com.threerings.whirled.client

Class SceneDirector

java.lang.Object

com.threerings.presents.client.BasicDirector

com.threerings.whirled.client.SceneDirector

All Implemented Interfaces:

com.threerings.crowd.client.LocationDirector.FailureHandler, com.threerings.crowd.data.LocationCodes, com.threerings.presents.client.InvocationReceiver, com.threerings.presents.client.InvocationService.InvocationListener, com.threerings.presents.client.SessionObserver, com.threerings.presents.data.InvocationCodes, SceneReceiver, SceneService.SceneMoveListener, SceneCodes

public class SceneDirector
extends com.threerings.presents.client.BasicDirector
implements SceneCodes, com.threerings.crowd.client.LocationDirector.FailureHandler, SceneReceiver, SceneService.SceneMoveListener

The scene director is the client's interface to all things scene related. It interfaces with the scene repository to ensure that scene objects are available when the client enters a particular scene. It handles moving from scene to scene (it coordinates with the LocationDirector in order to do this).

Note that when the scene director is in use instead of the location director, scene ids instead of place oids will be supplied to LocationObserver.locationMayChange(int) and LocationObserver.locationChangeFailed(int, java.lang.String).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SceneDirector.MoveHandler Used to recover from a problem after a completed moveTo.

Nested classes/interfaces inherited from interface com.threerings.presents.client.InvocationReceiver

com.threerings.presents.client.InvocationReceiver.Registration

Field Summary

Fields inherited from interface com.threerings.whirled.data.SceneCodes

SCENE_UPDATE, WHIRLED_GROUP

Fields inherited from interface com.threerings.crowd.data.LocationCodes

ALREADY_THERE, MOVE_IN_PROGRESS, NO_SUCH_PLACE

Fields inherited from interface com.threerings.presents.data.InvocationCodes

ACCESS_DENIED, E_ACCESS_DENIED, E_INTERNAL_ERROR, GLOBAL_GROUP, INTERNAL_ERROR

Constructor Summary

Constructors

Constructor and Description
SceneDirector(WhirledContext ctx, com.threerings.crowd.client.LocationDirector locdir, SceneRepository screp, SceneFactory fact) Creates a new scene director with the specified context.

Method Summary

Modifier and Type	Method and Description
void	addPendingForcedMove(Runnable move)
void	cancelMoveRequest()
void	clientDidLogoff(com.threerings.presents.client.Client client)
void	didLeaveScene() Called to clean up our place and scene state information when we leave a scene.
void	forcedMove(int sceneId) Used to communicate a required move notification to the client.
SceneModel	getPendingModel() Returns the model loaded in preparation for a scene transition.
int	getPendingSceneId() Returns the scene id set in preparation for a scene transition.
Scene	getScene() Returns the display scene object associated with the scene we currently occupy or null if we currently occupy no scene.
boolean	movePending() Returns true if there is a pending move request.
void	moveRequiresServerSwitch(String hostname, int[] ports) Indicates that the client must switch to the specified server and reissue its move request in order to relocate to its desired scene.
void	moveSucceeded(int placeId, com.threerings.crowd.data.PlaceConfig config) Indicates that a move succeeded.
void	moveSucceededWithScene(int placeId, com.threerings.crowd.data.PlaceConfig config, SceneModel model) Indicates that a move succeeded and that the client's cached scene information should be updated with the supplied data.
void	moveSucceededWithUpdates(int placeId, com.threerings.crowd.data.PlaceConfig config, SceneUpdate[] updates) Indicates that a move succeeded and that the client's cached scene information should be updated with the supplied data.
boolean	moveTo(int sceneId) Requests that this client move the specified scene.
boolean	prepareMoveTo(int sceneId, ResultListener<com.threerings.crowd.data.PlaceConfig> rl) Prepares to move to the requested scene.
void	recoverFailedMove(int placeId)
void	requestFailed(String reason)
void	setMoveHandler(SceneDirector.MoveHandler handler) Sets the moveHandler for use in recoverFailedMove(int).
void	setSceneRepository(SceneRepository screp) Set the scene repository.
void	updateReceived(SceneUpdate update) Called by SceneController instances to tell us about an update to the current scene.

Methods inherited from class com.threerings.presents.client.BasicDirector

clientDidLogon, clientObjectDidChange, clientWillLogon, isAvailableInStandalone, setAvailableInStandalone

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SceneDirector

public SceneDirector(WhirledContext ctx,
                     com.threerings.crowd.client.LocationDirector locdir,
                     SceneRepository screp,
                     SceneFactory fact)

Creates a new scene director with the specified context.

Parameters:

ctx - the active client context.

locdir - the location director in use on the client, with which the scene director will coordinate when changing location.

screp - the entity from which the scene director will load scene data from the local client scene storage. This may be null when the SceneDirector is constructed, but it should be supplied via setSceneRepository(com.threerings.whirled.client.persist.SceneRepository) prior to really using this director.

fact - the factory that knows which derivation of Scene to create for the current system.

