Phaser - HTML5 Game Framework

Phaser is a fast, free, and fun open source HTML5 game framework that offers WebGL and Canvas rendering across desktop and mobile web browsers. Games can be compiled to iOS, Android and native apps by using 3rd party tools. You can use JavaScript or TypeScript for development.

Along with the fantastic open source community, Phaser is actively developed and maintained by Photon Storm. As a result of rapid support, and a developer friendly API, Phaser is currently one of the most starred game frameworks on GitHub.

Thousands of developers from indie and multi-national digital agencies, and universities worldwide use Phaser. You can take a look at their incredible games.

Visit: The Phaser website and follow on Twitter (#phaserjs)
Learn: API Docs, Support Forum and StackOverflow
Code: 1700+ Examples (source available in this repo)
Read: The Phaser World Newsletter
Chat: Discord and Slack
Extend: With Phaser Plugins
Be awesome: Support the future of Phaser

Grab the source and join the fun!

15th January 2020

We're excited to announce the release of Phaser 3.22, the first of many in the year 2020. The main focus of 3.22 is all the work we've done on Matter Physics integration. Matter has been supported in Phaser since the first release, yet there were lots of things we wanted to do with it to make development life easier. 3.22 brings all of these to the front, including powerful new visual debugging options such as rendering contacts, velocity, the broadphase grid, sensors, joints and more. Matter also now has 100% JSDoc and TypeScript coverage and I spent a long time rebuilding the TypeScript defs by hand, in order to make them as accurate as possible.

As well as docs and defs there are stacks of handy new methods, including intersection tests such as intersectPoint, intersectRay, overlap and more. New Body level collision callbacks allow you to filter collided pairs a lot more quickly now, combined with new collision events and data type defs to give you all the information you need when resolving. There are now functions to create bodies from SVG data, JSON data or Physics Editor data directly, new Body alignment features and of course bug fixes.

It's not all about Matter Physics, though. Thanks to the community, there are new Math Distance functions such as Chebyshev, Snake and Squared Points. You can now tint particles as they're emitted, Physics Groups finally let you use your own creation and removal callbacks and plenty more besides. There are, of course, lots of bug fixes too and I've done my best to address some of the most important ones. The documentation has improved yet again and with every release the TypeScript defs get stronger and stronger. So, as usual, please do spend some time digging through the Change Log. I assure you, it's worth while :)

With 3.22 released I will now be taking some time to carry on with Phaser 4 development, while planning out the 3.23 release as well. Even though Phaser 4 is in build I will fully support Phaser 3 for the foreseeable future. You can follow the development progress of both versions on the Phaser Patreon.

As usual, I'd like to send a massive thank-you to everyone who supports Phaser on Patreon (and now even GitHub Sponsors, too!) Your continued backing keeps allowing me to work on Phaser full-time and this great new releases is the very real result of that. If you've ever considered becoming a backer, now is the perfect time!

If you'd like to stay abreast of developments then I publish my Developer Logs in the Phaser World newsletter. Subscribe to stay in touch and get all the latest news from the core team and the wider community.

You can also follow Phaser on Twitter and chat with fellow Phaser devs in our Discord and Slack channels.

Phaser 3 wouldn't have been possible without the fantastic support of the community and Patreon. Thank you to everyone who supports our work, who shares our belief in the future of HTML5 gaming, and Phaser's role in that.

Happy coding everyone!

Cheers,

Rich - @photonstorm

Because Phaser is an open source project, we cannot charge for it in the same way as traditional retail software. What's more, we don't ever want to. After all, it's built on, and was born from, open web standards. It's part of our manifesto that the core framework will always be free, even if you use it commercially, as many of you do.

You may not realize it, but because of this, we rely 100% on community backing to fund development.

Those funds allow Phaser to improve, and when it improves, everyone involved benefits. Your support helps secure a constant cycle of updates, fixes, new features and planning for the future.

There are other benefits to backing Phaser, too:

We use Patreon to manage the backing and you can support Phaser from $1 per month. The amount you pledge is entirely up to you and can be changed as often as you like. Patreon renews monthly, just like Netflix. You can, of course, cancel at any point. Tears will be shed on this end, but that's not your concern.

Extra special thanks to the following companies who's support makes Phaser possible:

• Cerebral Fix
• CrossInstall
• Facebook
• Game Distribution
• GameCommerce
• Mozilla
• Texture Packer
• Twilio
• Y8 Games
• Poki

We publish the Phaser World newsletter. It's packed full of the latest Phaser games, tutorials, videos, meet-ups, talks, and more. The newsletter also contains our weekly Development Progress updates which let you know about the new features we're working on.

Over 140 previous editions can be found on our Back Issues page.

Phaser 3 is available via GitHub, npm and CDNs:

• Clone the git repository via https, ssh or with the GitHub Windows or Mac clients.
• Download as zip
• Download the build files: phaser.js and phaser.min.js

NPM

Install via npm:

npm install phaser

CDN

Phaser is on jsDelivr which is a "super-fast CDN for developers". Include the following in your html:

<script src="//cdn.jsdelivr.net/npm/phaser@3.22.0/dist/phaser.js"></script>

or the minified version:

<script src="//cdn.jsdelivr.net/npm/phaser@3.22.0/dist/phaser.min.js"></script>

API Documentation

Go to https://photonstorm.github.io/phaser3-docs/index.html to read the docs online. Use the drop-down menus at the top to navigate the namespaces, classes and Game Objects lists.

