EExpressingxpressing

ZZombiesombies

asasPProgrammablerogrammable

IIndividualsndividuals Abhinav Sharma

Wayne ShuMiles Ulrich

What is EZ as PI?What is EZ as PI?An imperative, interpreted

language for zombie apocalypse simulation

Educational and fun language for novice programmers

Emphasis on simplicity and flexibility

MotivationMotivationZombies are cool!!

Simulate the spread of an epidemic

Let’s see how Humans can save themselves….Will they??

Sample OutputSample OutputSource Code:

Elements of LanguageElements of LanguageBasic Types

#number

@location

^direction

?boolean

!string

Dynamic Attributes (Methods)

##dynamicnum

^^dynamicdirection

…

Human/Zombie

#speed

#power

@start

^strategy

!name

Basic Program StructureBasic Program StructureDefinitions

- Set constants- Define dynamic attributes

Creation of Elements-Create a world-Populate world with humans & zombies

Simulation Phase- dynamic variations- per clock cycle

Post processing

Sample ProgramSample Program^^cautious

if imHumanreturn awayFrom nearestZombie

return toward nearestHumanend

##slowOverTimeif time < 100

return 100-timereturn 1

end

create world 20:10

create 20 zombies withspeed slowOverTimestrategy random

end

create 4 humans withstrategy cautious

end

run 100display graphical

end

print “There are {humanCount} humans still alive”

Translator ArchitectureTranslator ArchitectureLexer Parser

Syntax

tree

Walker

Interpreter

EZ as PI

Library

Other supporting functions

Output

JVM

.ez Source

File

Tools and EnvironmentTools and EnvironmentDevelopment Tools:

Eclipse 3.5Java 1.6 SDK , SwingANTLR 3.2

Management Tools:Google Code – Version controlMS office

Operating System:WindowsLinux

TestingTesting

Black Box

White Box

Unit testing

System testing

Lessons LearntLessons LearntHow to manage time and

resources (limited, less members)Incremental approach towards

problem as a wholeModular is betterChoose the right tools!

Thank YouThank You