phaser/README.md

Index

• About
• What's New?
• Getting Started
• Change Log
• How to Build
• Koding
• Bower / NPM
• jsDelivr
• Requirements
• Build Files
• Learn By Example
• Features
• Road Map
• Mighty Editor
• Contributing
• Bugs?
• License

Phaser 2.2.2

Phaser is a fast, free and fun open source game framework for making desktop and mobile browser HTML5 games. It uses Pixi.js internally for fast 2D Canvas and WebGL rendering.

Version: 2.2.2 "Alkindar" - Released: in development

By Richard Davey, Photon Storm

• View the Official Website
• Follow on Twitter
• Join the Forum
• StackOverflow tag: phaser-framework
• Source code for 400+ Phaser Examples or browse them online
• View the growing list of Phaser Plugins
• Read the documentation online
• Join our #phaserio IRC channel on freenode
• Subscribe to the Phaser Newsletter and we'll email you when new versions are released.
• Please help support our work via Gittip

Welcome to Phaser and What's new in 2.2.2?

Happy coding everyone! I hope to see you on the forums.

Getting Started Guides

We have a Getting Started Guide which covers all you need to begin developing games with Phaser. From setting up a web server to picking an IDE. If you're new to HTML5 game development, or are coming from another language like AS3, then we recommend starting there.

We wrote a comprehensive How to Learn Phaser guide for GameDevTuts+ which covers finding tutorials, examples and support.

The Game Mechanic Explorer is a great interactive way to learn how to develop specific game mechanics in Phaser. Well worth exploring once you've got your dev environment set-up.

Finally the list of community authored Phaser Tutorials is growing fast!

Change Log

Version 2.2.2 - "Alkindar" - in development

New Features

• Phaser.Loader now supports BLOB urls for audio files (thanks @aressler38 #1462)
• Line.reflect will calculate the reflected, or outgoing angle of two lines. This can be used for Body vs. Line collision responses and rebounds.
• Line.normalAngle gets the angle of the line normal in radians.
• Line.normalX and Line.normalY contain the x and y components of the left-hand normal of the line.
• Line.fromAngle will sets this line to start at the given x and y coordinates and for the segment to extend at angle for the given length.

Updates

• TypeScript definitions fixes and updates (thanks @clark-stevenson @Schmavery)
• DOM.visualBounds now includes scroll bars (#1429)
• The new fixed time-step code has been more carefully linked to Pixi transform updates. This should finally put a stop to the tunneling issues that were being reported.
• Tween.stop fired a different set of onComplete parameters to Tween.update. Both now dispatch `onComplete(target, tween)`` as the parameters in that order (thanks @P0rnflake #1450)
• Removed redundant tolerance parameter from Rectangle.intersects (thanks @toolness #1463)
• Phaser.Graphics.drawCircle now overrides PIXI.drawCircle which means the docs are now correct re: diameter not radius (thanks @ethankaminski #1454)
• Device.webAudio check inversed to avoid throwing a warning in Chrome.
• Mouse.mouseMoveCallback is flagged as deprecated.
• Remove tw and th init from TilemapLayer (thanks @nextht #1474)
• Particles.Arcade.Emitter.makeParticles now checks the given quantity value against Emitter.maxParticles. If quantity is more than maxParticles then the maxParticles value is used instead.

Bug Fixes

• Fix / double-copy for Safari tilemap bug when rendering with delta scrolling. This fixes tilemaps not appearing to update on Safari OS X and iOS specifically (thanks @pnstickne #1498)
• Tween.delay, Tween.repeat and Tween.yoyo will no longer throw an error if called before a TweenData object has been created (via Tween.to or Tween.from) (thanks @SomMeri #1419)
• The click trampoline added for IE prevented Chrome for Android from being able to launch Full Screen mode with the default parameters for ScaleManger#startFullScreen (the desktop version of Chrome was not affected.). This is now fixed and additional compatibility settings (clickTrampoline) that can be used to configure when such is used. By default the 'when-not-mouse' mode is only enabled for Desktop browsers, where the primary input is ubiquitously a mouse. There are no known breaking compatibility changes - the Full Screen should be initiatable in Chrome for Android as it was in 2.1.x. The default Android browser does not support Full Screen (thanks @pnstickne)
• TilemapParser now checks for image collections, avoiding crashes. These would arise with maps exported from the new release of Tiled (thanks @paul-reilly #1440)
• Group.replace could still access newChild.parent after it was set to undefined. This unifies the approach (thanks @pnstickne #1410 #1417)
• P2.postBroadphaserHandler updated to avoid skipping final 2 pairs.
• The P2 World constructor wouldn't let you use your own config unless you specified both the gravity and broadphase. Now allows one or both (thanks @englercj #1412)
• The RandomDataGenerator could be seeded with an array of values. However if the array contained a zero it would stop seeding from that point (thanks @jpcloud @pnstickne #1456)
• Added extra checks to Sound.play to stop it throwing DOM Exception Error 11 if the sound.readyState wasn't set or the sound was invalid. Also wrapped stop()`` call in a try catch`.
• Time.reset would incorrectly reset the _started property, now maps it to Time.time (thanks @XekeDeath #1467)
• Fix floating point inaccuracy in Tween easing edge cases (thanks @jounii #1492)
• Simplified call to updateTransform - unified and verified fix for #1424 #1502
• Phaser.Signal was causing a CSP script-src violations in Cordova and Google Chrome Apps (thanks @elennaro #1494)
• Added Events.onEnterBounds to the destroy method (thanks @legendary-mich #1497)

