllerComponent
 DtSingleTaskControllerComponent (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *compDesc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString& name,
virtual ~DtSingleTaskControllerComponent ()
 destructor
virtual void postTick ()
 Override to check if we're tasked and we want to give up (only performs the check if we're in play mode (dT() > 0)).
virtual bool beginProcessingTask (const DtTaskMessage &task, DtSimTaskStatePtr taskState)
 Called by the task manager when this controller should start executing the specified task.
virtual void taskNotify (const DtSimTask &task)
 This is called to let us know when some other component receives a task In the case of this component, we don't care what the task actually is.
virtual void taskComplete (bool success=true)
 If we are currently tasked, this will cause us to notify the entity that we're done and delete the task.
virtual int sendSubtask (DtSimTask &task)
 Sends subtask to ourself.
virtual void clearSubtask (int subtaskId)
 Clears subtask with the given subtaskId (subtaskId is returned sendSubtask()).
virtual void addPendingSubtaskId (int subtaskId)
 Adds given subtask Id to list of pending subtasks.
virtual bool findPendingSubtaskId (int subtaskId)
 Checks to see if given subtaskId exists in our list of pending subtasks.
virtual void removePendingSubtaskId (int subtaskId)
 Removes pending subtask from list of subtasks for this component.
virtual void removeAllPendingSubtaskIds ()
 Clear all pending subtasks from our list of subtasks.
virtual std::vector< int > currentPendingSubstaskIds () const
 Returns the list of all currently pending subtask ids for this controller.
virtual void clearCurrentTaskMessage ()
 Returns the current subtask with the specified id.
virtual DtTaskMessagecurrentTaskMessage () const
 Get a pointer to the message that was used to task this entity.
virtual DtSimTaskStatePtr currentTaskState () const
virtual void giveUpTask ()
 Called when controller is tasked and decideToGiveUp() returns true.
virtual bool taskActive (int taskId) const
 
virtual bool clearTopLevelTasks ()
 If this controller has any top level tasks (not subtasks), they are cleared.
virtual void clearConflictingTopLevelTasks (const DtSimTaskMessageType &conflictType)
 Clears any top level tasks on this controller that conflict with the conflict task type.
virtual void clearTasksByType (const DtSimTaskMessageType &taskType)
 Clears any tasks of the specified type running in this controller.
virtual void clearTaskById (int taskId)
 Clears any task of the specified ID running in this controller.
virtual std::list
< DtTaskMessage * > 
currentTaskMessages () const
 
virtual DtTaskWithTaskStateListPtr topLevelTasks () const
 
- Public Member Functions inherited from DtTaskControllerComponent
 DtTaskControllerComponent (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *compDesc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString& name,
virtual ~DtTaskControllerComponent ()
 destructor
virtual bool showCurrentTaskInGui () const
virtual void setRadio (DtSimBaseRadio *radio)
 Calls registerTaskMsgCallbacks.
virtual void addTaskProcessorCallback (const DtSimTaskMessageType &taskType, DtTaskMessageCallbackFcn fcn, void *usr)
 Adds a new function for processing the specified task type.
virtual void addTaskProcessorCallback (const DtSimTaskMessageType &taskType, DtMessageCallbackFcn fcn, void *usr)
 Deprecated form of addTaskProcessorCallback.
virtual void removeTaskProcessorCallback (const DtSimTaskMessageType &taskType, DtMessageCallbackFcn fcn, void *usr)
 Undoes anything done by addTaskProcessorCallback().
virtual void removeTaskProcessorCallback (const DtSimTaskMessageType &taskType, DtTaskMessageCallbackFcn fcn, void *usr)
 Deprecated form of removeTaskProcessorCallback.
virtual void enable ()
 Overridden to call registerTaskMsgCallbacks().
virtual void disable ()
 Overridden to 1) remove any task message callbacks registered by this controller 2) call clear task.
virtual void sendTaskCanceled (DtTaskMessage *taskMsg)
 Sends the task canceled report for the specified message.
virtual void setTasked (bool tasked)
 The current tasked state of this controller.
virtual bool tasked () const
 The current tasked state of this controller.
- 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 DtSimBaseRadioradio ()
 The radio this component is listening to.
- 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 void preFirstTickInit ()
 This function can be overridden to initialize a component before it is ticked for the first time.
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 DtSimComponentnextComponent ()
 List management functions.
virtual DtSimComponentprevComponent ()
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 DtInputPortlookupInputPort (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 DtOutputPortlookupOutputPort (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 DtInputPortGrouplookupInputPortGroup (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 DtOutputPortGrouplookupOutputPortGroup (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.
DtVrfProcessStateRepositoryManagerpsrManager ()
virtual DtString componentFullName () const
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 DtSimResourceManagerresourceManager ()
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 DtReaderWriteroperator= (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 aliasContaineraliases () 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 DtReaderWriterRegistryregistry () const
 Collection of child DtReaderWriter nodes owned by this object.
DtReaderWriterRegistryregistry ()
 Collection of child DtReaderWriter nodes owned by this object.

