Fun with Ruby games using Gosu
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Slides for javier ramirez's talk at EuRuKo 2009
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Fun with Ruby games using Gosu
- 1. EuRuKo presents Javier Ramírez (javier@formatinternet.com) * in * Fun with Ruby (and without r***s) Program your own games with Gosu
- 2. the characters Ruby ................. as The Damsel Hardware ............ as The Villain Gosu ...................... as The Hero Chipmunk ........ as The Scientist Rubyscript2exe ........ as Himself
- 3. why games work rest play sleep improve, have fun
- 4. why ruby because i can! less code, less clutter easy to try out
- 5. why me HTML PASCAL / BASIC C/C++ JAVA RUBY ASP DBase LOGO SQL PHP VBasic JavaScript Assembler
- 6. Non-technical considerations concept ● game specs / core design ● gameplay/game mechanics ● balance ● look and feel ● More at “Game Architecture and Design: A New Edition” by Andrew Rollings & David Morris
- 7. Part I what's in a game? (game development 101)
- 9. One ring to rule them all
- 10. Game Development Abstraction 3D games are the same, just harder
- 12. the living game
- 13. Development Components main loop / event loop ● game logic: levels, collisions, AI ... ● stateless images (tiles / models) ● stateful images (sprites / models) ● sound FX and music ●
- 14. Part II when Ruby met Gosu
- 15. about by Julian Raschke and Jan Lücker Gosu ( 고수 ): High Hand - Leader C++ + Ruby Bindings http://code.google.com/p/gosu/ (http://tinyurl.com/euruko-gosu)
- 16. design rationale Bloatfree: Gosu aims to contain everything that is necessary to write a game in clean C++ or Ruby code, yet not much more. Reality-driven: Everything in Gosu exists for the same single reason: It was necessary for an existing project. Nothing was, and will ever be, added out of boredom.
- 17. game demo
- 18. source code http://tinyurl.com/euruko-games http://code.google.com/p/eurukuest (http://tinyurl.com/eurukuest)
- 19. Gosu::Window
- 20. Gosu::Image load individually or tiled drawing can be rotated / scaled supports z-index can use Rmagick objects
- 21. Gosu::Sample & Gosu::Song full playback control volume, speed, pause, resume, stop, pan looping supported midi are better if converted to XM
- 22. Gosu::Font can be a system font or a file easy to check the real width supports rotation and scaling
- 23. code walkthrough
- 24. about by Scott Lembcke A 2D rigid body physics library, designed with 2D video games in mind. http://code.google.com/p/chipmunk-physics (http://tinyurl.com/euruko-chipmunk)
- 25. about
- 26. about
- 28. Part III your 15 minutes of fame
- 29. doing it is just half the fun
- 30. tar2rubyscript by Erik Veenstra RBA file: init.rb => tar + base64 + comments
- 31. rubyscript2exe by Erik Veenstra packages ruby, the script and all dependencies together into an executable file. works on windows, linux, OSx
- 32. rubyscript2exe First Step: it runs the application, checking for all the required gems and scripts, creating a list of dependencies to include in the executable
- 33. rubyscript2exe The “Environment Embedding Executable” gzips all the dependencies and attaches the file to a copy of eee
- 34. muhahahahaha! http://formatinternet.com javier@formatinternet.com http://twitter.com/supercoco9 http://www.workingwithrails.com/ person/5987-javier-ramirez