Method constructor

src/ui/MuteButton.js:11–35

({
        sound,
        callback
    })

export class MuteButton extends Interface {
    constructor({
        sound,
        callback
    }) {
        super('.button');

        this.sound = sound;
        this.callback = callback;

        this.width = 24;
        this.height = 16;
        this.animatedIn = false;
        this.needsUpdate = false;

        this.props = {
            progress: 0,
            yMultiplier: this.sound ? 1 : 0
        };

        this.init();
        this.initCanvas();
        this.setSound(this.sound);

        this.addListeners();
    }

    init() {
        this.css({