Static Public Member Functions

static void moveAlongCallback (DtSimMessage *msg, void *usr)
 Called when a move along message is received.
static void routeChangedCallback (DtVrfObject *obj, void *user)
 Calls processRouteChanged().
static void objectAboutToBeRemovedCallback (DtVrfObject *obj, void *usr)
static DtSimComponentcreator (const DtString &name, DtVrfObject *owner, DtSimManager *simManager, DtComponentDescriptor *desc=0, DtReaderWriterRegistry *parentRegistry=0)
 (const DtString&,DtVrfObject*,DtSimManager*,
- Static Public Member Functions inherited from DtSurfaceEntityMoveToController
static void moveToCallback (DtSimMessage *msg, void *user)
 Called when a move to message is received.

Protected Member Functions

 DtSurfaceEntityMoveAlongController ()
 default constructor; not implemented
 DtSurfaceEntityMoveAlongController (const DtSurfaceEntityMoveAlongController &orig)
 copy constructor; not implemented
const
DtSurfaceEntityMoveAlongController
operator= (const DtSurfaceEntityMoveAlongController &orig)
 assignment operator; not implemented
virtual bool setupRoute ()
 Updates the route state in the process state repository.
virtual bool setupControlPoint ()
 Overridden to synchronize myControlPoint with the current vertex in the route.
virtual void registerTaskMsgCallbacks ()
 Registers interest in move along tasks by calling addTaskProcessorCallback with moveAlongCallback as the function pointer and the 'this' pointer as the user data.
virtual void emptyVertexList ()
 Removes and deletes vertices from the vertex list in process state repository (calls process state repository's emptyRouteVertices()).
virtual void processObjectAboutToBeRemoved (DtVrfObject *obj)
- Protected Member Functions inherited from DtSurfaceEntityMoveToController
virtual double distanceSquaredToDestination2D (const DtVector &current) const
 Returns distance squared from destination point to current location.
virtual void getLocalDestination (DtVector &local) const
- Protected Member Functions inherited from DtSurfaceEntityPilotController
virtual bool createPortGroups ()
 Overridden to call createSurfaceControlPortGroup().
virtual bool createPorts ()
 Overridden to call createThrottlePort() and createRudderPort().
virtual void lookupAndCacheProcessSR ()
 This function looks up a process state repository in the process state repository manager by name, and caches a pointer to it in myProcessState.
virtual bool postAddComponentsInit ()
 Calls lookupAndCacheProcessSR(), to look up our process state repository after all of the components have been created and loaded.
virtual bool decideToGiveUpTask () const
 If the entity is embarked and the target of the current movement task is not embarked on the same object return true, and otherwise return a call to the base class.
 DtSurfaceEntityPilotController ()
 default constructor; not implemented
 DtSurfaceEntityPilotController (const DtSurfaceEntityPilotController &orig)
 copy constructor; not implemented
const
DtSurfaceEntityPilotController
operator= (const DtSurfaceEntityPilotController &orig)
 assignment operator; not implemented
- Protected Member Functions inherited from DtSingleTaskControllerComponent
virtual void clearPendingSubtasks ()
 Iterates over collection of all pending subtasks for this controller, and calls clearSubtask() for each subtask type.
virtual void clearSubtasksByType (const DtSimTaskMessageType &taskType)
 Clear all subtasks of a given type.

