Mladen Mihajlović mika76

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:

	import { useSlots } from 'vue';

	export default function useHasSlot() {
	const slots = useSlots();
	return function hasSlot(name) {
	return slots[name] && !isEmptySlot(slots[name]());
	};
	}

	function isEmptySlot(items) {

	const rand = (min, max) => min + Math.floor(Math.random() * max);

	class Dots {
	static get inputProperties() {
	return [
	'--bg-color',
	'--dot-color',
	'--mouse-x',
	'--mouse-y',
	];

	-- pixel-like coin glint

	-- USAGE:
	-- require ("glint')

	--local object = display.newImage("image.png")

	--object.fill.effect = "filter.custom.glint"
	--object.fill.effect.intensity = 1.0 -- how bright the glint is
	--object.fill.effect.size = 0.1 -- how wide the glint is as a percent of the object

	<template>
	<div
	ref="muuriel"
	class="muuri"
	>

	<div
	class="muuri-item"
	v-for="field in value"
	:muurikey="field[muurikey]"

	class RightChatBubble extends CustomClipper<Path> {
	@override
	Path getClip(Size size) {
	// TODO: implement getClip
	Path path = new Path();

	double factor = 10.0;
	path.lineTo(0, size.height - factor);

	// Curve Left bottom.

	import { ref, computed, onBeforeUpdate, Comment, Fragment, Text, useSlots } from 'vue'

	// Adapted from https://github.com/vuejs/vue-next/blob/ca17162e377e0a0bf3fae9d92d0fdcb32084a9fe/packages/runtime-core/src/helpers/renderSlot.ts#L77
	// Demo: https://play.vuejs.org/#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

	--This code uses the following RGB trick
	--https://gist.github.com/lucatronica/6dc7fae058440ab208d99584fe314e5c

	--Setting up the RGB colors.
	--Unlike the above example, we're using all 16 colors now!
	--That's because we're now using the 4th bit of the color index.
	--We use this bit (color 8) for the background text color.
	pal({
	8,11,10,140,14,12,7,
	129,8,11,10,140,14,12,7,

	-- In RGB displays, each pixel contains 3 subpixels for red, green and blue.
	-- The intensity of each subpixel can be changed independently.
	-- Mixing different intensities of each allows for a large range of colors.

	-- In this program, we'll use a similar approach.
	-- Except our RGB subpixels can only be on or off, which limits us to 8 colors.

	-- We can treat a PICO-8 color index like an RGB pixel by treating the first 3
	-- bits as flags for each RGB subpixel.

	open System
	open System.Threading
	open Akkling
	open DemoFs

	[<EntryPoint>]
	let main argv =

	let config = """
	akka.loglevel = DEBUG