/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* This is where the magic happens. The Game object is the heart of your game,
* providing quick access to common functions and handling the boot process.
*
* "Hell, there are no rules here - we're trying to accomplish something."
* Thomas A. Edison
*
* @class Phaser.Game
* @constructor
* @param {number|string} [width=800] - The width of your game in game pixels. If given as a string the value must be between 0 and 100 and will be used as the percentage width of the parent container, or the browser window if no parent is given.
* @param {number|string} [height=600] - The height of your game in game pixels. If given as a string the value must be between 0 and 100 and will be used as the percentage height of the parent container, or the browser window if no parent is given.
* @param {number} [renderer=Phaser.AUTO] - Which renderer to use: Phaser.AUTO will auto-detect, Phaser.WEBGL, Phaser.CANVAS or Phaser.HEADLESS (no rendering at all).
* @param {string|HTMLElement} [parent=''] - The DOM element into which this games canvas will be injected. Either a DOM ID (string) or the element itself.
* @param {object} [state=null] - The default state object. A object consisting of Phaser.State functions (preload, create, update, render) or null.
* @param {boolean} [transparent=false] - Use a transparent canvas background or not.
* @param {boolean} [antialias=true] - Draw all image textures anti-aliased or not. The default is for smooth textures, but disable if your game features pixel art.
* @param {object} [physicsConfig=null] - A physics configuration object to pass to the Physics world on creation.
*/
Phaser.Game = function (width, height, renderer, parent, state, transparent, antialias, physicsConfig) {
/**
* @property {number} id - Phaser Game ID (for when Pixi supports multiple instances).
*/
this.id = Phaser.GAMES.push(this) - 1;
/**
* @property {object} config - The Phaser.Game configuration object.
*/
this.config = null;
/**
* @property {object} physicsConfig - The Phaser.Physics.World configuration object.
*/
this.physicsConfig = physicsConfig;
/**
* @property {string|HTMLElement} parent - The Games DOM parent.
* @default
*/
this.parent = '';
/**
* The current Game Width in pixels.
*
* _Do not modify this property directly:_ use {@link Phaser.ScaleManager#setGameSize} - eg. `game.scale.setGameSize(width, height)` - instead.
*
* @property {integer} width
* @readonly
* @default
*/
this.width = 800;
/**
* The current Game Height in pixels.
*
* _Do not modify this property directly:_ use {@link Phaser.ScaleManager#setGameSize} - eg. `game.scale.setGameSize(width, height)` - instead.
*
* @property {integer} height
* @readonly
* @default
*/
this.height = 600;
/**
* @property {integer} _width - Private internal var.
* @private
*/
this._width = 800;
/**
* @property {integer} _height - Private internal var.
* @private
*/
this._height = 600;
/**
* @property {boolean} transparent - Use a transparent canvas background or not.
* @default
*/
this.transparent = false;
/**
* @property {boolean} antialias - Anti-alias graphics. By default scaled images are smoothed in Canvas and WebGL, set anti-alias to false to disable this globally.
* @default
*/
this.antialias = true;
/**
* @property {boolean} preserveDrawingBuffer - The value of the preserveDrawingBuffer flag affects whether or not the contents of the stencil buffer is retained after rendering.
* @default
*/
this.preserveDrawingBuffer = false;
/**
* @property {PIXI.CanvasRenderer|PIXI.WebGLRenderer} renderer - The Pixi Renderer.
*/
this.renderer = null;
/**
* @property {number} renderType - The Renderer this game will use. Either Phaser.AUTO, Phaser.CANVAS or Phaser.WEBGL.
*/
this.renderType = Phaser.AUTO;
/**
* @property {Phaser.StateManager} state - The StateManager.
*/
this.state = null;
/**
* @property {boolean} isBooted - Whether the game engine is booted, aka available.
* @default
*/
this.isBooted = false;
/**
* @property {boolean} id -Is game running or paused?