Pixi.js 2.2.0 Updates

• The strip class has now three extra properties, canvasPadding, paddingX, and paddingY : @darionco
• Added mipmap option to to textures.
• Added the ability to use GL_TRIANGLES when rendering Strips @darionco
• Added the ability to tint the Graphics.
• Fixed Y-flipped mask issue on render texture.
• Fixed the issue where you could an alpha that is more than one and it would.
• Fixed text issues when using accents.
• Fixed sprite caching not clearing the previous cached texture : @kambing86
• Fixed arcTo issues.
• Vertex buffer and and vertex shader optimisation and reduced memory footprint on the tint and alpha : @bchevalier
• Applied the new generic updateTransform to spritebatch : @kambing86

For details about changes made in previous versions of Phaser see the full Change Log at https://github.com/photonstorm/phaser/blob/master/CHANGELOG.md

How to Build

We provide a fully compiled version of Phaser in the build folder, in both plain and minified formats.

You will also find custom builds in the build\custom folder, that split phaser up into components.

We also provide a Grunt script that will build Phaser from source.

Run grunt to perform a default build to the dist folder.

If you replace Pixi or p2 then run grunt replace to patch their UMD strings so they work properly with Phaser and requireJS.

Note: Some of you may not be aware, but the phaser.min.js file in the build folder contains both Arcade Physics and P2 Physics bundled in. If you only need Arcade Physics then you can use build\custom\phaser-arcade-physics.min.js instead. This will save you 180KB from the minified file size.

Koding

You can clone the Phaser repo in Koding and then start editing and previewing code right away using their web based VM development system.

Bower / NPM

If you use bower you can install phaser with:

bower install phaser

If you use NPM you can install phaser with:

npm install phaser

Nice and easy :)

jsDelivr

Phaser is now available on jsDelivr - a "super-fast CDN for developers and webmasters." You can include the following in your html:

//cdn.jsdelivr.net/phaser/2.2.2/phaser.min.js

or the non-minified version:

//cdn.jsdelivr.net/phaser/2.2.2/phaser.js

More details on the jsDelivr Phaser page.

Requirements

Games created with Phaser require a modern web browser that supports the canvas tag. This includes Internet Explorer 9+, Firefox, Chrome, Safari and Opera. It also works on mobile web browsers including stock Android 2.x browser and above and iOS5 Mobile Safari and above. But as always be aware of browser limitations. Not all features of Phaser work on all browsers.

IE9

If you need to support IE9 or Android 2.x and want to use P2 physics then you must use the polyfill found in the resources/IE9 Polyfill folder. If you don't require P2 Physics (or don't care about IE9!) then you don't need this polyfill.

JavaScript and TypeScript

Phaser is developed in JavaScript. We've made no assumptions about how you like to code your games, and were careful not to impose any form of class / inheritance / structure upon you. So you won't find it split into require modules or pull in 3rd party npm packages for example. That doesn't mean you can't, it just means we don't force you to do so. If you're a requireJS user you'll find a new template in the resources\Project Templates folder just for you.

If you code with TypeScript you'll find a comprehensive definitions file inside the typescript folder and tutorials on getting started on our site. This definitions file is for TypeScript 1.0+. If you are using an earlier version of TypeScript (i.e. 0.9.5) you will need to include the WebGL definitions into your project first. This file isn't included with Phaser.

Build Files and Custom Builds

The build folder contains the pre-built packaged versions of Phaser.

