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4 Commits

  1. 62
      README.md
  2. 1730
      index.html
  3. 144
      index.js
  4. 861
      jxr-core.js
  5. 29
      jxr-postitnote.js
  6. 28
      submit.html

@ -8,7 +8,69 @@ You can test it live at https://fabien.benetou.fr/pub/home/future_of_text_demo/e
See also the AR version https://video.benetou.fr/w/x7HeEBF9HGfdVyf7vWsKsQ
Note that the master branch is never the most up to date branch. Instead see https://git.benetou.fr/utopiah/text-code-xr-engine/branches for an overview. To explore branches in VR see https://fabien.benetou.fr/pub/home/future_of_text_demo/engine/branches.html
In order to have a better view of the different features accross branches see https://mastodon.pirateparty.be/web/@utopiah and https://twitter.com/utopiah/ which act as a kind of live documentation of the process.
![Manipulation prevew image](https://fabien.benetou.fr/pub/home/future_of_text_demo/content/primitives_manipulation.gif)
![Preview image](https://fabien.benetou.fr/pub/home/future_of_text_demo/content/engine-preview.png)
First communicated on https://twitter.com/utopiah/status/1531188862415929344 as way to work on (WebXR) code during a flight.
## Minimalist example
See for details the [minimalist-template branch](https://git.benetou.fr/utopiah/text-code-xr-engine/src/branch/minimalist-template/index.html) and [deployment issue](https://git.benetou.fr/utopiah/text-code-xr-engine/issues/72).
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>JXR minimalist template</title>
<script src="https://aframe.io/releases/1.5.0/aframe.min.js"></script>
<script src="https://unpkg.com/aframe-troika-text/dist/aframe-troika-text.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/kylebakerio/a-console@1.0.2/a-console.js"></script>
<script src="https://fabien.benetou.fr/pub/home/future_of_text_demo/engine/jxr.js"></script>
<!-- use to define targets and left/right pinch interactions, respectively execute code and move targets -->
</head>
<body>
<div style="position:fixed;z-index:1; top: 0%; left: 0%; border-bottom: 70px solid transparent; border-left: 70px solid #eee;">
<a href="https://git.benetou.fr/utopiah/text-code-xr-engine/issues/">
<img style="position:fixed;left:10px;" title="code repository"
src="https://fabien.benetou.fr/pub/home/future_of_text_demo/engine/gitea_logo.svg">
</a>
</div>
<button id="mainbutton" style="display:none; z-index: 1; position: absolute; width:50%; margin: auto; text-align:center; top:45%; left:30%; height:30%;" onclick="startExperience()">Start the experience (hand tracking recommended)</button>
<a-scene>
<a-entity id="rig">
<a-entity id="player"
hud camera look-controls wasd-controls waistattach="target: .movebypinch" position="0 1.6 0"></a-entity>
<a-entity id="rightHand" pinchprimary hand-tracking-controls="hand: right;"></a-entity>
<a-entity id="leftHand" pinchsecondary wristattachsecondary="target: #box" hand-tracking-controls="hand: left;"></a-entity>
</a-entity>
<a-troika-text value="SpaSca : Spatial Scaffolding" anchor="left" outline-width="5%" font="https://fabien.benetou.fr/pub/home/future_of_text_demo/content/ChakraPetch-Regular.ttf" position="-5.26197 6.54224 -1.81284"
scale="4 4 5" rotation="90 0 0" troika-text="outlineWidth: 0.01; strokeColor: #ffffff" material="flatShading: true; blending: additive; emissive: #c061cb"></a-troika-text>
<a-sky hide-on-enter-ar color="black"></a-sky>
<a-entity hide-on-enter-ar="" id="environmentsky" class="hidableenvironment" ></a-entity>
<a-troika-text anchor="left" target value="instructions : \n--right pinch to move\n--left pinch to execute" position="0 0.65 -0.2" scale="0.1 0.1 0.1"></a-troika-text>
<a-troika-text anchor=left target id="locationreload" value="jxr location.reload()" position="0 1.20 -0.1" scale="0.1 0.1 0.1"></a-troika-text>
<a-troika-text anchor=left target id="makeAnchorsVisibleOnTargets" value="jxr makeAnchorsVisibleOnTargets()" position="0 1.05 -0.1" scale="0.1 0.1 0.1"></a-troika-text>
<a-console position="0 1.1 -0.8" rotation="-45 0 0" font-size="34" height="0.5" skip-intro="true"></a-console>
</a-scene>
</body>
</html>
```

File diff suppressed because it is too large Load Diff

@ -1,144 +0,0 @@
/* nodejs server to grab the current URL as tridactyl command and serve back page with content */
// mkdir tabs polydata
// autocmd TabEnter .* js fetch("http://localhost:7777/?url="+window.location.href)
// might be interesting to keep track of document.referrer too
// consider instead Firefox Account
const fs = require('fs');
const express = require('express')
const cors = require('cors')
const https = require('https')
const path = require('path')
const {execSync} = require('child_process');
const fetch = require('node-fetch');
const app = express()
app.use(cors())
app.get('/getpoly', function(req, res){
const polypath = "polydata"
const url = "https://static.poly.pizza/"
const extensions = [".glb",".webp"]
const filepath = path.join(__dirname, polypath, req.query.id+extensions[0])
if (!fs.existsSync(filepath)){
execSync("wget "+url+req.query.id+extensions[0], {cwd:path.join(__dirname,polypath)})
execSync("wget "+url+req.query.id+extensions[1], {cwd:path.join(__dirname,polypath)})
}
res.send("received");
});
app.get('/voiceinput', function(req, res){
console.log(req.query.keyword)
sseSend(req.query.keyword)
res.send("received");
});
app.get('/search', async function(req, res){
const response = await fetch('https://api.poly.pizza/v1/search/'+req.query.keyword, {
headers: {'x-auth-token': 'e821ece91d1a43c1ac70299368a72b8a'}
});
const data = await response.json();
res.json(data);
});
app.get('/cabin', function(req, res){
res.sendFile(path.join(__dirname, 'cabin.html'))
});
app.get('/', function(req, res){
res.sendFile(path.join(__dirname, 'index.html'))
});
app.get('/tabs', function(req, res){
res.json({"files":fs.readdirSync("tabs")})
});
// resulting in possibly getting /static/screens/1652811988.png
app.get('/screens', function(req, res){
res.json({"files":fs.readdirSync("screens")})
});
const container = "docker run --rm -e UID=$(id -u) -e GID=$(id -g) "
// could try losing priviledges instead, if possible
fs.watch("cabin.html", (eventType, filename) => {
if (eventType == "change") sseSend(filename+" modified")
})
// SSE to force reload client-side
var connectedClients = []
function sseSend(data){
connectedClients.map( res => {
console.log("notifying client") // seems to be call very often (might try to send to closed clients?)
