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 |