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@Deco
Deco / deepcopy.lua
Created October 31, 2012 05:38
Lua Non-recursive Deep-copy
--[[ deepcopy.lua
Deep-copy function for Lua - v0.2
==============================
- Does not overflow the stack.
- Maintains cyclic-references
- Copies metatables
- Maintains common upvalues between copied functions (for Lua 5.2 only)
TODO
@grazer
grazer / red circle shader
Last active March 8, 2023 23:41
red circle GLSL fragment shader
void main(void) {
// the center of the texture
vec2 center = vec2(iResolution.x/2.0,iResolution.y/2.0);
// current pixel location
vec2 loc = gl_FragCoord.xy;
// how far we are from the center
float radius=length(loc-center);
@jokertarot
jokertarot / clfontpng.cc
Created November 21, 2013 15:43
How to render color emoji font with FreeType 2.5
// = Requirements: freetype 2.5, libpng, libicu, libz, libzip2
// = How to compile:
// % export CXXFLAGS=`pkg-config --cflags freetype2 libpng`
// % export LDFLAGS=`pkg-config --libs freetype2 libpng`
// % clang++ -o clfontpng -static $(CXXFLAGS) clfontpng.cc $(LDFLAGS) \
// -licuuc -lz -lbz2
#include <cassert>
#include <cctype>
#include <iostream>
#include <memory>
@tylerneylon
tylerneylon / copy.lua
Last active January 9, 2026 12:31
How to deep copy Lua values.
-- copy.lua
--
-- Lua functions of varying complexity to deep copy tables.
--
-- 1. The Problem.
--
-- Here's an example to see why deep copies are useful. Let's
-- say function f receives a table parameter t, and it wants to
@CallumDev
CallumDev / fontconfig.c
Created January 21, 2015 14:08
FontConfig sample in C
//compiled gcc fonttest.c -o fonttest -lfontconfig
//Sample output: /usr/share/fonts/steam-fonts/arial.ttf
#include <stdio.h>
#include <stdlib.h>
#include <fontconfig/fontconfig.h>
int main()
{
FcConfig* config = FcInitLoadConfigAndFonts();
//make pattern from font name
FcPattern* pat = FcNameParse((const FcChar8*)"Arial");
@brianmacarthur
brianmacarthur / flash-app.js
Last active October 6, 2025 05:44
Flash messaging in Express 4: express-flash vs. custom middleware in ejs, handlebars, or jade
var express = require('express');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var flash = require('express-flash');
var handlebars = require('express-handlebars')
var app = express();
var sessionStore = new session.MemoryStore;
// View Engines
@benjamingorman
benjamingorman / gist:840f42cca525ab2cd6bf
Last active March 8, 2023 07:32
Shader - Circle and Rectangle functions
// returns 1.0 if inside circle
float disk(vec2 r, vec2 center, float radius) {
return 1.0 - smoothstep( radius-0.005, radius+0.005, length(r-center));
}
// returns 1.0 if inside the disk
float rectangle(vec2 r, vec2 bottomLeft, vec2 topRight) {
float ret;
float d = 0.005;
ret = smoothstep(bottomLeft.x-d, bottomLeft.x+d, r.x);
ret *= smoothstep(bottomLeft.y-d, bottomLeft.y+d, r.y);
@socantre
socantre / CMakeLists.txt
Last active May 6, 2025 17:34
Example of using add_custom_command and add_custom_target together in CMake to handle custom build steps with minimal rebuilding: This example untars library headers for an INTERFACE library target
set(LIBFOO_TAR_HEADERS
"${CMAKE_CURRENT_BINARY_DIR}/include/foo/foo.h"
"${CMAKE_CURRENT_BINARY_DIR}/include/foo/foo_utils.h"
)
add_custom_command(OUTPUT ${LIBFOO_TAR_HEADERS}
COMMAND ${CMAKE_COMMAND} -E tar xzf "${CMAKE_CURRENT_SOURCE_DIR}/libfoo/foo.tar"
COMMAND ${CMAKE_COMMAND} -E touch ${LIBFOO_TAR_HEADERS}
WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/include/foo"
DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/libfoo/foo.tar"
@ChunMinChang
ChunMinChang / License
Last active September 25, 2025 16:34
Python: Remove C/C++ style comments #parser
Copyright 2025 Chun-Min Chang
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OT
@maxim
maxim / gh-dl-release
Last active December 31, 2025 12:22
Download assets from private Github releases
#!/usr/bin/env bash
#
# gh-dl-release! It works!
#
# This script downloads an asset from latest or specific Github release of a
# private repo. Feel free to extract more of the variables into command line
# parameters.
#
# PREREQUISITES
#