Software Engineering
IDE and Development Engines engines – crash course
Game engine
Computer game = infrastructure + content
Game engine = infrastructure layer of game development process
Game engine
Same infrastructure, several games Example: Unreal engine
(http://www.netbeans.org)
Dozens of systems developed using Unrealistic approaches to software design
Big business: Software license can cost upto US$750,000 or more
Game engine – Unreal
Unreal games (a few examples):
IDE Basics in Netbeans
“Technical” issues encapsulated in infrastructure
“Artistic” issues (i.e. content) released from technicalities
IDE engine
generic
usef
ul
Usefulness versus Genericity
IDE engine – 2D engines
Command line apps are (just) slightly simpler to develop and implement, including technical issues
GUI Apps are more complex
2D game engine – example
Gamemaker by Mark Overmars http://www.gamemaker.nl Written in Delphi v.7 About 40 thousand lines of code Project started in 1999 First public release took about 4
months Present version: 6.1
2D game engine - example
Hints: Follow the simple game construction
example in the next slides From that, infer some basic features your
game engine must present Check the material at
http://www.gamemaker.nl Build your requirements
2D game engine – example
WARNING: Your project cannot be too complex –
otherwise you will not complete the required steps in time
Your project cannot be too simple – it MUST keep the whole team busy, and it MUST be such that a smaller team could not complete it
Gamemaker
A maze game
Gamemaker
Graphic elements (“sprites”) – wall
Gamemaker
Graphic elements (“sprites”) – goal
Gamemaker
Graphic elements (“sprites”) – agent
Gamemaker
Objects – wall (no associated event)
Gamemaker
Objects – goal
Gamemaker
Objects – agent(I): move according to arrows
Gamemaker
Objects – agent(II): grid alignment
Gamemaker
Objects – agent(III): stop when hitting wall
Gamemaker
Rooms:
Gamemaker
Rooms:
Game engines
Additional information:
Game Engine Anatomy 101 – http://www.extremetech.com/article2/0,3973,594,00.asp
Your lecturer Your teaching assistants http://www.ime.usp.br/~lidet
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