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@banksean
banksean / mersenne-twister.js
Created February 10, 2010 16:24
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();
@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.
*/
@bartoszmajsak
bartoszmajsak / prepare-commit-msg.sh
Last active March 20, 2024 08:12
How to automatically prepend git commit with a branch name
#!/bin/bash
# This way you can customize which branches should be skipped when
# prepending commit message.
if [ -z "$BRANCHES_TO_SKIP" ]; then
BRANCHES_TO_SKIP=(master develop test)
fi
BRANCH_NAME=$(git symbolic-ref --short HEAD)
BRANCH_NAME="${BRANCH_NAME##*/}"
@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 = {
@conorbuck
conorbuck / angle-between-points.js
Created May 5, 2012 22:51
JavaScript: Find the angle between two points
var p1 = {
x: 20,
y: 20
};
var p2 = {
x: 40,
y: 40
};
@Warry
Warry / Article.md
Created December 11, 2012 00:11
How to make faster scroll effects?

How to make faster scroll effects?

  • Avoid too many reflows (the browser to recalculate everything)
  • Use advanced CSS3 for graphic card rendering
  • Precalculate sizes and positions

Beware of reflows

The reflow appens as many times as there are frames per seconds. It recalculate all positions that change in order to diplay them. Basically, when you scroll you execute a function where you move things between two reflows. But there are functions that triggers reflows such as jQuery offset, scroll... So there are two things to take care about when you dynamically change objects in javascript to avoid too many reflows:

@willurd
willurd / web-servers.md
Last active July 22, 2024 15:25
Big list of http static server one-liners

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000
@don1138
don1138 / font-stacks.css
Last active May 14, 2024 13:16
CSS Modern Font Stacks
/* Modern Font Stacks */
/* System */
font-family: system, -apple-system, ".SFNSText-Regular", "San Francisco", "Roboto", "Segoe UI", "Helvetica Neue", "Lucida Grande", sans-serif;
/* System (Bootstrap 5.2.0) */
font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
/* Times New Roman-based serif */
font-family: Cambria, "Hoefler Text", Utopia, "Liberation Serif", "Nimbus Roman No9 L Regular", Times, "Times New Roman", serif;
@sanmai
sanmai / UIImage+Scale.h
Last active January 20, 2021 23:23
If you just want an UIImage smaller and don't care about exact sizing, this category is for you. It extends the UIImage class to support scaling. Methods should be pretty self-explanatory.
// Created by Alexey Kopytko in 2013.
// Public domain with no warranty whatsoever.
// Extends the UIImage class to support scaling
@interface UIImage (Scale)
- (UIImage *)imageScaledToQuarter;
- (UIImage *)imageScaledToHalf;
- (UIImage *)imageScaledToScale:(CGFloat)scale;
- (UIImage *)imageScaledToScale:(CGFloat)scale
@totherik
totherik / gist:3a4432f26eea1224ceeb
Last active June 16, 2024 13:42
v8 --allow-natives-syntax RuntimeFunctions
Per https://code.google.com/p/v8/codesearch#v8/trunk/src/runtime.cc
%CreateSymbol
%CreatePrivateSymbol
%CreateGlobalPrivateSymbol
%NewSymbolWrapper
%SymbolDescription
%SymbolRegistry
%SymbolIsPrivate