Quack Attack! the saga begins

A game by Ryan Sullivan

Overview

• Why make a game• Storyline• Design• Problems• Screenshots

Why Make a Game?

• Something I’ve always wanted to do• More fun than previous projects• Graphics programming• Uses concepts learned in CS courses

Storyline

• Background– You are a duck– Your parents lived in a small country

pond– They were killed by a cougar just before

you were hatched– You don’t know what happened to them

Storyline

• Game entrance– You enter game as a newly hatched

duckling– You know nothing about your parents

death– You are alone in the pond

Storyline

• Pass various levels (only two in “The saga begins…”) to gain clues about what happened to your parents

• In “Revenge of the Duck” (not part of this project) you actually confront the evil cougar

Design

• Data Structures/Algorithms– Tree– Disjoint Sets– Collision Detection – Game mode

• SimpEngine– Simple Graphics Engine– It’s pretty much most of my class design

Tree Data Structure

Disjoint Sets

• Used to generate a maze• Every maze cell is it’s own set• Disjoint Sets randomly selects cells

and checks if they’re in the same set• If not, it combines both sets• Keeps going till all cells are in one set

Bounding Box Collision Detection

Game Mode

• Big If Statement• There’s several modes, including…

– Main Menu– Load Level 1– Level 1 instructions– Playing Level One

• Easy to add new modes• This allows me to turn off key/moue input

based on game mode• This controls what is drawn

Game Mode Input

Game Mode Input - Playing

Game Mode Draw

SimpEngine Layout

Tree picture (again)

Problems

• SimpEngine a blessing and a curse– Almost no documentation– No “how to do this”– I’d spend lots of time trying to do

something, then realize there’s a much easier way

• Phantom Errors• Time – ROTC• Senioritis

Summary

• Why make a game• Storyline• Design• Problems• Screenshots