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psema4 / readme.md
Created July 23, 2016 18:17 — forked from xem/readme.md
Maths & trigonometry cheat sheet for 2D & 3D games

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;

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psema4 / example.md
Created July 7, 2016 00:35 — forked from ericclemmons/example.md
HTML5 <details> in GitHub

Using <details> in GitHub

Suppose you're opening an issue and there's a lot noisey logs that may be useful.

Rather than wrecking readability, wrap it in a <details> tag!

<details>
 <summary>Summary Goes Here</summary>
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psema4 / ep_app.js
Created June 16, 2016 16:13 — forked from focusaurus/ep_app.js
Example of how a main express app can mount sub-applications on a mount point with app.use('/mount-point', subapp); If you GET /, you'll see the main_app's '/' response. If you GET /ep_app, you'll see the ep_app's '/' response.
var express = require("express");
var app = express();
app.get('/', function (req, res) {
res.send("This is the '/' route in ep_app");
});
module.exports = app;
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psema4 / slim-container-examples.php
Created May 12, 2016 03:07 — forked from akrabat/slim-container-examples.php
Example uses of Slim 3's container
<?php
// All file paths relative to root
chdir(dirname(__DIR__));
require "vendor/autoload.php";
$settings = ['foo' => 'FOO', 'bar' => 'BAR'];
$app = new \Slim\App($settings);
// Set some things into the container
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psema4 / mersenne-twister.js
Created November 21, 2015 03:23 — forked from banksean/mersenne-twister.js
a Mersenne Twister implementation in javascript. Makes up for Math.random() not letting you specify a seed value.
/*
I've wrapped Makoto Matsumoto and Takuji Nishimura's code in a namespace
so it's better encapsulated. Now you can have multiple random number generators
and they won't stomp all over eachother's state.
If you want to use this as a substitute for Math.random(), use the random()
method like so:
var m = new MersenneTwister();
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psema4 / git_branch_parent.sh
Last active May 30, 2016 13:49 — forked from intel352/git_branch_parent.sh
Determine "parent" of the active git branch (Ubuntu)
#!/usr/bin/env bash
# via http://stackoverflow.com/a/17843908/773209
#
# Ubuntu variant
#
# if ack-grep isn't found:
# $ sudo apt-get install ack-grep
branch=`git rev-parse --abbrev-ref HEAD`
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psema4 / git-log2json.sh
Last active August 29, 2015 14:19 — forked from textarcana/git-log2json.sh
#!/usr/bin/env bash
# Use this one-liner to produce a JSON literal from the Git log:
git log \
--pretty=format:'{%n "commit": "%H",%n "author": "%an <%ae>",%n "date": "%ad",%n "message": "%f"%n},' \
$@ | \
perl -pe 'BEGIN{print "["}; END{print "]\n"}' | \
perl -pe 's/},]/}]/'
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psema4 / Grunt-Cordova-CLI.md
Last active August 29, 2015 14:16 — forked from jonathandixon/Grunt-Cordova-CLI.md

Grunt and Cordova 3

The advantages of using Grunt with Cordova:

  1. It simplifies working with the cordova cli.
  2. It provides a mechanism to copy platform customization to the platforms directory without having to commit the generated plugins and platforms directories to version control.
  3. It provides a way to watch resources and automatically run cordova commands.

Stack Overflow: .gitignore for PhoneGap/Cordova 3.0 projects - what should I commit?

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psema4 / gist:e5e53f63c4dd94ad57d9
Created August 26, 2014 15:19 — forked from modeswitch/gist:114c9bd55d800df242a2

Before you begin

Make sure you have adb installed and that it works. Test this by connecting your phone and running adb devices. In order to proceed past the build stage, your device must be rooted. The device I used is running Cyanogenmod with root enabled for both apps and adb.

Build

Fetch the Android NDK

You'll need to get the Android NDK. I used r8e, which you can get from here: http://dl.google.com/android/ndk/android-ndk-r8e-linux-x86.tar.bz2. Make sure you get the x86 version, as the x86_64 version will not help you. Let's call the path where you unpack this NDK_PATH.

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psema4 / jQuery Live MobileSafari Click Bug
Created October 28, 2011 22:01 — forked from max-mapper/jQuery Live MobileSafari Click Bug
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>
MobileSafari Live Click Bug
</title>
<script src='http://code.jquery.com/jquery-git.js' type='text/javascript'></script>
<script src='http://media.lib.byu.edu/js/jquery/plugins/jquery.livequery-1.0.3.js' type='text/javascript'></script>
</head>
<body style='font-family: Helvetica;'>