Or, if you wish to run the docs locally you can checkout the phaser3-docs repository and then read the documentation by pointing your browser to the docs/ folder.

The documentation for Phaser 3 is an on-going project. Please help us by searching the Phaser code for any instance of the string [description] and then replacing it with some documentation.

TypeScript Definitions

The TypeScript definitions can be found inside the types folder. They are also referenced in the types entry in package.json.

Depending on your project, you may need to add the following to your tsconfig.json file:

"typeRoots": [
    "./node_modules/phaser/types"
],
"types": [
    "Phaser"
]

We recently published a new Phaser 3 TypeScript Project Template, which you can use to get started with if you like.

The TS defs are automatically generated from the JSDoc comments found in the Phaser source code. If you wish to help refine them then you must edit the Phaser JSDoc blocks directly, not the defs file. You can find more details about the parser we built in the scripts/tsgen folder.

Webpack

We use Webpack to build Phaser and we take advantage of its conditional build flag feature to handle renderer swapping. If you wish to use Webpack with Phaser then please use our Phaser 3 Project Template as it's already set-up to handle the build conditions Phaser needs. Recent changes to our build steps mean you should now be able to use any other packager, like Parcel, without any config changes.

License

Phaser is released under the MIT License.

Tutorials and guides on Phaser 3 development are being published every week.

• Getting Started with Phaser 3 (useful if you are completely new to Phaser)
• Making your first Phaser 3 Game
• The Complete Phaser 3 Game Development course contains over 15 hours of videos covering all kinds of important topics.
• Plus, there are over 700 Phaser tutorials listed on the official website.

Also, please subscribe to the Phaser World newsletter for details about new tutorials as they are published.

Facebook Instant Games

Phaser 3.13 introduced the new Facebook Instant Games Plugin. The plugin provides a seamless bridge between Phaser and version 6.2 of the Facebook Instant Games SDK. Every single SDK function is available via the plugin and we will keep track of the official SDK to make sure they stay in sync.

The plugin offers the following features:

• Easy integration with the Phaser Loader so load events update the Facebook progress circle.
• Events for every plugin method, allowing the async calls of the SDK to be correctly inserted into the Phaser game flow. When SDK calls resolve they will surface naturally as a Phaser event and you'll know you can safely act upon them without potentially doing something mid-way through the game step.
• All Plugin methods check if the call is part of the supported APIs available in the SDK, without needing to launch an async request first.
• Instant access to platform, player and locale data.
• Easily load player photos directly into the Texture Manager, ready for use with a Game Object.
• Subscribe to game bots.
• The plugin has a built-in Data Manager which makes dealing with data stored on Facebook seamless. Just create whatever data properties you need and they are automatically synced.
• Support for FB stats, to retrieve, store and increment stats into cloud storage.
• Save Session data with built-in session length validation.
• Easy context switching, to swap between game instances and session data retrieval.
• Easily open a Facebook share, invite, request or game challenge window and populate the text and image content using any image stored in the Texture cache.
• Full Leaderboard support. Retrieve, scan and update leaderboard entries, as well as player matching.
• Support for in-app purchases, with product catalogs, the ability to handle purchases, get past purchases and consume previously unlocked purchases.
• Easily preload a set of interstitial ads, in both banner and video form, then display the ad at any point in your game, with in-built tracking of ads displayed and inventory available.
• Plus other features, such as logging to FB Analytics, creating short cuts, switching games, etc.

We've 3 tutorials related to Facebook Instant Games and Phaser:

• Getting Started with Facebook Instant Games
• Facebook Instant Games Leaderboards Tutorial
• Displaying Ads in your Instant Games

A special build of Phaser with the Facebook Instant Games Plugin ready-enabled is available on jsDelivr. Include the following in your html:

<script src="//cdn.jsdelivr.net/npm/phaser@3.22.0/dist/phaser-facebook-instant-games.js"></script>

or the minified version:

<script src="//cdn.jsdelivr.net/npm/phaser@3.22.0/dist/phaser-facebook-instant-games.min.js"></script>

The build files are in the git repository in the dist folder, and you can also include the plugin in custom builds.

Source Code Examples

During our development of Phaser 3, we created hundreds of examples with the full source code and assets ready available. These examples are now fully integrated into the Phaser website. You can also browse them on Phaser 3 Labs via a more advanced interface, or clone the examples repo. We are constantly adding to and refining these examples.

