component-raf
v1.2.0 animate requestAnimationFrame performance
raf
request animation frame
Installation
$ component install component/raf
Example
Request the animation frame with raf(fn)
, cancel with raf.cancel(id)
.
var x = 0;
var y = 50;
var canvas = document.querySelector('canvas');
var ctx = canvas.getContext('2d');
var raf = require('raf');
function animate() {
raf(animate);
draw();
}
var prev = Date.now();
function draw() {
var curr = Date.now();
var diff = curr - prev;
var p = diff / 16;
ctx.clearRect(0, 0, 900, 300);
ctx.beginPath();
ctx.globalAlpha = .5;
ctx.arc(x, y, 10, 0, Math.PI * 2, false);
ctx.fill();
x += 2;
y += Math.sin(x/20) * 5;
prev = curr;
}
animate();
License
MIT
npm i component-raf
Metadata
- Unknown
- Whatever
- Unknown
- released 9/15/2014
Downloads
Maintainers
tootallnate, tjholowaychuk, rauchg, retrofox, coreh, forbeslindesay, kelonye, mattmueller, yields, anthonyshort, jongleberry, ianstormtaylor, cristiandouce, swatinem, stagas, amasad, juliangruber, shtylman, calvinfo, dominicbarnes, timoxley, jonathanong, queckezz, nami-doc, clintwood, thehydroimpulse, stephenmathieson, trevorgerhardt, timaschew, hughsk,