res.write(`data: ${JSON.stringify({status: data})}\n\n`);
})
}
app.get('/streaming', (req, res) => {
res.setHeader('Cache-Control', 'no-cache');
res.setHeader('Content-Type', 'text/event-stream');
//res.setHeader('Access-Control-Allow-Origin', '*');
// alread handled at the nginx level
res.setHeader('Connection', 'keep-alive');
res.setHeader('X-Accel-Buffering', 'no');
res.flushHeaders(); // flush the headers to establish SSE with client
res.write(`data: ${JSON.stringify({event: "userconnect"})}\n\n`); // res.write() instead of res.send()
connectedClients.push(res)
// If client closes connection, stop sending events
res.on('close', () => {
console.log('client dropped me');
res.end();
});
});
// consider instead CloudInit so that it can be delegated to another machine
// keeping a pool of available machine would start with a single one
// namely that it is possible to run multiple containers on 1 instance, simultaneously or not.
containersSupportedByLanguage = {
bash: "debian ",
julia: "julia julia -E ",
python: "python python -c ",
// avoided file specific languages
// could be done by writing to a file in the container e.g /tmp/file.c then passing it as parameter
}
app.get('/invitereload', function(req, res){
sseSend("reload")
res.json({"res":"reload requested"})
})
app.get('/command', function(req, res){
var req = req.query.command
var foundContainer = containersSupportedByLanguage[req.split(" ")[0]]
var code = req.split(" ").slice(1).join(" ")
if (foundContainer)
res.json({"res":execSync(container+foundContainer+code).toString()})
else
res.json({"res":"language not supported"})
});
// could specify name, it then contiue instance
// ~/.openai-codex-test-xr
// potential alt backend to generate
app.get('/currenturl', function(req, res){
// could instead be the webxr page
let now = + new Date()
fs.appendFile('currentURL.txt', now+" "+req.query.url+" "+req.query.referrer+"\n", function (err) { if (err) throw err; });
// could be JSON instead
res.json({"status":"test"})
});
app.use('/static', express.static(path.join(__dirname, '.')))
// including currentURL.txt
const port = 7777
app.listen(port, () =>
console.log('listening on port', port)
);

@ -1,861 +0,0 @@
const prefix = /^jxr /
const codeFontColor = "lightgrey"
const fontColor= "white"
var selectedElement = null;
var targets = []
const zeroVector3 = new THREE.Vector3()
var bbox = new THREE.Box3()
bbox.min.copy( zeroVector3 )
bbox.max.copy( zeroVector3 )
var selectionBox = new THREE.BoxHelper( bbox.object3D, 0x0000ff);
var groupHelpers = []
var primaryPinchStarted = false
var wristShortcut = "jxr switchToWireframe()"
var selectionPinchMode = false
var groupingMode = false
var hudTextEl // should instead rely on the #typinghud selector in most cases
const startingText = "[]"
var added = []
const maxItemsFromSources = 20
let alphabet = ['abcdefghijklmnopqrstuvwxyz', '0123456789', '<>'];
var commandhistory = []
var groupSelection = []
var primarySide = 0
const sides = ["right", "left"]
var pinches = [] // position, timestamp, primary vs secondary
var dl2p = null // from distanceLastTwoPinches
var selectedElements = [];
var billboarding = false
// ==================================== picking ======================================================
AFRAME.registerComponent('target', {
init: function () {
targets.push( this.el )
this.el.classList.add("collidable")
}
// on remove should also remove from targets, e.g targets = targets.filter( e => e != target)
})
function getClosestTargetElements( pos, threshold=0.05 ){ // if done frequently on large amount of targets, e.g hover on keyboard keys, consider proper structure e.g octree instead
// TODO Bbox intersects rather than position
return targets.filter( e => e.getAttribute("visible") == true)
// .map( t => { return { el: t, dist : pos.distanceTo(t.getAttribute("position") ) } })
// limited to local position
.map( t => {
let posTarget = new THREE.Vector3()
t.object3D.getWorldPosition( posTarget )
let d = pos.distanceTo( posTarget )
return { el: t, dist : d }
})
// needs reparenting to scene via attach() otherwise lead to strange behavior
.filter( t => t.dist < threshold && t.dist > 0 )
.sort( (a,b) => a.dist > b.dist)
}
function getClosestTargetElement( pos, threshold=0.05 ){ // 10x lower threshold for flight mode
var res = null
const matches = getClosestTargetElements( pos, threshold)
if (matches.length > 0) res = matches[0].el
return res
}
// ==================================== HUD ======================================================
var keyboardInputTarget = 'hud'
