networked-aframe simple jump component

naf_simple_jump.js

// License Public Domain
// These constants are arbitrary but make sure they do not accidentally collide with other things
const animationAttributeName = 'animation__onkeydown_space';
const animationStartEvent = 'onkeydown_space';
AFRAME.registerComponent('simple-jump', {
    schema: {},
    init: function () {
        var el = this.el;
        // Thank you!!!:    https://stackoverflow.com/a/47019444/8094047
        //                  https://stackoverflow.com/a/51050251/8094047
        el.setAttribute(animationAttributeName, {
            'property': 'object3D.position.y',
            'from': 0,
            'to': 1,
            'startEvents': animationStartEvent,
            'dir': 'alternate',
            'loop': 2,
            'dur': 300,
            'easing': 'easeInOutQuad'
        });
        addEventListener('keydown', function (e) {
            if (e.code === 'Space') {
                el.emit(animationStartEvent, null, false);
            }
        });
    }
});