Create Your First Phaser 3 Example

Create an index.html page locally and paste the following code into it:

<!DOCTYPE html>
<html>
<head>
    <script src="https://cdn.jsdelivr.net/npm/phaser@3.22.0/dist/phaser-arcade-physics.min.js"></script> 
</head>
<body>

    <script></script>

</body>
</html>

This is a standard empty webpage. You'll notice there's a script tag that is pulling in a build of Phaser 3, but otherwise this webpage doesn't do anything yet. Now let's set-up the game config. Paste the following between the <script></script> tags:

var config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    physics: {
        default: 'arcade',
        arcade: {
            gravity: { y: 200 }
        }
    },
    scene: {
        preload: preload,
        create: create
    }
};

config is a pretty standard Phaser 3 Game Configuration object. We tell config to use the WebGL renderer if it can, set the canvas to a size of 800x600 pixels, enable Arcade Physics, and finally call the preload and create functions. preload and create have not been implemented yet, so if you run this JavaScript code, you will have an error. Add the following after config:

var game = new Phaser.Game(config);

function preload ()
{
    this.load.setBaseURL('http://labs.phaser.io');

    this.load.image('sky', 'assets/skies/space3.png');
    this.load.image('logo', 'assets/sprites/phaser3-logo.png');
    this.load.image('red', 'assets/particles/red.png');
}

function create ()
{
}

game is a Phaser Game instance that uses our configuration object config. We also add function definitions for preload and create. The preload function helps you easily load assets into your game. In preload, we set the Base URL to be the Phaser server and load 3 PNG files.

The create function is empty, so it's time to fill it in:

function create ()
{
    this.add.image(400, 300, 'sky');

    var particles = this.add.particles('red');

    var emitter = particles.createEmitter({
        speed: 100,
        scale: { start: 1, end: 0 },
        blendMode: 'ADD'
    });

    var logo = this.physics.add.image(400, 100, 'logo');

    logo.setVelocity(100, 200);
    logo.setBounce(1, 1);
    logo.setCollideWorldBounds(true);

    emitter.startFollow(logo);
}

Here we add a sky image into the game and create a Particle Emitter. The scale value means that the particles will initially be large and will shrink to nothing as their lifespan progresses.

After creating the emitter, we add a logo image called logo. Since logo is a Physics Image, logo is given a physics body by default. We set some properties for logo: velocity, bounce (or restitution), and collision with the world bounds. These properties will make our logo bounce around the screen. Finally, we tell the particle emitter to follow the logo - so as the logo moves, the particles will flow from it.

Run it in your browser and you'll see the following:

(Got an error? Here's the full code)

This is a tiny example, and there are hundreds more for you to explore, but hopefully it shows how expressive and quick Phaser is to use. With just a few easily readable lines of code, we've got something pretty impressive up on screen!

Subscribe to our newsletter for further tutorials and examples.

There are both plain and minified compiled versions of Phaser in the dist folder of the repository. The plain version is for use during development, and the minified version is for production use. You can also create your own builds.

Custom Builds

Phaser 3 is built using Webpack and we take advantage of the Webpack definePlugin feature to allow for conditional building of the Canvas and WebGL renderers and extra plugins. You can custom the build process to only include the features you require. Doing so can cut the main build file size down to just 70KB.

Read our comprehensive guide on creating Custom Builds of Phaser 3 for full details.

Building from Source

If you wish to build Phaser 3 from source, ensure you have the required packages by cloning the repository and then running npm install on your source directory.

You can then run webpack to create a development build in the build folder which includes source maps for local testing. You can also npm run dist to create a minified packaged build in the dist folder. For a list of all commands available use npm run help.

Change Log

Version 3.22 - Kohaku - January 15th 2020

Matter Physics

All of the following are specific to the Matter Physics implementation used by Phaser:

