<!DOCTYPE html>
< html >
< title > SpaSca : Spatial Scaffolding< / title >
< head >
<!-- Suggestions? https://git.benetou.fr/utopiah/text - code - xr - engine/issues/ -->
< script src = 'dependencies/aframe.offline.min.js' > < / script >
< script src = "dependencies/a-console.js" > < / script >
< script src = 'dependencies/aframe-troika-text.min.js' > < / script >
< script src = 'dependencies/webdav.js' > < / script >
< script src = 'jxr-core.js?1234' > < / script >
< script src = 'jxr-postitnote.js?13235' > < / script >
< / head >
< body >
< script >
//________________________________________________________________
const endpoint = 'https://192.168.1.6:8443/' // unfortunately not public yet due to API usage on poly.pizza
function getModelFromKeyword(keyword){
fetch(endpoint+"search?keyword="+keyword)
.then(r=>r.json())
.then(r=>getPoly(r.results[0].Download.replace('.glb','').replace(/.*\//,'')))
}
function getPoly(hashid){
fetch(endpoint+'getpoly?id='+hashid)
// assumes it went well
setTimeout( _ => {
let el = document.createElement("a-entity")
el.setAttribute('gltf-model', endpoint+'static/'+hashid+'.glb')
el.setAttribute('position','0 1 -.5')
el.setAttribute('scale','.001 .001 .001')
el.setAttribute('target','true')
AFRAME.scenes[0].appendChild(el)
}, 1000)
}
//________________________________________________________________
// used for keywords like LAST / PREVIOUS / ALL
let addedContent = []
function getAllPrimitives(){
const other_primitives = ["camera", "cursor", "sky", "light", "sound", "videosphere"]
const other_primitives_with_param_needed = ["text", "gltf-model", "obj-model", "troika-text"]
return Object.getOwnPropertyNames(AFRAME.primitives.primitives)
// thanks to https://github.com/Utopiah/aframe-inVR-blocks-based-editor/blob/master/aframe-invr-inspect.js
.map( i => i.replace("a-",""))
.filter( i => other_primitives.indexOf(i) < 0 )
.filter( i => other_primitives_with_param_needed.indexOf(i) < 0 ) / / temporarilty disabled
// .map( (i,j) => addPrimitive( i, ""+ j/7 + " 1.4 -0.5" ) )
.map( (i,j) => i )
} // adapted from https://git.benetou.fr/utopiah/text-code-xr-engine/src/commit/0e1f297ec0cd17b0356811dfa0ab55f1e2629e7c/index.html#L2101
const SpeechRecognition = window.webkitSpeechRecognition;
recognizer = new SpeechRecognition();
recognizer.interimResults = true;
recognizer.continuous = true;
recognizer.lang = 'en-US';
const aframeprimitives = getAllPrimitives()
const speechactions = [ "add", "apply", "delete", "clone", "model" ]
const speechcustomcomponents = [ "target", "teleporter" ]
recognizer.onresult = (event) => {
let result = event.results[event.resultIndex]
if (result.isFinal) {
console.log('You said: ' + result[0].transcript )
// should instead look if starting with speechContent following by aframeprimitives, optionally speechcustomcomponents
// then apply accordingly
let speechContent = result[0].transcript
// let newPostIt = addNewNoteAsPostItNote(speechContent, "0 1.2 -.5")
// could become jxr code proper later, also allowing to re-execute a command again
let cmd_words = speechContent.split(" ").map( i => i.toLowerCase() )
if (cmd_words[0] == speechactions[0]){ // limited to add command for now
console.log("recognized proper command")
let primitive = cmd_words[1] // assuming fixed order for now
let el = document.createElement("a-"+primitive)
el.setAttribute("target", "")
el.setAttribute("scale", ".1 .1 .1")
el.setAttribute("position", "0 1.5 -0.4")
addedContent.push(el)
AFRAME.scenes[0].appendChild( el )
}
if (cmd_words[0] == speechactions[1]){ // limited to apply
console.log("recognized apply command")
addedContent.at(-1).setAttribute( cmd_words[1], cmd_words[2]) // assuming fixed order for now
}
if (cmd_words[0] == speechactions[2])
deleteTarget( addedContent.at(-1) )