* @default
*/
this.isRunning = false;
/**
* @property {Phaser.RequestAnimationFrame} raf - Automatically handles the core game loop via requestAnimationFrame or setTimeout
*/
this.raf = null;
/**
* @property {Phaser.GameObjectFactory} add - Reference to the Phaser.GameObjectFactory.
*/
this.add = null;
/**
* @property {Phaser.GameObjectCreator} make - Reference to the GameObject Creator.
*/
this.make = null;
/**
* @property {Phaser.Cache} cache - Reference to the assets cache.
*/
this.cache = null;
/**
* @property {Phaser.Input} input - Reference to the input manager
*/
this.input = null;
/**
* @property {Phaser.Loader} load - Reference to the assets loader.
*/
this.load = null;
/**
* @property {Phaser.Math} math - Reference to the math helper.
*/
this.math = null;
/**
* @property {Phaser.Net} net - Reference to the network class.
*/
this.net = null;
/**
* @property {Phaser.ScaleManager} scale - The game scale manager.
*/
this.scale = null;
/**
* @property {Phaser.SoundManager} sound - Reference to the sound manager.
*/
this.sound = null;
/**
* @property {Phaser.Stage} stage - Reference to the stage.
*/
this.stage = null;
/**
* @property {Phaser.Time} time - Reference to the core game clock.
*/
this.time = null;
/**
* @property {Phaser.TweenManager} tweens - Reference to the tween manager.
*/
this.tweens = null;
/**
* @property {Phaser.World} world - Reference to the world.
*/
this.world = null;
/**
* @property {Phaser.Physics} physics - Reference to the physics manager.
*/
this.physics = null;
/**
* @property {Phaser.RandomDataGenerator} rnd - Instance of repeatable random data generator helper.
*/
this.rnd = null;
/**
* @property {Phaser.Device} device - Contains device information and capabilities.
*/
this.device = Phaser.Device;
/**
* @property {Phaser.Camera} camera - A handy reference to world.camera.
*/
this.camera = null;
/**
* @property {HTMLCanvasElement} canvas - A handy reference to renderer.view, the canvas that the game is being rendered in to.
*/
this.canvas = null;
/**
* @property {CanvasRenderingContext2D} context - A handy reference to renderer.context (only set for CANVAS games, not WebGL)
*/
this.context = null;
/**
* @property {Phaser.Utils.Debug} debug - A set of useful debug utilitie.
*/
this.debug = null;
/**
* @property {Phaser.Particles} particles - The Particle Manager.
*/
this.particles = null;
/**
* @property {boolean} stepping - Enable core loop stepping with Game.enableStep().
* @default
* @readonly
*/
this.stepping = false;
/**
* @property {boolean} pendingStep - An internal property used by enableStep, but also useful to query from your own game objects.
* @default
* @readonly
*/
this.pendingStep = false;
/**
* @property {number} stepCount - When stepping is enabled this contains the current step cycle.
* @default
* @readonly
*/
this.stepCount = 0;
/**
* @property {Phaser.Signal} onPause - This event is fired when the game pauses.
*/
this.onPause = null;
/**
* @property {Phaser.Signal} onResume - This event is fired when the game resumes from a paused state.
*/
this.onResume = null;
/**
* @property {Phaser.Signal} onBlur - This event is fired when the game no longer has focus (typically on page hide).
*/
this.onBlur = null;
/**
* @property {Phaser.Signal} onFocus - This event is fired when the game has focus (typically on page show).
*/
this.onFocus = null;
/**
* @property {boolean} _paused - Is game paused?
* @private
*/
this._paused = false;
/**
* @property {boolean} _codePaused - Was the game paused via code or a visibility change?
* @private
*/
this._codePaused = false;
/**
* @property {number} _deltaTime - accumulate elapsed time until a logic update is due
* @private
*/
this._deltaTime = 0;
/**
* @property {number} _lastCount - remember how many 'catch-up' iterations were used on the logicUpdate last frame
* @private
*/
this._lastCount = 0;
/**
* @property {number} _spiralling - if the 'catch-up' iterations are spiralling out of control, this counter is incremented
* @private
*/
this._spiralling = 0;
/**
* @property {Phaser.Signal} fpsProblemNotifier - if the game is struggling to maintain the desiredFps, this signal will be dispatched
* to suggest that the program adjust it's fps closer to the Time.suggestedFps value
* @public
*/
this.fpsProblemNotifier = new Phaser.Signal();
/**
* @property {boolean} forceSingleUpdate - Should the game loop force a logic update, regardless of the delta timer? Set to true if you know you need this. You can toggle it on the fly.
