KrofDrakula

const SPECIAL_CHARS = /[-\/\\^$*+?.()|[\]{}]/g;
const ESCAPED_CHAR = "\\$&";

const escapeRegExp = (s: string) => s.replace(SPECIAL_CHARS, ESCAPED_CHAR);

const regexp = (flags?: string) =>
  (strings: string[], ...values: string[]) =>
    new RegExp(strings[0] + values.map((value, index) => escapeRegExp(value) + strings[index + 1]).join(""), flags);

KrofDrakula

const isPrimitive = (obj) => {
  if (typeof obj === 'number' || typeof obj === 'boolean' || typeof obj === 'string') return true;
  if (Number.isNaN(obj) || obj === null || obj === undefined) return true;
  return false;
}

const isIterable = (obj) => !isPrimitive(obj);

const clone = (obj) => {
  if (isIterable(obj)) {

KrofDrakula

import { h, Component } from 'preact';

const withState = Wrapped => class extends Component {
  constructor(props) {
    super(props);
    this.state = props;
  }

  componentWillReceiveProps(nextProps) {
    this.setState(nextProps);

KrofDrakula

import { options } from 'preact';
import cx from 'classnames';

let old = options.vnode;
options.vnode = vnode => {
  let isElement = typeof vnode.nodeName==='string',
    props = vnode.attributes || {},
    key = props.class ? 'class' : 'className';
  if (isElement && props[key] && typeof props[key]==='object') {
    props[key] = cx(props[key]);

KrofDrakula

class Vec2d {
  constructor(x, y) { this.reset(x, y); }
  get mag() { return Math.sqrt(this.dot(this)); }
  clone() { return new Vec2d(this.x, this.y); }
  reset(x, y) { this.x = x; this.y = y; return this; }
  neg() { return this.scale(-1); }
  norm() {
    let m = this.mag;
    if (m > 0) return this.scale(1 / m);
    return this;

KrofDrakula

scrolling: yes
height: 800

KrofDrakula

// Use `<% ... %>` to execute blocks of JavaScript, `<%= ... %>` to write
// out the result of the embedded expression.
function tmpl(str, params) {
    if (!str) return '';
    
    function generateOutput(str) {
        return "  p.push('" + str.replace(/'/g, "\\'").split(/\r?\n/g).join("\\n');\n  p.push('") + "');\n";
    }

    var fn;

KrofDrakula

Keybase proof

I hereby claim:

• I am krofdrakula on github.
• I am krofdrakula (https://keybase.io/krofdrakula) on keybase.
• I have a public key whose fingerprint is A5B2 D08D 4333 E167 DB37 A7C0 6444 7954 106D 1D39

To claim this, I am signing this object:

KrofDrakula

(function(global) {

    function extend(obj) {
        for (var i = 1; i < arguments.length; i++) {
            var source = arguments[i];
            for (var name in source) if (source.hasOwnProperty(name))
                obj[name] = source[name];
        }
        return obj;
    }

KrofDrakula

(function(global) {
    
    function Dither(container, width, height) {
        this.container = container;
        this.width     = width;
        this.height    = height;
        this.canvas    = null;
        this.image     = null;

        this.draw               = this.draw.bind(this);