let latest = addedContent.at(-1)
if (cmd_words[0] == speechactions[3]){
let el = latest.cloneNode(true) // does not work properly, losing some attributes, in particular scale can be problematic
//["scale", "position", "rotation", "wireframe", "target", "material"].map( prop => el.setAttribute(prop, latest.getAttribute(prop) ) )
//["scale", "position", "rotation", "target" ].map( prop => el.setAttribute(prop, latest.getAttribute(prop) ) )
el.setAttribute("scale", latest.getAttribute("scale") )
el.setAttribute("position", latest.getAttribute("position") )
el.setAttribute("rotation", latest.getAttribute("rotation") )
el.setAttribute("target", latest.getAttribute("target") )
// untested
if (cmd_words[1]) console.log('could clone',cmd_words[1],'n times instead')
// could optionally add a number of times
addedContent.push(el)
AFRAME.scenes[0].appendChild( el )
el.object3D.translateX(1)
}
if (cmd_words[0] == speechactions[4])
getModelFromKeyword( cmd_words[1] )
}
}
recognizer.start();
var forceXaxis
// setInterval( _ => console.log(forceXaxis), 1000)
var translatingTargets = false
var clearRot
function toggleTranslateTargets(){
translatingTargets = !translatingTargets
let scene = AFRAME.scenes[0].object3D
if (translatingTargets){
let anchor = new THREE.Object3D()
let latest = selectedElements[selectedElements.length-1].element
latest.object3D.add( anchor )
// also inherits rotation, could try cancel it as the opposite of latest rotation
// might be easier to copy the position only every few ms instead
anchor.position.sub( latest.object3D.position )
//targets.map( t => anchor.attach(t.object3D) )
// should attach all BUT the current moving entity!
Array.from(document.querySelectorAll('.mab')).map( t => anchor.attach(t.object3D) )
// they don't move... despite
} else {
clearInterval( clearRot )
Array.from(document.querySelectorAll('.mab')).map( t => scene.attach(t.object3D) )
//targets.map( t => scene.attach(t.object3D) )
// could delete anchor, cleaner
}
}
var attachToPlayer = false
function toggleAttachToSelf(){
attachToPlayer = !attachToPlayer
attachToPlayer ? parent=document.querySelector("#player") : parent=AFRAME.scenes[0]
targets.map( t => parent.object3D.attach(t.object3D) )
}
function checkIntersection(latest, nearby){
//let latest = selectedElements[selectedElements.length-1].element
//let nearby = getClosestTargetElements( latest.getAttribute('position') )
// https://threejs.org/docs/?q=box#api/en/math/Box3.containsBox
// https://threejs.org/docs/?q=box#api/en/math/Box3.expandByObject
let a = new THREE.Box3().expandByObject( latest.object3D ) // consider mesh.geometry.computeBoundingBox() first
let b = new THREE.Box3().expandByObject( nearby.object3D )
console.log(a,b, a.containsBox(b))
// testable as checkIntersection( document.querySelector("[color='yellow']"), document.querySelector("[color='purple']") )
// < a-box scale = ".1 .1 .1" position = ".5 .8 -.3" color = "purple" > < / a-box >
// < a-box scale = ".2 .2 .2" position = ".5 .8 -.3" color = "yellow" > < / a-box >
}
setTimeout( _ => {
let newPostIt = addNewNoteAsPostItNote("jxr console.log(222);", "0 1.2 -.5")
.setAttribute("onreleased", "grammarBasedSnap()")
let otherPostIt = addNewNoteAsPostItNote("jxr console.log(111);", "0 1.4 -.5")
.setAttribute("onreleased", "grammarBasedSnap()")
let postIt = addNewNoteAsPostItNote("hi this is a post-it note.", "0 1.6 -.5")
.setAttribute("onreleased", "runClosestJXR(); grammarBasedSnap()") // dunno how to share the event context back here...
// .setAttribute("onreleased", "snapNext()") // does NOT support multiple instances for now
// see https://aframe.io/docs/1.5.0/core/component.html#multiple
// maybe bind could help
//let cloneMe = addNewNote('jxr clone me from corner', '0 0 .1', '1 1 1', 'cmd')
// should rebind parent...
