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1 / 0
//-> Infinity

-1 / 0
//-> -Infinity

0 / 0
//-> NaN

Infinity === Infinity

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/* jQuery Quantum Pub/Sub
 * -- from --
 * jQuery Tiny Pub/Sub v0.7 (http://benalman.com)
 * Copyright (c) 2011 "Cowboy" Ben Alman; Licensed MIT, GPL */

(function( $ ) {

  var o     = $( {} ),
      fn    = $.fn,
      proxy = $.proxy;

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Object.assign ?= (target, sources...) ->

  unless target?
    throw new TypeError "Cannot convert undefined or null to object"

  output = Object target

  for source in sources when source?
    for own key of source
      output[key] = source[key]

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	alive	exists	fresh	health	renderable	visible
sprite.exists = false		❌				❌
sprite.exists = true		✔️				✔️
sprite.kill()	❌	❌				❌
sprite.revive(…)	✔️	✔️		1*		✔️
sprite.reset(…)	✔️	✔️	✔️	1*	✔️	✔️
group.create(…)	✔️*	✔️*				✔️*
group.createMultiple(…)	❌*	❌*				❌*
group.resetChild(…, x, y)	✔️	✔️	✔️	1	✔️	✔️

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Boolean attributes

The presence of a boolean attribute on an element represents the true value, and the absence of the attribute represents the false value. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace. The values "true" and "false" are not allowed on boolean attributes. To represent a false value, the attribute has to be omitted altogether.

• allowfullscreen
• async
• autofocus
• autoplay
• checked

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Results of collide(sprite1, sprite2) or overlap(sprite1, sprite2).

Body 1	Body 2	collide	overlap	embedded	touching.none	overlapX/Y	separation¹	acceleration¹
sprite.exists=false		false	false
enable=false		false	false
checkCollision.none=true		false	false
immovable=true		true	true		false	≠ 0	no	no
moves=false		true	true		false	≠ 0	yes	no²
bounce³ is 0

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/**
 * Renders the content and empties the current batch.
 *
 * Modified for {@link https://github.com/photonstorm/phaser-ce/issues/194 WebGL: INVALID_VALUE: vertexAttribPointer: index out of range (Ubuntu)}.
 *
 * @method PIXI.WebGLSpriteBatch#flush
 */
PIXI.WebGLSpriteBatch.prototype.flush = function () {
    // If the batch is length 0 then return as there is nothing to draw
    if (this.currentBatchSize === 0) {

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declare type CallCallback = (item: Phaser.GameObjects.GameObject)=>void;

declare type GridAlignConfig = {
    /**
     * The width of the grid in items (not pixels). -1 means lay all items out horizontally, regardless of quantity.
     *                                  If both this value and height are set to -1 then this value overrides it and the `height` value is ignored.
     */
    width?: integer;
    /**
     * The height of the grid in items (not pixels). -1 means lay all items out vertically, regardless of quantity.

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new Phaser.Game(/* ... */);

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Scene control

Calls without a key argument

These affect the calling scene only.

Example:

this.scene.start()