aframe-animation-timeline-component
v2.0.0
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A timeline component to use with the A-Frame animation component.
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aframe-animation-timeline-component
A timeline component for A-Frame to use with the animation component for declaratively defining and orchestrating timelines of animations. The animation timeline component depends on the animation component. Make sure to include that.
Latest version requires A-Frame v0.8.0.
Example
<a-scene animation-timeline__1="timeline: #myTimeline; loop: true">
<a-assets timeout="10000">
<a-asset-item src="https://cdn.aframe.io/fonts/Roboto-msdf.json"></a-asset-item>
<a-timeline id="myTimeline">
<a-timeline-animation select="#text1" name="togglevisible"></a-timeline-animation>
<a-timeline-animation select="#text1" name="fadein"></a-timeline-animation>
<a-timeline-animation select="#text1" name="fadeout"></a-timeline-animation>
<a-timeline-animation select="#text1" name="togglevisibleoff"></a-timeline-animation>
<a-timeline-group>
<a-timeline-animation select="a-entity[mixin~=box]" name="fadein"></a-timeline-animation>
<a-timeline-animation select="a-entity[mixin~=box]" name="scale"></a-timeline-animation>
<a-timeline-animation select="a-entity[mixin~=box]" name="color"></a-timeline-animation>
</a-timeline-group>
<a-timeline-group>
<a-timeline-animation select="#text2" name="togglevisible"></a-timeline-animation>
<a-timeline-animation select="#text2" name="fadein"></a-timeline-animation>
<a-timeline-animation select="#text2" name="textcolor"></a-timeline-animation>
</a-timeline-group>
<a-timeline-animation select="#text2" name="fadeout"></a-timeline-animation>
<a-timeline-animation select="#text2" name="togglevisibleoff"></a-timeline-animation>
<a-timeline-animation select="#text3" name="togglevisible"></a-timeline-animation>
<a-timeline-group>
<a-timeline-animation select="a-entity[mixin~=box]" name="color"></a-timeline-animation>
<a-timeline-animation select="a-entity[mixin~=box]" name="rotate"></a-timeline-animation>
<a-timeline-animation select="a-entity[mixin~=box]" name="position"></a-timeline-animation>
<a-timeline-animation select="#text3" name="fadein"></a-timeline-animation>
<a-timeline-animation select="#text3" name="positionin"></a-timeline-animation>
</a-timeline-group>
<a-timeline-animation select="#text3" name="positionout"></a-timeline-animation>
<a-timeline-animation select="#text3" name="togglevisibleoff"></a-timeline-animation>
<a-timeline-animation select="#text4" name="togglevisible"></a-timeline-animation>
<a-timeline-group>
<a-timeline-animation select="#sky" name="color"></a-timeline-animation>
<a-timeline-animation select="#text4" name="fadein"></a-timeline-animation>
</a-timeline-group>
<a-timeline-animation select="#text4" name="fadeout" offset="500"></a-timeline-animation>
</a-timeline>
<a-mixin id="box"
geometry="primitive: box"
material="color: #AAA; opacity: 0"
animation__fadein="property: material.opacity; dur: 2000; from: 0; to: 1; autoplay: false"
animation__scale="property: scale; to: 2 20 2; dur: 2000; easing: easeInOutElastic; autoplay: false"
animation__position="property: position; to: 0 30 -3; dur: 2000; autoplay: false"
animation__color="property: material.color; from: #AAA; to: #222; dur: 2500; autoplay: false"
animation__rotate="property: rotation; to: 0 360; dur: 1000; easing: easeInQuad; autoplay: false"
scale="0.0001 0.0001 0.0001"
></a-mixin>
<a-mixin id="text"
text="align: center; color: #333; width: 6; opacity: 0"
animation__fadein="property: text.opacity; from: 0; to: 1; dur: 3000; easing: linear; autoplay: false"
animation__fadeout="property: text.opacity; from: 1; to: 0; dur: 3000; easing: linear; autoplay: false"
animation__togglevisible="property: visible; from: false; to: true; dur: 1; autoplay: false"
animation__togglevisibleoff="property: visible; from: true; to: false; dur: 1; autoplay: false"
position="0 2 -3"
visible="false"></a-mixin>
</a-assets>
<a-entity id="text1" mixin="text" text="value: Is this real life?"></a-entity>
<a-entity id="text2" mixin="text" text="value: Is this just fantasy?; opacity: 0"
animation__textcolor="property: text.color; from: #FAFAFA; to: #8C200E; dur: 2500; autoplay: false"></a-entity>
<a-entity id="text3" mixin="text" text="value: Caught in a landslide." position="0 -10 0"
animation__positionin="property: position; to: 0 2 -3; dur: 2500; autoplay: false"
animation__positionout="property: position; from: 0 2 -3; to: -10 2 -3; dur: 3500; autoplay: false"></a-entity>
<a-entity id="text4" mixin="text" text="value: No escape from reality."></a-entity>
<a-entity position="0 -0.5 -10">
<a-entity id="box1" mixin="box" position="-4 0 0"></a-entity>
<a-entity mixin="box"></a-entity>
<a-entity mixin="box" position="4 0 0"></a-entity>
</a-entity>
<a-sky id="sky" color="#FAFAFA" animation__color="property: material.color; from: #FAFAFA; to: #111; dur: 2000; autoplay: false"></a-sky>
</a-scene>
API
Elements
The timeline component provides <a-timeline>
, <a-timeline-group>
, and
<a-timeline-animation>
to declaratively define the animation timeline.
