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Max Irwin binarymax

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binarymax / TheListServeSolution.js
Created April 29, 2015 18:10
Solution to The ListServe puzzle
((function(f){"use strict";var bdy=window.top.document.body;bdy.innerHTML="";bdy.style.backgroundRepeat="repeat";var c=document.createElement("canvas");var d=c.getContext('2d');var e="";c.width=f;c.height=f;var g=d.createImageData(f,f);var h=[f*f];var i=[];var j=function(z){var a=g.data;for(var x=0;x<f;x++){for(var y=0;y<f;y++){var b=(x+y*f)*4;a[b+0]=(h[b].r*z)%255;a[b+1]=(h[b].g*z)%255;a[b+2]=(h[b].b*z)%255;a[b+3]=255}}d.putImageData(g,0,0);e=c.toDataURL();i.push('url('+e+')')};var k=0,dir=1;var l=function(){bdy.style.backgroundImage=i[k];k+=dir;if(k===f)dir=-1;if(k===0)dir=1};for(var x=0;x<f;x++){for(var y=0;y<f;y++){var m=(x+y*f)*4;h[m]={r:parseInt((x^y)),g:parseInt((x|y)),b:parseInt((x&y))}}}for(var z=0;z<f;z++){j(z)}setInterval(l,200)})(300))
@binarymax
binarymax / GUID.js
Created April 5, 2015 20:05
8 char GUID
//Easy 8 char Base-36 GUID
var GUID = function() {
var char = function(){return Math.floor(Math.random()*36).toString('36')};
return char() + char() + char() + ((new Date())-0).toString('36').substr(3);
};
@binarymax
binarymax / keybase.md
Created March 19, 2015 22:37
keybase.md

Keybase proof

I hereby claim:

  • I am binarymax on github.
  • I am binarymax (https://keybase.io/binarymax) on keybase.
  • I have a public key whose fingerprint is F29D 3138 8A07 0E93 3EB1 0FF6 3231 DE37 8B23 41B5

To claim this, I am signing this object:

@binarymax
binarymax / Bitmap.js
Last active January 22, 2025 13:42
Javascript bitmap data structure
//------------------------------------------
//Compact bitmap datastructure
//Memory efficient array of bool flags
var Bitmap = function(size){
this._cols = 8;
this._shift = 3;
this._rows = (size>>this._shift)+1;
this._buf = new ArrayBuffer(this._rows);
this._bin = new Uint8Array(this._buf);
};
@binarymax
binarymax / CraftyChess.txt
Last active November 29, 2015 22:00
Compile Crafty Chess on Mac OSX
Compiling crafty chess on MacOS, you get the following error:
-------------------------------------------------------------
~/apps/crafty/crafty-23.4:$ make darwin
/Applications/Xcode.app/Contents/Developer/usr/bin/make target=FreeBSD \
CC=gcc CXX=g++ \
CFLAGS='-Wall -pipe -O3' \
CXFLAGS='-Wall -pipe -O3' \
LDFLAGS= \
LIBS='-lstdc++' \
opt='' \
@binarymax
binarymax / PointsToBuffer.js
Created August 10, 2014 18:57
/*
2D ARRAY
0 1 2 3 4 (x)
0 [ ][ ][ ][ ][ ]
1 [ ][ ][#][ ][ ]
2 [ ][ ][ ][ ][ ]
3 [ ][ ][ ][ ][ ]
4 [ ][ ][ ][ ][ ]
@binarymax
binarymax / elosim.js
Last active December 24, 2015 19:59
Elo rating simulation
/*********************************
*
* Elo Rating Simulation
* Copyright (c) 2013, Max Irwin
* MIT License
*
*********************************/
(function(){
var players = [];
@binarymax
binarymax / parseCIDRRange.js
Last active July 30, 2021 11:03
JavaScript function to parse a CIDR Range string into beginning and ending IPv4 Addresses
//MIT License
//Copyright (c) 2013, Max Irwin
//Parses a CIDR Range into beginning and ending IPv4 Addresses
//For example: '10.0.0.0/24'
//Returns ['10.0.0.0', '10.0.0.255']
var parseCIDR = function(CIDR) {
//Beginning IP address
var beg = CIDR.substr(CIDR,CIDR.indexOf('/'));
@binarymax
binarymax / gist:5039967
Created February 26, 2013 16:41
Workaround for toDataURL >2MB
//From https://code.google.com/p/chromium/issues/detail?id=69227#c37
//take apart data URL
var parts = canvas.toDataURL().match(/data:([^;]*)(;base64)?,([0-9A-Za-z+/]+)/);
//assume base64 encoding
var binStr = atob(parts[3]);
//convert to binary in ArrayBuffer
var buf = new ArrayBuffer(binStr.length);
@binarymax
binarymax / canvasfloodfill.js
Created November 14, 2012 12:36
Javascript Canvas FloodFill functions
//MIT License
//Author: Max Irwin, 2011
//Floodfill functions
function floodfill(x,y,fillcolor,ctx,width,height,tolerance) {
var img = ctx.getImageData(0,0,width,height);
var data = img.data;
var length = data.length;
var Q = [];
var i = (x+y*width)*4;