A-Frameで手っ取り早くOculus Questの入力を取得するサンプルです。
本記事では、getElementByIdで各コントローラの情報を取得したあとに入力イベントを追加する方法(sample1)と、AFRAME.registerComponentを使って入力情報を取得するコンポーネントを自作する方法(sample2)の2通りを掲載しています。どちらも同じような結果が得られますので、わかりやすい方を参考にしてください。
なおsample1のコードの概要はこちらのブログ[LINK]にて解説しています。
また、公式サイト[LINK]でsampl2で用いているcomponent追加方法の詳細が記載されています。
詳しいことを知りたい方ははぜひこれらをご一読ください。
#1. 体験
Oculus Questを装着しWebブラウザでご覧ください。
https://quest-test.glitch.me
Videoデモ
#2. サンプルコード
##sample1
getElementByIdでコントローラを取得してアクションリスナを追加。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Oculus Quest Input</title>
<meta name="description" content="Oculus Quest Input">
<script src="https://aframe.io/releases/0.9.2/aframe.min.js"></script>
</head>
<body>
<a-scene background="color: #FAFAFA">
<a-box position="-1 0.5 -3" rotation="0 45 0" color="#4CC3D9" shadow></a-box>
<a-sphere position="0 1.25 -5" radius="1.25" color="#EF2D5E" shadow></a-sphere>
<a-cylinder position="1 0.75 -3" radius="0.5" height="1.5" color="#FFC65D" shadow></a-cylinder>
<a-plane position="0 0 -4" rotation="-90 0 0" width="4" height="4" color="#7BC8A4" shadow></a-plane>
<a-entity id="ctlL" laser-controls="hand: left"></a-entity>
<a-entity id="ctlR" laser-controls="hand: right"></a-entity>
<a-entity camera look-controls position="0 1.6 0">
<a-text id="txt" value="" position="0 0 -1" scale="0.4 0.4 0.4" align="center" color="#000000"></a-text>
<a-text id="txt2" value="" position="0 -0.15 -1" scale="0.4 0.4 0.4" align="center" color="#000000"></a-text>
</a-entity>
</a-scene>
<script>
const ctlL = document.getElementById("ctlL");
const ctlR = document.getElementById("ctlR");
const txt = document.getElementById("txt");
const txt2 = document.getElementById("txt2");
//Getting Position of Right Controller.
const timer = setInterval(() => {
var p=ctlR.object3D.position;
txt2.setAttribute("value","R-Position: "+ p.x.toFixed(2)+", "+p.y.toFixed(2)+", "+p.z.toFixed(2));
}, 100);
//Stick Moved
ctlL.addEventListener('axismove',function(event){
txt.setAttribute("value", "L Stick x:"+event.detail.axis[0].toFixed(2)+", y:"+event.detail.axis[1].toFixed(2));
});
ctlR.addEventListener('axismove',function(event){
txt.setAttribute("value", "R Stick x:"+event.detail.axis[0].toFixed(2)+", y:"+event.detail.axis[1].toFixed(2));
});
//Trigger Touch Started
ctlL.addEventListener('triggertouchstart', function (event) {
txt.setAttribute("value","Left touch started ");
});
ctlR.addEventListener('triggertouchstart', function (event) {
txt.setAttribute("value","Right touch started");
});
//Trigger Touch Ended
ctlL.addEventListener('triggertouchend', function (event) {
txt.setAttribute("value","Left touch ended ");
});
ctlR.addEventListener('triggertouchend', function (event) {
txt.setAttribute("value","Right touch ended");
});
//Trigger Pressed
ctlL.addEventListener('triggerdown', function (event) {
txt.setAttribute("value","Left trigger down");
});
ctlR.addEventListener('triggerdown', function (event) {
txt.setAttribute("value","Right trigger down");
});
//Trigger Released
ctlL.addEventListener('triggerup', function (event) {
txt.setAttribute("value","Left trigger up");
});
ctlR.addEventListener('triggerup', function (event) {
txt.setAttribute("value","Right trigger up");
});
//Grip Pressed
ctlL.addEventListener('gripdown', function (event) {
txt.setAttribute("value","Left gripdown down");
});
ctlR.addEventListener('gripdown', function (event) {
txt.setAttribute("value","Right gripdown down");
});
//Grip Released
ctlL.addEventListener('gripup', function (event) {
txt.setAttribute("value","Left gripdown up");
});
ctlR.addEventListener('gripup', function (event) {
txt.setAttribute("value","Right gripdown up");
});
//A-buttorn Pressed
ctlR.addEventListener('abuttondown', function (event) {
txt.setAttribute("value","Right A-button down");
});
//A-buttorn Released
ctlR.addEventListener('abuttonup', function (event) {
txt.setAttribute("value","Right A-button up");
});
//B-buttorn Pressed
ctlR.addEventListener('bbuttondown', function (event) {
txt.setAttribute("value","Right B-button down");
});
//B-buttorn Released
ctlR.addEventListener('bbuttonup', function (event) {
txt.setAttribute("value","Right B-button up");
});
//Y-buttorn Pressed
ctlL.addEventListener('ybuttondown', function (event) {
txt.setAttribute("value","Left Y-button down");
});
//Y-buttorn Released
ctlL.addEventListener('ybuttonup', function (event) {
txt.setAttribute("value","Left Y-button up");
});
//X-buttorn Pressed
ctlL.addEventListener('xbuttondown', function (event) {
txt.setAttribute("value","Left X-button down");
});
//X-buttorn Released
ctlL.addEventListener('xbuttonup', function (event) {
txt.setAttribute("value","Left X-button up");
});
</script>
</body>
</html>
##sample2
コントローラにinput-listenerコンポーネントを追加。
<!DOCTYPE html>
<html>
<!--https://github.com/TakashiYoshinaga/Oculus-Quest-Input-Sample-->
<head>
<meta charset="utf-8">
<title>Oculus Quest Input</title>
<meta name="description" content="Oculus Quest Input">
<script src="https://aframe.io/releases/0.9.2/aframe.min.js"></script>
</head>
<body>
<script>
AFRAME.registerComponent('input-listener', {
//Definition of right or left hand as a controller's property.