Matter Physics New Features

• Matter Physics now has 100% JSDoc coverage! Woohoo :)
• Matter Physics now has brand new TypeScript defs included in the types folder :)
• MatterDebugConfig is a new configuration object that contains all of the following new Matter debug settings:
• showAxes- Render all of the body axes?
• showAngleIndicator- Render just a single body axis?
• angleColor- The color of the body angle / axes lines.
• showBroadphase- Render the broadphase grid?
• broadphaseColor- The color of the broadphase grid.
• showBounds- Render the bounds of the bodies in the world?
• boundsColor- The color of the body bounds.
• showVelocity- Render the velocity of the bodies in the world?
• velocityColor- The color of the body velocity line.
• showCollisions- Render the collision points and normals for colliding pairs.
• collisionColor- The color of the collision points.
• showSeparation- Render lines showing the separation between bodies.
• separationColor- The color of the body separation line.
• showBody- Render the dynamic bodies in the world to the Graphics object?
• showStaticBody- Render the static bodies in the world to the Graphics object?
• showInternalEdges- When rendering bodies, render the internal edges as well?
• renderFill- Render the bodies using a fill color.
• renderLine- Render the bodies using a line stroke.
• fillColor- The color value of the fill when rendering dynamic bodies.
• fillOpacity- The opacity of the fill when rendering dynamic bodies, a value between 0 and 1.
• lineColor- The color value of the line stroke when rendering dynamic bodies.
• lineOpacity- The opacity of the line when rendering dynamic bodies, a value between 0 and 1.
• lineThickness- If rendering lines, the thickness of the line.
• staticFillColor- The color value of the fill when rendering static bodies.
• staticLineColor- The color value of the line stroke when rendering static bodies.
• showSleeping- Render any sleeping bodies (dynamic or static) in the world to the Graphics object?
• staticBodySleepOpacity] - The amount to multiply the opacity of sleeping static bodies by.
• sleepFillColor- The color value of the fill when rendering sleeping dynamic bodies.
• sleepLineColor- The color value of the line stroke when rendering sleeping dynamic bodies.
• showSensors- Render bodies or body parts that are flagged as being a sensor?
• sensorFillColor- The fill color when rendering body sensors.
• sensorLineColor- The line color when rendering body sensors.
• showPositions- Render the position of non-static bodies?
• positionSize- The size of the rectangle drawn when rendering the body position.
• positionColor- The color value of the rectangle drawn when rendering the body position.
• showJoint- Render all world constraints to the Graphics object?
• jointColor- The color value of joints when showJoint is set.
• jointLineOpacity- The line opacity when rendering joints, a value between 0 and 1.
• jointLineThickness- The line thickness when rendering joints.
• pinSize- The size of the circles drawn when rendering pin constraints.
• pinColor- The color value of the circles drawn when rendering pin constraints.
• springColor- The color value of spring constraints.
• anchorColor- The color value of constraint anchors.
• anchorSize- The size of the circles drawn as the constraint anchors.
• showConvexHulls- When rendering polygon bodies, render the convex hull as well?
• hullColor- The color value of hulls when showConvexHulls is set.
• World.renderBody is a new method that will render a single Matter Body to the given Graphics object. This is used internally during debug rendering but is also public. This allows you to control which bodies are rendered and to which Graphics object, should you wish to use them in-game and not just during debugging.
• World.renderConstraint is a new method that will render a single Matter Constraint, such as a pin or a spring, to the given Graphics object. This is used internally during debug rendering but is also public. This allows you to control which constraints are rendered and to which Graphics object, should you wish to use them in-game and not just during debugging.
• World.renderConvexHull is a new method that will render the convex hull of a single Matter Body, to the given Graphics object. This is used internally during debug rendering but is also public. This allows you to control which hulls are rendered and to which Graphics object, should you wish to use them in-game and not just during debugging.
• World.renderGrid is a new method that will render the broadphase Grid to the given graphics instance.
• World.renderBodyBounds is a new method that will render the bounds of all the given bodies to the given graphics instance.
• World.renderBodyAxes is a new method that will render the axes of all the given bodies to the given graphics instance.
• World.renderBodyVelocity is a new method that will render a velocity line for all the given bodies to the given graphics instance.
• World.renderSeparations is a new method that will render the separations in the current pairs list to the given graphics instance.
• World.renderCollisions is a new method that will render the collision points and normals in the current pairs list to the given graphics instance.
• World.getAllBodies is a new method that will return all bodies in the Matter World.
• World.getAllConstraints is a new method that will return all constraints in the Matter World.
• World.getAllComposites is a new method that will return all composites in the Matter World.
• MatterPhysics.composite is a new reference to the Matter.Composite module for easy access from within a Scene.
• MatterPhysics.detector is a new reference to the Matter.Dectector module for easy access from within a Scene.
• MatterPhysics.grid is a new reference to the Matter.Grid module for easy access from within a Scene.
• MatterPhysics.pair is a new reference to the Matter.Pair module for easy access from within a Scene.
• MatterPhysics.pairs is a new reference to the Matter.Pairs module for easy access from within a Scene.
• MatterPhysics.query is a new reference to the Matter.Query module for easy access from within a Scene.
• MatterPhysics.resolver is a new reference to the Matter.Resolver module for easy access from within a Scene.
• MatterPhysics.sat is a new reference to the Matter.SAT module for easy access from within a Scene.
• MatterPhysics.constraint is a new reference to the Matter.Constraint module for easy access from within a Scene.
• MatterPhysics.composites is a new reference to the Matter.Composites module for easy access from within a Scene.
• MatterPhysics.axes is a new reference to the Matter.Axes module for easy access from within a Scene.
• MatterPhysics.bounds is a new reference to the Matter.Bounds module for easy access from within a Scene.
• MatterPhysics.svg is a new reference to the Matter.Svg module for easy access from within a Scene.
• MatterPhysics.vector is a new reference to the Matter.Vector module for easy access from within a Scene.
• MatterPhysics.vertices is a new reference to the Matter.Vertices module for easy access from within a Scene.
• BEFORE_ADD is a new Event dispatched by Matter.World when a Body or Constraint is about to be added to the World.
• AFTER_ADD is a new Event dispatched by Matter.World when a Body or Constraint has been added to the World.
• BEFORE_REMOVE is a new Event dispatched by Matter.World when a Body or Constraint is about to be removed from the World.
• AFTER_REMOVE is a new Event dispatched by Matter.World when a Body or Constraint has been removed from the World.
• Body.render.lineOpacity is a new property on the Matter Body object that allows for custom debug rendering.
• Body.render.lineThickness is a new property on the Matter Body object that allows for custom debug rendering.
• Body.render.fillOpacity is a new property on the Matter Body object that allows for custom debug rendering.
• World.setCompositeRenderStyle is a new method that lets you quickly set the render style values on the children of the given compposite.
• World.setBodyRenderStyle is a new method that lets you quickly set the render style values on the given Body.
• World.setConstraintRenderStyle is a new method that lets you quickly set the render style values on the given Constraint.
• You can now set restingThresh in the Matter Configuration file to adjust the Resolver property.
• You can now set restingThreshTangent in the Matter Configuration file to adjust the Resolver property.
• You can now set positionDampen in the Matter Configuration file to adjust the Resolver property.
• You can now set positionWarming in the Matter Configuration file to adjust the Resolver property.
• You can now set frictionNormalMultiplier in the Matter Configuration file to adjust the Resolver property.
• MatterPhysics.containsPoint is a new method that returns a boolean if any of the given bodies intersect with the given point.
• MatterPhysics.intersectPoint is a new method that checks which bodies intersect with the given point and returns them.
• MatterPhysics.intersectRect is a new method that checks which bodies intersect with the given rectangular area, and returns them. Optionally, it can check which bodies are outside of the area.
• MatterPhysics.intersectRay is a new method that checks which bodies intersect with the given ray segment and returns them. Optionally, you can set the width of the ray.
• MatterPhysics.intersectBody is a new method that checks which bodies intersect with the given body and returns them. If the bodies are set to not collide this can be used as an overlaps check.