*/
this.forceSingleUpdate = false;
/**
* @property {number} _nextNotification - the soonest game.time.time value that the next fpsProblemNotifier can be dispatched
* @private
*/
this._nextFpsNotification = 0;
// Parse the configuration object (if any)
if (arguments.length === 1 && typeof arguments[0] === 'object')
{
this.parseConfig(arguments[0]);
}
else
{
this.config = { enableDebug: true };
if (typeof width !== 'undefined')
{
this._width = width;
}
if (typeof height !== 'undefined')
{
this._height = height;
}
if (typeof renderer !== 'undefined')
{
this.renderType = renderer;
}
if (typeof parent !== 'undefined')
{
this.parent = parent;
}
if (typeof transparent !== 'undefined')
{
this.transparent = transparent;
}
if (typeof antialias !== 'undefined')
{
this.antialias = antialias;
}
this.rnd = new Phaser.RandomDataGenerator([(Date.now() * Math.random()).toString()]);
this.state = new Phaser.StateManager(this, state);
}
this.device.whenReady(this.boot, this);
return this;
};
Phaser.Game.prototype = {
/**
* Parses a Game configuration object.
*
* @method Phaser.Game#parseConfig
* @protected
*/
parseConfig: function (config) {
this.config = config;
if (typeof config['enableDebug'] === 'undefined')
{
this.config.enableDebug = true;
}
if (config['width'])
{
this._width = config['width'];
}
if (config['height'])
{
this._height = config['height'];
}
if (config['renderer'])
{
this.renderType = config['renderer'];
}
if (config['parent'])
{
this.parent = config['parent'];
}
if (config['transparent'])
{
this.transparent = config['transparent'];
}
if (config['antialias'])
{
this.antialias = config['antialias'];
}
if (config['preserveDrawingBuffer'])
{
this.preserveDrawingBuffer = config['preserveDrawingBuffer'];
}
if (config['physicsConfig'])
{
this.physicsConfig = config['physicsConfig'];
}
var seed = [(Date.now() * Math.random()).toString()];
if (config['seed'])
{
seed = config['seed'];
}
this.rnd = new Phaser.RandomDataGenerator(seed);
var state = null;
if (config['state'])
{
state = config['state'];
}
this.state = new Phaser.StateManager(this, state);
},
/**
* Initialize engine sub modules and start the game.
*
* @method Phaser.Game#boot
* @protected
*/
boot: function () {
if (this.isBooted)
{
return;
}
this.onPause = new Phaser.Signal();
this.onResume = new Phaser.Signal();
this.onBlur = new Phaser.Signal();
this.onFocus = new Phaser.Signal();
this.isBooted = true;
this.math = Phaser.Math;
this.scale = new Phaser.ScaleManager(this, this._width, this._height);
this.stage = new Phaser.Stage(this);
this.setUpRenderer();
this.world = new Phaser.World(this);
this.add = new Phaser.GameObjectFactory(this);
this.make = new Phaser.GameObjectCreator(this);
this.cache = new Phaser.Cache(this);
this.load = new Phaser.Loader(this);
this.time = new Phaser.Time(this);
this.tweens = new Phaser.TweenManager(this);
this.input = new Phaser.Input(this);
this.sound = new Phaser.SoundManager(this);
this.physics = new Phaser.Physics(this, this.physicsConfig);
this.particles = new Phaser.Particles(this);
this.plugins = new Phaser.PluginManager(this);
this.net = new Phaser.Net(this);
this.time.boot();
this.stage.boot();
this.world.boot();
this.scale.boot();
this.input.boot();
this.sound.boot();
this.state.boot();
if (this.config['enableDebug'])
{
this.debug = new Phaser.Utils.Debug(this);
this.debug.boot();
}
else
{
this.debug = { preUpdate: function () {}, update: function () {} };
}
this.showDebugHeader();
this.isRunning = true;
if (this.config && this.config['forceSetTimeOut'])
{
this.raf = new Phaser.RequestAnimationFrame(this, this.config['forceSetTimeOut']);
}
else
{
this.raf = new Phaser.RequestAnimationFrame(this, false);
}
this.raf.start();
},
/**
* Displays a Phaser version debug header in the console.