<a-timeline id>
Container element. Note <a-timeline>
is just a data container. It is not an
entity, primitive, nor does it do anything on its own. It's meant to be selected
like <a-entity animation-timeline="timeline: #myTimeline">
. Animation and
animation groups under <a-timeline>
play sequentially in order, one after
another once the previous animation or animation group is finished..
| Attribute | Description |
|-----------|------------------------------------------------------------------------------------|
| id | Should be specified in order to select it from the animation-timeline
component. |
<a-timeline-animation select name offset>
<a-timeline-animation>
is used to add animations to the timeline via
reference, either directly under <a-timeline>
or under <a-timeline-group>
.
Note that <a-timeline-animation>
does not define the actual animation
parameters. Animations are defined using the animation
component on the
entity or entities. <a-timeline-animation>
merely points to them and adds
their animation configurations to the timeline object.
Make sure autoplay: false
is set on all timelined animations, and I recommend
specifying from
on each on of those animations. The timeline will not attempt
to grab from values dynamically.
| Attribute | Description |
|-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| select | Selector to entity or entities to animate (e.g., .boxes
or #sphere
). |
| name | ID of the animation component instance defined on the entity or entities. If the entity has an animation component animation__fadein="property: material.opacity
then we would set name="fadein"
. |
| offset | Optional additional time offset in milliseconds to wait for the previous animation in the timeline to finish. |
<a-timeline-group [offset]>
<a-timeline-group>
groups together <a-timeline-animation>
s that we want to
start at the same time. Only once every animation in the group finishes will
the timeline move onto the next animation or animation group.
| Attribute | Description | |-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | offset | Optional additional time offset in milliseconds to wait for the previous animation in the timeline to finish. |
Properties
Pairing with the <a-timeline>
container is the animation-timeline
component. It doesn't really matter which entity (or on <a-scene>
) the
animation-timeline
component is set on since it doesn't operate on any single
entity.
| Property | Description | Default Value |
| -------- | ----------- | ------------- |
| timeline | Selector to <a-timeline>
element. | '' |
| direction | Direction of animation (normal
, reverse
, alternate
). | normal |
| loop | Number of times to loop. Set true
to loop infinitely. | 0 |
| startEvents | Comma-separated list of events to wait that will trigger the timeline animation. If not specified, the animation will autoplay. | '' |
Events
| Event | Description |
|---------------------------|------------------------------------------------------------------------------------------------------------------------------|
| animationtimelinecomplete | Emitted when animation timeline is complete. Event detail contains animation name
(__<ID>
). Not emitted if loop: true
. |
Installation
Browser
Install and use by directly including the browser files:
<head>
<title>My A-Frame Scene</title>
<script src="https://aframe.io/releases/0.9.0/aframe.min.js"></script>
<script src="https://unpkg.com/aframe-animation-component@^4.1.1/dist/aframe-animation-timeline-component.min.js"></script>
<script src="https://unpkg.com/[email protected]/dist/aframe-animation-timeline-component.min.js"></script>
</head>
<body>
<a-scene animation-timeline__1="timeline: #myTimeline">
<a-assets>
<a-timeline id="myTimeline">
<a-timeline-animation select="#welcomeText" name="fadein"></a-timeline-animation>
<a-timeline-animation select="#welcomeText" name="fadeout" offset="500"></a-timeline-animation>
<a-timeline-group>
<a-timeline-animation select=".box" name="scale"></a-timeline-animation>
<a-timeline-animation select=".sphere" name="rotate"></a-timeline-animation>
</a-timeline-group>
</a-timeline>
<a-mixin id="boxScale" animation__scale="property: scale; to: 1.2 1.2 1.2; loop: true; direction: alternate; startEvents: null"></a-mixin>
<a-mixin id="sphereRotate" animation__scale="property: rotation; to: 360 360 360; loop: true; startEvents: null"></a-mixin>
</a-assets>
<a-entity id="welcomeText"
animation-timeline__fadein="property: text.opacity; from: 0; to: 1; startEvents: null"
animation-timeline__fadeout="property: text.opacity; from: 1; to 0; startEvents: null"
text="opacity: 0; value: Welcome to the dankest timeline."
position="0 0 -3"></a-entity>
<a-box class="box" mixin="boxScale" color="red" position="-2 0 0"></a-box>
<a-box class="box" mixin="boxScale" color="red"></a-box>
<a-box class="box" miixn="boxScale" color="red" position="2 0 0"></a-box>
<a-sphere class="sphere" mixin="sphereScale" color="blue" opacity="0.5" position="-2 0 0"></a-sphere>
<a-sphere class="sphere" mixin="sphereScale" color="blue" opacity="0.5"></a-sphere>
<a-sphere class="sphere" miixn="sphereScale" color="blue" opacity="0.5" position="2 0 0"></a-sphere>
</a-scene>
</body>
npm
Install via npm:
npm install aframe-animation-component
npm install aframe-animation-timeline-component
Then require and use.
require('aframe');
require('aframe-animation-component');
require('aframe-animation-timeline-component');