I've developed a game using this great library. Thanks Julian for developing Ruby Gosu.
Its name is Tron 3000, and it's available at http://tron3000.eltorbellino.com
for Windows, Mac & Linux.
This is a deathmatch-style remake of classic Tron game, for multiple players on the same computer, or for playing against artificial intelligence players. Controls are so simple. There are lots of items to pick up, which make the game very addictive:
- Green bubbles provide weapons, which can be used using the "fire" button. There are missiles available, and so on.
- Red bubbles provide temporal skills, such as high speed.
- Blue bubbles have immediate effects, such as cleaning the screen.
Everytime an opponent is killed, you get one point, but if you kill yourself, you'll lose one point! The player with more points wins.
As the game starts, a demo game is played background. You can change video resolution and go fullscreen in the "options" menu. In order to play, you have to create some players in the "players" menu, either human or AI players. Then you're ready to start a new game!
For the geeks, the game allows creating new weapons or AI profiles by including new extensions under the 'extensions' folder, such as:
- new_extension (name for the extension)
* new_item.wav (sound played when picking the item -- optional)
* new_item.png (icon for the item -- optional)
* new_item.rb (code for the item)
Items are quite easy to code. The following example defines a skill which removes the trail that is left after a player (by redefining the "trail" method that Motorbike class uses):
def trail; end
The next example creates an action which clears all the screen. Like in the previous one, code is executed under the Motorbike class:
Check more items under tron3000/code/items. If you also want to add a new AI profile to your extension, just create it like tron3000/extensions/new_extensions/code/bots/my_new_killer_bot.rb and you'll be able to select it when creating new players during the game. Check the existing AI profile at tron3000/code/bots/machine.rb. After you have created an extension, you can activate it in the "extensions" menu of the game.
A frequently asked question about Gosu is how to draw on textures, so you can check my implementation at tron3000/code/core/arena.rb, although it is pure OpenGL for some reasons. Game performance is just OK, so I hope Ruby 1.9 improves it, though I've not tried it yet. So Gosu for Ruby 1.9 would be very appreciated :) Also, the Linux version doesn't work on my Ubuntu since the day I added sound support... maybe there's a problem with SDL library.
I hope you like the game.