Protected Attributes

DtVrfObjectmyRoute
 This is looked up once per tick - assumed unchanging while we have control.
bool myRouteHasChanged
 This gets set to true when a modifyRoute message for the route we're following is received.
- Protected Attributes inherited from DtSurfaceEntityMoveToController
DtVrfObjectmyControlPoint
 Pointer to the target waypoint.
DtVector myControlPointLastLocation
 Stores last known location of the waypoint.
DtVector myGoalVector
 Maintained by setupGoalVector()
bool myAtGoal
bool myNearGoal
bool myPassedGoal
- Protected Attributes inherited from DtSurfaceEntityPilotController
DtSurfaceEntityStateRepositorymySurfaceEntityState
DtSurfaceEntityPilotControllerDescriptormyDescriptor
double myLastDistanceSquared
double myDistanceSquared
DtSurfaceMovementPSRmyProcessState
 Pointer to a process state repository used to store state data associated with this component.
DtBooleanInputPortmySmallVelocityClampedInputPort
 Input Port Name: clamp-small-vel-zero
Input Port Description:
Input Port Range:
Input Port Default Value: True
.
DtOutputPortGroupmySurfaceControlPortGroup
 Output Port Group Name: surface-control
Output Port Group Description:
DtConstrainedAnalogOutputPortmyThrottlePort
 Output Port Name: throttle
Output Port Description:
Output Port Range: -1.0 to 1.0
Output Port Default Value:
Output Group Parent: surface-control.
DtConstrainedAnalogOutputPortmyRudderPort
 Output Port Name: rudder
Output Port Description:
Output Port Range: -1.0 to 1.0
Output Port Default Value:
Output Group Parent: surface-control.

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 DtTaskControllerComponent
typedef std::pair
< DtTaskMessageCallbackFcn,
void * > 
DtTaskCallbackMapPair
 This map stores callbacks that have been registered to processes various tasks.
typedef std::map
< DtSimTaskMessageType,
DtTaskCallbackMapPair
DtTaskCallbackMap
- Static Protected Attributes inherited from DtSimComponent
static DtSimComponentFactorymyFactory

Detailed Description

DtSurfaceEntityMoveAlongController is a controller that models movement of a ship along a route.

End User Description: DtSurfaceEntityMoveAlongController (surfEntMvAlgCtl.h) is derived from DtSurfaceEntityMoveToController and implements the Move Along route task for surface entities. It works by creating a temporary waypoint which the base class is targeting, and moving that waypoing to each successive point in the route. By overriding DtSurfaceEntityMoveToController::doMoving, the move along controller is able to call sailTo() instead of driftTo() for all the target vertices along the route except for the final vertex where it will attempt to drift to a stop. Both atGoal() and passedGoal() are overridden to call down to the base class, and then call targetNextVertex() to advance myRouteState to the next vertex.
It overrides DtTaskControllerComponent::registerTaskMsgCallbacks() and registers the callback function moveAlongCallback() for DtMoveAlongType. When a message is received, the callback invokes processMoveAlongTask(), which looks up the route in the object manager and stores a pointer to it in myRoute.
Uses Descriptor Type: DtSurfaceEntityPilotControllerDescriptor

Constructor & Destructor Documentation

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

(const DtString&,DtVrfObject*,DtSimManager*,

Parameters
nameReader writer name of this component.
ownerThe DtVrfObject that owns this component
simManagerThe simulation manager (provides access to terrain, message interface, simulation clock).
descThe component descriptor used to initialize this component.
parentRegistryPointer to the parent reader writer registry (the containing object that reads/writes this object).
(const DtString&,DtVrfObject*,DtSimManager*, DtComponentDescriptor*,DtReaderWriterRegistry* parentRegistry)

virtual DtSurfaceEntityMoveAlongController::~DtSurfaceEntityMoveAlongController ( )
virtual

Destructor.

