aframe-look-at-component
Version:
Rotate an entity to face towards another entity in A-Frame
82 lines (75 loc) • 4.83 kB
HTML
<html>
<head>
<title>Basic</title>
<meta name="description" content="Entities following and rotating to face a single animating target">
<meta property="og:image" content="https://raw.githubusercontent.com/supermedium/superframe/master/components/look-at/examples/basic/preview.gif"></meta>
<script src="https://aframe.io/releases/0.9.0/aframe.min.js"></script>
<script src="../../dist/aframe-look-at-component.min.js"></script>
<script>
/**
* Use the spacebar to swap the camera to one that is looking at the target.
*
* Probably shouldn't do it in VR.
*/
AFRAME.registerComponent('toggleable-camera', {
init: function () {
document.addEventListener('keydown', AFRAME.utils.bind(this.toggleCamera, this));
},
toggleCamera: function (e) {
if (e.code === 'Space') {
if (this.el.hasAttribute('camera')) {
this.el.removeAttribute('camera');
this.el.sceneEl.querySelector('#look-cam').setAttribute('camera', 'active', true);
} else {
this.el.setAttribute('camera', { active: true });
}
}
}
})
</script>
</head>
<body>
<a-scene>
<a-entity id="look-cam" look-controls wasd-controls position="0 1.6 0"></a-entity>
<a-entity id="container" position="0 0 -4">
<!-- A target entity -->
<a-sphere id="target" color="#404040" radius="0.5"
animation="property: position; from: -8 6 -8; to: 8 -3 -2; dur: 1500; loop: true; dir: alternate"></a-sphere>
<!-- Entities look at the target -->
<a-entity position="5 3 0" rotation="0 70 0">
<a-box width="1" depth="1" height="1" color="#01A1F1" look-at="#target" position="-2 0 -4"></a-box>
</a-entity>
<a-box width="1" depth="1" height="1" color="#4CC3D9" look-at="#target"
position="-4 0 -2"></a-box>
<a-cylinder radius="0.6" height="2" color="#7BC8A4" look-at="#target"
position="0 0 -2"></a-cylinder>
<a-box width="0.5" depth="1" height="2" color="#F16745" look-at="#target"
position="4 0 -2"></a-box>
<a-cylinder radius="0.2" height="2" color="#7BC8A4" look-at="#target"
position="-4 0 1"></a-cylinder>
<a-box width="2" depth="1" height="0.25" color="#93648D" look-at="#target"
position="0 0 1" toggleable-camera></a-box>
<a-box width="1" depth="2" height="0.5" color="#999" look-at="#target"
position="4 0 1"></a-box>
<!-- This entity looks at the camera. Use WASD controls to test it -->
<a-box width="2" depth="2" height="2" color="#FFC65D" look-at="#look-cam"
position="-6 2.5 -2"></a-box>
<!-- This entity looks at the origin. Cone rotated to point in its lookAt direction. -->
<a-entity position="-4 4 -8" look-at="0 0 0">
<a-cone height="1" color="#C388A3" radius-bottom="0.5" radius-top="0" rotation="90 0 0"></a-cone>
</a-entity>
</a-entity>
<a-sky color="#ECECEC"></a-sky>
</a-scene>
<!--githubcorner-->
<a href="https://github.com/supermedium/superframe/tree/master/components/look-at/examples/basic/" class="github-corner">
<svg width="80" height="80" viewBox="0 0 250 250" style="fill: #111; color: #EFEFEF; position: fixed; bottom: 0; border: 0; left: 0; transform: rotate(180deg); opacity: 0.8">
<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path>
</svg>
</a>
<style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}
</style>
<!--endgithubcorner-->
</body>
</html>