Jacob Chapman chapmanjacobd

CUSTOM GAME ENGINES: A Small Study

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like Unreal or Unity for their games (or that's what lot of people think) because d

Notes on using FFMPEG and FFPROBE

Count frames in a video

Get reported number of frames

Get the reported and actual number of frames in a video.

Note: I recently found a video that reported having 2985 frames, but actually only had 29 frames, which were all keyframes.

Install/copy:

Run keybinds.ahk with autohotkey, Win+Enter spawns new terminal.

	#!/bin/bash
	###
	### my-script — does one thing well
	###
	### Usage:
	### my-script <input> <output>
	###
	### Options:
	### <input> Input file to read.
	### <output> Output file to write. Use '-' for stdout.

	.input {
	@apply bg-white rounded-lg w-full max-w-lg px-6 border border-gray-300 py-3 mt-2;

	&::placeholder {
	@apply text-gray-dark;
	}

	&:focus {
	@apply border-opacity-0 outline-none shadow-outline-blue;
	}

	#In R 3.6, run:
	.libPaths()[1]
	#Copy this directory path and paste it on the line below;
	#Then run all lines below in R 4.0:
	PASTED <- "C:/Users/.../R/win-library/3.6"
	currentPackages <- list.dirs(path = PASTED , recursive = FALSE)
	currentPackages
	trimmed <- stringr::str_replace_all(currentPackages, paste(PASTED , "/", sep = ""), "")
	toInstall <- dput(trimmed)
	doInstall <- TRUE

	SELECT ?ingredient ?ingredientLabel (GROUP_CONCAT(DISTINCT ?sandwichLabel; SEPARATOR = ", ") AS ?sandwiches) WHERE {
	?sandwich ((wdt:P31?)/(wdt:P279*)) wd:Q28803;
	wdt:P527 ?ingredient.
	MINUS { ?ingredient (wdt:P279*) wd:Q7802. }
	SERVICE wikibase:label {
	bd:serviceParam wikibase:language "en", "fr".
	?sandwich rdfs:label ?sandwichLabel.
	?ingredient rdfs:label ?ingredientLabel.
	}
	}

	SELECT
	?film
	?title
	?directors
	?year
	WHERE
	{
	SELECT
	?film
	?title

	/*
	Copy this into the console of any web page that is interactive and doesn't
	do hard reloads. You will hear your DOM changes as different pitches of
	audio.

	I have found this interesting for debugging, but also fun to hear web pages
	render like UIs do in movies.
	*/

	const audioCtx = new (window.AudioContext \|\| window.webkitAudioContext)()

	#!/bin/bash

	# set -x

	print_usage() {
	echo "$0 [--map=0:3] video_file" >&2
	echo "" >&2
	echo "With video_file the path to a file like mkv which embeds the subtitles" >&2
	echo "--map: use the specified embedded subtitle." >&2
	echo "" >&2