Phaser is 153 KB gzipped and minified when including both Arcade Physics and the full P2 Physics engine.

If you don't require P2 you can save yourself nearly 200 KB from the minified size and instead use the phaser-arcade-physics.min.js file found inside the build/custom folder. This version is only 115 KB gzipped and minified.

If you don't need any physics system at all, or are implementing your own, there is an even smaller build: phaser-no-physics.min.js in the custom folder that is only 102 KB gzipped and minified. Please note that this build doesn't include Tilemaps or Particle Emitter support either, as both rely on Arcade Physics.

You can create your own custom build of Phaser by looking at the grunt options and manifests in the tasks folder.

Learn By Example

Ever since we started Phaser we've been growing and expanding our extensive set of Examples. Currently over 400 of them!

They used to be bundled in the main Phaser repo, but because they got so large and in order to help with versioning we've moved them to their own repo.

So please checkout https://github.com/photonstorm/phaser-examples

Here you'll find an ever growing suite of Examples. Personally I feel that developers tend to learn better by looking at small refined code examples, so we created hundreds of them, and create new ones to test new features and updates. Inside the examples repo you'll find the current set. If you write a particularly good example then please send it to us.

The examples need to be run through a local web server (in order to avoid file access permission errors from your browser). You can use your own web server, or start the included web server using grunt.

Using a locally installed web server browse to the examples folder:

examples/index.html

Alternatively in order to start the included web server, after you've cloned the repo, run npm install to install all dependencies, then grunt connect to start a local server. After running this command you should be able to access your local webserver at http://127.0.0.1:8000. Then browse to the examples folder: http://127.0.0.1:8000/examples/index.html

There is a 'Side View' example viewer as well. This loads all the examples into a left-hand frame for faster navigation. And if you've got php installed into your web server you may want to try debug.php, which provides a minimal examples list and debug interface.

You can also browse all Phaser Examples online.

Features

WebGL & Canvas

Phaser uses both a Canvas and WebGL renderer internally and can automatically swap between them based on browser support. This allows for lightning fast rendering across Desktop and Mobile. When running under WebGL Phaser now supports shaders, allowing for some incredible in-game effects. Phaser uses and contributes towards the excellent Pixi.js library for rendering.

Preloader

We've made the loading of assets as simple as one line of code. Images, Sounds, Sprite Sheets, Tilemaps, JSON data, XML and JavaScript files - all parsed and handled automatically, ready for use in game and stored in a global Cache for Sprites to share.

Physics

Phaser ships with our Arcade Physics system, Ninja Physics and P2.JS - a full body physics system. Arcade Physics is for high-speed AABB collision only. Ninja Physics allows for complex tiles and slopes, perfect for level scenery, and P2.JS is a full-body physics system, with constraints, springs, polygon support and more.

Sprites

Sprites are the life-blood of your game. Position them, tween them, rotate them, scale them, animate them, collide them, paint them onto custom textures and so much more! Sprites also have full Input support: click them, touch them, drag them around, snap them - even pixel perfect click detection if needed.

Groups

Group bundles of Sprites together for easy pooling and recycling, avoiding constant object creation. Groups can also be collided: for example a "Bullets" group checking for collision against the "Aliens" group, with a custom collision callback to handle the outcome.

Animation

Phaser supports classic Sprite Sheets with a fixed frame size, Texture Packer and Flash CS6/CC JSON files (both Hash and Array formats) and Starling XML files. All of these can be used to easily create animation for Sprites.

Particles

An Arcade Particle system is built-in, which allows you to create fun particle effects easily. Create explosions or constant streams for effects like rain or fire. Or attach the Emitter to a Sprite for a jet trail.

Camera

Phaser has a built-in Game World. Objects can be placed anywhere within the world and you've got access to a powerful Camera to look into that world. Pan around and follow Sprites with ease.

Input

Talk to a Phaser.Pointer and it doesn't matter if the input came from a touch-screen or mouse, it can even change mid-game without dropping a beat. Multi-touch, Mouse, Keyboard and lots of useful functions allow you to code custom gesture recognition.

Sound

Phaser supports both Web Audio and legacy HTML Audio. It automatically handles mobile device locking, easy Audio Sprite creation, looping, streaming and volume. We know how much of a pain dealing with audio on mobile is, so we did our best to resolve that!

Tilemaps

Phaser can load, render and collide with a tilemap with just a couple of lines of code. We support CSV and Tiled map data formats with multiple tile layers. There are lots of powerful tile manipulation functions: swap tiles, replace them, delete them, add them and update the map in realtime.