*
* @method Phaser.Game#showDebugHeader
* @protected
*/
showDebugHeader: function () {
var v = Phaser.VERSION;
var r = 'Canvas';
var a = 'HTML Audio';
var c = 1;
if (this.renderType === Phaser.WEBGL)
{
r = 'WebGL';
c++;
}
else if (this.renderType == Phaser.HEADLESS)
{
r = 'Headless';
}
if (this.device.webAudio)
{
a = 'WebAudio';
c++;
}
if (this.device.chrome)
{
var args = [
'%c %c %c Phaser v' + v + ' | Pixi.js ' + PIXI.VERSION + ' | ' + r + ' | ' + a + ' %c %c ' + '%c http://phaser.io %c\u2665%c\u2665%c\u2665',
'background: #3db79f',
'background: #329582',
'color: #ffffff; background: #226558;',
'background: #329582',
'background: #3db79f',
'background: #ffffff'
];
for (var i = 0; i < 3; i++)
{
if (i < c)
{
args.push('color: #ff2424; background: #fff');
}
else
{
args.push('color: #959595; background: #fff');
}
}
console.log.apply(console, args);
}
else if (window['console'])
{
console.log('Phaser v' + v + ' | Pixi.js ' + PIXI.VERSION + ' | ' + r + ' | ' + a + ' | http://phaser.io');
}
},
/**
* Checks if the device is capable of using the requested renderer and sets it up or an alternative if not.
*
* @method Phaser.Game#setUpRenderer
* @protected
*/
setUpRenderer: function () {
if (this.config['canvasID'])
{
this.canvas = Phaser.Canvas.create(this.width, this.height, this.config['canvasID']);
}
else
{
this.canvas = Phaser.Canvas.create(this.width, this.height);
}
if (this.config['canvasStyle'])
{
this.canvas.style = this.config['canvasStyle'];
}
else
{
this.canvas.style['-webkit-full-screen'] = 'width: 100%; height: 100%';
}
if (this.device.cocoonJS)
{
if (this.renderType === Phaser.CANVAS)
{
this.canvas.screencanvas = true;
}
else
{
// Some issue related to scaling arise with Cocoon using screencanvas and webgl renderer.
this.canvas.screencanvas = false;
}
}
if (this.renderType === Phaser.HEADLESS || this.renderType === Phaser.CANVAS || (this.renderType === Phaser.AUTO && this.device.webGL === false))
{
if (this.device.canvas)
{
if (this.renderType === Phaser.AUTO)
{
this.renderType = Phaser.CANVAS;
}
this.renderer = new PIXI.CanvasRenderer(this.width, this.height, { "view": this.canvas, "transparent": this.transparent, "resolution": 1, "clearBeforeRender": true });
this.context = this.renderer.context;
}
else
{
throw new Error('Phaser.Game - cannot create Canvas or WebGL context, aborting.');
}
}
else
{
// They requested WebGL and their browser supports it
this.renderType = Phaser.WEBGL;
this.renderer = new PIXI.WebGLRenderer(this.width, this.height, { "view": this.canvas, "transparent": this.transparent, "resolution": 1, "antialias": this.antialias, "preserveDrawingBuffer": this.preserveDrawingBuffer });
this.context = null;
}
if (this.renderType !== Phaser.HEADLESS)
{
this.stage.smoothed = this.antialias;
Phaser.Canvas.addToDOM(this.canvas, this.parent, false);
Phaser.Canvas.setTouchAction(this.canvas);
}
},
/**
* The core game loop.
