irwiss

shader_type canvas_item;

uniform float cells = 8.0; // how many cells in checkerboard pattern
uniform float angle: hint_range(0, 1.57079632679) = 0.0; // repeats every PI / 2

void vertex() { // rotate UVs by angle
	UV *= mat2(vec2(cos(angle), -sin(angle)), vec2(sin(angle), cos(angle)));
}

void fragment() { // assign color by even/odd checkerboard pattern

irwiss

extends Node # for ease of testing attach to a node

func swap_elements(x: Array, a: int, b: int):
	var temp = x[a]
	x[a] = x[b]
	x[b] = temp

# https://en.wikipedia.org/wiki/Heap%27s_algorithm
func heap_permutations(x: Array) -> Array:
	x = x.duplicate() # copy we original array isn't affected by swaps

irwiss

[System.Diagnostics.DebuggerHidden]
[System.Diagnostics.Conditional("DEBUG")]
public static void DebuggerBreakIf(bool condition)
{
    if (condition)
    {
        System.Diagnostics.Debugger.Break();
    }
}

irwiss

#!/bin/bash

# pipe_stdin_to_discord_webhook.sh
# This script triggers discord webhook with input from stdin line-by-line

set -eu

# discord webhook url, pay attention to add ?wait=true at the end
WEBHOOK_URL='https://discordapp.com/api/webhooks/[WEBHOOKID]/[WEBHOOKID]?wait=true'
# grep filter per line, lines not matching won't be sent

irwiss

/*
 * Pgloader script to convert a phpbb mysql database to postgres.
 * Get a fresh postgres database and make a basic phpbb install to create schema.
 * Phpbb wants to keep mysql-ism of boolean columns being int types.
 * Probably worth tidying up stuff like FTS indices, **_track tables before.
 * Assuming this script is called phpbb_mysql_to_postgres.load, database and
 * schema names are "phpbb", run:
 *
 * docker run --network=with_access_to_both_containers \
 *     --rm \

irwiss

# Cloudflare API credentials used by Certbot
# Should be sitting at /srv/certbot/cf.ini
dns_cloudflare_email = your cloudflare email goes here
dns_cloudflare_api_key = your cloudflare key goes here

irwiss

phpbb user pruning tool fails to actually work at > 100 users to prune
even though it happily displays a form with about 30000 checkboxes and
usernames to choose.

Slightly modified - this script wants user_ids_to_delete.txt near it,
with numerical user ids, one id per line.

Bulk delete all users with 0 posts in prevoius revision

This needs a *lot* of memory (or swapfile) if you have a lot of users

irwiss

using UnityEngine;

#if UNITY_EDITOR

using UnityEditor;

[CustomPropertyDrawer(typeof(HelpBoxAttribute))]
public class HelpBoxDrawer : DecoratorDrawer
{
    public override float GetHeight()

irwiss

        /// <summary>Enable TLS1.2 for .NET 4.0 app if .NET 4.5 is installed.</summary>
        /// <seealso cref="http://stackoverflow.com/questions/28286086/default-securityprotocol-in-net-4-5"/>
        /// <returns>True if .NET 4.0 is installed and we enabled the protocol on SevicePointManager.</returns>
        public static bool TryEnableTls12()
        {
            // detect .NET 4.5 or greater https://msdn.microsoft.com/en-us/library/hh925568
            using (var rk = Microsoft.Win32.RegistryKey
                .OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, Microsoft.Win32.RegistryView.Registry32)
                .OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
            {