AFRAME.registerComponent('hud', {
init: function(){
var feedbackHUDel= document.createElement("a-troika-text")
feedbackHUDel.id = "feedbackhud"
feedbackHUDel.setAttribute("value", "")
feedbackHUDel.setAttribute("position", "-0.05 0.01 -0.2")
feedbackHUDel.setAttribute("scale", "0.05 0.05 0.05")
this.el.appendChild( feedbackHUDel )
var typingHUDel = document.createElement("a-troika-text")
typingHUDel.id = "typinghud"
typingHUDel.setAttribute("value", startingText)
typingHUDel.setAttribute("position", "-0.05 0 -0.2")
typingHUDel.setAttribute("scale", "0.05 0.05 0.05")
this.el.appendChild( typingHUDel )
hudTextEl = typingHUDel // should rely on the id based selector now
document.addEventListener('keyup', function(event) {
if (keyboardInputTarget != 'hud') return
parseKeys('keyup', event.key)
});
document.addEventListener('keydown', function(event) {
if (keyboardInputTarget != 'hud') return
parseKeys('keydown', event.key)
});
}
})
function appendToFeedbackHUD(txt){
setFeedbackHUD( document.querySelector("#feedbackhud").getAttribute("value") + " " + txt )
}
function setFeedbackHUD(txt){
document.querySelector("#feedbackhud").setAttribute("value",txt)
setTimeout( _ => document.querySelector("#feedbackhud").setAttribute("value","") , 2000)
}
function appendToHUD(txt){
const textHUD = document.querySelector("#typinghud").getAttribute("value")
if ( textHUD == startingText)
setHUD( txt )
else
setHUD( textHUD + txt )
}
function setHUD(txt){
document.querySelector("#typinghud").setAttribute("value",txt)
}
function showhistory(){
setFeedbackHUD("history :\n")
commandhistory.map( i => appendToHUD(i.uninterpreted+"\n") )
}
function saveHistoryAsCompoundSnippet(){
addNewNote( commandhistory.map( e => e.uninterpreted ).join("\n") )
}
// ==================================== pinch primary and secondary ======================================================
AFRAME.registerComponent('pinchsecondary', {
events: {
pinchended: function (event) {
selectedElement = getClosestTargetElement( event.detail.position )
selectedElements.push({element:selectedElement, timestamp:Date.now(), primary:false})
// if close enough to a target among a list of potential targets, unselect previous target then select new
if (selectedElement) interpretJXR( selectedElement.getAttribute("value") )
selectedElement = null
},
pinchmoved: function (event) {
if (selectionPinchMode){
bbox.min.copy( event.detail.position )
setFeedbackHUD( "selectionPinchMode updated min")
if (!bbox.max.equal(zeroVector3))
selectionBox.update();
}
},
pinchstarted: function (event) {
if (!selectionPinchMode) bbox.min.copy( zeroVector3 )
if (selectionPinchMode) setFeedbackHUD( "selectionPinchMode started")
},
},
});
// grouping and distance between last two pinches should be rewritten, simplified and more reliable
AFRAME.registerComponent('pinchprimary', { // currently only 1 hand, the right one, should be switchable
events: {
pinchended: function (event) {
let closests = getClosestTargetElements( event.detail.position )
let dist = 100
if ( document.querySelector("#box") )
dist = event.detail.position.distanceTo( document.querySelector("#box").object3D.position )
if (dist < .1){
setFeedbackHUD("close enough, replaced shortcut with "+ selectedElement.getAttribute("value") )
wristShortcut = selectedElement.getAttribute("value")
}
if (selectedElement){
let content = selectedElement.getAttribute("value")
selectedElement.emit('released', {element:selectedElement, timestamp:Date.now(), primary:true})
if (billboarding) selectedElement.object3D.rotation.set( 0, 0, 0 )
}
// unselect current target if any
selectedElement = null;
if ( groupingMode ) addToGroup( event.detail.position )
selectionPinchMode = false
setTimeout( _ => primaryPinchStarted = false, 200) // delay otherwise still activate on release
var newPinchPos = new THREE.Vector3()
newPinchPos.copy(event.detail.position )
pinches.push({position:newPinchPos, timestamp:Date.now(), primary:true})
dl2p = distanceLastTwoPinches()
},
pinchmoved: function (event) {
if (selectionPinchMode){
bbox.max.copy( event.detail.position )
if (!bbox.min.equal(zeroVector3))
selectionBox.update();
}
if (selectedElement && !groupingMode) {
selectedElement.setAttribute("position", event.detail.position)
this.el.object3D.traverse( e => {
if (e.name == "ring-finger-tip"){
selectedElement.object3D.rotation.copy( e.rotation )
}
})
// rotation isn't ideal with the wrist as tend not have wrist flat as we pinch
}
if (selectedElement) selectedElement.emit("moved", {element:selectedElement, timestamp:Date.now(), primary:true})
// might be costly...
