morse-keyframes

morse-keyframes

npm	v0.3.1
size	420b minzipped
dependencies	zero
license	MIT

turn morse code into css keyframes

morse-keyframes is a tiny library created to help communicate messages via morse code using css animations.

usage

script include

<script src="https://unpkg.com/morse-keyframes"></script>

const CODE_STRING = '... ___ ...';
const PERCENT_OFFSET = 20;
const DASH_CHAR = '_';
const DOT_CHAR = '.';
const SPACE_CHAR = ' ';

const m = morseKeyframes(
	CODE_STRING,
	PERCENT_OFFSET,
	0,
	1,
	DASH_CHAR,
	DOT_CHAR,
	SPACE_CHAR
);

const style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = `@keyframes morse {${m}}`;
document.getElementsByTagName('head')[0].appendChild(style);

.selector {
	animation: 4s linear infinite morse;
}

import

npm install morse-keyframes

import React from 'react';
import styled, { keyframes } from 'styled-components';
import morse from 'morse-keyframes';

const Secret = styled.div`
	position: fixed;
	bottom: 0;
	left: calc(50% - 25px);
	height: 50px;
	width: 50px;
	background: #00f;
	border-radius: 4px;
	animation: 5s linear infinite ${keyframes`${morse(
		'gggbrrrbggg',
		20,
		'{transform: translate3d(0, 40%, 0) scale3d(1.5, 1, 1); opacity: 0;}',
		'{transform: translate3d(0, 0, 0) scale3d(1, 1, 1); opacity: 1;}'
	)}`};
`;

const app = document.createElement('div');
document.body.appendChild(app);
ReactDOM.render(React.createElement(Secret), app);

api

some of the api may be a bit obtuse, but this is to help your easter eggs/puzzles stay hidden!

parameters

parameter	type	default	description
morse	string	''	morse coded message
percentOffset	number	20	css animation percent delay before starting the message
offValue	number/string	0	the opacity or css when "off" (opacity when number, css when string)
onValue	number/string	1	the opacity or css when "on" (opacity when number, css when string)
dash	string	'r'	character to match for morse dash
dot	string	'g'	character to match for morse dot
space	string	'b'	character to match for morse space