schema: {
hand: { type: "string", default: "" }
},
//Initialization
init:function () {
this.el.txt = document.getElementById("txt");
this.el.txt2 = document.getElementById("txt2");
//Stick Moved
this.el.addEventListener('axismove',function(event){
this.txt.setAttribute("value", "Stick x:"+event.detail.axis[0].toFixed(2)+", y:"+event.detail.axis[1].toFixed(2));
});
//Trigger Touch Started
this.el.addEventListener('triggertouchstart', function (event) {
this.txt.setAttribute("value","Trigger touch started ");
});
//Trigger Touch Ended
this.el.addEventListener('triggertouchend', function (event) {
this.txt.setAttribute("value","Trigger touch ended");
});
//Trigger Pressed
this.el.addEventListener('triggerdown', function (event) {
this.txt.setAttribute("value","Trigger down");
});
//Trigger Released
this.el.addEventListener('triggerup', function (event) {
this.txt.setAttribute("value","Trigger up");
});
//Grip Pressed
this.el.addEventListener('gripdown', function (event) {
this.txt.setAttribute("value","Gipdown down");
});
//Grip Released
this.el.addEventListener('gripup', function (event) {
this.txt.setAttribute("value","Gripdown up");
});
//A-buttorn Pressed
this.el.addEventListener('abuttondown', function (event) {
this.txt.setAttribute("value","A-button down");
});
//A-buttorn Released
this.el.addEventListener('abuttonup', function (event) {
this.txt.setAttribute("value","A-button up");
});
//B-buttorn Pressed
this.el.addEventListener('bbuttondown', function (event) {
this.txt.setAttribute("value","B-button down");
});
//B-buttorn Released
this.el.addEventListener('bbuttonup', function (event) {
this.txt.setAttribute("value","B-button up");
});
//Y-buttorn Pressed
this.el.addEventListener('ybuttondown', function (event) {
this.txt.setAttribute("value","Y-button down");
});
//Y-buttorn Released
this.el.addEventListener('ybuttonup', function (event) {
this.txt.setAttribute("value","Y-button up");
});
//X-buttorn Pressed
this.el.addEventListener('xbuttondown', function (event) {
this.txt.setAttribute("value","X-button down");
});
//X-buttorn Released
this.el.addEventListener('xbuttonup', function (event) {
this.txt.setAttribute("value","X-button up");
});
},
//called evry frame
tick: function () {
//Position of righ-hand controller is shown in real-time.
if(this.data.hand=="right"){
var p=this.el.object3D.position;
this.el.txt2.setAttribute("value","R-Position: "+ p.x.toFixed(2)+", "+p.y.toFixed(2)+", "+p.z.toFixed(2));
}
}
});
</script>
<a-scene background="color: #FAFAFA">
<a-box position="-1 0.5 -3" rotation="0 45 0" color="#4CC3D9" shadow></a-box>
<a-sphere position="0 1.25 -5" radius="1.25" color="#EF2D5E" shadow></a-sphere>
<a-cylinder position="1 0.75 -3" radius="0.5" height="1.5" color="#FFC65D" shadow></a-cylinder>
<a-plane position="0 0 -4" rotation="-90 0 0" width="4" height="4" color="#7BC8A4" shadow></a-plane>
<a-entity id="ctlL" laser-controls="hand: left" input-listener="hand: left"></a-entity>
<a-entity id="ctlR" laser-controls="hand: right" input-listener="hand: right"></a-entity>
<a-entity camera look-controls position="0 1.6 0">
<a-text id="txt" value="" position="0 0 -1" scale="0.4 0.4 0.4" align="center" color="#000000"></a-text>
<a-text id="txt2" value="" position="0 -0.15 -1" scale="0.4 0.4 0.4" align="center" color="#000000"></a-text>
</a-entity>
</a-scene>
</body>
</html>
#3. CGとのインタラクション
コントローラを用いてテレポートやマニピュレーション、弾の発射、物理演算の適用などVRに必要そうな要素を盛り込んだサンプルをGitHubやGlitchで公開しています。ご興味があれば是非こちらもご活用ください。
Qiita
https://qiita.com/Tks_Yoshinaga/items/bd7f85a2eada4f6a9113
GitHub
https://github.com/TakashiYoshinaga/Oculus-Quest-Interaction-Sample
体験
https://quest-demo.glitch.me
Videoデモ
