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import Reality from '../Reality.js'
/*
VirtualReality is a Reality that is empty and waiting for fanstastic CG scenes.
*/
export default class VirtualReality extends Reality {
constructor(xr){
super(xr, 'Virtual', false, false)
}
/*
Called when at least one active XRSession is using this Reality
*/
_start(){
}
/*
Called when no more active XRSessions are using this Reality
*/
_stop(){
}
/*
Called by a session before it hands a new XRPresentationFrame to the app
*/
_handleNewFrame(){}
/*
Create an anchor hung in space
*/
_addAnchor(anchor, display){
this._anchors.set(anchor.uid, anchor)
return anchor.uid
}
/*
Create an anchor attached to a surface, as found by a ray
normalized screen x and y are in range 0..1, with 0,0 at top left and 1,1 at bottom right
*/
_findAnchor(normalizedScreenX, normalizedScreenY, display){
return new Promise((resolve, reject) => {
resolve(null)
})
}
_removeAnchor(uid){
this._anchors.delete(uid)
}
}