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README.md

pixi-animationloop

AnimationLoop is a plugin for Pixi.js v3.0.8 or higher to manage the animation frame, doing the basic time operations, like calculate delta, total time, start/stop loop, and more.

Installation

npm install pixi-animationloop

Usage

Browserify - Webpack

If you use Browserify or Webpack you can use pixi-animationloop like this:

var PIXI = require('pixi.js');
var AnimationLoop = require('pixi-animationloop'); //AnimationLoop is added automatically to the PIXI namespace

//create PIXI renderer
var renderer = new PIXI.autoDetectRenderer(800,600);
document.body.appendChild(renderer.view);

var animationLoop = new PIXI.AnimationLoop(renderer);
animationLoop.start();

Prebuilt files

var renderer = new PIXI.autoDetectRenderer(800,600);
document.body.appendChild(renderer.view);

var animationLoop = new PIXI.AnimationLoop(renderer);
animationLoop.start();

Events

AnimationLoop extends from PIXI.utils.EventEmitter, and emit four events: start, stop, prerender, postrender and visibilitychange. More info: Node.js Events

animationLoop.on('start', function(){
  console.log('onStart');
});

animationLoop.on('stop', function(){
  console.log('onStop');
});

//Before the renderer.render(stage) function
animationLoop.on('prerender', function(){
  console.log('preRender', this.delta);
});

//After the renderer.render(stage) function
animationLoop.on('postrender', function(){
  console.log('postRender', this.delta);
});

//when the visibility change, for example, when the user move on to other browser tab.
animationLoop.on('visibilitychange', function(isHide){
  //the param isHide is the state of the tab
  console.log('visibilityChange', isHide);
});

API

constructor( renderer [, stage])

The constructor

.renderer

Pixi.js renderer

.stage

Pixi.js container used as stage

.time

Total game time in seconds (stop the animation loop stops the time)

.realTime

Real time in seconds, since the first start

.delta

Delta time in seconds

.deltaMS

Delta time in milliseconds

.speed

Set the time speed (like 0.5, 1.5, 2, ...)

.maxFrame

Delta time can't be higher than maxFrame (in seconds)

.raf

Request animation frame ID

.isRunning

Used internally to know the state of the loop

.stopOnVisibilityChange

Stop the animation loop when the user move on to the other tab, when the user comes back the game will be resumed. (false by defult)

.start()

Start or resume the animation loop, emit the 'start' event

.stop()

Stops the animation loop, emit the 'stop' event