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/**
* Bresenham Curve Rasterizing Algorithms
* @author Zingl Alois
* @date 17.12.2014
* @version 1.3
* @url http://members.chello.at/easyfilter/bresenham.html
*/
function assert(a) {
if (!a) console.log("Assertion failed in bresenham.js "+a);
@allenk
allenk / stb.c
Created September 27, 2017 21:50 — forked from urraka/stb.c
#define STB_IMAGE_IMPLEMENTATION
#define STB_IMAGE_WRITE_IMPLEMENTATION
#define STBI_ONLY_PNG
#define STBI_ONLY_JPEG
#define STBI_ONLY_BMP
#define STBI_ONLY_GIF
#include "stb_image.h"
#include "stb_image_write.h"
@allenk
allenk / gist:92fd31bb63172fff57b839d4d9b45600
Created September 16, 2017 21:12 — forked from cdown/gist:1163649
Bash urlencode and urldecode
urlencode() {
# urlencode <string>
old_lc_collate=$LC_COLLATE
LC_COLLATE=C
local length="${#1}"
for (( i = 0; i < length; i++ )); do
local c="${1:i:1}"
case $c in
[a-zA-Z0-9.~_-]) printf "$c" ;;
@allenk
allenk / slackpost
Created September 16, 2017 16:59 — forked from dopiaza/slackpost
Post a message to a Slack channel
#!/bin/bash
# Usage: slackpost <token> <channel> <message>
# Enter the name of your slack host here - the thing that appears in your URL:
# https://slackhost.slack.com/
slackhost=PUT_YOUR_HOST_HERE
token=$1
@allenk
allenk / Free O'Reilly Books.md
Created August 17, 2017 21:35 — forked from augbog/Free O'Reilly Books.md
Free O'Reilly Books

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

  1. Take the download.sh file and put it into a directory where you want the files to be saved.
  2. cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
  3. Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.
@allenk
allenk / finderrors.ps1
Created July 25, 2017 20:18 — forked from kitmenke/finderrors.ps1
Working in progress: powershell script to automatically fix DCOM errors which show up in the event log
# Get-EvengLog doesn't quite work I guess:
# https://stackoverflow.com/questions/31396903/get-eventlog-valid-message-missing-for-some-event-log-sources#
# Get-EventLog Application -EntryType Error -Source "DistributedCOM"
# The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID
#$logs = Get-EventLog -LogName "System" -EntryType Error -Source "DCOM" -Newest 1 -Message "The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID*"
# 2 is error
# 3 is warning
$EVT_MSG = "The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID"
# Search for System event log ERROR entries starting with the specified EVT_MSG
$logEntry = Get-WinEvent -FilterHashTable @{LogName='System'; Level=2} | Where-Object { $_.Message -like "$EVT_MSG*" } | Select-Object -First 1
@allenk
allenk / 10-Bit H.264
Created June 5, 2017 03:19
10-Bit H.264 explanation
10-Bit H.264
For all those who haven’t heard of it already, here’s a quick rundown about the
newest trend in making our encodes unplayable on even more systems: So-called
high-bit-depth H.264. So, why another format, and what makes this stuff
different from what you know already?
First off: What is bit depth?
In short, bit depth is the level of precision that’s available for storing color
information. The encodes you’re used to have a precision of 8 bits (256 levels)
@allenk
allenk / gist:af1562f28dc86baff796ff84cdc7924c
Created May 10, 2017 11:18 — forked from asabaylus/gist:3071099
Github Markdown Heading Anchors

Anchors in Markdown

To create an anchor to a heading in github flavored markdown. Add - characters between each word in the heading and wrap the value in parens (#some-markdown-heading) so your link should look like so:

[create an anchor](#anchors-in-markdown)

@allenk
allenk / README-Template.md
Created March 22, 2017 14:03 — forked from PurpleBooth/README-Template.md
A template to make good README.md

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites