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< a href = "Phaser.Text.html" > Text< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Tile.html" > Tile< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Tilemap.html" > Tilemap< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.TilemapLayer.html" > TilemapLayer< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.TilemapParser.html" > TilemapParser< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Tileset.html" > Tileset< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.TileSprite.html" > TileSprite< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Time.html" > Time< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Timer.html" > Timer< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.TimerEvent.html" > TimerEvent< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Touch.html" > Touch< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Tween.html" > Tween< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.TweenManager.html" > TweenManager< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.Utils.html" > Utils< / a >
< / li >
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< li class = "class-depth-2" >
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< a href = "Phaser.Utils.Debug.html" > Debug< / a >
< / li >
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< li class = "class-depth-1" >
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< a href = "Phaser.World.html" > World< / a >
< / li >
< / ul >
< / li >
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< / strong >
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< / ul >
< / div >
< / div >
< div class = "row-fluid" >
< div class = "span12" >
< div id = "main" >
< h1 class = "page-title" > Source: particles/arcade/Emitter.js< / h1 >
< section >
< article >
< pre class = "sunlight-highlight-javascript linenums" > /**
* @author Richard Davey < rich@photonstorm.com>
2014-02-05 06:29:17 +00:00
* @copyright 2014 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* @class Phaser.Particles.Arcade.Emitter
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*
* @classdesc Emitter is a lightweight particle emitter that uses Arcade Physics.
* It can be used for one-time explosions or for continuous effects like rain and fire.
* All it really does is launch Particle objects out at set intervals, and fixes their positions and velocities accorindgly.
*
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* @constructor
* @extends Phaser.Group
* @param {Phaser.Game} game - Current game instance.
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* @param {number} [x=0] - The x coordinate within the Emitter that the particles are emitted from.
* @param {number} [y=0] - The y coordinate within the Emitter that the particles are emitted from.
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* @param {number} [maxParticles=50] - The total number of particles in this emitter.
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*/
Phaser.Particles.Arcade.Emitter = function (game, x, y, maxParticles) {
/**
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* @property {number} maxParticles - The total number of particles in this emitter.
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* @default
*/
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this.maxParticles = maxParticles || 50;
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Phaser.Group.call(this, game);
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/**
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* @property {string} name - A handy string name for this emitter. Can be set to anything.
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*/
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this.name = 'emitter' + this.game.particles.ID++;
/**
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* @property {number} type - Internal Phaser Type value.
* @protected
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*/
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this.type = Phaser.EMITTER;
/**
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* @property {Phaser.Rectangle} area - The area of the emitter. Particles can be randomly generated from anywhere within this rectangle.
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* @default
*/
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this.area = new Phaser.Rectangle(x, y, 1, 1);
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/**
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* @property {Phaser.Point} minParticleSpeed - The minimum possible velocity of a particle.
* @default
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*/
this.minParticleSpeed = new Phaser.Point(-100, -100);
/**
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* @property {Phaser.Point} maxParticleSpeed - The maximum possible velocity of a particle.
* @default
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*/
this.maxParticleSpeed = new Phaser.Point(100, 100);
/**
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* @property {number} minParticleScale - The minimum possible scale of a particle. This is applied to the X and Y axis. If you need to control each axis see minParticleScaleX.
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* @default
*/
this.minParticleScale = 1;
/**
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* @property {number} maxParticleScale - The maximum possible scale of a particle. This is applied to the X and Y axis. If you need to control each axis see maxParticleScaleX.
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* @default
*/
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this.maxParticleScale = 1;
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/**
* @property {array} scaleData - An array of the calculated scale easing data applied to particles with scaleRates > 0.
*/
this.scaleData = null;
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/**
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* @property {number} minRotation - The minimum possible angular velocity of a particle.
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* @default
*/
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this.minRotation = -360;
/**
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* @property {number} maxRotation - The maximum possible angular velocity of a particle.
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* @default
*/
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this.maxRotation = 360;
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/**
* @property {number} minParticleAlpha - The minimum possible alpha value of a particle.
* @default
*/
this.minParticleAlpha = 1;
/**
* @property {number} maxParticleAlpha - The maximum possible alpha value of a particle.
* @default
*/
this.maxParticleAlpha = 1;
/**
* @property {array} alphaData - An array of the calculated alpha easing data applied to particles with alphaRates > 0.
*/
this.alphaData = null;
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/**
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* @property {number} gravity - Sets the `body.gravity.y` of each particle sprite to this value on launch.
