Hyeseong Kim cometkim

CUSTOM GAME ENGINES: A Small Study

WARNING: Article moved to separate repo to allow users contributions: https://github.com/raysan5/custom_game_engines

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](https:

useSubscription and useMutableSource¹ tearing and deopt behavior.

Mounting a new tree

The tree below represents a React application mounting. During mount, two components read from an external, mutable source. The first one (List) reads version 1 of that data and the second one (Item) reads version 2.

Deopt

`useSubscription` (legacy mode)

N/A.

Retrieving Docker Image Sizes

There are two metrics that are important to consider when discussing the size of Docker images.

Compressed size - This is often referred to as the wire size. This affects how fast/slow images can be pulled from a registry. This impacts the first run experience on machines where images are not cached.
Uncompressed size - This is often referred to as the size on disk. This affects how much local storage is required to support your Docker workloads.

The example commands shown below will work on Windows, MacOS, and Linux.

How to Measure the Compressed Size

스타트업에 traefik + docker-swarm을 추천하는 이유

Traefik: Reverse-proxy router
Docker-swarm: Docker-supported orchestrator

왜 Docker-Swarm인가?

kubernetes(이하 k8) 는 무겁고 느리다. docker-swarm(이하 DS) 은 docker 최신버전에 기본으로 탑재되어 나온다. 또한 helm이나 별도의 관리 cli(kubeadm, kubectl)를 설치할 필요가 없다.
k8 은 세팅도 어렵다: 세팅하기가 워낙 까다로워 실제로 운영하기 적절한 경우는 devops 팀을 가진 최소 20명 이상의 대규모 사이즈 팀이다. 한 명이 작업하는 것이 아주 불가능한 것은 아니지만, 긴급수정시에는 많이 위험해질 수 있다. 총원이 10명이 되지 않는 우리팀 같은 경우는 한 사람이 급하게 기능수정을 해야될 일이 많다.


	/**
	* Find the point(s) where a line segment intersects an ellipse.
	* @param x0 The x-axis coordinate of the line's start point.
	* @param y0 The y-axis coordinate of the line's start point.
	* @param x1 The x-axis coordinate of the line's end point.
	* @param y1 The y-axis coordinate of the line's end point.
	* @param cx The x-axis (horizontal) coordinate of the ellipse's center.
	* @param cy The y-axis (vertical) coordinate of the ellipse's center.
	* @param rx The ellipse's major-axis radius. Must be non-negative.

	import {
	React,
	} from "https://unpkg.com/es-react";

	declare global {
	namespace JSX {
	interface IntrinsicElements {
	h1: any;
	div: any;
	h2: any;

	const bypass = [
	// function names to avoid logging
	];
	const collapsed = [
	// function names to groupCollapsed
	];

	module.exports = function(babel) {
	const { types: t } = babel;
	const wrapFunctionBody = babel.template(`{

	// This is a proper alternative to
	// https://github.com/BuckleScript/bucklescript/blob/b9508105b1a35537bdea9a1fabd10f6c65f776b4/jscomp/bsb/templates/react-hooks/src/FetchedDogPictures/FetchedDogPictures.re#L14
	// The one in that file uses Promise, but that's wrong.
	// We only used promise as a demo of its API. We'll remove it soon.

	// As you can see below, the pure XMLHttpRequest code is just as clean,
	// less mysterious for all, more performant, extensible, and actually correct.

	// Ignore these externals for now. They're just for illustration
	// purposes. I just copy pasted the Js code from

	-- original code: https://github.com/ericelliott/cuid

	-- Add the "plv8" extension
	create extension if not exists "plv8";

	-- Add the "pgcrypto" extension
	create extension if not exists "pgcrypto";
	\dx

	-- Connect a database

	import { addMiddleware } from 'graphql-add-middleware';

	addMiddleware(schema, traceResolveMiddleware);