//setTimeout( _ => { _ => cloneMe.object3D.parent = postIt.object3D }, 1000 )
// should try object3D.attach() instead
//.addEventListener('loaded',
// entityIndexes( document.querySelector("[color='blue']").object3D.children[0] )
}, 1000 )
// e.g document.querySelector("[color='blue']").object3D.children[0]
function entityIndexes(mesh){ // needs a mesh with a geometry, not a group
// could also traverse
let gp = mesh.geometry.attributes.position;
let wPos = [];
for(let i = 0;i < gp.count ; i + + ) {
let p = new THREE.Vector3().fromBufferAttribute(gp, i); // set p from `position`
mesh.localToWorld(p); // p has wordl coords
wPos.push(p);
}
// many are duplicates, i.e a a cube will return 24 indexes (4 per 6 faces), not 8
//let l = [...new Set(wPos)].length; console.log( l )
[...new Set(wPos)].map( p => addNewNote("x", p))
console.log( [...new Set(wPos)].length )
// seems to add the duplicates again
// try to "de-dup" via .distanceTo() below a threshold instead
}
function snapToGrid(gridSize=1){ // default as 1 decimeter
let latest = selectedElements[selectedElements.length-1].element
latest.setAttribute("rotation", "0 0 0")
let pos = latest.getAttribute("position")
pos.multiplyScalar(gridSize*10).round().divideScalar(gridSize*10)
latest.setAttribute("position", pos )
}
// deeper question, making the rules themselves manipulable? JXR?
// So the result of the grammar becomes manipulable, but could you make the rules of the grammar itself visual? Even manipulable?
// could start by visualizing examples first e.g https://writer.com/wp-content/uploads/2024/03/grammar-1.webp
function snapMAB(){
// multibase arithmetic blocks aka MAB cf https://en.wikipedia.org/wiki/Base_ten_block
let latest = selectedElements[selectedElements.length-1].element
let nearby = getClosestTargetElements( latest.getAttribute('position') )
let linked = []
if (nearby.length>0){
latest.setAttribute("rotation", AFRAME.utils.coordinates.stringify( nearby[0].el.getAttribute("rotation") ) )
latest.setAttribute("position", AFRAME.utils.coordinates.stringify( nearby[0].el.getAttribute("position") ) )
latest.object3D.translateX( 1/10 )
linked.push( latest )
linked.push( nearby[0].el )
let overlap = Array.from( document.querySelectorAll(".mab") ).filter( e => e.object3D.position.distanceTo( latest.object3D.position ) < 0.01 & & e ! = latest )
while (overlap.length > 0 ){
latest.object3D.translateX( 1/10 )
linked.push( overlap[0] )
overlap = Array.from( document.querySelectorAll(".mab") ).filter( e => e.object3D.position.distanceTo( latest.object3D.position ) < 0.01 & & e ! = latest )
}
// do something special if it becomes 10, e.g become a single line, removing the "ridges"
if (linked.length > 3)
linked.map( e => Array.from( e.querySelectorAll("a-box") ).setAttribute("color", "orange") )
// also need to go backward too to see if it's the latest added
}
}
function snapRightOf(){
let latest = selectedElements[selectedElements.length-1].element
let nearby = getClosestTargetElements( latest.getAttribute('position') )
if (nearby.length>0){
latest.setAttribute("rotation", AFRAME.utils.coordinates.stringify( nearby[0].el.getAttribute("rotation") ) )
latest.setAttribute("position", AFRAME.utils.coordinates.stringify( nearby[0].el.getAttribute("position") ) )
latest.object3D.translateX( 1/10 )
// somehow... works only the 2nd time, not the 1st?!
