Class: WorldManager

WorldManager(world, fps)

Manages world events: tracks local user events and sends them to the server, and tracks network events and applies them to local scene. Loads avatars of other users and maps network events to their avatars, including user video and audio streams.

Constructor

new WorldManager(world, fps)

Creates world manager with default values and connection, scene, camera listeners.
Parameters:
Name Type Description
world
fps network framerate, default 5 (send up to 5 events per second)
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Classes

WorldManager

Members

avatarFactory

Avatar factory, default this.createAvatar
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changeListeners

Change listeners receive changes applied to all shared objects
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createAnimations

Create animations for movement of avatars, default true. Recommended for low fps.
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customAnimations

Custom avatar animations
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customOptions

Custom avatar options, applied to avatars after loading. Currently video avatars only
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debug

Enable debug output
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defaultPosition

Default position applied after an avatar loads
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defaultRotation

Default rotation applied after an avatar loads
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fps

Network frames per second, default 5
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leftArmPos

Current left arm position
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leftArmRot

Current left arm rotation
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loadCallback

Optionally called after an avatar has loaded. Callback is passed VRObject and avatar object as parameters. Avatar object can be either Avatar or VideoAvatar instance, or an AssetContainer.
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loadErrorHandler

Called when loading fails, default null.
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mediaStreams

This is set once we connect to streaming server
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mesh

Used in 3rd person view
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myChangeListeners

Listeners notified after own avatar property (e.g. position) has changed and published
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pos

Current position
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remoteLogging

Mobile browsers don't have javascript console, and USB debugging is next to useless. Enable to redirect all console output to the server log. Sure, it starts only after connection to the server is established.
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resolution

Movement resolution, default 1 cm/3.6 deg. Any movement less than this will be ignored.
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rightArmPos

Current right arm position
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rightArmRot

Current right arm rotation
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rot

Current rotation
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scene

the scene
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trackRotation

Whether to track user rotation, default true.
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userHeight

User height in real world, default 1.8
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world

the world
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Methods

bBoxMax()

Utility method, calculates bounding box for an AssetContainer and returns maximum of x,y,z. Works only for meshes already rendered
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boundingBox()

Utility method, calculates bounding box for an AssetContainer.
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Returns:
Vector3 bounding box

changeAvatar()

Apply remote changes to an avatar (VRObject listener)
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changeObject()

Apply remote changes to an object.
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checkChange()

Check if a value has changed, and update change array if so.
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createAvatar()

Default video avatar factory method
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(async) enter(properties)

Enter the world specified by world.name. If not already connected, first connect to world.serverUrl and set own properties, then start the session. World and WorldListeners are notified by calling entered methods.
Parameters:
Name Type Description
properties own properties to set before starting the session
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Returns:
Welcome promise

isChanged()

Return true if a value is ouside of given range.
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isOnline()

Returns true if connected to the server and session is active
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(async) loadAvatar()

Load a 3D avatar, attach a listener to it
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loadMesh()

Load an object and attach a listener.
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loadStream()

Load a video avatar, attach a listener to it.
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log()

Optionally log something
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notifyListeners()

Notify listeners of remote changes
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pubSub()

Publish and subscribe
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removeMesh()

Remove a mesh from the scene (scene listener), and dispose of everything.
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routeEvent(obj, field)

Called when applying changes other than rotation and translation: executes a method if such a method exists, passing it a current instance of associated VRObject.
Parameters:
Name Type Description
obj VRObject to apply change to
field member field to set or method to execute
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sceneChanged(e)

Called when scene has changed (scene listener). If an object was added, calls either loadAvatar, loadStream or loadMesh, as appropriate. If an object was removed, calls removeMesh. Any WorldListeners on the world are notified after changes are performed, by calling added and removed methods.
Parameters:
Name Type Description
e SceneEvent containing the change
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sendMy(obj)

Send own event.
Parameters:
Name Type Description
obj object containing changes to be sent, i.e. name-value pair(s).
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setSessionStatus()

Called when connection to the server is established (connection listener)
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trackCamera()

Tracks active camera
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trackChanges()

Periodically executed, as specified by fps. Tracks changes to camera and XR controllers. Calls checkChange, and if anything has changed, changes are sent to server, and to myChangeListeners.
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trackMesh()

Track a mesh, used in 3rd person view
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write()

Local user wrote something - send it over and notify local listener(s)
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