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* @default
*/
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this.gravity = 100;
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/**
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* @property {any} particleClass - For emitting your own particle class types. They must extend Phaser.Particle.
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* @default
*/
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this.particleClass = Phaser.Particle;
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/**
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* @property {Phaser.Point} particleDrag - The X and Y drag component of particles launched from the emitter.
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*/
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this.particleDrag = new Phaser.Point();
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/**
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* @property {number} angularDrag - The angular drag component of particles launched from the emitter if they are rotating.
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* @default
*/
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this.angularDrag = 0;
/**
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* @property {boolean} frequency - How often a particle is emitted in ms (if emitter is started with Explode === false).
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* @default
*/
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this.frequency = 100;
/**
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* @property {number} lifespan - How long each particle lives once it is emitted in ms. Default is 2 seconds. Set lifespan to 'zero' for particles to live forever.
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* @default
*/
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this.lifespan = 2000;
/**
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* @property {Phaser.Point} bounce - How much each particle should bounce on each axis. 1 = full bounce, 0 = no bounce.
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*/
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this.bounce = new Phaser.Point();
/**
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* @property {boolean} on - Determines whether the emitter is currently emitting particles. It is totally safe to directly toggle this.
* @default
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*/
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this.on = false;
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/**
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* @property {Phaser.Point} particleAnchor - When a particle is created its anchor will be set to match this Point object (defaults to x/y: 0.5 to aid in rotation)
* @default
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*/
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this.particleAnchor = new Phaser.Point(0.5, 0.5);
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/**
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* @property {number} blendMode - The blendMode as set on the particle when emitted from the Emitter. Defaults to NORMAL. Needs browser capable of supporting canvas blend-modes (most not available in WebGL)
* @default
*/
this.blendMode = Phaser.blendModes.NORMAL;
/**
* The point the particles are emitted from.
* Emitter.x and Emitter.y control the containers location, which updates all current particles
* Emitter.emitX and Emitter.emitY control the emission location relative to the x/y position.
* @property {number} emitX
*/
this.emitX = x;
/**
* The point the particles are emitted from.
* Emitter.x and Emitter.y control the containers location, which updates all current particles
* Emitter.emitX and Emitter.emitY control the emission location relative to the x/y position.
* @property {number} emitY
*/
this.emitY = y;
/**
* @property {boolean} autoScale - When a new Particle is emitted this controls if it will automatically scale in size. Use Emitter.setScale to configure.
*/
this.autoScale = false;
/**
* @property {boolean} autoAlpha - When a new Particle is emitted this controls if it will automatically change alpha. Use Emitter.setAlpha to configure.
*/
this.autoAlpha = false;
/**
* @property {boolean} particleBringToTop - If this is `true` then when the Particle is emitted it will be bought to the top of the Emitters display list.
* @default
*/
this.particleBringToTop = false;
/**
* @property {boolean} particleSendToBack - If this is `true` then when the Particle is emitted it will be sent to the back of the Emitters display list.
* @default
*/
this.particleSendToBack = false;
/**
* @property {Phaser.Point} _minParticleScale - Internal particle scale var.
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* @private
*/
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this._minParticleScale = new Phaser.Point(1, 1);
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/**
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* @property {Phaser.Point} _maxParticleScale - Internal particle scale var.
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* @private
*/
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this._maxParticleScale = new Phaser.Point(1, 1);
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/**
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* @property {number} _quantity - Internal helper for deciding how many particles to launch.
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* @private
*/
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this._quantity = 0;
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/**
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* @property {number} _timer - Internal helper for deciding when to launch particles or kill them.
* @private
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*/
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this._timer = 0;
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/**
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* @property {number} _counter - Internal counter for figuring out how many particles to launch.
* @private
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*/
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this._counter = 0;
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/**
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* @property {boolean} _explode - Internal helper for the style of particle emission (all at once, or one at a time).
* @private
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*/
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this._explode = true;
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/**
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* @property {any} _frames - Internal helper for the particle frame.
* @private
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*/
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this._frames = null;
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};
Phaser.Particles.Arcade.Emitter.prototype = Object.create(Phaser.Group.prototype);
Phaser.Particles.Arcade.Emitter.prototype.constructor = Phaser.Particles.Arcade.Emitter;
/**
* Called automatically by the game loop, decides when to launch particles and when to "die".
