marrone

Conventions

A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
lengths are in any unit (ex: pixels)
code snippets are in JavaScript

Degrees to radians

angleRad = angleDeg * Math.PI / 180;

Enable SSL in Apache (OSX)

The following will guide you through the process of enabling SSL on a Apache webserver

The instructions have been verified with OSX El Capitan (10.11.2) running Apache 2.4.16
The instructions assume you already have a basic Apache configuration enabled on OSX, if this is not the case feel free to consult Gist: "Enable Apache HTTP server (OSX)"

Apache SSL Configuration

Create a directory within /etc/apache2/ using Terminal.app: sudo mkdir /etc/apache2/ssl
Next, generate two host keys:

Local SSL websites on macOS Sierra

These instructions will guide you through the process of setting up local, trusted websites on your own computer.

These instructions are intended to be used on macOS Sierra, but they have been known to work in El Capitan, Yosemite, Mavericks, and Mountain Lion.

NOTE: You may substitute the edit command for nano, vim, or whatever the editor of your choice is. Personally, I forward the edit command to Sublime Text:

alias edit="/Applications/Sublime\ Text.app/Contents/SharedSupport/bin/subl"

ArchLinux Installation guide

This will use GPT partitions and GRUB2 on a BIOS enabled PC (see Wiki for EFI). The Installation Guide can be found at /root/install.txt.

Prepare USB stick

Get 2012.08.04 image or later from http://www.archlinux.org/download. Following tutorial requires at least 2011.07.15 image.

dd if=/dev/zero of=/dev/sdx bs=1k count=1

	" Make IE Better Compatible "

	<!--[if IE]>
	<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
	<![endif]-->

	======================================================
	IE6 Only
	==================
	_selector {...}

	using UnityEditor;
	using UnityEngine;
	using System;

	public class EdgeCollider2DEditor : EditorWindow {

	[MenuItem("Window/EdgeCollider2D Snap")]
	public static void ShowWindow() {
	EditorWindow.GetWindow (typeof(EdgeCollider2DEditor));
	}

	/**
	* Optimize WooCommerce Scripts
	* Remove WooCommerce Generator tag, styles, and scripts from non WooCommerce pages.
	*/
	add_action( 'wp_enqueue_scripts', 'child_manage_woocommerce_styles', 99 );

	function child_manage_woocommerce_styles() {
	//remove generator meta tag
	remove_action( 'wp_head', array( $GLOBALS['woocommerce'], 'generator' ) );

	//
	// Cocos2d Tiled Sprite
	//
	// Ebyan Alvarez-Buylla
	// http://www.nolithius.com
	//
	// Creates a tiled sprite from the source sprite's texture, tiling it or clipping it to the desired width and height.
	// Usage: [[TiledSprite alloc] initWithSprite:spriteWithTextureOrSubtexture width:640 height:480];
	//
	// Further details and screenshot at:

	var parser = document.createElement('a');
	parser.href = "http://example.com:3000/pathname/?search=test#hash";

	parser.protocol; // => "http:"
	parser.hostname; // => "example.com"
	parser.port; // => "3000"
	parser.pathname; // => "/pathname/"
	parser.search; // => "?search=test"
	parser.hash; // => "#hash"
	parser.host; // => "example.com:3000"

	If you want to clone an svn repository with git-svn but don't want it to push all the existing branches, here's what you should do.

	* Clone with git-svn using the -T parameter to define your trunk path inside the svnrepo, at the same time instructing it to clone only the trunk:

	git svn clone -T trunk http://example.com/PROJECT

	* If instead of cloning trunk you just want to clone a certain branch, do the same thing but change the path given to -T:

	git svn clone -T branches/somefeature http://example.com/PROJECT