• MatterPhysics.overlap is a new method that takes a target body and checks to see if it overlaps with any of the bodies given. If they do, optional process and overlap callbacks are invoked, passing the overlapping bodies to them, along with additional collision data.
• MatterPhysics.setCollisionCategory is a new method that will set the collision filter category to the value given, on all of the bodies given. This allows you to easily set the category on bodies that don't have a Phaser Matter Collision component.
• MatterPhysics.setCollisionGroup is a new method that will set the collision filter group to the value given, on all of the bodies given. This allows you to easily set the group on bodies that don't have a Phaser Matter Collision component.
• MatterPhysics.setCollidesWith is a new method that will set the collision filter mask to the value given, on all of the bodies given. This allows you to easily set the filter mask on bodies that don't have a Phaser Matter Collision component.
• Matter.Body.centerOfMass is a new vec2 property added to the Matter Body object that retains the center of mass coordinates when the Body is first created, or has parts added to it. These are float values, derived from the body position and bounds.
• Matter.Body.centerOffset is a new vec2 property added to the Matter Body object that retains the center offset coordinates when the Body is first created, or has parts added to it. These are pixel values.
• Constraint.pointAWorld is a new method added to Matter that returns the world-space position of constraint.pointA, accounting for constraint.bodyA.
• Constraint.pointBWorld is a new method added to Matter that returns the world-space position of constraint.pointB, accounting for constraint.bodyB.
• Body.setCentre is a new method added to Matter that allows you to set the center of mass of a Body (please note the English spelling of this function.)
• Body.scale is a new read-only vector that holds the most recent scale values as passed to Body.scale.
• Matter.Bodies.flagCoincidentParts is a new function that will flags all internal edges (coincident parts) on an array of body parts. This was previously part of the fromVertices function, but has been made external for outside use.
• Matter.getMatterBodies is a new function that will return an array of Matter JS Bodies from the given input array, which can be Matter Game Objects, or any class that extends them.
• Matter.World.has is a new method that will take a Matter Body, or Game Object, and search the world for it. If found, it will return true.
• Matter now has the option to use the Runner that it ships with. The Matter Runner operates in two modes: fixed and variable. In the fixed mode, the Matter Engine updates at a fixed delta value every frame (which is what Phaser has used since the first version). In variable mode, the delta will be smoothed and capped each frame to keep the simulation constant, but at the cost of determininism. You can configure the runner by setting the runner property in the Matter Config object, both of which are fully covered with JSDocs. As of 3.22 the runner is now used by default in variable (non-fixed) mode. If you wish to return to the previous behavior, set runner: { isFixed: true }.
• Body.onCollideCallback is a new Matter Body property that can point to a callback to invoke when the body starts colliding.
• Body.onCollideEndCallback is a new Matter Body property that can point to a callback to invoke when the body stops colliding.
• Body.onCollideActiveCallback is a new Matter Body property that can point to a callback to invoke for the duration the body is colliding.
• Body.onCollideWith is a new Matter Body property that holds a mapping between bodies and collision callbacks.
• MatterGameObject.setOnCollide is a new method available on any Matter Game Object, that sets a callback that is invoked when the body collides with another.
• MatterGameObject.setOnCollideEnd is a new method available on any Matter Game Object, that sets a callback that is invoked when the body stops colliding.
• MatterGameObject.setOnCollideActive is a new method available on any Matter Game Object, that sets a callback which is invoked for the duration of the bodies collision with another.
• MatterGameObject.setOnCollideWith is a new method available on any Matter Game Object, that allows you to set a callback to be invoked whenever the body collides with another specific body, or array of bodies.
• Body.gravityScale is a new vector property that allows you to scale the effect of world gravity on a specific Body.
• MatterPhysics._tempVec2 is a new private internal vector used for velocity and force calculations.
• MatterPhysics.setVelocity is a new method that will set both the horizontal and vertical linear velocity of the given physics bodies. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.setVelocityX is a new method that will set the horizontal linear velocity of the given physics bodies. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.setVelocityY is a new method that will set the vertical linear velocity of the given physics bodies. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.setAngularVelocity is a new method that will set the angular velocity of the given physics bodies. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.applyForce is a new method that applies a force to a body, at the bodies current position, including resulting torque. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.applyForceFromPosition is a new method that applies a force to a body from the given world position, including resulting torque. If no angle is given, the current body angle is used. This can be used on all Matter bodies, not just those created via the factory.
• MatterPhysics.fromSVG is a new method that allows you to create a Body from the given SVG path data.
• The Matter.Factory.velocity method has been removed. Please now use MatterPhysics.setVelocity instead.
• The Matter.Factory.angularVelocity method has been removed. Please now use MatterPhysics.setAngularVelocity instead.
• The Matter.Factory.force method has been removed. Please now use MatterPhysics.applyForce instead.
• MatterBodyConfig is a new type def that contains all of the Body configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterBodyRenderConfig is a new type def that contains all of the Body debug rendering configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterChamferConfig is a new type def that contains all of the chamfer configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterCollisionFilter is a new type def that contains all of the collision configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterConstraintConfig is a new type def that contains all of the constraint configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterConstraintRenderConfig is a new type def that contains all of the Constraint debug rendering configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterSetBodyConfig is a new type def that contains all of the Constraint debug rendering configuration properties. This is now used through-out the JSDocs to aid in code-completion.
• MatterPhysics.getConstraintLength is a new method that will return the length of the given constraint, as this is something you cannot get from the constraint properties directly.
• MatterPhysics.alignBody is a new method that will align a Body, or Matter Game Object, against the given coordinates, using the given alignment constant. For example, this allows you to easily position a body to the BOTTOM_LEFT, or TOP_CENTER, or a coordinate. Alignment is based on the body bounds.
• Phaser.Types.Physics.Matter.MatterBody is a new type def that contains all of the valid Matter Body objects. This is now used through-out the JSDocs to aid in code-completion.
• Matter.BodyBounds is a new class that contains methods to help you extract world coordinates from various points around the bounds of a Matter Body. Because Matter bodies are positioned based on their center of mass, and not a dimension based center, you often need to get the bounds coordinates in order to properly align them in the world. You can access this new class via this.matter.bodyBounds.
• The method signature for Matter.PhysicsEditorParser.parseBody has changed. It now takes (x, y, config, options) and no longer has width and height parameters. Please see the updated documentation for more details if you were calling this method directly.
• MatterPhysics.fromPhysicsEditor is a new method that allows you to create a Matter Body based on the given PhysicsEditor shape data. Previously, you could only using PhysicsEditor data with a Matter Game Object, but now you can create a body directly using it.
• Matter.PhysicsJSONParser is a new parser that will create Matter bodies from JSON physics data files. Currently onto the Phaser Physics Tracer app exports in this format, but details are published in the JSDocs, so any app can do so.
• Matter.Factory.fromJSON is a new method that will create a body from a JSON physics data file.
• The SetBody Matter component can now automatically use shapes created in the Phaser Physics Tracer App in the JSON data format.
• Matter.Components.Sleep.setToSleep is a new method available on any Matter Game Object that will send the body to sleep, if Engine sleeping has been enabled.
• Matter.Components.Sleep.setAwake is a new method available on any Matter Game Object that will awake a body from sleep, if Engine sleeping has been enabled.