* @method Phaser.Particles.Arcade.Emitter#update
*/
Phaser.Particles.Arcade.Emitter.prototype.update = function () {
if (this.on)
{
if (this._explode)
{
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this._counter = 0;
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do
{
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this.emitParticle();
this._counter++;
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}
while (this._counter < this._quantity);
this.on = false;
}
else
{
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if (this.game.time.now >= this._timer)
{
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this.emitParticle();
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this._counter++;
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if (this._quantity > 0)
{
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if (this._counter >= this._quantity)
{
this.on = false;
}
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}
this._timer = this.game.time.now + this.frequency;
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}
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}
}
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var i = this.children.length;
while (i--)
{
if (this.children[i].exists)
{
this.children[i].update();
}
}
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};
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/**
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* This function generates a new set of particles for use by this emitter.
* The particles are stored internally waiting to be emitted via Emitter.start.
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*
* @method Phaser.Particles.Arcade.Emitter#makeParticles
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* @param {array|string} keys - A string or an array of strings that the particle sprites will use as their texture. If an array one is picked at random.
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* @param {array|number} [frames=0] - A frame number, or array of frames that the sprite will use. If an array one is picked at random.
* @param {number} [quantity] - The number of particles to generate. If not given it will use the value of Emitter.maxParticles.
* @param {boolean} [collide=false] - If you want the particles to be able to collide with other Arcade Physics bodies then set this to true.
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* @param {boolean} [collideWorldBounds=false] - A particle can be set to collide against the World bounds automatically and rebound back into the World if this is set to true. Otherwise it will leave the World.
* @return {Phaser.Particles.Arcade.Emitter} This Emitter instance.
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*/
Phaser.Particles.Arcade.Emitter.prototype.makeParticles = function (keys, frames, quantity, collide, collideWorldBounds) {
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if (typeof frames === 'undefined') { frames = 0; }
if (typeof quantity === 'undefined') { quantity = this.maxParticles; }
if (typeof collide === 'undefined') { collide = false; }
if (typeof collideWorldBounds === 'undefined') { collideWorldBounds = false; }
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var particle;
var i = 0;
var rndKey = keys;
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var rndFrame = frames;
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this._frames = frames;
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while (i < quantity)
{
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if (Array.isArray(keys))
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{
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rndKey = this.game.rnd.pick(keys);
}
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if (Array.isArray(frames))
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{
rndFrame = this.game.rnd.pick(frames);
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}
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particle = new this.particleClass(this.game, 0, 0, rndKey, rndFrame);
this.game.physics.arcade.enable(particle, false);
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if (collide)
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{
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particle.body.checkCollision.any = true;
particle.body.checkCollision.none = false;
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}
else
{
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particle.body.checkCollision.none = true;
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}
particle.body.collideWorldBounds = collideWorldBounds;
particle.exists = false;
particle.visible = false;
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particle.anchor.copyFrom(this.particleAnchor);
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this.add(particle);
i++;
}
return this;
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};
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/**
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* Call this function to turn off all the particles and the emitter.
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*
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* @method Phaser.Particles.Arcade.Emitter#kill
*/
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Phaser.Particles.Arcade.Emitter.prototype.kill = function () {
this.on = false;
this.alive = false;
this.exists = false;
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};
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/**
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* Handy for bringing game objects "back to life". Just sets alive and exists back to true.
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*
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* @method Phaser.Particles.Arcade.Emitter#revive
*/
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Phaser.Particles.Arcade.Emitter.prototype.revive = function () {
this.alive = true;
this.exists = true;
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};
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/**
* Call this function to emit the given quantity of particles at all once (an explosion)
*
* @method Phaser.Particles.Arcade.Emitter#explode
* @param {number} [lifespan=0] - How long each particle lives once emitted in ms. 0 = forever.
* @param {number} [quantity=0] - How many particles to launch.
*/
Phaser.Particles.Arcade.Emitter.prototype.explode = function (lifespan, quantity) {
this.start(true, lifespan, 0, quantity, false);
};
/**
* Call this function to start emitting a flow of particles at the given frequency.
*
* @method Phaser.Particles.Arcade.Emitter#flow
* @param {number} [lifespan=0] - How long each particle lives once emitted in ms. 0 = forever.
* @param {number} [frequency=250] - Frequency is how often to emit a particle, given in ms.
* @param {number} [quantity=0] - How many particles to launch.
*/
Phaser.Particles.Arcade.Emitter.prototype.flow = function (lifespan, frequency, quantity) {
this.start(false, lifespan, frequency, quantity, true);
};
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/**
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* Call this function to start emitting particles.