},
pinchstarted: function (event) {
primaryPinchStarted = true
if (!selectionPinchMode) bbox.max.copy( zeroVector3 )
selectedElement = getClosestTargetElement( event.detail.position )
if (selectedElement) {
selectedElements.push({element:selectedElement, timestamp:Date.now(), primary:true})
selectedElement.emit("picked", {element:selectedElement, timestamp:Date.now(), primary:true})
}
}
}
// should remove event listeners
})
// avoiding setOnDropFromAttribute() as it is not idiosyncratic and creates timing issues
AFRAME.registerComponent('onreleased', { // changed from ondrop to be coherent with event name
schema: {default: ""}, // type: "string" forced to avoid object type guess parsing
// could support multi
// could check if target component is already present on this.el, if not, add it as it's required
events: {
released: function (e) {
let code = this.el.getAttribute('onreleased')
// if multi, should also look for onreleased__ not just onreleased
try {
eval( code ) // should be jxr too e.g if (txt.match(prefix)) interpretJXR(txt)
// note that event details are avaible within that code as e.detail which might not be very clear
} catch (error) {
console.error(`Evaluation failed with ${error}`);
}
}
}
})
AFRAME.registerComponent('onpicked', {
schema: {default: ""}, // type: "string" forced to avoid object type guess parsing
// could support multi
// could check if target component is already present on this.el, if not, add it as it's required
events: {
picked: function (e) {
let code = this.el.getAttribute('onpicked')
// if multi, should also look for onreleased__ not just onreleased
try {
eval( code ) // should be jxr too e.g if (txt.match(prefix)) interpretJXR(txt)
// note that event details are avaible within that code as e.detail which might not be very clear
} catch (error) {
console.error(`Evaluation failed with ${error}`);
}
}
}
})
function onNextPrimaryPinch(callback){
// could add an optional filter, e.g only on specific ID or class
// e.g function onNextPrimaryPinch(callback, filteringSelector){}
let lastPrimary = selectedElements.filter( e => e.primary ).length
let checkForNewPinches = setInterval( _ => {
if (selectedElements.filter( e => e.primary ).length > lastPrimary){
let latest = selectedElements[selectedElements.length-1].element
if (latest) callback(latest)
clearInterval(checkForNewPinches)
}
}, 50) // relatively cheap check, filtering on small array
}
function distanceLastTwoPinches(){
let dist = null
if (pinches.length>1){
dist = pinches[pinches.length-1].position.distanceTo( pinches[pinches.length-2].position )
}
return dist
}
function groupSelectionToNewNote(){
var text = ""
groupSelection.map( grpel => {
//removeBoundingBoxToTextElement( grpel )
// somehow fails...
text += grpel.getAttribute("value") + "\n"
})
groupHelpers.map( e => e.removeFromParent() )
groupHelpers = []
groupSelection = []
addNewNote( text )
}
// ==================================== keyboard ======================================================
AFRAME.registerComponent('keyboard', {
init:function(){
let generatorName = this.attrName
const horizontaloffset = .7
const horizontalratio = 1/20
alphabet.map( (line,ln) => {
for (var i = 0; i < line.length; i++) {
var pos = i * horizontalratio - horizontaloffset
addNewNote( line[i], pos+" "+(1.6-ln*.06)+" -.4", ".1 .1 .1", null, generatorName)
}
})
}
})
function parseKeys(status, key){
var e = hudTextEl
if (status == "keyup"){
if (key == "Control"){
groupingMode = false
groupSelectionToNewNote()
}
}
if (status == "keydown"){
var txt = e.getAttribute("value")
if (txt == "[]")
e.setAttribute("value", "")
if (key == "Backspace" && txt.length)
e.setAttribute("value", txt.slice(0,-1))
if (key == "Control")
groupingMode = true
if (key == "Shift" && selectedElement)
e.setAttribute("value", selectedElement.getAttribute("value") )
else if (key == "Enter") {
if ( selectedElement ){
var clone = selectedElement.cloneNode()
clone.setAttribute("scale", "0.1 0.1 0.1") // somehow lost
AFRAME.scenes[0].appendChild( clone )
targets.push( clone )
selectedElement = clone
} else {
if (txt.match(prefix)) interpretJXR(txt)
// check if text starts with jxr, if so, also interpret it.
addNewNote(e.getAttribute("value"))
e.setAttribute("value", "")
}
} else {
// consider also event.ctrlKey and multicharacter ones, e.g shortcuts like F1, HOME, etc
if (key.length == 1)
e.setAttribute("value", e.getAttribute("value") + key )
}
}
}
// ==================================== note as text and possibly executable snippet ======================================================
function addNewNote( text, position=`-0.2 1.1 -0.1`, scale= "0.1 0.1 0.1", id=null, classes="notes", visible="true", rotation="0 0 0" ){
var newnote = document.createElement("a-troika-text")
newnote.setAttribute("anchor", "left" )
newnote.setAttribute("outline-width", "5%" )
newnote.setAttribute("outline-color", "black" )
newnote.setAttribute("visible", visible )
if (id)
newnote.id = id
else
newnote.id = "note_" + crypto.randomUUID() // not particularly descriptive but content might change later on
if (classes)
newnote.className += classes
newnote.setAttribute("side", "double" )
var userFontColor = AFRAME.utils.getUrlParameter('fontcolor')
if (userFontColor && userFontColor != "")
newnote.setAttribute("color", userFontColor )
else
newnote.setAttribute("color", fontColor )
if (text.match(prefix))
newnote.setAttribute("color", codeFontColor )
newnote.setAttribute("value", text )
//newnote.setAttribute("font", "sw-test/Roboto-msdf.json")
newnote.setAttribute("position", position)
newnote.setAttribute("rotation", rotation)
newnote.setAttribute("scale", scale)
AFRAME.scenes[0].appendChild( newnote )
targets.push(newnote)
return newnote
}
AFRAME.registerComponent('annotation', {
// consider also multiple annotation but being mindful that it might clutter significantly
schema: {
content : {type: 'string'}
},
init: function () {
addAnnotation(this.el, this.data.content)
},
update: function () {
this.el.querySelector('.annotation').setAttribute('value', this.data.content )
// assuming single annotation
},
remove: function () {
this.el.querySelector('.annotation').removeFromParent()
//Array.from( this.el.querySelectorAll('.annotation') ).map( a => a.removeFromParent() )
}
})
function addAnnotation(el, content){
// could also appear only when in close proximity or while pinching
let annotation = document.createElement( 'a-troika-text' )
annotation.classList.add( 'annotation' )
annotation.setAttribute('value', content)
annotation.setAttribute('position', '0 .1 -.1')
annotation.setAttribute('rotation', '-90 0 0')
annotation.setAttribute("anchor", "left" )
annotation.setAttribute("outline-width", "5%" )
annotation.setAttribute("outline-color", "black" )
el.appendChild(annotation)
return el
}
function interpretAny( code ){
if (!code.match(/^dxr /)) return
var newcode = code
newcode = newcode.replace("dxr ", "")
//newcode = newcode.replace(/bash ([^\s]+)/ ,`debian '$1'`) // syntax delegated server side
fetch("/command?command="+newcode).then( d => d.json() ).then( d => {
console.log( d.res )
appendToHUD( d.res ) // consider shortcut like in jxr to modify the scene directly
// res might return that said language isn't support
// commandlistlanguages could return a list of supported languages
})
}
function parseJXR( code ){
// should make reserved keywords explicit.