Device Scaling

Phaser has a built-in Scale Manager which allows you to scale your game to fit any size screen. Control aspect ratios, minimum and maximum scales and full-screen support.

Plugin system

We are trying hard to keep the core of Phaser limited to only essential classes, so we built a smart Plugin system to handle everything else. Create your own plugins easily and share them with the community.

Mobile Browser

Phaser was built specifically for Mobile web browsers. Of course it works blazingly fast on Desktop too, but unlike lots of frameworks mobile was our main focus. If it doesn't perform well on mobile then we don't add it into the Core.

Developer Support

We use Phaser every day on our many client projects. As a result it's constantly evolving and improving and we jump on bugs and pull requests quickly. This is a living, breathing framework maintained by a commercial company with custom feature development and support packages available. We live and breathe HTML5 games.

Battle Tested

Phaser has been used to create hundreds of games, which receive millions of plays per month. We're not saying it is 100% bug free, but we use it for our client work every day, so issues get resolved fast and we stay on-top of the changing browser landscape.

Road Map

Here are some of the features planned for future releases. Not all features are promised to be delivered, and no timescale is put against any of them either.

Version 2.3 ("Tarabon")

• New parallel asset loader (already started in dev branch)
• Enhance the State Management, so you can perform non-destructive State swaps and persistence.
• Updated Text handling
• Look carefully at the internal structure of Phaser to avoid method repetition (such as Sprite.crop and Image.crop), investigate using mixins to help reduce overall codebase size.
• Restore Math.interpolateAngles and Math.nearestAngleBetween
• Scene Manager - json scene parser.
• Touch Gestures.
• Adjust how Pointers and Interactive Objects work. Allow an IO to be flagged as "on click only", so it doesn't ever get processed during normal Pointer move events (unless being dragged)
• Allow multiple drag items - no longer bind just 1 to a Pointer
• Allow Groups to have Priority IDs too and input disable entire Groups and all children (let it flow down the chain)
• Allow Groups to be InputEnabled? Dragging a Group would be really useful.
• Cache to localStorage using If-Modified-Since. See github request
• Allow for complex assets like Bitmap Fonts to be stored within a texture atlas.

Version 2.4

• Ability to control DOM elements from the core game and layer them into the game.
• Game parameters stored in Google Docs.
• Optimised global Animation manager to cut down on object creation.
• Flash CC HTML5 export integration.
• Massively enhance the audio side of Phaser. Take more advantage of Web Audio: echo effects, positional sound, etc.
• DragonBones support.

Phaser 3

Development has now begun on Phaser 3. At the moment it's still in the very early stages. We are asking for suggestions and feedback in this forum thread so be sure to add your voice.

We are currently experimenting with an ES6 based module system and we're keen for Phaser 3 to use as many native ES6 features as possible. It will be a significant refactoring of the code base, but never at the expense of features or ease-of-use. Development will be made public when the time is right.

We don't anticipate a release until Summer 2015. Phaser 2 still has roadmap features left that we'd like to implement, but after 2.3 it will be in maintenance mode as we work on Phaser 3.

If you are an exceptional JavaScript developer and would like to join the Phaser 3 development team then let us know. We have a limited budget available to pay towards your time.

Mighty Editor - A Visual Phaser Game Editor

MightyEditor is a browser-based visual Phaser game editor. Create your maps with ease, position objects and share them in seconds. It also exports to native Phaser code. Excellent for quickly setting-up levels and scenes.

Contributing

We now have a full Contributors Guide which goes into the process in more detail, but here are the headlines:

• If you find a bug then please report it on GitHub Issues or our Support Forum.

• If you have a feature request, or have written a game or demo that shows Phaser in use, then please get in touch. We'd love to hear from you! Either post to our forum or email: rich@photonstorm.com

• If you issue a Pull Request for Phaser, please only do so againt the dev branch and not against the master branch.

• Before submitting a Pull Request please run your code through JSHint to check for stylistic or formatting errors. To use JSHint, run grunt jshint. This isn't a strict requirement and we are happy to receive Pull Requests that haven't been JSHinted, so don't let it put you off contributing, but do know that we'll reformat your source before going live with it.

• Before contributing, please read the code of conduct.

Bugs?

Please add them to the Issue Tracker with as much info as possible, especially source code demonstrating the issue.

"Being negative is not how we make progress" - Larry Page, Google

License

Phaser is released under the MIT License.