quillaja’s gists

quillaja / game_of_life.go

Last active October 18, 2017 00:40

Conway's game of life in go.

	package main

	import (
	"flag"
	"fmt"
	"time"
	)

	// Board is a set of points that are 'alive'
	type Board map[Point]bool

quillaja / base62.py

Created November 6, 2017 04:10

Sample creation of base64 strings not as hashes.

	import random
	import argparse


	def get_key(length: int = 8) -> str:
	b62_alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$+"
	key = random.choices(b62_alphabet, k=length)
	return ''.join(key)

quillaja / walker.go

Last active February 8, 2018 10:33

A little random walker experiment.

quillaja / camera.go

Created February 16, 2018 07:27

Camera for Pixel graphics library

	package main

	import (
	"math"

	"github.com/faiface/pixel"
	"github.com/faiface/pixel/pixelgl"
	)

	// An interal type to store 2 related numbers, a low and high bound.

quillaja / mouse_zoom.go

Last active February 19, 2018 07:51

camera example from https://github.com/elliotmr/tmx/tree/master/pixeltmx/example

	cameraOrigin := pixel.ZV.Add(win.Bounds().Center())
	scale := 1.0
	dragOrigin := pixel.V(0, 0)
	second := time.Tick(time.Second)
	viewMatrix := pixel.IM
	frames := 0
	for !win.Closed() {
	if win.MouseScroll().Y != 0 {
	factor := math.Pow(1.2, win.MouseScroll().Y)
	zoomDeltaStart := viewMatrix.Unproject(win.MousePosition())

quillaja / xraydl.fish

Last active December 7, 2020 01:24

fish shell script to download archived xray.fm shows

	#! /usr/bin/fish

	#==============
	# This is a fish shell script to download archived mp3 files of shows
	# from the radio station XRAY (krxy).
	#==============

	# get show numbers given show title (in url style)
	# curl -s https://xray.fm/shows/home-of-space-paranoid \| grep -Poe '(?<=title"\>\<a href="\/broadcasts\/)\d*?(?=")'

quillaja / pcg.go

Created June 24, 2018 09:26

PCG psudo random number generator (minimal)

	// port of C source: http://www.pcg-random.org/download.html

	type PCG32 struct {
	state, seq uint64
	}

	func NewPCG32(stateSeed, seq uint64) *PCG32 {
	return &PCG32{
	state: stateSeed,
	inc: seq }

quillaja / servehere.go

Created July 10, 2018 14:35

Very simple http fileserver for serving locally while testing web apps, etc.

	// Package main implements a simple http file server mainly for use in
	// serving files locally when testing web apps.
	package main

	import (
	"flag"
	"log"
	"net/http"
	)

quillaja / bresenham.go

Last active January 26, 2020 05:51

Go version of Bresenham's line algorithm.

	// plotline draws a simple line on img from (x0,y0) to (x1,y1).
	//
	// This is basically a copy of a version of Bresenham's line algorithm
	// from https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm.
	func plotline(img draw.Image, c color.Color, x0, y0, x1, y1 int) {
	dx := abs(x1 - x0)
	sx := -1
	if x0 < x1 {
	sx = 1
	}

quillaja / arena.go

Created March 31, 2021 06:18

go memory arena

	package arena

	// #include <malloc.h>
	import "C"
	import (
	"runtime"
	"unsafe"
	)

	// Arena memory allocator gets a large chunk of memory from the system at once

Ben quillaja