var newcode = code
newcode = newcode.replace("jxr ", "")
newcode = newcode.replace(/(\d)s (.*)/ ,`setTimeout( _ => { $2 }, $1*1000)`)
// qs X => document.querySelector("X")
newcode = newcode.replace(/qs ([^\s]+)/ ,`document.querySelector('$1')`)
// sa X Y => .setAttribute("X", "Y")
newcode = newcode.replace(/ sa ([^\s]+) (.*)/,`.setAttribute('$1','$2')`)
// problematic for position as they include spaces
newcode = newcode.replace(/obsv ([^\s]+)/ ,`newNoteFromObservableCell('$1')`)
// TODO
//<a-text target value="jxr observe selectedElement" position="0 1.25 -0.2" scale="0.1 0.1 0.1"></a-text>
newcode = newcode.replace(/observe ([^\s]+)/,`bindVariableValueToNewNote('$1')`)
// could proxy instead... but for now, the quick and dirty way :
// e.g qs a-sphere sa color red =>
// document.querySelector("a-sphere").setAttribute("color", "red")
newcode = newcode.replace(/lg ([^\s]+) ([^\s]+)/ ,`addGltfFromURLAsTarget('$1',$2)`)
// order matters, here we only process the 2 params if they are there, otherwise 1
newcode = newcode.replace(/lg ([^\s]+)/ ,`addGltfFromURLAsTarget('$1')`)
return newcode
}
function interpretJXR( code ){
if (!code) return
if (code.length == 1) { // special case of being a single character, thus keyboard
if (code == ">") { // Enter equivalent
content = hudTextEl.getAttribute("value")
if (Number.isFinite(Number(content))) {
loadPageRange(Number(content));
} else {
addNewNote( content )
}
setHUD("")
} else if (code == "<") { // Backspace equivalent
setHUD( hudTextEl.getAttribute("value").slice(0,-1))
} else {
appendToHUD( code )
}
}
if (!code.match(prefix)) return
var uninterpreted = code
var parseCode = ""
code.split("\n").map( lineOfCode => parseCode += parseJXR( lineOfCode ) + ";" )
// could ignore meta code e.g showhistory / saveHistoryAsCompoundSnippet
commandhistory.push( {date: +Date.now(), uninterpreted: uninterpreted, interpreted: parseCode} )
console.log( parseCode )
try {
eval( parseCode )
} catch (error) {
console.error(`Evaluation failed with ${error}`);
}
// unused keyboard shortcuts (e.g BrowserSearch) could be used too
// opt re-run it by moving the corresponding text in target volume
}
function bindVariableValueToNewNote(variableName){
// from observe jxr keyword
const idName = "bindVariableValueToNewNote"+variableName
addNewNote( variableName + ":" + eval(variableName), `-0.15 1.4 -0.1`, "0.1 0.1 0.1", idName, "observers", "true" )
// could add to the HUD instead and have a list of these
return setInterval( _ => {
const value = variableName+";"+eval(variableName)
// not ideal for DOM elements, could have shortcuts for at least a-text with properties, e.g value or position
document.getElementById(idName).setAttribute("value", value)
}, 100 )
}
AFRAME.registerComponent('gltf-jxr', {
events: {
"model-loaded": function (evt) {
this.el.object3D.traverse( n => { if (n.userData.jxr) {
console.log(n.userData)
// need to make gltf become a child of a note to be executable on pinch
// try reparenting first... otherwise var clone = this.el.cloneNode(true)
// might not be great, cf https://github.com/aframevr/aframe/issues/2425
let pos = this.el.object3D.position.clone()
let rot = this.el.object3D.rotation.clone()
this.el.remove()
let note = addNewNote( n.userData.jxr, pos, "0.1 0.1 0.1", null, "gltf-jxr-source")
let clone = this.el.cloneNode(true)
clone.setAttribute('position', '0 0 0')
clone.setAttribute('scale', '10 10 10') // assuming not scaled until now, surely wrong
// need rescaling to current scale by 1/0.1, clone.setAttribute(
clone.removeAttribute('gltf-jxr')
note.appendChild(clone)
}
})
},
},
/* example of backend code to annotate the glTF
import { NodeIO } from '@gltf-transform/core';
import { ALL_EXTENSIONS } from '@gltf-transform/extensions';
const io = new NodeIO().registerExtensions(ALL_EXTENSIONS);
const document = await io.read('PopsicleChocolate.glb');
const node = document.getRoot() // doesn't seem to work.listNodes().find((node) => node.getName() === 'RootNode');
node.setExtras({jxr: "jxr addNewNote('hi')"});
await io.write('output.glb', document);
*/
});
// ==================================== interactions beyond pinch ======================================================
AFRAME.registerComponent('wristattachsecondary',{
schema: {
target: {type: 'selector'},
},
init: function () {
var el = this.el
this.worldPosition=new THREE.Vector3();
},
tick: function () {
// could check if it exists first, or isn't 0 0 0... might re-attach fine, to test
// somehow very far away... need to convert to local coordinate probably
// localToWorld?