*
* @method Phaser.Game#update
* @protected
* @param {number} time - The current time as provided by RequestAnimationFrame.
*/
update: function (time) {
this.time.update(time);
// if the logic time is spiralling upwards, skip a frame entirely
if (this._spiralling > 1 && !this.forceSingleUpdate)
{
// cause an event to warn the program that this CPU can't keep up with the current desiredFps rate
if (this.time.time > this._nextFpsNotification)
{
// only permit one fps notification per 10 seconds
this._nextFpsNotification = this.time.time + 1000 * 10;
// dispatch the notification signal
this.fpsProblemNotifier.dispatch();
}
// reset the _deltaTime accumulator which will cause all pending dropped frames to be permanently skipped
this._deltaTime = 0;
this._spiralling = 0;
// call the game render update exactly once every frame
this.updateRender(this.time.slowMotion * this.time.desiredFps);
}
else
{
// step size taking into account the slow motion speed
var slowStep = this.time.slowMotion * 1000.0 / this.time.desiredFps;
// accumulate time until the slowStep threshold is met or exceeded... up to a limit of 3 catch-up frames at slowStep intervals
this._deltaTime += Math.max(Math.min(slowStep * 3, this.time.elapsed), 0);
// call the game update logic multiple times if necessary to "catch up" with dropped frames
// unless forceSingleUpdate is true
var count = 0;
while (this._deltaTime >= slowStep)
{
this._deltaTime -= slowStep;
this.updateLogic(1.0 / this.time.desiredFps);
count++;
if (this.forceSingleUpdate && count === 1)
{
break;
}
}
// detect spiralling (if the catch-up loop isn't fast enough, the number of iterations will increase constantly)
if (count > this._lastCount)
{
this._spiralling++;
}
else if (count < this._lastCount)
{
// looks like it caught up successfully, reset the spiral alert counter
this._spiralling = 0;
}
this._lastCount = count;
// call the game render update exactly once every frame unless we're playing catch-up from a spiral condition
this.updateRender(this._deltaTime / slowStep);
}
},
/**
* Updates all logic subsystems in Phaser. Called automatically by Game.update.
*
* @method Phaser.Game#updateLogic
* @protected
* @param {number} timeStep - The current timeStep value as determined by Game.update.
*/
updateLogic: function (timeStep) {
if (!this._paused && !this.pendingStep)
{
if (this.stepping)
{
this.pendingStep = true;
}
this.scale.preUpdate();
this.debug.preUpdate();
this.world.camera.preUpdate();
this.physics.preUpdate();
this.state.preUpdate(timeStep);
this.plugins.preUpdate(timeStep);
this.stage.preUpdate();
this.state.update();
this.stage.update();
this.tweens.update(timeStep);
this.sound.update();
this.input.update();
this.physics.update();
this.particles.update();
this.plugins.update();
this.stage.postUpdate();
this.plugins.postUpdate();
}
else
{
// Scaling and device orientation changes are still reflected when paused.
this.scale.pauseUpdate();
this.state.pauseUpdate();
this.debug.preUpdate();
}
},
/**
* Renders the display list. Called automatically by Game.update.
*
* @method Phaser.Game#updateRender
* @protected
* @param {number} elapsedTime - The time elapsed since the last update.
*/
updateRender: function (elapsedTime) {
this.state.preRender();
this.renderer.render(this.stage);
this.plugins.render(elapsedTime);
this.state.render(elapsedTime);
this.plugins.postRender(elapsedTime);
},
/**
* Enable core game loop stepping. When enabled you must call game.step() directly (perhaps via a DOM button?)
* Calling step will advance the game loop by one frame. This is extremely useful for hard to track down errors!
*
* @method Phaser.Game#enableStep
*/
enableStep: function () {
this.stepping = true;
this.pendingStep = false;
this.stepCount = 0;
},
/**
* Disables core game loop stepping.