Matter Physics Updates

• The debug property in the Matter World Config is now a MatterDebugConfig option instead of a boolean. However, if a boolean is given, it will use the default debug config values.
• The following MatterWorldConfig options have now been removed: debugShowBody, debugShowStaticBody, debugBodyColor, debugBodyFillColor, debugStaticBodyColor, debugShowJoint, debugJointColor, debugWireframes, debugShowInternalEdges, debugShowConvexHulls, debugConvexHullColor and debugShowSleeping. These can all be set via the new MatterDebugConfig object instead.
• The object World.defaults has been removed. Defaults are now access via World.debugDefaults.
• World.renderBodies has been rewritten to cache commonly-used values and avoid a situation when a single body would be rendered twice.
• The private method World.renderConvexHulls has been removed as it's no longer used internally.
• The private method World.renderWireframes has been removed as it's no longer used internally.
• The method World.fromPath has been removed. This was never used internally and you can get the same results by calling Vertices.fromPath.
• The World.setBounds argument thickness now defaults to 64, not 128, to keep it matching the Matter World Config.
• The Body.render.fillStyle property that existed on the Matter Body object has been removed and replaced with fillColor.
• The Body.render.strokeStyle property that existed on the Matter Body object has been removed and replaced with lineColor.
• Matter.Body.render.sprite.xOffset and yOffset are no longer set to anything when a Body is created. They are left as zero, or you can override them in the Body config, in which case the value is added to the sprite origin offset during a call to setExistingBody.
• The Matter.Mass.centerOfMass component property now returns the pre-calculated Body centerOfMass property, which is much more accurate than the previous bounds offset value.
• Matter.setExistingBody, which is called interally whenever a Body is set on a Game Object, now uses the new centerOffset values to ensure that the texture frame is correctly centered based on the center of mass, not the Body bounds, allowing for much more accurate body to texture mapping with complex multi-part compound bodies.
• The Matter.PhysicsEditorParser has been updated so it no longer needs to set the render offsets, and instead uses the center of mass values.
• If the Matter.Body config doesn't contain a position property, it will now default to using Vertices.centre(body.vertices) as the position. In most cases, this is what you need, so it saves having to pass it in the config object.
• Bumped Matter Plugin versions to avoid console logs from Common.info and Common.warn.
• PhysicsEditorParser.parseVertices now uses Bodies.flagCoincidentParts to avoid duplicating code.
• MatterGameObject has a new optional boolean constructor parameter addToWorld which lets you control if the Body should be added to the world or not. Useful for toggling off should you be merging pre-existing bodies with Game Objects.
• The Matter.SetBody.setExistingBody function, which all Matter Game Objects have, has a new parameter addToWorld which allows you to control when the body is added to the Matter world should you not require it immediately. It will also only add the body to the world if it doesn't already exist within it, or any of its composites.
• PointerConstraint has been recoded so that when pressed down, it only polls the World for a body hit test during the next game update. This stops it coming out of sync with the state of the world. Use of the constraint remains the same as before.
• You can now set gravity: false in your Matter Config and it will reset gravity from the defaults to zero.
• The internal Matter Composite.setModified function will now emit a compositeModified event, which the Matter World listens for, if debug draw is enabled, so it can update the composite children render styles.
• Matter.PhysicsEditorParser.parseBody can now accept a MatterBodyConfig file as a 4th parameter. This allows you to set Body properties when the body is created, overriding whatever values may have been set in the PhysicsEditor JSON.

