So You Want to Build a Snowman…But it is Summer Corey Johnson, Field Engineer of Doom, Unity

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

2. COPYRIGHT 2014 @ UNITY TECHNOLOGIES
COREY JOHNSON
FIELD 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

3. COPYRIGHT 2014 @ UNITY TECHNOLOGIES
COREY JOHNSON
FIELD 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

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OVERVIEW
• Cross Platform?
• Golden Rule
• Input
• Aspect Ratio & Resolution
• Min Spec
• Performance
• Services
• Some Random Tips

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CROSS PLATFORM

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HOW BAD CAN IT BE?

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HOW BAD CAN IT BE?

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HOW BAD CAN IT BE?
• Radically different performance
• Radically different form factors
• Radically different input methods
• Radically different monetization methods

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BUT FIRST!!!

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UNITY’S NOT SPECIAL
AT LEAST NOT IN THIS CASE

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UNITY’S NOT SPECIAL
AT LEAST NOT IN THIS CASE
Any technique you would use for any engine, even
your own, can be used in Unity

12. COPYRIGHT 2014 @ UNITY TECHNOLOGIES
UNITY’S NOT SPECIAL
AT LEAST NOT IN THIS CASE
Any technique you would use for any engine, even
your own, can be used in Unity
(probably)

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GOLDEN RULE

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COREY’S GOLDEN RULE

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COREY’S GOLDEN RULE
When it comes to designing an experience, design
specifically for your target platform

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INPUT

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CLEVER INPUT REFERENCE
Separate intent from man-machine interface

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CLEVERER INPUT REFERENCE
public class ExampleClass : MonoBehaviour {
void Update() {
if (Input.GetKey(KeyCode.UpArrow))
Jump();
}
}
}

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CLEVERER INPUT REFERENCE
public class ExampleClass : MonoBehaviour {
void Update() {
if (Input.GetKey(KeyCode.UpArrow))
Jump();
}
}
}

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CLEVER INPUT REFERENCE TO
public class ExampleClass : MonoBehaviour {
void Update() {
if (InputManager.GetIntent(Intents.Jump))
Jump();
}
}
}

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CLEVER INPUT REFERENCE TO
public class InputManager : MonoBehaviour {
void FixedUpdate() {
if (Input.GetKey(KeyCode.UpArrow))
intents[Intents.Jump] = true;
}
}
}

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CLEVER INPUT REFERENCE TO
public class InputManager : MonoBehaviour {
void FixedUpdate() {
if (IsGestureFired(“swipe”, data)
&& data.handId == 1)
intents[Intents.Jump] = true;
}
}
}

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ASPECT RATIO &
RESOLUTION

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ASPECT RATIO
Design your layout system to handle change in
aspect ratio

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ASPECT RATIO

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RESOLUTION

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RESOLUTION
Use appropriate sprites for the screen resolution

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RESOLUTION

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RESOLUTION
What resolution should I develop in?

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MINIMUM SPECIFICATIONS

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MIN SPECS MATTER

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MIN SPECS MATTER
Don’t do all of your development on some über
Maschine

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PERFORMANCE

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GPU
Custom rendering requires custom ports for each
architecture 

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MEMORY
Use as little as possible

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MEMORY

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PLUGINS
Trade off between performance and portability

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SERVICES

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ASSET STORE
Trade off between new functionality and portability
(maybe)

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CLOUD BUILD

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RANDOM ADVICE

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LEAD WITH YOUR OFF FOOT
If you want to ship on multiple platforms
simultaneously, make your lead platform the most
complex

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GRASS IS ALWAYS GREENER
If you plan on shipping to different regions, plan for it

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Questions?
Win a pro license: bit.ly/ibaustin
Corey Johnson, Field Engineer of Doom
carl@unity3d.com