So You Want to Build a Snowman…But it is Summer

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SO YOU WANT TO BUILD A SNOWMAN…But it’s summer.

COREY JOHNSONFIELD ENGINEER OF DOOM• Game industry for 10+ years

• Electronic Arts for 6.5, Unity for the rest

• Worked on game engines, tools, gameplay, UI, networking,

and services

• Credited in dozens of title but shipped Ultima Online:

Kingdom Reborn and Darkspore

• Loves games, soccer, and pop culture

COREY JOHNSONFIELD ENGINEER OF DOOM• Game industry for 10+ years

• Electronic Arts for 6.5, Unity for the rest

• Worked on game engines, tools, gameplay, UI, networking,

and services

• Credited in dozens of title but shipped Ultima Online:

Kingdom Reborn and Darkspore

• Loves games, soccer, and pop culture

• Uses the power of love to help people

OVERVIEW• Cross Platform?

• Golden Rule

• Input

• Aspect Ratio & Resolution

• Min Spec

• Performance

• Services

• Some Random Tips

CROSS PLATFORM

HOW BAD CAN IT BE?

• Radically different performance• Radically different form factors• Radically different input methods• Radically different monetization methods

BUT FIRST!!!

UNITY’S NOT SPECIALAT LEAST NOT IN THIS CASE

Any technique you would use for any engine, even

your own, can be used in Unity

Any technique you would use for any engine, even

your own, can be used in Unity

(probably)

GOLDEN RULE

COREY’S GOLDEN RULE

When it comes to designing an experience, design

specifically for your target platform

CLEVER INPUT REFERENCE

Separate intent from man-machine interface

CLEVERER INPUT REFERENCEpublic class ExampleClass : MonoBehaviour {

void Update() {if (Input.GetKey(

KeyCode.UpArrow))Jump();

CLEVERER INPUT REFERENCEpublic class ExampleClass : MonoBehaviour {

void Update() {if (Input.GetKey(

KeyCode.UpArrow))Jump();

CLEVER INPUT REFERENCE TOpublic class ExampleClass : MonoBehaviour {

void Update() {if (InputManager.GetIntent(Intents.Jump

))Jump();

CLEVER INPUT REFERENCE TOpublic class InputManager : MonoBehaviour {

void FixedUpdate() { if (Input.GetKey(

KeyCode.UpArrow))intents[Intents.Jump] =

true;}

CLEVER INPUT REFERENCE TOpublic class InputManager : MonoBehaviour {

void FixedUpdate() { if (IsGestureFired(“swipe”, data)

&& data.handId == 1)intents[Intents.Jump] =

true;}

ASPECT RATIO & RESOLUTION

ASPECT RATIO

Design your layout system to handle change in aspect

ASPECT RATIO

RESOLUTION

Use appropriate sprites for the screen resolution

RESOLUTION

What resolution should I develop in?

MINIMUM SPECIFICATIONS

MIN SPECS MATTER

Don’t do all of your development on some über

Maschine

PERFORMANCE

Custom rendering requires custom ports for each

architecture

MEMORY

Use as little as possible

MEMORY

PLUGINS

Trade off between performance and portability

SERVICES

ASSET STORE

Trade off between new functionality and portability

(maybe)

CLOUD BUILD

RANDOM ADVICE

LEAD WITH YOUR OFF FOOT

If you want to ship on multiple platforms

simultaneously, make your lead platform the most

complex

GRASS IS ALWAYS GREENER

If you plan on shipping to different regions, plan for it

Questions?

Win a pro license: bit.ly/ibaustinCorey Johnson, Field Engineer of Doom

carl@unity3d.com

So You Want to Build a Snowman…But it is Summer

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