Matter Physics Bug Fixes

• Due to the rewrite of the debug rendering, it is now possible to render just constraints, where-as before this was only possible if bodies were being rendered as well. Fix #4880 (thanks @roberto257)
• Matter.PhysicsEditorParser had a bug where it would allow fixtures with non-clockwise sorted vertices through, which would break pointer constraint interaction with these bodies. The parser now sorts the vertices properly. Fix #4261 (thanks @Sanchez3)

New Features

• TimeStep.smoothStep is a new boolean property that controls if any delta smoothing takes place during the game step. Delta smoothing has been enabled in Phaser since the first version and helps avoid delta spikes and dips, especially after loss of focus. However, you can now easily toggle if this happens via this property and the corresponding FPSConfig property.
• Phaser.Math.Distance.BetweenPoints is a new function that will return the distance between two Vector2-like objects (thanks @samme)
• Phaser.Math.Distance.BetweenPointsSquared is a new function that will return the squared distance between two Vector2-like objects (thanks @samme)
• Phaser.Math.Distance.Chebyshev is a new function that will return the Chebyshev (or chessboard) distance between two Vector2-like objects (thanks @samme)
• Phaser.Math.Distance.Snake is a new function that will return the rectilinear distance between two Vector2-like objects (thanks @samme)
• ParticleEmitter.setTint is a new method that will set the tint of emitted particles for the given Emitter only (thanks @samme)
• ParticleEmitter.remove is a new method that will remove the Emitter from its Emitter Manager (thanks @samme)
• ParticleEmitterManager.removeEmitter is a new method that will remove the given emitter from the manager, if the emitter belongs to it (thanks @samme)
• AlphaSingle is a new Game Object Component that allows a Game Object to set its alpha values, but only as a single uniform value, not on a per-quad basis.
• Actions.AlignTo (in combination with the new Display.Align.To.QuickSet function) allows you to align an array of Game Objects so they sit next to each other, one at a time. The first item isn't moved, the second is moved to sit next to the first, and so on. You can align them using any of the alignment constants (thanks @samme)
• Scene.Systems.getData is a new method that will return any data that was sent to the Scene by another Scene, i.e. during a run or launch command. You can access it via this.sys.getData() from within your Scene.
• Group.internalCreateCallback is a new optional callback that is invoked whenever a child is added to a Group. This is the same as createCallback except it's only for use by the parent class, allowing a parent to invoke a creation callback and for you to still provide one via the Group config.
• Group.internalRemoveCallback is a new optional callback that is invoked whenever a child is removed from a Group. This is the same as removeCallback except it's only for use by the parent class, allowing a parent to invoke a callback and for you to still provide one via the Group config.

Updates

• Body.deltaXFinal is a new method on Arcade Physics Bodies that will return the final change in the horizontal position of the body, as based on all the steps that took place this frame. This property is calculated during the postUpdate phase, so must be listened for accordingly (thanks Bambosh)
• Body.deltaYFinal is a new method on Arcade Physics Bodies that will return the final change in the vertical position of the body, as based on all the steps that took place this frame. This property is calculated during the postUpdate phase, so must be listened for accordingly (thanks Bambosh)
• Body._tx is a new internal private var, holding the Arcade Physics Body combined total delta x value.
• Body._ty is a new internal private var, holding the Arcade Physics Body combined total delta y value.
• LineCurve.getUtoTmapping has been updated to return u directly to avoid calculations as it's identical to t in a Line (thanks @rexrainbow)
• Curve.getSpacedPoints will now take an optional array as the 3rd parameter to store the points results in (thanks @rexrainbow)
• Trying to play or resume an audio file with an incorrect key will now throw a runtime error, instead of a console warning (thanks @samme)
• The Shape Game Object now uses the AlphaSingle component, allowing you to uniformly set the alpha of the shape, rather than a quad alpha, which never worked for Shape objects.
• The Container Game Object now uses the AlphaSingle component, allowing you to uniformly set the alpha of the container, rather than a quad alpha, which never worked consistently across Container children. Fix #4916 (thanks @laineus)
• The DOMElement Game Object now uses the AlphaSingle component, allowing you to uniformly set the alpha of the element, rather than a quad alpha, which never worked for these objects.
• The Graphics Game Object now uses the AlphaSingle component, allowing you to uniformly set the alpha of the element, rather than a quad alpha, which never worked for these objects.
• TweenData has a new property called previous which holds the eased property value prior to the update.
• The TWEEN_UPDATE event now sends two new parameters to the handler: current and previous which contain the current and previous property values.
• During collideSpriteVsGroup checks it will now skip bodies that are disabled to save doing a contains test (thanks @samme)
• Display.Align.In.QuickSet now accepts LEFT_BOTTOM as BOTTOM_LEFT, LEFT_TOP as TOP_LEFT, RIGHT_BOTTOM as BOTTOM_RIGHT and RIGHT_TOP as TOP_RIGHT. Fix #4927 (thanks @zaniar)
• PhysicsGroup now uses the new internalCreateCallback and internalRemoveCallback to handle its body creation and destruction, allowing you to use your own createCallback and removeCallback as defined in the Group config. Fix #4420 #4657 #4822 (thanks @S4n60w3n @kendistiller @scrubperson)
• DOMElement has a new private method handleSceneEvent which will handle toggling the display setting of the element when a Scene sleeps and wakes. A DOM Element will now listen for the Scene sleep and wake events. These event listeners are removed in the preDestroy method.
• A DOMElement will now set the display mode to 'none' during its render if the Scene in which it belongs is no longer visible.

