mnml/client/src/components/anims/sleep.jsx

const preact = require('preact');
const { Component } = require('preact');
const anime = require('animejs').default;

const { TIMES, COLOURS } = require('../../constants');
const { randomPoints } = require('../../utils');

// logarithmic spiral lifted from
// https://upload.wikimedia.org/wikipedia/commons/5/5b/Logarithmic_spiral_(1).svg

function projectile(x, y, radius, colour) {
    return (
        <circle
            cx={x}
            cy={y}
            r={radius}
            fill={colour}
            stroke="none"
            id="charges"
            opacity="0"
        />
    );
}

class Sleep extends Component {
    constructor() {
        super();
        this.animations = [];
        const points = randomPoints(30, 30, { x: -250, y: -150, width: 600, height: 600 });
        this.charges = points.map(coord => projectile(coord[0], coord[1], 15, COLOURS.GREEN));
    }

    render() {
        const path = 'M0,100 C100,100 100,100 200,100';

        return (
            <svg
                class='skill-animation green'
                version="1.1"
                id="sleep"
                xmlns="http://www.w3.org/2000/svg"
                viewBox="-291 -191 582 582">
                <defs>
                    <filter id="triageFilter">
                        <feGaussianBlur stdDeviation="3"/>
                        <feColorMatrix mode="matrix" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 19 -9" result="cutoff"/>
                        <feComposite operator="atop" in="SourceGraphic" in2="cutoff"/>
                    </filter>
                </defs>
                <g id="stun">
                    <path
                        d="M3.6 0c.23-2.93-1.9-4.9-4.8-4.77S-6.37-1.87-6.33 1.3s2.92 7.1 8.03 7 9.4-4.78 9.2-10.5-5-11.95-13.4-12.1S-18.77-6.88-18.85 3.3-10.05 24.97 4.8 24.74 32.78 11.38 32.5-6.5 16.15-42.7-7.8-42.7-55.7-22.02-56.2 9.7s27.3 65 72 64 82.32-42.78 81-92.3S55.41-126.63-23-127.4-168.4-56.97-167.6 30.3s65.85 166.15 161.27 186S246.55 187.18 284.83 0"
                    />
                    <path
                        d="M3.6 0c.23-2.93-1.9-4.9-4.8-4.77S-6.37-1.87-6.33 1.3s2.92 7.1 8.03 7 9.4-4.78 9.2-10.5-5-11.95-13.4-12.1S-18.77-6.88-18.85 3.3-10.05 24.97 4.8 24.74 32.78 11.38 32.5-6.5 16.15-42.7-7.8-42.7-55.7-22.02-56.2 9.7s27.3 65 72 64 82.32-42.78 81-92.3S55.41-126.63-23-127.4-168.4-56.97-167.6 30.3s65.85 166.15 161.27 186S246.55 187.18 284.83 0"
                        transform="rotate(120)"
                        style="opacity: 0.75"
                    />
                    <path
                        d="M3.6 0c.23-2.93-1.9-4.9-4.8-4.77S-6.37-1.87-6.33 1.3s2.92 7.1 8.03 7 9.4-4.78 9.2-10.5-5-11.95-13.4-12.1S-18.77-6.88-18.85 3.3-10.05 24.97 4.8 24.74 32.78 11.38 32.5-6.5 16.15-42.7-7.8-42.7-55.7-22.02-56.2 9.7s27.3 65 72 64 82.32-42.78 81-92.3S55.41-126.63-23-127.4-168.4-56.97-167.6 30.3s65.85 166.15 161.27 186S246.55 187.18 284.83 0"
                        transform="rotate(240)"
                        style="opacity: 0.5"
                    />
                </g>
                <g id="heal" filter="url(#triageFilter)">
                    {this.charges}
                </g>
            </svg>
        );
    }

    componentDidMount() {
        anime.set('#sleep', {
            translateY: 75,
        });

        this.animations.push(anime({
            targets: ['#sleep'],
            opacity: [
                { value: 1, delay: TIMES.TARGET_DELAY_MS, duration: TIMES.TARGET_DURATION_MS * 0.2 },
            ],
            easing: 'easeInOutSine',
        }));

        this.animations.push(anime({
            targets: ['#sleep'],
            rotate: 180,
            easing: 'linear',
            loop: true,
            delay: TIMES.TARGET_DELAY_MS,
            duration: TIMES.TARGET_DURATION_MS + TIMES.POST_SKILL_DURATION_MS,
        }));

        this.animations.push(anime({
            targets: ['#stun'],
            opacity: [
                { value: 0, delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.8, duration: TIMES.TARGET_DURATION_MS * 0.2 },
            ],
            easing: 'easeInOutSine',
        }));

/*        this.animations.push(anime({
            targets: ['#heal'],
            opacity: [
                { value: 1, delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS * 0.7, duration: TIMES.TARGET_DURATION_MS * 0.3 },
                { value: 0, delay: TIMES.POST_SKILL_DURATION_MS * 0.6, duration: TIMES.POST_SKILL_DURATION_MS * 0.4 },
            ],
            easing: 'easeInOutSine',
        }));
*/

        this.animations.push(anime({
            targets: ['#charges'],
            opacity: 1,
            delay: anime.stagger(TIMES.TARGET_DURATION_MS * 0.015, { start: TIMES.TARGET_DELAY_MS }),
            easing: 'easeInOutSine',
        }));


        this.animations.push(anime({
            targets: ['#charges'],
            cx: 0,
            cy: 0,
            delay: TIMES.TARGET_DELAY_MS + TIMES.TARGET_DURATION_MS + TIMES.POST_SKILL_DURATION_MS * 0.75,
            duration: TIMES.POST_SKILL_DURATION_MS * 0.25,
            easing: 'easeInOutSine',
        }));

    }

    // 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 = Sleep;