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@banksean
banksean / perlin-noise-classical.js
Created February 15, 2010 10:00
two Perlin noise generators in javascript. The simplex version is about 10% faster (in Chrome at least, haven't tried other browsers)
// Ported from Stefan Gustavson's java implementation
// http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf
// Read Stefan's excellent paper for details on how this code works.
//
// Sean McCullough banksean@gmail.com
/**
* You can pass in a random number generator object if you like.
* It is assumed to have a random() method.
*/
@TaoK
TaoK / Invoke-ElevatedCommand.ps1
Created January 9, 2012 09:33
Invoke-ElevatedCommand for Administrator-level commands in a common powershell pipeline
Function Invoke-ElevatedCommand {
<#
.DESCRIPTION
Invokes the provided script block in a new elevated (Administrator) powershell process,
while retaining access to the pipeline (pipe in and out). Please note, "Write-Host" output
will be LOST - only the object pipeline and errors are handled. In general, prefer
"Write-Output" over "Write-Host" unless UI output is the only possible use of the information.
Also see Community Extensions "Invoke-Elevated"/"su"
.EXAMPLE
@gre
gre / easing.js
Last active June 27, 2024 15:37
Simple Easing Functions in Javascript - see https://github.com/gre/bezier-easing
/*
* This work is free. You can redistribute it and/or modify it under the
* terms of the Do What The Fuck You Want To Public License, Version 2,
* as published by Sam Hocevar. See the COPYING file for more details.
*/
/*
* Easing Functions - inspired from http://gizma.com/easing/
* only considering the t value for the range [0, 1] => [0, 1]
*/
EasingFunctions = {
@brettz9
brettz9 / html5-dataset.js
Last active April 29, 2023 14:58
Dataset Shim
/**
* Add dataset support to elements
* No globals, no overriding prototype with non-standard methods,
* handles CamelCase properly, attempts to use standard
* Object.defineProperty() (and Function bind()) methods,
* falls back to native implementation when existing
* Inspired by http://code.eligrey.com/html5/dataset/
* (via https://github.com/adalgiso/html5-dataset/blob/master/html5-dataset.js )
* Depends on Function.bind and Object.defineProperty/Object.getOwnPropertyDescriptor (polyfills below)
* All code below is Licensed under the X11/MIT License
@neilmendoza
neilmendoza / gist:4512992
Last active June 9, 2023 14:22
Function to return matrix for rotation about an arbitrary axis in GLSL.
mat4 rotationMatrix(vec3 axis, float angle)
{
axis = normalize(axis);
float s = sin(angle);
float c = cos(angle);
float oc = 1.0 - c;
return mat4(oc * axis.x * axis.x + c, oc * axis.x * axis.y - axis.z * s, oc * axis.z * axis.x + axis.y * s, 0.0,
oc * axis.x * axis.y + axis.z * s, oc * axis.y * axis.y + c, oc * axis.y * axis.z - axis.x * s, 0.0,
oc * axis.z * axis.x - axis.y * s, oc * axis.y * axis.z + axis.x * s, oc * axis.z * axis.z + c, 0.0,
@jeffdgr8
jeffdgr8 / SumByColor.js
Last active December 15, 2018 22:25 — forked from clupasq/subByColor.js
function getBackgroundColor(rangeSpecification) {
var sheet = SpreadsheetApp.getActiveSpreadsheet();
return sheet.getRange(rangeSpecification).getBackground();
}
function getForegroundColor(rangeSpecification) {
var sheet = SpreadsheetApp.getActiveSpreadsheet();
return sheet.getRange(rangeSpecification).getFontColor();
}
@benjaminbojko
benjaminbojko / iOS Background Download Gotchas.md
Last active August 10, 2019 00:38
iOS Background Download Gotchas

iOS Background Download Gotchas

I've been doing some thorough investigations into setting up a solid background download process. Here are some of the gotchas I stumbled upon and wanted to capture:

Background Tasks

  • Only download and upload tasks are allowed to run in the background (no data tasks)
  • Once a download task completes, your app will have to move that task from its temporary location to a permament location (or process the data somehow); The temporary file will be deleted once the URLSession:downloadTask:didFinishDownloadingToURL: delegate method returns.

App Suspension

  • If your app is suspended, it will be re-launched whenever a background task completes
@benjaminbojko
benjaminbojko / color-workflow-tools.md
Last active August 29, 2015 14:05
Color Workflow Tools

Color Workflow Tools

No matter how well organized or spec'ed out a PSD is, there's always that point where you have to manually bring colors from design to code. Here are a few tools that have helped me get a seamless 360° workflow for dealing with colors in OS X.

Alfred 2 Colors Workflow

Amazing workflow by Tyler Eich that allows you to preview, modify and convert colors in a bunch of different color spaces and formats (rgb, hsl, hex, ...). Great if you want to convert those hex values to RGB for CSS.

@tracker1
tracker1 / 01-directory-structure.md
Last active July 25, 2024 14:04
Anatomy of a JavaScript/Node project.

Directory structure for JavaScript/Node Projects

While the following structure is not an absolute requirement or enforced by the tools, it is a recommendation based on what the JavaScript and in particular Node community at large have been following by convention.

Beyond a suggested structure, no tooling recommendations, or sub-module structure is outlined here.

Directories

  • lib/ is intended for code that can run as-is
  • src/ is intended for code that needs to be manipulated before it can be used
@benjaminbojko
benjaminbojko / LinkedTextView.h
Last active March 21, 2024 18:22
UITextView Subclass to avoid Long-Press Delays with embedded Links
//
// LinkedTextView.h
//
// Created by Benjamin Bojko on 10/22/14.
//
// The MIT License (MIT)
//
// Copyright (c) 2014 Benjamin Bojko
//
// Permission is hereby granted, free of charge, to any person obtaining a copy