hardly workin'

Travis A. Wagner trvswgnr

hardly workin'

trvswgnr / index.ts

Created August 26, 2024 16:00

bun build and serve with browser hmr

	import path from "path";
	import chokidar from "chokidar";
	import fs from "fs";
	import type { ServerWebSocket } from "bun";

	const CONFIG = Object.freeze({
	srcDir: "./src",
	outDir: "./public",
	entrypoints: ["index.ts"],
	});

trvswgnr / compress_video

Last active September 17, 2024 13:38

portable shell script to compress videos with ffmpeg

	#!/bin/sh

	print_usage() {
	echo "usage: compress_video <input_file>"
	echo "supported formats: mp4, webm, mkv, mov, avi, flv"
	}

	get_extension() {
	f="${1##*/}"
	case "$f" in

trvswgnr / main.go

Created August 15, 2024 08:16

raycasting multiple layers in go with ebitengine

	package main

	import (
	"image/color"
	"log"
	"math"

	"github.com/hajimehoshi/ebiten/v2"
	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
	"github.com/hajimehoshi/ebiten/v2/vector"

trvswgnr / mergesort.ml

Created August 14, 2024 09:03

ocaml in-place merge sort

	let merge arr l m r max =
	let i = ref l in
	let j = ref (m + 1) in
	let k = ref l in
	while !i <= m && !j <= r do
	if arr.(!i) mod max <= arr.(!j) mod max then (
	arr.(!k) <- arr.(!k) + (arr.(!i) mod max * max);
	incr k;
	incr i)
	else (

trvswgnr / djb2.c

Last active July 24, 2024 04:00

various hash algorithms in c

	#include <stdint.h>

	uint32_t hash_djb2(unsigned char *str) {
	uint32_t hash = 5381;
	uint32_t c;

	while ((c = *str++))
	hash = ((hash << 5) + hash) + c; /* hash * 33 + c */

	return hash;

trvswgnr / fetchJson.test.ts

Last active September 6, 2024 00:00

nice lil typescript fetch wrapper with errors as values

	import { describe, it, expect, spyOn } from "bun:test";
	import { fetchJson } from "./fetchJson";

	class MockResponse {
	static instanceCount = 0;
	constructor(
	public readonly ok: boolean,
	private jsonSuccess: boolean \| "bad parse",
	) {
	MockResponse.instanceCount++;

trvswgnr / fileContains.test.ts

Last active July 31, 2024 19:47

check if a file contains a specified phrase, without loading the entire file into memory

	import { describe, it, expect, beforeAll, afterAll } from "bun:test";
	import { fileContains, BoyerMooreSearcher } from "./fileContains";
	import fs from "fs";
	import path from "path";

	describe("fileContains", () => {
	const testDir = path.join(__dirname, "test-files");

	beforeAll(() => {
	if (!fs.existsSync(testDir)) {

trvswgnr / tramp.ts

Last active July 11, 2024 18:59

trampoline typescript

	/**
	* Transforms a function that returns either a direct value or a thunk (a
	* no-argument function that returns a value) into a function that only returns
	* a direct value. It does this by repeatedly evaluating the function if it
	* returns a thunk, until a direct value is obtained.
	*
	* @template T The type of the value to be returned by the trampoline function.
	* @template A The type tuple representing the argument types accepted by the
	* function f.
	* @param f A function that takes arguments of type A and returns either a

trvswgnr / Timeout.test.ts

Created June 27, 2024 20:39

custom setTimeout implementation in TypeScript

	import { describe, it, expect, mock } from "bun:test";
	import { Timeout } from "./shared";

	describe("Timeout", () => {
	it("should call the callback after a specific time", async () => {
	expect.hasAssertions();
	return await new Promise<void>((resolve) => {
	const start = Date.now();
	Timeout.set(() => {
	expect(Date.now() - start).toBeGreaterThanOrEqual(100);

trvswgnr / map.ts

Last active June 26, 2024 11:45

custom ts map with eq and cmp