Frozen ^v0.4.0

What is Frozen?

Frozen is an open-source HTML5 game engine delivering ease-of-use, rapid development through tooling and modularity.

Our goal is to apply techniques used in building modern webapps to game development, such as AMD modules, dependency management, build process, and project scaffolding.

Get Frozen

• Frozen (single file - AMD loader included)
  Development and Production

• Frozen Source (individual modules - bring your own loader or use Dojo)
  Use volo add iceddev/frozen to add it to your project
  or grab the zip: Frozen Source (but don't forget your dependencies)
  Note: We supply a jam package and specify dependencies. Although these should work for game creation using the engine, frozen cannot be built or run with jam deps only

• Or just use the boilerplate!
  Use volo create your_project frozenjs/boilerplate which will scaffold out a new project for you and install all dependencies

Documentation

Documentation is available at http://frozenjs.com/docs/

Examples

Play examples at http://frozenjs.com/examples/
Examples source code can be found at https://github.com/iceddev/frozen/tree/master/examples

Source

Source available on github: https://github.com/iceddev/frozen

Browser Support

We have tested in:

• Chrome 27 & 29-canary
• Firefox 21, Aurora 23.0a2 & Nightly 24.0a1
• IE10 (sound with supported codecs)
• Safari 6.0.3
• Chrome for Android 27 & Beta 28 (limited sound support) - Suggestion: in chrome://flags, turn on "Disable gesture requirement for media playback" & "Enable WebAudio"
• Firefox for Android 21, Beta 22, Aurora 23.0a2 & Nightly 24.0a1 (Doesn't load some Box2d examples - unsure why)
• PhantomJS 1.9.1

Most modern browsers should support this game engine if they support requestAnimationFrame or canvas, but YMMV with sounds

Rapid Development Through Tooling

Our Frozen Box2d Editor is available at http://phated.github.com/frozen-editor/

Technologies behind Frozen

While builds of Frozen may be tiny, we use some libraries and technologies behind the scenes as to not reinvent the wheel.

These technologies include:

• Node.js and npm - used for dependecy mangement for our build process and development workflow
• Grunt - task runner for our development workflow, and allows for a single entry point into development configuration
• Volo - clientside dependency management and project scaffolding tool
• Lo-Dash - low-level utility library used inside the library
• Hammer.js - multi-touch library used for mouse/touch/pointer event normalization and gestures
• dcl - used for generating constructors and supplying AOP convenience methods
• Box2d - used for physics calculations in games
• Dojo - used for AMD loader and some utility modules inside the library, Dojo build process is used to build a single JS file
• JSDoc - generates documentation for code
• Jasmine - tests all use Jasmine
• AMD - all modules are written with AMD and the single layer includes an AMD module loader

Development

Dependencies

All development tasks depend on having dependencies installed.

Use npm install to get all the build process dependencies Use volo add to get all the library dependencies

Building the dist/frozen layer

grunt build to lint, test, doc, and run dojo build process to build the single layer

Generating the docs

grunt docs will lint and generate docs

Running the tests

grunt test to lint, run tests in PhantomJS and open your default browser at the test URL

Linting the project

grunt jshint:all to lint the project

Building when files change

grunt watch:all to execute grunt build whenever a file changes

Release Notes

^v0.4.0

Breaking Changes

• Due to performance reasons, InputManager.mousemove only fires during mousedown or touchstart - see breakouts example for workaround
• Added frozen/TouchAction instead of using frozen/MouseAction - used when InputManager.emulateMouse is false
• InputManager.handleTouch and InputManager.handleMouse removed, replaced with InputManager.emulateMouse which determines if MouseAction or TouchAction should be used
• Either InputManager.mouseAction or InputManager.touchAction will be active at one time (depending on state of InputManager.emulateMouse)
• InputManager event handling methods no longer check if a point is inside canvas
• InputManager.keyActions switched from array to object (only breaking if you iterate over the collection)
• Removed Box.destroyJoint because it was deprecated in last release
• Created a frozen/box2d/listeners/Contact module to contain contact listener callbacks and other logic - move custom contact handlers to this object
• Remove dojo/dom, dojo/dom-geometry and dojo/dom-style modules from hard dependencies to use straight DOM instead (modules will be missing from built layer)
• Remove dojo/_base/lang in favor of Lo-Dash (module will be missing from built layer)
• Removed update function from frozen/reiner/Creature - replaced with updateDirection and updateAnimations functions