*
* @method Phaser.Game#disableStep
*/
disableStep: function () {
this.stepping = false;
this.pendingStep = false;
},
/**
* When stepping is enabled you must call this function directly (perhaps via a DOM button?) to advance the game loop by one frame.
* This is extremely useful to hard to track down errors! Use the internal stepCount property to monitor progress.
*
* @method Phaser.Game#step
*/
step: function () {
this.pendingStep = false;
this.stepCount++;
},
/**
* Nukes the entire game from orbit.
*
* @method Phaser.Game#destroy
*/
destroy: function () {
this.raf.stop();
this.state.destroy();
this.sound.destroy();
this.scale.destroy();
this.stage.destroy();
this.input.destroy();
this.physics.destroy();
this.state = null;
this.cache = null;
this.input = null;
this.load = null;
this.sound = null;
this.stage = null;
this.time = null;
this.world = null;
this.isBooted = false;
if (this.renderType === Phaser.WEBGL)
{
PIXI.glContexts[this.renderer.glContextId] = null;
this.renderer.projection = null;
this.renderer.offset = null;
this.renderer.shaderManager.destroy();
this.renderer.spriteBatch.destroy();
this.renderer.maskManager.destroy();
this.renderer.filterManager.destroy();
this.renderer.shaderManager = null;
this.renderer.spriteBatch = null;
this.renderer.maskManager = null;
this.renderer.filterManager = null;
this.renderer.gl = null;
this.renderer.renderSession = null;
Phaser.Canvas.removeFromDOM(this.canvas);
}
else
{
this.renderer.destroy(true);
}
Phaser.GAMES[this.id] = null;
},
/**
* Called by the Stage visibility handler.
*
* @method Phaser.Game#gamePaused
* @param {object} event - The DOM event that caused the game to pause, if any.
* @protected
*/
gamePaused: function (event) {
// If the game is already paused it was done via game code, so don't re-pause it
if (!this._paused)
{
this._paused = true;
this.time.gamePaused();
this.sound.setMute();
this.onPause.dispatch(event);
}
},
/**
* Called by the Stage visibility handler.
*
* @method Phaser.Game#gameResumed
* @param {object} event - The DOM event that caused the game to pause, if any.
* @protected
*/
gameResumed: function (event) {
// Game is paused, but wasn't paused via code, so resume it
if (this._paused && !this._codePaused)
{
this._paused = false;
this.time.gameResumed();
this.input.reset();
this.sound.unsetMute();
this.onResume.dispatch(event);
}
},
/**
* Called by the Stage visibility handler.
*
* @method Phaser.Game#focusLoss
* @param {object} event - The DOM event that caused the game to pause, if any.
* @protected
*/
focusLoss: function (event) {
this.onBlur.dispatch(event);
if (!this.stage.disableVisibilityChange)
{
this.gamePaused(event);
}
},
/**
* Called by the Stage visibility handler.
*
* @method Phaser.Game#focusGain
* @param {object} event - The DOM event that caused the game to pause, if any.
* @protected
*/
focusGain: function (event) {
this.onFocus.dispatch(event);
if (!this.stage.disableVisibilityChange)
{
this.gameResumed(event);
}
}
};
Phaser.Game.prototype.constructor = Phaser.Game;
/**
* The paused state of the Game. A paused game doesn't update any of its subsystems.
* When a game is paused the onPause event is dispatched. When it is resumed the onResume event is dispatched.
* @name Phaser.Game#paused
* @property {boolean} paused - Gets and sets the paused state of the Game.
*/
Object.defineProperty(Phaser.Game.prototype, "paused", {
get: function () {
return this._paused;
},
set: function (value) {
if (value === true)
{
if (this._paused === false)
{
this._paused = true;
this.sound.setMute();
this.time.gamePaused();
this.onPause.dispatch(this);
}
this._codePaused = true;
}
else
{
if (this._paused)
{
this._paused = false;
this.input.reset();
this.sound.unsetMute();
this.time.gameResumed();
this.onResume.dispatch(this);
}
this._codePaused = false;
}
}
});
/**
* "Deleted code is debugged code." - Jeff Sickel
*/