Bug Fixes

• BitmapText with a maxWidth set wouldn't update the text correctly if it was modified post-creation. You can now update the text and/or width independantly and it'll update correctly. Fix #4881 (thanks @oxguy3)
• Text objects will no longer add any white-space when word-wrapping if the last line is only one word long. Fix #4867 (thanks @gaamoo @rexrainbow)
• When Game.destroy is running, Scenes are now destroyed before plugins, avoiding bugs when closing down plugins and deleting Render Textures. Fix #4849 #4876 (thanks @rexrainbow @siyuanqiao)
• The Mesh and Quad Game Objects have had the GetBounds component removed as it cannot operate on a Mesh as they don't have origins. Fix #4902 (thanks @samme)
• Setting lineSpacing in the Text Game Object style config would set the value but not apply it to the Text, leaving you to call updateText yourself. If set, it's now applied on instantiation. Fix #4901 (thanks @FantaZZ)
• External calls to the Fullscreen API using element.requestFullscreen() would be blocked by the Scale Manager. The Scale Manager will no longer call stopFullScreen should it be triggered outside of Phaser (thanks @AdamXA)
• The Tilemaps.Tile.tint property wasn't working correctly as it expected the colors in the wrong order (BGR instead of RGB). It will now expect them in the correct RGB order (thanks @Aedalus @plissken2013es)
• The ScaleManager.destroy method wasn't being called when the Game DESTROY event was dispatched, causing minor gc to build up. The destroy method will now be called properly on game destruction. Fix #4944 (thanks @sunshineuoow)
• FacebookInstantGamesPlugin.showAd and showVideo will now break out of the ad iteration search once a valid ad has been found and called. Previously, it would carry on interating if the async didn't complete quickly. Fix #4888 (thanks @east62687)
• When playing an Animation, if you were to play another, then pause it, then play another the internal _paused wouldn't get reset, preventing you from them pausing the animations from that point on. You can now play and pause animations at will. Fix #4835 (thanks @murteira)
• In Actions.GridAlign if you set width to -1 it would align the items vertically, instead of horizontally. It now aligns them horizontally if width is set, or vertically if height is set. Fix #4899 (thanks @BenjaVR)
• A PathFollower with a very short duration would often not end in the correct place, which is the very end of the Path, due to the tween handling the movement not running one final update when the tween was complete. It will now always end at the final point of the path, no matter how short the duration. Fix #4950 (thanks @bramp)
• A DOMElement would still remain visible even if the Scene in which it belongs to was sent to sleep. A sleeping Scene shouldn't render anything. DOM Elements will now respond to sleep and wake events from their parent Scene. Fix #4870 (thanks @peonmodel)
• If a config object was passed to MultiAtlasFile it expected the atlas URL to be in the url property, however the docs and file config expected it in atlasURL. You can now use either of these properties to declare the url. Fix #4815 (thanks @xense)

Examples, Documentation and TypeScript

My thanks to the following for helping with the Phaser 3 Examples, Docs and TypeScript definitions, either by reporting errors, fixing them or helping author the docs:

@fselcukcan Bambosh @louisth @hexus @javigaralva @samme @BeLi4L @jcyuan @javigaralva @T-Grave @bramp @Chnapy @dranitski @RollinSafary @xense

The Matter TypeScript defs have been updated to include lots of missing classes, removed some redundant elements and general fixes. The Phaser TypeScript defs now reference the Matter defs directly and no longer try to parse them from the JSDocs. This allows the MatterJS namespace to work in TypeScript projects without any compilation warnings.

The Spine Plugin now has new TypeScript defs in the types folder thanks to @supertommy

Please see the complete Change Log for previous releases.

The Contributors Guide contains full details on how to help with Phaser development. The main points are:

• Found a bug? Report it on GitHub Issues and include a code sample. Please state which version of Phaser you are using! This is vitally important.

• Before submitting a Pull Request run your code through ES Lint using our config and respect our Editor Config.

• Before contributing read the code of conduct.

Written something cool in Phaser? Please tell us about it in the forum, or email support@phaser.io

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