New Features

• Add Bower support
• Add dependencies on Lo-Dash and Hammer.js
• Touch/Mouse/Pointer event normalization with Hammer.js
• Gesture support with Hammer.js
• InputManager.hammer is an instance of Hammer.js
• InputManager.on can be used for binding new events
• InputManager.insideCanvas can be used to check a point against the InputManager's canvas
• New methods for adding or removing multiple bodies or joints in frozen/BoxGame: addBodies, removeBodies, addJoints, removeJoints
• New methods for flipping images in frozen/ResourceManager: flipImage, flipImageX, flipImageY
• Added preSolve to contact listener
• Added box2d sprite, gesture, ragdoll physics, and breakouts examples

Non-Breaking Changes

• Update Examples to use features of 0.3.0/0.4.0
• frozen/utils/removeExtension now uses a regex for removing the extensions, limited to 4 characters after the .
• require.toUrl(filename) is now used inside the loadSound and loadImage functions, instead of the plugins
• Fix for WebAudio on iOS
• On mobile which requires touch, interally switch to Audio.play() instead of Audio.load() to avoid double loading
• Use dcl's advice.before to wire up GameCore.beforeUpdate

Deprecations

• GameCore.preUpdate - Deprecated in favor of beforeUpdate
• InputManager.handleMouse (already removed) - Mouse is always handled, use emulateMouse to specify how to handle it
• InputManager.handleTouch (already removed) - Touch is always handled, use emulateMouse to specify how to handle it
• InputManager.mouseUp - Use the lowercase name instead - same syntax as normal event handling
• InputManager.mouseDown - Use the lowercase name instead - same syntax as normal event handling
• InputManager.mouseMove - Use the lowercase name instead - same syntax as normal event handling
• InputManager.touchStart - Use the lowercase name instead - same syntax as normal event handling
• InputManager.touchEnd - Use the lowercase name instead - same syntax as normal event handling
• InputManager.touchMove - Use the lowercase name instead - same syntax as normal event handling
• InputManager.keyPressed - Use keydown instead - same syntax as normal event handling
• InputManager.keyDown - Use the lowercase name instead - same syntax as normal event handling
• InputManager.keyReleased - Use keyup instead - same syntax as normal event handling
• InputManager.getMouseLoc - Deprecated in favor of normalizePoint function (Same functionality, different name)

^v0.3.0

Breaking Changes

• Removed previously deprecated methods and properties
• Removed Node 0.6 support for the build process
• frozen/sounds/Sound was a plugin, but is now the base object of other Sounds and frozen/sounds/AudioBase was removed
• frozen/sounds/Sound plugin was moved to frozen/plugins/sound
• frozen/box2d/Entity moved to frozen/box2d/entities/Entity
• frozen/box2d/RectangleEntity moved to frozen/box2d/entities/Rectangle
• frozen/box2d/CircleEntity moved to frozen/box2d/entities/Circle
• frozen/box2d/PolygonEntity moved to frozen/box2d/entities/Polygon
• frozen/box2d/MultiPolygonEntity moved to frozen/box2d/entities/MultiPolygon

New Features

• Auto-selection of Audio extension if no extension is specified
• loadSound and loadImage plugins now use require.toUrl() to generate a path to your resources
• Added .jamignore file
• Box.setAngularVelocity function added to set the angular velocity on an entity
• Tests added for Sounds, BoxGame, and Sprite
• Added frozen/box2d/entities which returns a map of entity types
• Added frozen/box2d/joints which returns a map of joint types
• BoxGame.addBody, BoxGame.removeBody, BoxGame.addJoint, BoxGame.removeJoint methods added for convenience

Non-Breaking Changes

• Made all the examples adhere to the linting rules of the rest of the project
• Move linting declarations to .jshintrc to allow for JSHint being run in the directory standalone
• Update Grunt to ~0.4.1 and add/update all the dependencies in package.json
• Modified the Gruntfile to work with new plugins and define more tasks for convenience
• Removed Node 0.6 from tested environments
• Updated examples that were using deprecated methods
• Cleanup event handler usage on Audio implementations
• Rearranged the specs/ file structure to match src/
• Implement the dcl Cleanup API for InputManager to remove event handlers on destruction
• Add declaredClass to entities and joints

Deprecations

• Box.destroyJoint has been deprecated in favor of Box.removeJoint

Full changelog available: Changelog

License

The MIT License (MIT)

Copyright (c) 2013 Iced Development, LLC

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.