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*
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* @method Phaser.Particles.Arcade.Emitter#start
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* @param {boolean} [explode=true] - Whether the particles should all burst out at once (true) or at the frequency given (false).
* @param {number} [lifespan=0] - How long each particle lives once emitted in ms. 0 = forever.
* @param {number} [frequency=250] - Ignored if Explode is set to true. Frequency is how often to emit 1 particle. Value given in ms.
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* @param {number} [quantity=0] - How many particles to launch. 0 = "all of the particles".
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* @param {number} [forceQuantity=false] - If true and creating a particle flow, the quantity emitted will be forced to the be quantity given in this call.
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*/
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Phaser.Particles.Arcade.Emitter.prototype.start = function (explode, lifespan, frequency, quantity, forceQuantity) {
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if (typeof explode === 'undefined') { explode = true; }
if (typeof lifespan === 'undefined') { lifespan = 0; }
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if (typeof frequency === 'undefined' || frequency === null) { frequency = 250; }
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if (typeof quantity === 'undefined') { quantity = 0; }
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if (typeof forceQuantity === 'undefined') { forceQuantity = false; }
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this.revive();
this.visible = true;
this.on = true;
this._explode = explode;
this.lifespan = lifespan;
this.frequency = frequency;
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if (explode || forceQuantity)
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{
this._quantity = quantity;
}
else
{
this._quantity += quantity;
}
this._counter = 0;
this._timer = this.game.time.now + frequency;
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};
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/**
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* This function can be used both internally and externally to emit the next particle in the queue.
*
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* @method Phaser.Particles.Arcade.Emitter#emitParticle
*/
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Phaser.Particles.Arcade.Emitter.prototype.emitParticle = function () {
var particle = this.getFirstExists(false);
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if (particle === null)
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{
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return;
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}
if (this.width > 1 || this.height > 1)
{
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particle.reset(this.game.rnd.integerInRange(this.left, this.right), this.game.rnd.integerInRange(this.top, this.bottom));
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}
else
{
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particle.reset(this.emitX, this.emitY);
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}
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particle.angle = 0;
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particle.lifespan = this.lifespan;
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if (this.particleBringToTop)
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{
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this.bringToTop(particle);
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}
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else if (this.particleSendToBack)
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{
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this.sendToBack(particle);
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}
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if (this.autoScale)
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{
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particle.setScaleData(this.scaleData);
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}
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else if (this.minParticleScale !== 1 || this.maxParticleScale !== 1)
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{
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particle.scale.set(this.game.rnd.realInRange(this.minParticleScale, this.maxParticleScale));
}
else if ((this._minParticleScale.x !== this._maxParticleScale.x) || (this._minParticleScale.y !== this._maxParticleScale.y))
{
particle.scale.set(this.game.rnd.realInRange(this._minParticleScale.x, this._maxParticleScale.x), this.game.rnd.realInRange(this._minParticleScale.y, this._maxParticleScale.y));
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}
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if (Array.isArray(this._frames === 'object'))
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{
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particle.frame = this.game.rnd.pick(this._frames);
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}
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else
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{
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particle.frame = this._frames;
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}
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if (this.autoAlpha)
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{
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particle.setAlphaData(this.alphaData);
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}
else
{
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particle.alpha = this.game.rnd.realInRange(this.minParticleAlpha, this.maxParticleAlpha);
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}
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particle.blendMode = this.blendMode;
particle.body.updateBounds();
particle.body.bounce.setTo(this.bounce.x, this.bounce.y);
particle.body.velocity.x = this.game.rnd.integerInRange(this.minParticleSpeed.x, this.maxParticleSpeed.x);
particle.body.velocity.y = this.game.rnd.integerInRange(this.minParticleSpeed.y, this.maxParticleSpeed.y);
particle.body.angularVelocity = this.game.rnd.integerInRange(this.minRotation, this.maxRotation);
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particle.body.gravity.y = this.gravity;
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particle.body.drag.x = this.particleDrag.x;
particle.body.drag.y = this.particleDrag.y;
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particle.body.angularDrag = this.angularDrag;
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particle.onEmit();
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};
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/**
* A more compact way of setting the width and height of the emitter.
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*
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* @method Phaser.Particles.Arcade.Emitter#setSize
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* @param {number} width - The desired width of the emitter (particles are spawned randomly within these dimensions).