}
}
function grammarBasedSnap(){
// verify if snappable, e.g of same type (or not)
// e.g check if both have .getAttribute('value').match(prefix) or not
let latest = selectedElements[selectedElements.length-1].element
let nearby = getClosestTargetElements( latest.getAttribute('position') )
if (nearby.length>0){
let closest = nearby[0].el
let latestTypeJXR = latest.getAttribute('value').match(prefix)
let closestTypeJXR = latest.getAttribute('value').match(prefix)
latest.setAttribute("rotation", AFRAME.utils.coordinates.stringify( closest.getAttribute("rotation") ) )
latest.setAttribute("position", AFRAME.utils.coordinates.stringify( closest.getAttribute("position") ) )
if ( latestTypeJXR & & closestTypeJXR )
latest.object3D.translateX( 1/10 ) // same JXR type, snap close
else
latest.object3D.translateX( 2/10 ) // different types, snap away
// somehow... works only the 2nd time, not the 1st?!
}
}
function cloneTarget(target){
let el = target.cloneNode(true)
if (!el.id)
el.id = "clone_" + crypto.randomUUID()
else
el.id += "_clone_" + crypto.randomUUID()
AFRAME.scenes[0].appendChild(el)
}
function deleteTarget(target){
targets = targets.filter( e => e != target)
target.remove()
}
function runClosestJXR(){
// ideally this would come from event details
let latest = selectedElements[selectedElements.length-1].element
let nearby = getClosestTargetElements( latest.getAttribute('position') )
// if (nearby.length>0){ interpretJXR( nearby[0].el.getAttribute("value") ) }
nearby.map( n => interpretJXR( n.el.getAttribute("value") ) )
}
function notesFromArray(data, generatorName="", field="title", offset=1, step=1/10, depth=-.5 ){
data.slice(0,maxItemsFromSources).map( (n,i) => {
addNewNote( n[field], "0 "+(offset+i*step)+" "+depth, ".1 .1 .1", null, generatorName )
.setAttribute("onreleased","spreadItemsFromCollection('getcsljson', 1.5)")
})
}
function spreadItemsFromCollection( generatorName, offset=1, step=1/10, depth=-.5 ){
getArrayFromClass(generatorName).sort((a,b)=>a.getAttribute('position').y-b.getAttribute('position').y).map( (n,i) => {
n.setAttribute('position', "0 "+(offset+i*step)+" "+depth)
n.setAttribute('rotation', "0 0 0") // could also be based on the average of all items, the first item, last one, etc
// see also snap-on-pinchended component
})
let items = getArrayFromClass(generatorName).sort((b,a)=>a.getAttribute('position').y-b.getAttribute('position').y).map( n => n.getAttribute('value') )
shareLiveEvent('modified list', items)
}
AFRAME.registerComponent('onemptypinch', { // changed from ondrop to be coherent with event name
init: function(){
AFRAME.scenes[0].addEventListener('enter-vr', e => {
console.log('entered vr')
document.querySelector("[cursor]").setAttribute("visible", "true")
document.querySelector("[camera]").setAttribute("cursor", "")
})
},
// could support multi
events: {
emptypinch: function (e) {
// works with AFRAME.scenes[0].emit('emptypinch', {position:"0 0 0"})
let code = this.el.getAttribute('onemptypinch')
// 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)
} catch (error) {
console.error(`Evaluation failed with ${error}`);
}
}
}
})
function onHoveredTeleport(){
// iterate over targets
// see instead of teleportable https://aframe.io/docs/1.5.0/components/cursor.html#configuring-the-cursor-through-the-raycaster-component
Array.from( document.querySelectorAll("[teleporter]") ).map( target => {
if ( target.states.includes( "cursor-hovered" ) ){
target.setAttribute("material", "color", "magenta") // visited
document.getElementById('rig').setAttribute('position', target.getAttribute("position") )
}
})
}
AFRAME.registerComponent('teleporter', {
init: function(){
this.el.setAttribute("opacity", .5)
if (window.location.hash & & document.querySelector(window.location.hash+"[teleporter]"))
document.getElementById('rig').setAttribute('position', document.querySelector(window.location.hash+"[teleporter]").getAttribute("position") )
},
events: {
mouseenter: function (e) { this.el.setAttribute("opacity", .8) },
mouseleave: function (e) { this.el.setAttribute("opacity", .5) },
click: function (e) {
let posTarget = new THREE.Vector3()
this.el.object3D.getWorldPosition( posTarget )
console.log( posTarget)
document.getElementById('rig').setAttribute('position', posTarget)
// seems to work, maybe inteference with others teleporters activated unknowingly, e.g in succession
}
// this.el.getAttribute("position") ) }
// does not get proper world position
// makes it compatible with mouse on desktop ... but also somehow enable the wrist shortcut?!
