Unity for Software Engineers

8/17/2019 Unity for Software Engineers

1/28


2/28


3/28

Introduction

!

Unity is a Game Engine! In constant development, multitude of

plugins available on the Asset Store

!

Before official 2D support, alternative mix of frameworks and workarounds


4/28

Unity

!

Built with Mono! UnityEditor is built with (mostly) the sa

API used to make games in Unity

!

Output to Web (plugin), iOS, Androidand soon WebGL


5/28

Unity

!

IL2CPP: an AOT compiler and VM! Their own implementation of the CLI

! Claim 2x, 3x performance uptick over

usage of Mono! Not about recreating .NET or Mono

toolchain, will still use Mono C# comp


6/28


7/28

ExampleMonoBehaviour.cs

void Start()

void Update()

void OnDisable()


8/28

Basic Workflow

!

Drag and Drop assets intoScene, creating GameObjects

! Specialize GameObjects withComponents

!

Set properties on Components! Problematic for teams larger

than 2


9/28

Basic Workflow - Problems

!

Scenes are problematic for version control, sincare basically binaries

! Solutions and workarounds: heavy use of prefa

view scenes as prefabs interacting (have a prefwhole UI, for example)

! Lack of visibility for engineers


10/28

Design Patterns

MVVM! Model - C# class

! View Model - MonoBehaviour

! View - GameObject


11/28

Design Patterns

Dependency Injection

To avoid using GameObject.Find or static classes

Already a number of frameworks:

! StrangeIoC

! Zenject


12/28

Zenject Context example public class Context : MonoBehaviour

{

public Root root;

public void RegisterBindings(DiContainer container){

container.Bind().AsSingle(root);

container.Bind().AsSingle();

container.Bind().AsSingle();container.Bind().AsSingle();

container.Bind().AsSingle();

container.Bind().AsSingle();}

}


13/28

Art Integration

! High artist input is encouraged

! Artists can work with Unity on a daily basis, desUI and tinker

! They don’t need an engineer to build the game

can test their changes themselves


14/28

UI System

!

Official Unity UI recently released! Visual design driven

! Artists and designers can implement tdesigns directly


15/28


16/28

Animations


17/28

Unit Tests

! Compatible with any C# unit testing frameworks

! UnityUnitTesting: open source package to visualiz

results within the Unity Editor

! MonoBehaviours are impossible to test (they can’t

instantiated) - Solution: separate logic from MBs! UnityTestTools allows testing GameObjects within

scenes


18/28

Dependency Management & CI

! Maven plugin

! Create C# libs for general purpose functionalitycomms, etc)

! Automated builds for iOS, Android, etc

! AssetBundles: dynamically load new content


19/28


20/28

Native Plugins

!

Similar flow to AIR’s native extensionsbuild native functionality in Objective-

! Prime31: one of the top Unity native p

suppliers, they’ve made Purchases,Facebook and others


21/28

Case Study: Samurai Siege


22/28



23/28


! 6 month development timeFeb - July 2013, soft launch Australia & New Ze

! 3 months polish, global launch October 2013

! Team had no previous experience with Unity


24/28

Conclusion

! Impetus to use Unity is speeding up our gamedevelopment process

! Speed up asset integration by allowing artists todirectly on the project

! Speed up game prototyping and testing of ideasprototype a new feature in a day, then spend a cweeks implementing)


25/28

Conclusion

! Although heavily oriented by visual design, thesolutions to allow higher degree of visibility andof the project to engineers

!

Posit: faster art integration, more time for enginwork on new features, optimization

! Viability for Mobile is proven, Web is still to be s


26/28

License

Unity Pro iOS Pro Android Pro Tota

One-off perversion (4.x, 5x)

1500$per developer

1500$per developer

1500$per developer

450per

Subscription 75$per monthper developer

75$per monthper developer

75$per monthper developer

225per per


27/28

Reference

IL2CPP: http://blogs.unity3d.com/2014/05/20/the-future-of-scripting

Design Patterns for Unity:https://docs.google.com/document/d/1Kja6ZSBaG0Fl4WyBklPSUDLmjCo8jilDGkhW3dOxF2c/pub

Samurai Siege:

http://www.pocketgamer.biz/asia/feature/59222/clash-of-alliances-tof-samurai-siege/

http://www.gamasutra.com/view/pressreleases/217015/SAMURAI_SIEGE_SURPASSES_12_MILLION_REVENUE_IN_FINTHS.php

http://www.gamasutra.com/view/pressreleases/217015/SAMURAI_SIEGE_SURPASSES_12_MILLION_REVENUE_IN_FIRST_SIXMONTHS.phphttp://www.pocketgamer.biz/asia/feature/59222/clash-of-alliances-the-making-of-samurai-siege/https://docs.google.com/document/d/1Kja6ZSBaG0Fl4WyBklPSUDLmjCo8jilDGkhW3dOxF2c/pubhttp://blogs.unity3d.com/2014/05/20/the-future-of-scripting-in-unity/


28/28

Reference

Unit & Integration Testing

https://github.com/catburton/UnityUnitTesting

http://blogs.unity3d.com/2013/12/18/unity-test-tools-released/

http://blogs.unity3d.com/2014/06/03/unit-testing-part-2-unit-testing-monobehaviours/

New UI Systemhttp://blogs.unity3d.com/2014/05/28/overview-of-the-new-ui-system

Jenkins plugin: https://github.com/jenkinsci/unity3d-plugin
https://github.com/jenkinsci/unity3d-pluginhttp://blogs.unity3d.com/2014/05/28/overview-of-the-new-ui-system/http://blogs.unity3d.com/2014/06/03/unit-testing-part-2-unit-testing-monobehaviours/http://blogs.unity3d.com/2013/12/18/unity-test-tools-released/https://github.com/catburton/UnityUnitTesting

Documents

Unity for Software Engineers