* @param {number} height - The desired height of the emitter.
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*/
Phaser.Particles.Arcade.Emitter.prototype.setSize = function (width, height) {
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this.area.width = width;
this.area.height = height;
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};
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/**
* A more compact way of setting the X velocity range of the emitter.
* @method Phaser.Particles.Arcade.Emitter#setXSpeed
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* @param {number} [min=0] - The minimum value for this range.
* @param {number} [max=0] - The maximum value for this range.
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*/
Phaser.Particles.Arcade.Emitter.prototype.setXSpeed = function (min, max) {
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min = min || 0;
max = max || 0;
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this.minParticleSpeed.x = min;
this.maxParticleSpeed.x = max;
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};
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/**
* A more compact way of setting the Y velocity range of the emitter.
* @method Phaser.Particles.Arcade.Emitter#setYSpeed
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* @param {number} [min=0] - The minimum value for this range.
* @param {number} [max=0] - The maximum value for this range.
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*/
Phaser.Particles.Arcade.Emitter.prototype.setYSpeed = function (min, max) {
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min = min || 0;
max = max || 0;
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this.minParticleSpeed.y = min;
this.maxParticleSpeed.y = max;
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};
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/**
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* A more compact way of setting the angular velocity constraints of the particles.
*
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* @method Phaser.Particles.Arcade.Emitter#setRotation
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* @param {number} [min=0] - The minimum value for this range.
* @param {number} [max=0] - The maximum value for this range.
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*/
Phaser.Particles.Arcade.Emitter.prototype.setRotation = function (min, max) {
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min = min || 0;
max = max || 0;
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this.minRotation = min;
this.maxRotation = max;
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};
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/**
* A more compact way of setting the alpha constraints of the particles.
* The rate parameter, if set to a value above zero, lets you set the speed at which the Particle change in alpha from min to max.
* If rate is zero, which is the default, the particle won't change alpha - instead it will pick a random alpha between min and max on emit.
*
* @method Phaser.Particles.Arcade.Emitter#setAlpha
* @param {number} [min=1] - The minimum value for this range.
* @param {number} [max=1] - The maximum value for this range.
* @param {number} [rate=0] - The rate (in ms) at which the particles will change in alpha from min to max, or set to zero to pick a random alpha between the two.
* @param {number} [ease=Phaser.Easing.Linear.None] - If you've set a rate > 0 this is the easing formula applied between the min and max values.
* @param {boolean} [yoyo=false] - If you've set a rate > 0 you can set if the ease will yoyo or not (i.e. ease back to its original values)
*/
Phaser.Particles.Arcade.Emitter.prototype.setAlpha = function (min, max, rate, ease, yoyo) {
if (typeof min === 'undefined') { min = 1; }
if (typeof max === 'undefined') { max = 1; }
if (typeof rate === 'undefined') { rate = 0; }
if (typeof ease === 'undefined') { ease = Phaser.Easing.Linear.None; }
if (typeof yoyo === 'undefined') { yoyo = false; }
this.minParticleAlpha = min;
this.maxParticleAlpha = max;
this.autoAlpha = false;
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if (rate > 0 & & min !== max)
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{
var tweenData = { v: min };
var tween = this.game.make.tween(tweenData).to( { v: max }, rate, ease);
tween.yoyo(yoyo);
this.alphaData = tween.generateData(60);
// Inverse it so we don't have to do array length look-ups in Particle update loops
this.alphaData.reverse();
this.autoAlpha = true;
}
};
/**
* A more compact way of setting the scale constraints of the particles.
* The rate parameter, if set to a value above zero, lets you set the speed and ease which the Particle uses to change in scale from min to max across both axis.
* If rate is zero, which is the default, the particle won't change scale during update, instead it will pick a random scale between min and max on emit.
*
* @method Phaser.Particles.Arcade.Emitter#setScale
* @param {number} [minX=1] - The minimum value of Particle.scale.x.
* @param {number} [maxX=1] - The maximum value of Particle.scale.x.
* @param {number} [minY=1] - The minimum value of Particle.scale.y.
* @param {number} [maxY=1] - The maximum value of Particle.scale.y.
* @param {number} [rate=0] - The rate (in ms) at which the particles will change in scale from min to max, or set to zero to pick a random size between the two.
* @param {number} [ease=Phaser.Easing.Linear.None] - If you've set a rate > 0 this is the easing formula applied between the min and max values.
