es6-tween

ES6 implementation of tween.js

let coords = { x: 0, y: 0 };
let tween = new TWEEN.Tween(coords)
    .to({ x: 100, y: 100 }, 1000)
    .onUpdate(object => {
        console.log(object.x, object.y);
    })
    .start();

requestAnimationFrame(animate);

function animate(time) {
    requestAnimationFrame(animate);
    TWEEN.update(time);
}

Installation

Download the library and include it in your code:

<script src="js/Tween.js"></script>

You can also reference a unpkg-hosted version in your code, thanks to unpkg. For example:

<script src="https://unpkg.com/es6-tween/dist/Tween.min.js"></script>

More advanced users might want to...

Use import

import TWEEN from './src/Tween';

Use npm

npm install es6-tween

Then include the Tween.js module with the standard node.js require:

var TWEEN = require('es6-tween');

And you can use Tween.js as in all other examples--for example:

var t = new TWEEN.Tween( /* etc */ );
t.start();

You will need to use a tool such as browserify to convert code using this style into something that can be run in the browser (browsers don't know about require).

Use bower

bower install es6-tween --save

Then reference the library source:

<script src="bower_components/es6-tween/src/Tween.js"></script>

Features

• Does one thing and one thing only: tween properties
• Doesn't take care of CSS units (e.g. appending px)
• Doesn't interpolate colours
• Easing functions are reusable outside of Tween
• Can also use custom easing functions

Documentation

• User guide
• Tutorial using tween.js with three.js
• Also: libtween, a port of tween.js to C by jsm174

Examples

source source source source source source source source source source source source source

Tests

You need to install npm first--this comes with node.js, so install that one first. Then, cd to tween.js's directory and run:

npm install

if running the tests for the first time, to install additional dependencies for running tests, and then run

npm test

every time you want to run the tests.

If you want to add any feature or change existing features, you must run the tests to make sure you didn't break anything else. If you send a PR to add something new and it doesn't have tests, or the tests don't pass, the PR won't be accepted. See contributing for more information.

People

Maintainers: mikebolt, sole, dalisoft.

All contributors.

Projects using tween.js