(primarySide == 0) ? secondarySide = 1 : secondarySide = 0
var worldPosition=this.worldPosition;
this.el.object3D.traverse( e => { if (e.name == "wrist") {
worldPosition.copy(e.position);e.parent.updateMatrixWorld();e.parent.localToWorld(worldPosition)
rotation = e.rotation.x*180/3.14 + " " + e.rotation.y*180/3.14 + " " + e.rotation.z*180/3.14
this.data.target.setAttribute("rotation", rotation)
this.data.target.setAttribute("position",
AFRAME.utils.coordinates.stringify( worldPosition ) )
// doesnt work anymore...
//this.data.target.setAttribute("rotation", AFRAME.utils.coordinates.stringify( e.getAttribute("rotation") )
}
})
},
remove: function() {
// should remove event listeners here. Requires naming them.
}
});
function doublePinchToScale(){
let initialPositionSecondary
let initialScale
let elSecondary = document.querySelector('[pinchsecondary]')
elSecondary.addEventListener('pinchmoved', movedSecondary );
function movedSecondary(event){
if (!selectedElement) return
let scale = initialScale * initialPositionSecondary.distanceTo(event.detail.position) * 50
selectedElement.setAttribute("scale", ""+scale+" "+scale+" "+scale+" ")
}
elSecondary.addEventListener('pinchstarted', startedSecondary );
function startedSecondary(event){
initialPositionSecondary = event.detail.position.clone()
if (!selectedElement) return
initialScale = AFRAME.utils.coordinates.parse( selectedElement.getAttribute("scale") ).x
}
}
// from https://aframe.io/aframe/examples/showcase/hand-tracking/pressable.js
AFRAME.registerComponent('pressable', {
schema:{pressDistance:{default:0.06}},
init:function(){this.worldPosition=new THREE.Vector3();this.handEls=document.querySelectorAll('[hand-tracking-controls]');this.pressed=false;},
tick:function(){var handEls=this.handEls;var handEl;var distance;for(var i=0;i<handEls.length;i++){handEl=handEls[i];distance=this.calculateFingerDistance(handEl.components['hand-tracking-controls'].indexTipPosition);if(distance> 0 && distance<this.data.pressDistance){if(!this.pressed){this.el.emit('pressedstarted');} this.pressed=true;return;}} if(this.pressed){this.el.emit('pressedended');} this.pressed=false;},
calculateFingerDistance:function(fingerPosition){var el=this.el;var worldPosition=this.worldPosition;worldPosition.copy(el.object3D.position);el.object3D.parent.updateMatrixWorld();el.object3D.parent.localToWorld(worldPosition);return worldPosition.distanceTo(fingerPosition);}
});
AFRAME.registerComponent('start-on-press', {
// should become a property of the component instead to be more flexible.
init: function(){
let el = this.el
this.el.addEventListener('pressedended', function (event) {
console.log(event)
if (!primaryPinchStarted && wristShortcut.match(prefix)) interpretJXR(wristShortcut)
})
}
})
function thumbToIndexPull(){
let p = document.querySelector('[pinchprimary]')
let tip = new THREE.Vector3(); // create once an reuse it
let proximal = new THREE.Vector3(); // create once an reuse it
let thumb = new THREE.Vector3(); // create once an reuse it
let touches = []
const threshold_thumb2tip = 0.01
const threshold_thumb2proximal = 0.05
let indexesTipTracking = setInterval( _ => {
// cpnsider getObjectByName() instead
p.object3D.traverse( e => { if (e.name == 'index-finger-tip' ) tip = e.position })
//index-finger-phalanx-distal
//index-finger-phalanx-intermediate
p.object3D.traverse( e => { if (e.name == 'index-finger-phalanx-proximal' ) proximal = e.position })
p.object3D.traverse( e => { if (e.name == 'thumb-tip' ) thumb = e.position })
let touch = {}
touch.date = Date.now()
touch.thumb2tip = thumb.distanceTo(tip)
if (!touch.thumb2tip) return
touch.thumb2proximal = thumb.distanceTo(proximal)
//console.log( touch.thumb2tip, touch.thumb2proximal )
// usually <1cm <4cm (!)
