BlackCetha BlackCetha

## gist:ed4784f95b8ec4061392
$ sudo irb
irb(main):002:0> require 'fileutils'
=> true
irb(main):003:0> FileUtils.rm_rf("#{nil}/")

## Eyestrain.md

      
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                maddo
                / Eyestrain.md
            
            
              Created
              February 2, 2015 15:04
            
          
    Eyestrain Buster

This is a great exercise for relieving tired, strained eyes. The exercise may feel awkward at first, but with practice you will be able to relieve your eyestrain in just a few short minutes.

Gently slide the undersides of your thumbs across the upper rim of your eye sockets toward the temples.
Next massage the lower rim of your eye sockets with your index fingers working from the corner of your eyes toward the temples.

Repeat twice.


Now gently move your eyes from side to side, first to the right
and then to the left, repeat three times.
Slowly move your eyes up toward the ceiling then down toward the floor, repeat three times.
Slowly and gently move your eyes in complete circles, three times clockwise and counter clockwise.
Relax by closing your eyes so that the eyelids barely touch together.


## introrx.md

      
              7 files
            
          
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                staltz
                / introrx.md
            
            
              Last active
              June 29, 2024 15:58
            
              
                The introduction to Reactive Programming you've been missing
              
          
    The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.


## beguidcalc.md

      
              8 files
            
          
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              19 stars
            
          
                Fank
                / beguidcalc.md
            
            
              Last active
              December 23, 2023 12:26
            
              
                ArmA 3 / DayZ-Standalone - BattlEye GUID calculation
              
          
    md5("BE" (2 bytes) + 64-bit SteamID (8 bytes))


## css_resources.md

      
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                jookyboi
                / css_resources.md
            
            
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              April 26, 2024 13:06
            
              
                CSS libraries and guides to bring some order to the chaos.
              
          
    Libraries


960 Grid System - An effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem.
Compass - Open source CSS Authoring Framework.
Bootstrap - Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
Font Awesome - The iconic font designed for Bootstrap.
Zurb Foundation - Framework for writing responsive web sites.
SASS - CSS extension language which allows variables, mixins and rules nesting.
Skeleton - Boilerplate for responsive, mobile-friendly development.

Guides


## steamid_conversion.php
<?php

function convert_steamid_64bit_to_32bit($id)
{
  $result = substr($id, 3) - 61197960265728;
  return (string) $result;
}

function convert_steamid_32bit_to_64bit($id)
{
	$ sudo irb
	irb(main):002:0> require 'fileutils'
	=> true
	irb(main):003:0> FileUtils.rm_rf("#{nil}/")
	<?php

	function convert_steamid_64bit_to_32bit($id)
	{
	$result = substr($id, 3) - 61197960265728;
	return (string) $result;
	}

	function convert_steamid_32bit_to_64bit($id)
	{