Removes any remaining vertices changed callback added by processMoveAlongTask. Deletes myControlPoint. Calls emptyVertexList().

DtSurfaceEntityMoveAlongController::DtSurfaceEntityMoveAlongController ( )
protected

default constructor; not implemented

DtSurfaceEntityMoveAlongController::DtSurfaceEntityMoveAlongController ( const DtSurfaceEntityMoveAlongController orig)
protected

copy constructor; not implemented

Member Function Documentation

virtual bool DtSurfaceEntityMoveAlongController::init ( )
virtual

Creates myControlPoint.

Reimplemented from DtSurfaceEntityPilotController.

virtual DtString DtSurfaceEntityMoveAlongController::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
DtSurfaceEntityMoveAlongType

Reimplemented from DtSurfaceEntityMoveToController.

Reimplemented in DtSurfaceEntityPatrolRouteController.

virtual void DtSurfaceEntityMoveAlongController::clearTask ( )
virtual

Calls down to the base class and then calls allowDeactivation() on mySurfaceControlPortGroup.

Reimplemented from DtSurfaceEntityMoveToController.

static void DtSurfaceEntityMoveAlongController::moveAlongCallback ( DtSimMessage msg,
void *  usr 
)
static

Called when a move along message is received.

Instances of this component will register this callback (with their own 'this' pointer as user data) by calling addTaskProcessorCallback in order to request for notification of move-along tasks. When this callback is activated, the user data pointer is cast to an instance of this class upon which processMoveAlongTask is called with the move along message.

virtual void DtSurfaceEntityMoveAlongController::processMoveAlongTask ( DtSimMessage msg)
virtual

Retrives the route name from the task message.

Called by moveAlongCallback to lookup the route stored in the move to message and store a pointer to it in myRoute. The name of the route and the reverse flag are saved in the process state repository. A verticies changed callback is registered on the route with routeChangedCallback as the function pointer. The myRouteHasChanged flag is then set to false. Finally, setupControlPoint() is called.

static void DtSurfaceEntityMoveAlongController::routeChangedCallback ( DtVrfObject obj,
void *  user 
)
static

Calls processRouteChanged().

Casts the user data pointer to an instance of this class upon which it calls processRouteChanged() with the object pointer.

virtual void DtSurfaceEntityMoveAlongController::processRouteChanged ( DtVrfObject obj)
virtual

Handles changes to the verticies in the route.

Checks to make sure that the route is not null, that it's name matches the name stored in the process state repository, and that the controller is tasked. Iterates over the vertices in the route and compares them to the route vertices stored in the process state repository. If one of the verticies differs, myRouteHasChanged is set to true.

virtual bool DtSurfaceEntityMoveAlongController::atGoal ( )
virtual

Overridden to head to the next vertex in the route every time a vertex is reached until the end of the route is reached.

Calls down to DtSurfaceEntityMoveToController::atGoal() to determine if the current vertex has been reached. If not, false is returned. If the base class returns true, targetNextVertex is called to advance the target waypoint. If this call returns false, it indicates that the last vertex in the route has been reached and atGoal will return true.

Reimplemented from DtSurfaceEntityMoveToController.

virtual bool DtSurfaceEntityMoveAlongController::passedGoal ( )
virtual

Overridden to head to the next vertex in the route every time a vertex is reached until the end of the route is reached.

Calls down to DtSurfaceEntityMoveToController::passedGoal() to determine if the current vertex has been passed. If not, false is returned. If the base class returns true, targetNextVertex is called to advance the target waypoint. If this call returns false, it indicates that the last vertex in the route has been passed and passedGoal will return true.

Reimplemented from DtSurfaceEntityMoveToController.

virtual void DtSurfaceEntityMoveAlongController::doMoving ( double  desiredSpeed)
virtual

Overriden to call sailTo during route traversal until moving towards the the final point in the route at which time driftTo is called instead so the vessel will drift to a stop at the final vertex.

Reimplemented from DtSurfaceEntityMoveToController.

Reimplemented in DtSurfaceEntityPatrolRouteController.

virtual bool DtSurfaceEntityMoveAlongController::targetNextVertex ( )
virtual

Advance to the next vertex in the route state.

Checks to see if the current vertex stored in the route state of the process state repository is the last vertex in the route. If so, false is returned. If not, the route state is advanced and setupControlPoint() is called. If sucessful, doMoving is called with findDesiredSpeed. If not, false is returned.

Reimplemented in DtSurfaceEntityPatrolRouteController.

static void DtSurfaceEntityMoveAlongController::objectAboutToBeRemovedCallback ( DtVrfObject obj,
void *  usr 
)
static

Reimplemented from DtSurfaceEntityMoveToController.

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

(const DtString&,DtVrfObject*,DtSimManager*,

Parameters
nameReader writer name of this component.
ownerThe DtVrfObject that owns this component
simManagerThe simulation manager (provides access to terrain, message interface, simulation clock).
descThe component descriptor used to initialize this component.
parentRegistryPointer 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.

Reimplemented from DtSurfaceEntityMoveToController.

Reimplemented in DtSurfaceEntityPatrolRouteController.

const DtSurfaceEntityMoveAlongController& DtSurfaceEntityMoveAlongController::operator= ( const DtSurfaceEntityMoveAlongController orig)
protected

assignment operator; not implemented

virtual bool DtSurfaceEntityMoveAlongController::setupRoute ( )
protectedvirtual

Updates the route state in the process state repository.

Looks up the route in the object manager using the name stored in the process state repository and stores the pointer to it in myRoute. If the lookup fails, setupRoute returns false. Otherwise, if the PSR does not have a valid route state pointer, or if myRouteHasChanged, the PSR's route verticies are updated based on the vertices in myRoute. Additionally, if myRouteHasChanged setToClosest is called on the PSR's route state and myRouteHasChanged is reset to false.

virtual bool DtSurfaceEntityMoveAlongController::setupControlPoint ( )
protectedvirtual

Overridden to synchronize myControlPoint with the current vertex in the route.

Calls setupRoute and returns false if it fails. Updates the local position of myControlPoint with the location of the current vertex of the route state from the process state repository. If myRouteHasChanged, setupGoalVector() is called with the location of myControlPoint.

Reimplemented from DtSurfaceEntityMoveToController.

virtual void DtSurfaceEntityMoveAlongController::registerTaskMsgCallbacks ( )
protectedvirtual

Registers interest in move along tasks by calling addTaskProcessorCallback with moveAlongCallback as the function pointer and the 'this' pointer as the user data.

Reimplemented from DtSurfaceEntityMoveToController.

Reimplemented in DtSurfaceEntityPatrolRouteController.

virtual void DtSurfaceEntityMoveAlongController::emptyVertexList ( )
protectedvirtual

Removes and deletes vertices from the vertex list in process state repository (calls process state repository's emptyRouteVertices()).

virtual void DtSurfaceEntityMoveAlongController::processObjectAboutToBeRemoved ( DtVrfObject obj)
protectedvirtual

Reimplemented from DtSurfaceEntityMoveToController.

Member Data Documentation

DtVrfObject* DtSurfaceEntityMoveAlongController::myRoute
protected

This is looked up once per tick - assumed unchanging while we have control.

bool DtSurfaceEntityMoveAlongController::myRouteHasChanged
protected

This gets set to true when a modifyRoute message for the route we're following is received.


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

Document ID: Generated on Tue Jan 29 18:21:16 EST 2013 from SVN revision 123193
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