2019-07-02 16:46:02 +10:00

77 lines
2.4 KiB
JavaScript

const preact = require('preact');
const { Component } = require('preact');
const anime = require('animejs').default;
const { TIMES } = require('../../constants');
class Amplify extends Component {
constructor() {
super();
this.animations = [];
}
render() {
const path = 'M0,100 C100,100 100,100 200,100';
return (
<svg
class='skill-animation'
version="1.1"
id="amplify"
xmlns="http://www.w3.org/2000/svg"
viewBox="0 0 200 200">
<filter id="amplifyFilter">
<feTurbulence type="turbulence" baseFrequency="0.4" numOctaves="2" result="turbulence"></feTurbulence>
<feDisplacementMap in2="turbulence" in="SourceGraphic" scale="2" xChannelSelector="R" yChannelSelector="G"></feDisplacementMap>
</filter>
<path filter='url("#amplifyFilter")' d={path} />
</svg>
);
}
componentDidMount() {
const altPath = 'M0,100 C100,400 100,-200 200,100';
this.animations.push(anime({
targets: ['#amplify'],
opacity: [
{ value: 1, delay: TIMES.TARGET_DELAY_MS, duration: TIMES.TARGET_DURATION_MS * 0.2 },
{ value: 0, delay: TIMES.TARGET_DURATION_MS * 0.6, duration: TIMES.TARGET_DURATION_MS * 0.2 },
],
easing: 'easeInOutSine',
}));
this.animations.push(anime({
targets: ['#amplify path'],
d: [{ value: altPath }],
stroke: ['#3498db', '#a52a2a'],
easing: 'easeInOutSine',
delay: TIMES.TARGET_DELAY_MS,
duration: TIMES.TARGET_DURATION_MS,
}));
this.animations.push(anime({
targets: ['#amplifyFilter feTurbulence', '#amplifyFilter feDisplacementMap'],
baseFrequency: 0.15,
scale: 4,
easing: 'easeInOutExpo',
delay: TIMES.TARGET_DELAY_MS,
duration: TIMES.TARGET_DURATION_MS,
}));
}
// this is necessary because
// skipping / timing / unmounting race conditions
// can cause the animations to cut short, this will ensure the values are reset
// because preact will recycle all these components
componentWillUnmount() {
for (let i = this.animations.length - 1; i >= 0; i--) {
this.animations[i].reset();
}
}
}
module.exports = Amplify;