}
});
AFRAME.registerComponent('scaffolding', {
init: function(){
console.log(this.el.innerHTML)
// should become editable then saved back/replaced (or cloned)
// could do a test with switching to wireframe or grey color
// BT keyboard does get focus on Vision Pro too
// enter key does not seem to work though
// it does work on desktop tso should console.log() what keypresses are actually received
// Meta+Enter does work though! (on Corne-ish Zen it's Linux key with Enter)
// still prepare jxr regexes
// e.g el = document.querySelector("[scaffolding]")l el.innerHTML = el.innerHTML.replaceAll("< a-cylinder " , " < a-cylinder wireframe = true")
// block based too
// responsive pedagogical way, as discuss with Adam particularly, metaphor of the electrician and consecutive pannels with limited access
// put this.el.innerHTML on a plane, e.g 1x1 black plane at back of current scaffolding
// arrow keys (on physical keyboard) move through that, initially changing color or current char
// use a font that faciliates positionning
// as done before, make the carret, e.g | directly in the content text itself
// on save (ESC? to define and test), remove carret then save back to this.el.innerHTML
}
});
let page = "Wiki.VirtualRealityInterface";
let pageFromParam = AFRAME.utils.getUrlParameter('page')
if (pageFromParam) page = pageFromParam
setTimeout( _ => {
Array.from( document.querySelectorAll("[value='"+page+"']") ).map( n =>
n.setAttribute("onreleased", "console.log('dropped, should toggle display children,"+n.id+"')"));
Array.from( document.querySelectorAll("[value='"+page+"']>a-sphere") ).map( n => n.setAttribute("color", "purple"))
}, 5000)
< / script >
< 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 = 'gitea_logo.svg' >
< / a >
< / div >
< a-scene startfunctions onemptypinch = "onHoveredTeleport()" >
< a-gltf-model hide-on-enter-ar = "" id = "environment" src = "../content/CubeRoom.glb" rotation = "0 -90 0" position = "0 0 1" scale = "" > < / a-gltf-model >
<!-- Cube Room by Anonymous [CC - BY] via Poly Pizza -->
< a-entity id = "rig" >
< a-entity id = "player" networked = "template:#avatar-template;attachTemplateToLocal:false;"
hud camera look-controls wasd-controls position="0 1.6 0">
< a-entity cursor position = "0 0 -1"
geometry="primitive: ring; radiusInner: 0.005; radiusOuter: 0.01"
material="color: black; shader: flat; opacity:.05;"
>< / a-entity >
< / 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-console position = "2 2 0" rotation = "0 -45 0" font-size = "34" height = 1 skip-intro = true > < / a-console >
< / a-entity >
< a-box pressable start-on-press id = "box" scale = "0.05 0.05 0.05" color = "pink" > < / a-box >
< a-troika-text value = "SpaSca : Spatial Scaffolding" anchor = "left" outline-width = "5%" font = "../content/ChakraPetch-Regular.ttf" position = "-3 5 -2"
scale="3 3 3" rotation="80 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 = "lightgray" > < / a-sky >
< 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 value = "jxr onNextPrimaryPinch(deleteTarget)" target position = " -0.3 1.50 0" rotation = "0 40 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
< a-troika-text anchor = left value = "jxr onNextPrimaryPinch(cloneTarget)" target position = " -0.3 1.60 0" rotation = "0 40 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
< a-troika-text anchor = left value = "jxr location.reload()" target position = " -0.3 1.30 0" rotation = "0 40 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
< a-troika-text anchor = left value = "jxr makeAnchorsVisibleOnTargets()" target position = " -0.3 1.20 0" rotation = "0 40 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
