1. E xpressing Z ombies as P rogrammable I ndividuals Abhinav Sharma Wayne Shu Miles Ulrich

2. 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

3. Motivation Zombies are cool!! Simulate the spread of an epidemic Let’s see how Humans can save themselves…. Will they??

4. Sample Output Source Code:

5. Elements of Language Basic Types #number @location ^direction ?boolean !string Dynamic Attributes (Methods) ##dynamicnum ^^dynamicdirection … Human/Zombie #speed #power @start ^strategy !name

6. Basic Program Structure Definitions - 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

7. Sample Program ^^cautious if imHuman return awayFrom nearestZombie return toward nearestHuman end ##slowOverTime if time < 100 return 100-time return 1 end create world 20:10 create 20 zombies with speed slowOverTime strategy random end create 4 humans with strategy cautious end run 100 display graphical end print “There are {humanCount} humans still alive”

8. Translator Architecture LexerParser Syntax tree Walker Interpreter EZ as PI Library Other supporting functions Output JVM.ez Source File

9. Tools and Environment Development Tools: Eclipse 3.5 Java 1.6 SDK, Swing ANTLR 3.2 Management Tools: Google Code – Version control MS office Operating System: Windows Linux

10. Testing Black Box White Box Unit testing System testing

11. Lessons Learnt How to manage time and resources (limited, less members) Incremental approach towards problem as a whole Modular is better Choose the right tools!

12. Thank You