xrsh-com/com/xd.js

112 lines
3.3 KiB
JavaScript

AFRAME.registerComponent('xd', {
schema: {
foo: { type:"string"}
},
init: function () {
if( Object.keys(this.el.components).length > 1 ) return // we collect a-entities which wish to be toggled in this.showElements()
this.el.sceneEl.addEventListener('enter-vr',() => this.toggle(true) )
this.el.sceneEl.addEventListener('exit-vr', () => this.toggle(false) )
this.el.sceneEl.addEventListener('2D', () => this.showElements(false) )
this.el.sceneEl.addEventListener('3D', () => this.showElements(true) )
// toggle immersive with ESCAPE
document.body.addEventListener('keydown', (e) => e.key == 'Escape' && this.toggle() )
document.head.innerHTML += `<style type="text/css">
.XR #toggle_overlay{
background: transparent;
color: #3aacff;
}
.XR #overlay{
visibility: hidden;
}
</style>`
this.events.launcher = () => this.toggle()
},
showElements: function(state){
let els = [...document.querySelectorAll('[xd]')]
els = els.filter( (el) => el != this.el ? el : null ) // filter out self
els.map( (el) => el.setAttribute("visible", state ? "true" : false ) )
},
// draw a button so we can toggle apps between 2D / XR
toggle: function(state){
state = state || !document.body.className.match(/XR/)
document.body.classList[ state ? 'add' : 'remove'](['XR'])
AFRAME.scenes[0].emit( state ? '3D' : '2D')
},
manifest: { // HTML5 manifest to identify app to xrsh
"short_name": "XD",
"name": "2D/3D switcher",
"icons": [],
"id": "/?source=pwa",
"start_url": "/?source=pwa",
"background_color": "#3367D6",
"display": "standalone",
"scope": "/",
"theme_color": "#3367D6",
"category":"system",
"shortcuts": [
{
"name": "What is the latest news?",
"cli":{
"usage": "helloworld <type> [options]",
"example": "helloworld news",
"args":{
"--latest": {type:"string"}
}
},
"short_name": "Today",
"description": "View weather information for today",
"url": "/today?source=pwa",
"icons": [{ "src": "/images/today.png", "sizes": "192x192" }]
}
],
"description": "use ESC-key to toggle between 2D / 3D",
"screenshots": [
{
"src": "/images/screenshot1.png",
"type": "image/png",
"sizes": "540x720",
"form_factor": "narrow"
}
],
"help":`
Helloworld application
This is a help file which describes the application.
It will be rendered thru troika text, and will contain
headers based on non-punctualized lines separated by linebreaks,
in above's case "\nHelloworld application\n" will qualify as header.
`
}
});
AFRAME.utils.XD = function(){
return document.body.classList.contains('XR') ? '3D' : '2D'
}
AFRAME.utils.XD.getPositionInFrontOfCamera = function(distance){
const camera = AFRAME.scenes[0].camera;
let pos = new THREE.Vector3()
let direction = new THREE.Vector3();
// Get camera's forward direction (without rotation)
camera.getWorldDirection(direction);
camera.getWorldPosition(pos)
direction.normalize();
// Scale the direction by 1 meter
if( !distance ) distance = 1.5
direction.multiplyScalar(distance);
// Add the camera's position to the scaled direction to get the target point
pos.add(direction);
return pos
}