//if ((touch.thumb2tip && touch.thumb2tip < threshold_thumb2tip)
//|| (touch.thumb2proximal && touch.thumb2proximal < threshold_thumb2proximal))
if (touch.thumb2tip < threshold_thumb2tip
|| touch.thumb2proximal < threshold_thumb2proximal){
if (touches.length){
let previous = touches[touches.length-1]
if (touch.date - previous.date < 300){
if (touch.thumb2tip < threshold_thumb2tip &&
previous.thumb2proximal < threshold_thumb2proximal){
console.log('^')
p.emit('thumb2indexpull')
}
if (touch.thumb2proximal < threshold_thumb2proximal &&
previous.thumb2tip < threshold_thumb2tip){
console.log('v')
p.emit('thumb2indexpush')
}
}
}
touches.push(touch)
}
}, 50)
// TODO
// Bind thumb2indexpush/thumb2indexpull to zoom in/out "world" i.e all assets that aren't "special" e.g self, lights, UI
}
let changeovercheck
AFRAME.registerComponent('changeover', {
schema: { color : {type: 'string'} },
init: function () {
// (this.el, this.data.content)
if (changeovercheck) return
let player = document.getElementById('player') // assuming single player, non networked
console.log('adding timer')
changeovercheck = setInterval( _ => {
let pos = player.getAttribute('position').clone()
pos.y = 0.1 // hard coded but should be from component element
let hits = Array.from(document.querySelectorAll('[changeover]'))
.filter( e => e.getAttribute("visible") == true)
.map( t => { return { el: t, dist : pos.distanceTo(t.getAttribute("position") ) } })
.filter( t => t.dist < 0.02 )
.sort( (a,b) => a.dist > b.dist)
//console.log(hits.length)
if (hits.length>0) {
setFeedbackHUD('touching cone')
console.log('touching cone')
hits[hits.length-1].el.setAttribute('color', 'red')
}
}, 50)
}
})
// to add only on selectable elements, thus already with a target component attached
AFRAME.registerComponent('pull', {
events: {
picked: function (evt) {
this.startePos = this.el.getAttribute('position').clone()
this.starteRot = this.el.getAttribute('rotation')//.clone() not necessary as converted first
this.decimtersEl = document.createElement('a-troika-text')
AFRAME.scenes[0].appendChild(this.decimtersEl)
},
moved: function (evt) {
let pos = AFRAME.utils.coordinates.stringify( this.startePos )
let oldpos = AFRAME.utils.coordinates.stringify( this.el.getAttribute('position') )
AFRAME.scenes[0].setAttribute("line__pull", `start: ${oldpos}; end : ${pos};`)
let d = this.startePos.distanceTo( this.el.getAttribute('position') )
// could show a preview state before release, e.g
let decimeters = Math.round(d*10)
console.log('pulling '+decimeters+' pages')
// update visible value instead, ideally under line but still facing user
let textPos = new THREE.Vector3()
textPos.lerpVectors(this.startePos, this.el.getAttribute('position'), .7)
this.decimtersEl.setAttribute('position', textPos )
this.decimtersEl.setAttribute('rotation', this.el.getAttribute('rotation') )
this.decimtersEl.setAttribute('value', decimeters )
},
released: function (evt) {
let d = this.startePos.distanceTo( this.el.getAttribute('position') )
console.log('This entity was released '+ d + 'm away from picked pos')
this.el.setAttribute('position', AFRAME.utils.coordinates.stringify( this.startePos ))
this.el.setAttribute('rotation', AFRAME.utils.coordinates.stringify( this.starteRot ))
AFRAME.scenes[0].removeAttribute("line__pull")
this.decimtersEl.remove()
},
},
});
// ==================================== utils on entities and classes ======================================================
function toggleVisibilityEntitiesFromClass(classname){
let entities = Array.from( document.querySelectorAll("."+classname) )
if (entities.length == 0) return
let state = entities[0].getAttribute("visible") // assume they are all the same
if (state)
entities.map( e => e.setAttribute("visible", "false"))
else
entities.map( e => e.setAttribute("visible", "true"))
}
function pushLeftClass(classname, value=.1){
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.x -= value)
}
function pushRightClass(classname, value=.1){
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.x += value)
}
function pushUpClass(classname, value=.1){
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.y += value)
}
function pushDownClass(classname, value=.1){
// can be used for accessibiliy, either directly or sampling e.g 10s after entering VR to lower based on the estimated user height
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.y -= value)
}
function pushBackClass(classname, value=.1){
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.z -= value)
}
function pushFrontClass(classname, value=.1){
Array.from( document.querySelectorAll("."+classname) ).map( e => e.object3D.position.z += value)
}
function toggleVisibilityAllGenerators(){
generators.split(" ").map( g => toggleVisibilityEntitiesFromClass(g) )
// not hidableassets though
}
function toggleVisibilityAll(){
toggleVisibilityAllGenerators()
toggleVisibilityEntitiesFromClass("hidableassets")
}
function toggleVisibilityAllButClass(classname){
generators.split(" ").filter( e => e != classname).map( g => toggleVisibilityEntitiesFromClass(g) )
toggleVisibilityEntitiesFromClass("hidableassets")
}
function switchSide(){
// should work properly now
document.querySelector("#"+sides[primarySide]+"Hand").removeAttribute("pinchprimary")
document.querySelector("#"+sides[secondarySide]+"Hand").removeAttribute("pinchsecondary")
document.querySelector("#"+sides[secondarySide]+"Hand").removeAttribute("wristattachsecondary")
document.querySelector("#"+sides[secondarySide]+"Hand").setAttribute("pinchprimary", "")
document.querySelector("#"+sides[primarySide]+"Hand").setAttribute("pinchsecondary", "")
if ( document.querySelector("#box") )
document.querySelector("#"+sides[primarySide]+"Hand").setAttribute("wristattachsecondary", "target: #box")
if (primarySide == 0) {
secondarySide = 0
primarySide = 1
} else {
primarySide = 0
secondarySide = 1
}
}
function getIdFromPick(){
let id = null
let pp = selectedElements.filter( e => e.primary )
if (pp && pp[pp.length-1] && pp[pp.length-1].element ){
if (!pp[pp.length-1].element.id) pp[pp.length-1].element.id= "missingid_"+Date.now()
id = pp[pp.length-1].element.id
setFeedbackHUD(id)
}
return id
}
function getClassFromPick(){ // should be classes, for now assuming one
let classFound = null
let pp = selectedElements.filter( e => e.primary )
