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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

Quick examples

feat: new feature
fix(scope): bug in scope
feat!: breaking change / feat(scope)!: rework API
chore(deps): update dependencies

Commit types

build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
ci: Changes to CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
chore: Changes which doesn't change source code or tests e.g. changes to the build process, auxiliary tools, libraries

Logitech MX Master 3 Extras for Linux With logiops

The Logitech Options program isn't available for Linux, but by a nice guy on GitHub (PixlOne) created an open source project that lets you obtain some of that functionality. It's called logiops. It works in conjunction with the Solaar project as well, which I find especially handy since that shows your available battery life in the system tray and lets you pair/unpair devices with the Logitech Unifying Receiver.

Here are some additional pages with info that I used to generate this documentation:

To remove a submodule you need to:

Delete the relevant section from the .gitmodules file.
Stage the .gitmodules changes git add .gitmodules
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Run rm -rf .git/modules/path_to_submodule (no trailing slash).
Commit git commit -m "Removed submodule "
Delete the now untracked submodule files rm -rf path_to_submodule

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	#!/usr/bin/env python2

	import SimpleHTTPServer
	import SocketServer
	import logging

	PORT = 8000

	class GetHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):

	@echo off
	echo ----------------------------------------------------------------------
	echo VIDEO AND SUBTITLE MERGER
	echo version 1.0.0 by Seyoum
	echo ----------------------------------------------------------------------
	:: Set file video extention
	:VIDEOFILEEXTENTION
	echo.
	set /p videofileformat=Enter the video file type extension (e.g mp4):
	if /I "%videofileformat%" EQU "webm" echo You have chosen %videofileformat% as your video file format&goto:SUBTITLEFILEEXTENTION

	#!/bin/sh
	#
	# Postgresql backup script
	# http://www.bitweaver.org/wiki/pg_backup+PostgreSQL+backup+script
	#
	# Author
	# \|
	# +-- speedboy (speedboy_420 at hotmail dot com)
	# +-- spiderr (spiderr at bitweaver dot org)
	# +-- flexiondotorg (code at flexion dot org)

	#!/bin/bash

	# Prune local orphan refs
	git prune -v

	# Deletes all stale (local) remote-tracking branches under origin.
	# These stale branches have already been removed from the remote repository
	# referenced by <name>, but are still locally available.
	git remote prune origin

	// Merge all attributes of multiple PDF files (pdf-full-merge.js)
	// Extended from MuPDF's docs/examples/pdf-merge.js

	// Ever had problems with tools that don't copy certain attributes of a PDF?
	// This script uses MuPDF to merge/join/concatenate as much as possible, including:
	// - bookmarks / outlines / table of contents
	// - link attributes of said outlines, such as viewrect and zoom
	// - whether outlines appear open or closed by default
	// - annotations
	// - 3d objects / PDF3D