< a-troika-text anchor = left value = "forceXaxis toggling"
onreleased="console.log('run on released');forceXaxis=!forceXaxis"
onpicked="console.log('run on picked');forceXaxis=!forceXaxis"
target position=" -0.3 1.45 0" rotation="0 40 0" scale="0.1 0.1 0.1">< / a-troika-text >
< a-troika-text anchor = left value = "translate targets"
onreleased="toggleTranslateTargets()"
onpicked="toggleTranslateTargets()"
target position=" 1 1.45 -.2" rotation="0 -40 0" scale="0.1 0.1 0.1">< / a-troika-text >
< a-troika-text anchor = left value = "jxr setTimeout( _ => toggleAttachToSelf(), 1000); toggleAttachToSelf()" target position = " -0.3 1.25 0" rotation = "0 40 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
< a-box scale = ".07 .07 .07" class = "mab" target position = ".3 1.6 -.5" color = "brown" onreleased = "snapMAB()" >
< a-box scale = "1.5 1.5 1" color = "brown" > < / a-box >
< a-box scale = "1 1.5 1.5" color = "brown" > < / a-box >
< a-box scale = "1.5 1 1.5" color = "brown" > < / a-box >
< / a-box >
< a-box scale = ".07 .07 .07" class = "mab" target position = ".1 1.6 -.5" color = "brown" onreleased = "snapMAB()" >
< a-box scale = "1.5 1.5 1" color = "brown" > < / a-box >
< a-box scale = "1 1.5 1.5" color = "brown" > < / a-box >
< a-box scale = "1.5 1 1.5" color = "brown" > < / a-box >
< / a-box >
< a-box scale = ".07 .07 .07" class = "mab" target position = ".5 1.6 -.5" color = "brown" onreleased = "snapMAB()" >
< a-box scale = "1.5 1.5 1" color = "brown" > < / a-box >
< a-box scale = "1 1.5 1.5" color = "brown" > < / a-box >
< a-box scale = "1.5 1 1.5" color = "brown" > < / a-box >
< / a-box >
< a-box scale = ".07 .07 .07" class = "mab" target position = "-.5 1.6 -.5" color = "brown" onreleased = "snapMAB()" >
< a-box scale = "1.5 1.5 1" color = "brown" > < / a-box >
< a-box scale = "1 1.5 1.5" color = "brown" > < / a-box >
< a-box scale = "1.5 1 1.5" color = "brown" > < / a-box >
< / a-box >
< a-box scale = ".1 .1 .1" target position = ".5 1.6 -.3" color = "blue" onreleased = "snapToGrid()"
annotation="content:could also show/hide grid with gridHelper on pinch started and hide on release"
>< / a-box >
< a-box scale = ".1 .1 .1" target position = ".5 1.8 -.3" color = "blue" onreleased = "snapToGrid()" > < / a-box >
< a-box scale = ".1 .1 .1" position = ".5 .8 -.3" color = "purple" > < / a-box >
< a-box scale = ".2 .2 .2" position = ".5 .8 -.3" color = "yellow" > < / a-box >
< a-box teleporter height = ".1" class = "teleportable" material = "color: cyan" position = "3.5 0 -3.5" > < / a-box >
< a-box teleporter height = ".1" class = "teleportable" material = "color: cyan" position = "-4 0 4" > < / a-box >
< a-box teleporter height = ".1" class = "teleportable" material = "color: cyan" position = "3 3 4" >
< a-troika-text anchor = left value = "jxr location.reload()" target position = "0 1.30 -.5" rotation = "0 0 0" scale = "0.1 0.1 0.1" > < / a-troika-text >
<!-- works to execute but not to move, should either reparent or take into account the parent offset while moving -->
<!-- see pinchmoved in primary pinch in jxr - core.js as potential solution -->
< / a-box >
< a-box teleporter height = ".1" class = "teleportable" material = "color: cyan" position = "0 0 0" > < / a-box >
< a-box id = "namedteleporter" teleporter height = ".1" class = "teleportable" material = "color: cyan" position = "2 0 2" > < / a-box >
< a-box target teleporter height = ".1" depth = ".1" width = ".1" class = "teleportable" material = "color: red" position = "0 1 -.5" > < / a-box >
< a-entity position = "-1 1 -3.5" scaffolding >
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