if (pp && pp[pp.length-1] && pp[pp.length-1].element ){
//if (!pp[pp.length-1].element.className) pp[pp.length-1].element.className= "missingclass"
// arguable
classFound = pp[pp.length-1].element.className
setFeedbackHUD(classFound)
}
return classFound
}
function getArrayFromClass(classname){
return Array.from( document.querySelectorAll("."+classname) )
}
function applyToClass(classname, callback, value){
// example applyToClass("template_object", (e, val ) => e.setAttribute("scale", val), ".1 .1 .2")
getArrayFromClass(classname).map( e => callback(e, value))
// could instead become a jxr shortcut, namely apply a set attribute to a class of entities
}
function addDropZone(position="0 1.4 -0.6", callback=setFeedbackHUD, radius=0.11){
// consider how this behavior could be similar to the wrist watch shortcut
// namely binding it to a jxr function
let el = document.createElement("a-sphere")
el.setAttribute("wireframe", true)
el.setAttribute("radius", radius)
el.setAttribute("position", position)
el.id = "dropzone_"+Date.now()
AFRAME.scenes[0].appendChild( el )
let sphere = new THREE.Sphere( AFRAME.utils.coordinates.parse( position ), radius )
// could become movable but would then need to move the matching sphere too
// could be a child of that entity
let pincher = document.querySelector('[pinchprimary]')
pincher.addEventListener('pinchended', function (event) {
if (selectedElements.length){
let lastDrop = selectedElements[selectedElements.length-1]
if ((Date.now() - lastDrop.timestamp) < 1000){
if (sphere.containsPoint( lastDrop.element.getAttribute("position"))){
// should be a threejs sphere proper, not a mesh
console.log("called back" )
callback( lastDrop.selectedElement )
}
}
}
})
// never unregister
return el
}
function toggleBillboarding(){ billboarding=!billboarding }
// ==================================== facilitating debugging ======================================================
function makeAnchorsVisibleOnTargets(){
targets.map( t => {
let controlSphere = document.createElement("a-sphere")
controlSphere.setAttribute("radius", 0.05)
controlSphere.setAttribute("color", "blue")
controlSphere.setAttribute("wireframe", "true")
controlSphere.setAttribute("segments-width", 8)
controlSphere.setAttribute("segments-height", 8)
t.appendChild( controlSphere )
}) // could provide a proxy to be able to monitor efficiently
}
function switchToWireframe(){
let model = document.querySelector("#environment")?.object3D
if (model) model.traverse( o => { if (o.material) {
let visible = !o.material.wireframe
o.material.wireframe = visible;
o.material.opacity = visible ? 0.05 : 1;
o.material.transparent = visible;
} })
}

@ -1,29 +0,0 @@
function addNewNoteAsPostItNote( text, position=`-0.2 1.1 -0.1`, scale= "0.1 0.1 0.1", id=null, classes="notes", visible="true", rotation="0 0 0" ){
let note = addNewNote( text, position, scale, id, classes, visible, rotation)
//note.setAttribute("troika-text","clipRect","100,100,100,100")
const colorSchemes = {
yellow: {light:'yellow', dark:'orange'},
blue: {light:'cyan', dark:'blue'},
pink: {light:'pink', dark:'red'},
}
let selectedColor = 'yellow'
if (text.match(prefix) ) selectedColor = "blue"
note.setAttribute("troika-text","maxWidth","1")
note.setAttribute("troika-text","outlineWidth","0")
note.setAttribute("troika-text","color","black")
note.setAttribute("troika-text","anchor","left")
note.setAttribute("troika-text","baseline","top")
let backgroundEl = document.createElement("a-plane") // could curve ever so slightly
backgroundEl.setAttribute("color", colorSchemes[selectedColor].light )
backgroundEl.setAttribute("material", "side", "double")
backgroundEl.setAttribute("position", "0.45 -0.45 -0.001")
note.appendChild(backgroundEl)
let cornerEl = document.createElement("a-triangle")
cornerEl.setAttribute("color", colorSchemes[selectedColor].dark )
cornerEl.setAttribute("position", ".8 -.8 0")
cornerEl.setAttribute("rotation", "0 0 45")
cornerEl.setAttribute("scale", ".3 .145 1")
//backgroundEl.setAttribute("vertex-c", "0 0 -0.001")
note.appendChild(cornerEl)
return note
}

@ -18,12 +18,6 @@ Examples, tap to add, optionally modify and send :
<li><a onclick=replaceWithThisText(this)>jxr toggleVisibilityEntitiesFromClass('fot')</a></li>
</ul>
Share this URL to the browser using e.g <a id="shareablelink" href="https://hmd.link">hmd.link</a> on the same WiFi network.
<hr>
<iframe width="100%" id="pastcommands"></iframe>
<hr>
Remote preview, if available :<br/>
<img height="400px" id="remotepreview" />
<hr>
<br>
Documentation as :
@ -35,33 +29,13 @@ Documentation as :
<li>open-source <a href=https://git.benetou.fr/utopiah/text-code-xr-engine/issues>code repository</a> of the code and to make your own suggestions via issues. </li>
<li><a href=qrcode.png>QRcode</a> of this page to share with others also on mobile.</li>
<li><a href=https://fabien.benetou.fr/pub/home/future_of_text_demo/engine/?background=../content/future_of_text_symposium/HORN-2001-FutureOfHumanCognomeCL.png&fontcolor=lightgray>background</a> as URL parameter. Feel free to use your own content.</li>
<li>to create a room to work together in, add or change the ?roomname=<b>YourRoomName</b> in the browser URL
</ul>
<script>
function replaceWithThisText(element){
document.querySelector("textarea").value = element.innerText
}
let pagename
const queryString = window.location.search
const urlParams = new URLSearchParams(queryString)
let = forcedPagename = urlParams.get('roomname')
forcedPagename?pagename=forcedPagename:pagename='FoT'
const baseURL = 'https://fabien.benetou.fr/PIMVRdata/'+pagename
const url = baseURL+'?action='
document.getElementById("pastcommands").src = baseURL+'?action=source'
document.getElementById("shareablelink").href = "https://hmd.link/?https://fabien.benetou.fr/pub/home/future_of_text_demo/engine/?roomname="+pagename
function refreshPreview(){
document.getElementById("remotepreview").src = "https://fabien.benetou.fr/uploads/PIMVRdata/"+pagename+".jpg#"+Date.now()
}
// seems to get cached properly, i.e only transferring when update
setInterval( _ => refreshPreview(), 1000)
const url = 'https://fabien.benetou.fr/PIMVRdata/FoT?action='
function sendtovr(cabin){
text = document.querySelector("textarea").value
document.querySelector("textarea").value = ''

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