Method Detail

setSceneRepository

public void setSceneRepository(SceneRepository screp)

Set the scene repository.

getScene

public Scene getScene()

Returns the display scene object associated with the scene we currently occupy or null if we currently occupy no scene.

movePending

public boolean movePending()

Returns true if there is a pending move request.

moveTo

public boolean moveTo(int sceneId)

Requests that this client move the specified scene. A request will be made and when the response is received, the location observers will be notified of success or failure.

Returns:

true if the move to request was issued, false if it was rejected by a location observer or because we have another request outstanding.

prepareMoveTo

public boolean prepareMoveTo(int sceneId,
                             ResultListener<com.threerings.crowd.data.PlaceConfig> rl)

Prepares to move to the requested scene. The location observers are asked to ratify the move and our pending scene mode is loaded from the scene repository. This can be called by cooperating directors that need to coopt the moveTo process.

getPendingModel

public SceneModel getPendingModel()

Returns the model loaded in preparation for a scene transition. This is made available only for cooperating directors which may need to coopt the scene transition process. The pending model is only valid immediately following a call to prepareMoveTo(int, com.samskivert.util.ResultListener<com.threerings.crowd.data.PlaceConfig>).

getPendingSceneId

public int getPendingSceneId()

Returns the scene id set in preparation for a scene transition. As with getPendingModel(), this is for cooperating directors.

moveSucceeded

public void moveSucceeded(int placeId,
                          com.threerings.crowd.data.PlaceConfig config)

Description copied from interface: SceneService.SceneMoveListener

Indicates that a move succeeded.

Specified by:

moveSucceeded in interface SceneService.SceneMoveListener

Parameters:

placeId - the place object id of the newly occupied scene.

config - metadata related to the newly occupied scene.

moveSucceededWithUpdates

public void moveSucceededWithUpdates(int placeId,
                                     com.threerings.crowd.data.PlaceConfig config,
                                     SceneUpdate[] updates)

Description copied from interface: SceneService.SceneMoveListener

Indicates that a move succeeded and that the client's cached scene information should be updated with the supplied data.

Specified by:

moveSucceededWithUpdates in interface SceneService.SceneMoveListener

Parameters:

placeId - the place object id of the newly occupied scene.

config - metadata related to the newly occupied scene.

updates - updates that must be applied to the client's copy of a scene model to bring it up to date.

moveSucceededWithScene

public void moveSucceededWithScene(int placeId,
                                   com.threerings.crowd.data.PlaceConfig config,
                                   SceneModel model)

Description copied from interface: SceneService.SceneMoveListener

Indicates that a move succeeded and that the client's cached scene information should be updated with the supplied data.

Specified by:

moveSucceededWithScene in interface SceneService.SceneMoveListener

Parameters:

placeId - the place object id of the newly occupied scene.

config - metadata related to the newly occupied scene.

model - a fresh copy of the most recent scene data for the newly occupied scene.

moveRequiresServerSwitch

public void moveRequiresServerSwitch(String hostname,
                                     int[] ports)

Description copied from interface: SceneService.SceneMoveListener

Indicates that the client must switch to the specified server and reissue its move request in order to relocate to its desired scene.

Specified by:

moveRequiresServerSwitch in interface SceneService.SceneMoveListener

requestFailed

public void requestFailed(String reason)

Specified by:

requestFailed in interface com.threerings.presents.client.InvocationService.InvocationListener

updateReceived

public void updateReceived(SceneUpdate update)

Called by SceneController instances to tell us about an update to the current scene.

didLeaveScene

public void didLeaveScene()

Called to clean up our place and scene state information when we leave a scene.

setMoveHandler

public void setMoveHandler(SceneDirector.MoveHandler handler)

Sets the moveHandler for use in recoverFailedMove(int).

forcedMove

public void forcedMove(int sceneId)

Description copied from interface: SceneReceiver

Used to communicate a required move notification to the client. The server will have removed the client from their existing scene and the client is then responsible for generating a SceneService.moveTo(int, int, com.threerings.whirled.client.SceneService.SceneMoveListener) request to move to the new scene.

Specified by:

forcedMove in interface SceneReceiver

recoverFailedMove

public void recoverFailedMove(int placeId)

Specified by:

recoverFailedMove in interface com.threerings.crowd.client.LocationDirector.FailureHandler

clientDidLogoff

public void clientDidLogoff(com.threerings.presents.client.Client client)

Specified by:

clientDidLogoff in interface com.threerings.presents.client.SessionObserver

Overrides:

clientDidLogoff in class com.threerings.presents.client.BasicDirector

cancelMoveRequest

public void cancelMoveRequest()

addPendingForcedMove

public void addPendingForcedMove(Runnable move)