Rapid, Iterative Prototypingor, How to Rip off Dinosaur Comics

What we’re gonna cover

• The path to our first game• Show off some interim builds • Lessons learned • 4 ways to Prototype!

• And occasionallydinosaurs

Who Are We?Eitan Sharat

2007

Eitan

2008

2009

Starting out

Starting out• Focus on our strengths, know (and work on)

our weaknesses

Our First Game

Scope

Scope it right!

NOToo Big

Perfect Size(Awesome Game, btw)

Start PrototypingFour Days, Three Prototypes

Test on the fifth day, and listen to testers

Mon

Brainstorm Ideas

Tues

Prototype ideas 1 and 2

Wed

Prototype ideas 2 and 3

Thurs

Prototype idea 3,

polish all

Friday

Test all Day

Just get it done

Art assets?

Code base?

Ask Questions/Get Help

1st Week Demos

Lessons from 1st week• Do anything to get the early games done fast

• Use programmer art or steal assets

• Use open source code if doing tech prototype

• Paper prototyping is ok!

• Don't forget to play test!

Find Creative Solutions

Small Team Management

Deadlines are your friendTest every week, no matter what!

Mon

Brain Storm

Tues

Prototype 1st idea

Wed

Prototype 2nd idea

Thurs

Prototype 3rd idea

Friday

Test!Analyze

Mon

Revise Design

Tues

Prototype Revision

Wed

Prototype Revision

Thurs

Prototype Revision

Friday

TEST!

Analyze Testing Results

>

Take feedback w/grain of salt

Is it viable?

What Changed?

• Keyboard or Xbox controllers

• 1 player or 2 player

• Build with beams, wires, pipes

• Better graphics and animations (some stolen)

• Basic enemy AI and building physics

• Music (stolen) + lots of sound effects

• Multiple levels + level editor (idea from prototype 3)

• Achievements (to impress Dave)

1st Month Demo

Lessons from 2nd Prototype• Test constantly and interpret feedback

• Simple project management, good communication

• Make friends, ask for help, get advice

• Make deadlines + stick to them!

Ways to Prototype

• #1 – The Paper Prototype• #2 – The Web Prototype• #3 – The (Stolen) Tech Prototype• #4 – The Wizard of Oz Prototype

• We'll cover Pros + Cons, Weapons, and Tricks

#1 – The Paper Prototype

• Pros/Cons+ Requires no programming experience

+ Quick to make and iterate on

+ Can be modified on the fly during testing

- Hard to test with multiple users at once (need one prototype per testing session)

- Easy to unintentionally bias testers

- Tends to get unrealistically high praise

#1 – The Paper Prototype

• Weapons

#1 – The Paper Prototype

• Tricks– Shut up during testing! Don't influence!– Use big font + images, roughly 2-3x what

they would be on the screen– The “computer” should be mechanical.

Have a second group member conduct testing.

– Make sure the paper version can be implemented on a computer

#2 – The Web Prototype

• Pros/Cons+ Can be quick and have high fidelity look + feel

+ Can be tested with many users, even remotely

+ Easy to throw out after testing

- Users will focus on layout, not just gameplay

- Limits creativity in design (big problem!)

- Requires someone to know html or other web programming

#2 – The Web Prototype

• WeaponsHTML, CSS, PHP, Javascript, FBML, Flex,

Dreamweaver, Surveymonkey for remote testing

#2 – The Web Prototype

• Tricks– Be aware of reliance on widgets! They

limit design creativity, and will cause your interface to look shitty

– Test like crazy since it is so easy– Use art sketches (.jpgs, .pngs) for

interface elements wherever possible. Even a sketched button is better than a widget button

#3 – The (Stolen) Tech Prototype

• Pros/Cons+ Modding, not coding from scratch

+ Can be VERY high fidelity, highest of all the types of prototypes mentioned here

+ It's hardcore – if you can do this, making the game will be cake

- Easy to get attached to code

- Requires VERY strong coders

#3 – The (Stolen) Tech Prototype

• Weapons– Open Source (Pygame, Box2D, etc.),

existing games with source you can grab, previous projects (ex GAMBIT games?)

#3 – The (Stolen) Tech Prototype

• Tricks– Only attempt if you are really, really

confident in your programming ability.– MUST throw away code at the end– Don't write what you can copy– Do NOT mess with underlying engine

(physics, camera, rendering, etc.)

#4 – The Wizard of Oz Prototype

• Pros/Cons+ Requires little programming knowledge, if

any

+ Can simulate complicated game AI/functionality

= Like a high tech paper prototype

- Testing is slow and requires at least 2 people (probably 3) per session

- May not be possible for every game

#4 – The Wizard of Oz Prototype

• Weapons– Tape recorder/player, instant messenger,

remote/shared control programs

#4 – The Wizard of Oz Prototype

• Tricks– Can be hybridized with other prototyping

methods– Hide the “Wizard” from the tester– Be ready for tech to break– Wizard must be mechanical, and act like a

computer.

Incremental Improvements = Big Progress

Neil Armstrong: “One small step for man, one giant leap for mankind”

Identify + kill bad ideas

Do it now, get it right later

And have fun in the process!

Questions?

eitan@firehosegames.com

sharat@firehosegames.com

www.firehosegames.com