* @param {boolean} [yoyo=false] - If you've set a rate > 0 you can set if the ease will yoyo or not (i.e. ease back to its original values)
*/
Phaser.Particles.Arcade.Emitter.prototype.setScale = function (minX, maxX, minY, maxY, rate, ease, yoyo) {
if (typeof minX === 'undefined') { minX = 1; }
if (typeof maxX === 'undefined') { maxX = 1; }
if (typeof minY === 'undefined') { minY = 1; }
if (typeof maxY === 'undefined') { maxY = 1; }
if (typeof rate === 'undefined') { rate = 0; }
if (typeof ease === 'undefined') { ease = Phaser.Easing.Linear.None; }
if (typeof yoyo === 'undefined') { yoyo = false; }
// Reset these
this.minParticleScale = 1;
this.maxParticleScale = 1;
this._minParticleScale.set(minX, minY);
this._maxParticleScale.set(maxX, maxY);
this.autoScale = false;
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if (rate > 0 & & (minX !== maxX) || (minY !== maxY))
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{
var tweenData = { x: minX, y: minY };
var tween = this.game.make.tween(tweenData).to( { x: maxX, y: maxY }, rate, ease);
tween.yoyo(yoyo);
this.scaleData = tween.generateData(60);
// Inverse it so we don't have to do array length look-ups in Particle update loops
this.scaleData.reverse();
this.autoScale = true;
}
};
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/**
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* Change the emitters center to match the center of any object with a `center` property, such as a Sprite.
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* If the object doesn't have a center property it will be set to object.x + object.width / 2
*
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* @method Phaser.Particles.Arcade.Emitter#at
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* @param {object|Phaser.Sprite|Phaser.Image|Phaser.TileSprite|Phaser.Text|PIXI.DisplayObject} object - The object that you wish to match the center with.
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*/
Phaser.Particles.Arcade.Emitter.prototype.at = function (object) {
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if (object.center)
{
this.emitX = object.center.x;
this.emitY = object.center.y;
}
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else
{
this.emitX = object.world.x + (object.anchor.x * object.width);
this.emitY = object.world.y + (object.anchor.y * object.height);
}
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};
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/**
* @name Phaser.Particles.Arcade.Emitter#width
* @property {number} width - Gets or sets the width of the Emitter. This is the region in which a particle can be emitted.
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "width", {
get: function () {
return this.area.width;
},
set: function (value) {
this.area.width = value;
}
});
/**
* @name Phaser.Particles.Arcade.Emitter#height
* @property {number} height - Gets or sets the height of the Emitter. This is the region in which a particle can be emitted.
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "height", {
get: function () {
return this.area.height;
},
set: function (value) {
this.area.height = value;
}
});
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/**
* @name Phaser.Particles.Arcade.Emitter#x
* @property {number} x - Gets or sets the x position of the Emitter.
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "x", {
get: function () {
return this.emitX;
},
set: function (value) {
this.emitX = value;
}
});
/**
* @name Phaser.Particles.Arcade.Emitter#y
* @property {number} y - Gets or sets the y position of the Emitter.
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "y", {
get: function () {
return this.emitY;
},
set: function (value) {
this.emitY = value;
}
});
/**
* @name Phaser.Particles.Arcade.Emitter#left
* @property {number} left - Gets the left position of the Emitter.
* @readonly
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "left", {
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get: function () {
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return Math.floor(this.x - (this.area.width / 2));
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}
});
/**
* @name Phaser.Particles.Arcade.Emitter#right
* @property {number} right - Gets the right position of the Emitter.
* @readonly
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "right", {
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get: function () {
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return Math.floor(this.x + (this.area.width / 2));
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}
});
/**
* @name Phaser.Particles.Arcade.Emitter#top
* @property {number} top - Gets the top position of the Emitter.
* @readonly
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "top", {
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get: function () {
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return Math.floor(this.y - (this.area.height / 2));
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}
});
/**
* @name Phaser.Particles.Arcade.Emitter#bottom
* @property {number} bottom - Gets the bottom position of the Emitter.
* @readonly
*/
Object.defineProperty(Phaser.Particles.Arcade.Emitter.prototype, "bottom", {
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get: function () {
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return Math.floor(this.y + (this.area.height / 2));
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}
});
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Phaser Copyright © 2012-2014 Photon Storm Ltd.
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Documentation generated by < a href = "https://github.com/jsdoc3/jsdoc" > JSDoc 3.3.0-dev< / a >
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