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Guide for Unity Addressable Asset System.
Check out this sample code repo.

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Created: 2020-07-03
Last updated: 2020-08-26 minor typo correction

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:

	// Drawing a line with UITK https://forum.unity.com/threads/drawing-a-line-with-uitk.1193470/
	public class LineDrawer : VisualElement
	{
	private Vector3 startPos, endPos;
	private float thickness;

	public LineDrawer(Vector3 pos1, Vector3 pos2, float width)
	{
	startPos = pos1;
	endPos = pos2;

	public static class ExtensionMethods
	{
	public static TaskAwaiter GetAwaiter(this AsyncOperation asyncOp)
	{
	var tcs = new TaskCompletionSource<object>();
	asyncOp.completed += obj => { tcs.SetResult(null); };
	return ((Task)tcs.Task).GetAwaiter();
	}
	}

	using UnityEngine;

	public class MeshBlit : MonoBehaviour
	{
	public RenderTexture rt;

	public Mesh mesh;
	public Material material;

	public Vector3 meshPosition = new Vector3(0.5f, 0.5f, -1);

	# Sourcecode
	*.txt diff
	*.cs diff
	*.json diff
	*.meta diff
	*.xml diff
	# 3D models
	*.3dm filter=lfs diff=lfs merge=lfs -text
	*.3ds filter=lfs diff=lfs merge=lfs -text
	*.blend filter=lfs diff=lfs merge=lfs -text

	// ported from: https://gist.github.com/noonat/847106

	import hxd.Timer;
	import h3d.Buffer;
	import h3d.Engine;
	import h3d.Indexes;
	import h3d.Vector;
	import h3d.mat.BlendMode;
	import h3d.mat.Data.Compare;
	import h3d.mat.Data.Face;

	"The common wisdom of "don't use conditionals in shaders" is one of my biggest frustrations with how shaders are taught.
	step(y, x) _is_ a conditional! It compiles to identical code as:
	float val = (x >= y ? 1.0 : 0.0)
	or
	float val = 0.0;
	if (x >= y) val = 1.0;"
	https://twitter.com/bgolus/status/1235254923819802626

	// Performing shader divisions without diving *rcp = approximation of 1/x
	float myDividedVal = myValToDivide * rcp(myDivider);

	class Main {
	macro static function swap(a, b) {
	return macro { var v = $a; $a = $b; $b = v; };
	}
	static function main() {
	var i = 10, j = 15;
	trace(i, j); // 10, 15
	swap(i, j);
	trace(i, j); // 15, 10
	}