https://github.com/aduros/hydra

An HTML5 game engine for the many faces of mobile WebKit.
https://github.com/aduros/hydra

Last synced: 26 days ago
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An HTML5 game engine for the many faces of mobile WebKit.

• Host: GitHub
• URL: https://github.com/aduros/hydra
• Owner: aduros
• License: mit
• Created: 2010-10-18T07:33:46.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2013-11-06T05:11:04.000Z (about 11 years ago)
• Last Synced: 2024-10-05T15:01:15.691Z (about 1 month ago)
• Language: JavaScript
• Homepage:
• Size: 10.2 MB
• Stars: 64
• Watchers: 9
• Forks: 13
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
Hydra

=====

Hydra is a Javascript game engine for mobile browsers. It's been used in several

commercial HTML5 games:

* [Block Dream](http://aduros.emufarmers.com/html5/blockdream) ([source](http://github.com/aduros/hydra/tree/master/projects/tetris/))

* [Fruit Link](http://aduros.emufarmers.com/html5/fruitlink) ([source](http://github.com/aduros/hydra/tree/master/projects/jam/))

* [Snow Bound](http://aduros.emufarmers.com/html5/snowbound) ([source](http://github.com/aduros/hydra/tree/master/projects/ski/))

* [Blast Effect](http://aduros.emufarmers.com/html5/blasteffect) ([source](http://github.com/aduros/hydra/tree/master/projects/chain/), WebKit only for now)

* [Playstore Games](http://playstore.vn/) (Who Wants to be a Millionaire, and Vietnamese card games)

Status

------

Work on Hydra has stopped, but the lessons learned on this project are going toward

[Flambe](https://github.com/aduros/flambe), a framework for rapid development of mobile and desktop

games.

Design

------

Hydra aims to be fast:

* Animations are implemented as CSS transitions, which can be hardware accelerated.

* All game updates are performed on a single setInterval callback.

* Games are compiled with Google's Closure Compiler in "advanced" mode, allowing aggressive inlining and dead-code elimination.

Hydra also aims to be functional:

* Animations can programmatically be started, paused, and sequenced together.

* Games are composed from scenes, entities (which live in scenes) and tasks (which act upon entities).

* Has the usual collection of utility functions and classes, supplemented by the massive Closure Library.

* Needless abstractions are avoided, you should still know how to work with the DOM and skin your game with CSS.

Platforms

---------

Hydra currently has three heads:

* iOS 3+ (iPhone, iPod touch, iPad)

* Android 2.1+

* Desktop browsers: Chrome, Safari, Firefox, Opera

Building

--------

Hydra is still undocumented, filled with broken glass, and will eat your first

born child. If you still want to try to tame it:

Download the Closure submodule:

    git submodule init

    git submodule update

Use [Rake](http://rake.rubyforge.org/) to build an example project:

    cd projects/chain

    rake

The "chain" (Blast Effect) and "ski" (Snow Bound) games are probably the best

places to learn your way around by example.

`rake` by itself will build the entire game for all supported browsers. For

development, you can use `rake js` to only build for the browser specified by

`DEFAULT_TARGET`. `rake css` will build only the CSS.