2013-10-03 01:38:35 +00:00
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<title>Phaser Source: tween/Easing.js</title>
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2013-11-28 15:57:09 +00:00
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2013-10-25 15:54:40 +00:00
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2013-10-03 01:38:35 +00:00
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<a href="Phaser.Easing.Sinusoidal.html">Sinusoidal</a>
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2014-02-18 03:01:51 +00:00
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2013-10-25 15:54:40 +00:00
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2013-11-28 15:57:09 +00:00
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2013-10-03 01:38:35 +00:00
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2014-02-21 15:37:26 +00:00
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2013-10-25 15:54:40 +00:00
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2014-02-05 06:29:17 +00:00
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2013-10-25 15:54:40 +00:00
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2013-10-03 01:38:35 +00:00
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2014-02-08 07:24:22 +00:00
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2013-10-03 01:38:35 +00:00
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2014-02-05 06:29:17 +00:00
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2013-10-03 01:38:35 +00:00
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2013-10-25 15:54:40 +00:00
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.Arcade.Body.html">Body</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.Ninja.AABB.html">AABB</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.Ninja.Body.html">Body</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.Ninja.Circle.html">Circle</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.Ninja.Tile.html">Tile</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.P2.html">P2</a>
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2014-02-21 15:37:26 +00:00
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2014-03-14 06:36:05 +00:00
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<a href="Phaser.Physics.P2.Body.html">Body</a>
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<a href="Phaser.Physics.P2.ContactMaterial.html">ContactMaterial</a>
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<a href="Phaser.Physics.P2.DistanceConstraint.html">DistanceConstraint</a>
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<a href="Phaser.Physics.P2.GearConstraint.html">GearConstraint</a>
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<a href="Phaser.Physics.P2.InversePointProxy.html">InversePointProxy</a>
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<a href="Phaser.Physics.P2.LockConstraint.html">LockConstraint</a>
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<a href="Phaser.Physics.P2.Material.html">Material</a>
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<a href="Phaser.Physics.P2.PointProxy.html">PointProxy</a>
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<a href="Phaser.Physics.P2.PrismaticConstraint.html">PrismaticConstraint</a>
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<a href="Phaser.Physics.P2.RevoluteConstraint.html">RevoluteConstraint</a>
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<a href="Phaser.Physics.P2.Spring.html">Spring</a>
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2014-02-21 15:37:26 +00:00
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2013-10-03 01:38:35 +00:00
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<a href="Phaser.Plugin.html">Plugin</a>
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<a href="Phaser.PluginManager.html">PluginManager</a>
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<a href="Phaser.Point.html">Point</a>
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<a href="Phaser.Pointer.html">Pointer</a>
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</li>
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2013-11-07 06:10:15 +00:00
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<a href="Phaser.Polygon.html">Polygon</a>
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</li>
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2014-03-14 06:36:05 +00:00
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<li>
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<a href="Phaser.QuadTree.html">QuadTree</a>
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2013-10-03 01:38:35 +00:00
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<a href="Phaser.RandomDataGenerator.html">RandomDataGenerator</a>
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</li>
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<a href="Phaser.Rectangle.html">Rectangle</a>
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2013-10-25 15:54:40 +00:00
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<a href="Phaser.RenderTexture.html">RenderTexture</a>
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2013-10-03 01:38:35 +00:00
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<a href="Phaser.RequestAnimationFrame.html">RequestAnimationFrame</a>
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</li>
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2014-03-14 06:36:05 +00:00
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<li>
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<a href="Phaser.RetroFont.html">RetroFont</a>
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</li>
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<a href="Phaser.ScaleManager.html">ScaleManager</a>
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2013-10-03 01:38:35 +00:00
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<li>
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<a href="Phaser.Signal.html">Signal</a>
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</li>
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2014-02-05 06:29:17 +00:00
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<li>
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<a href="Phaser.SinglePad.html">SinglePad</a>
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</li>
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2013-10-03 01:38:35 +00:00
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<li>
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<a href="Phaser.Sound.html">Sound</a>
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</li>
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<li>
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<a href="Phaser.SoundManager.html">SoundManager</a>
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</li>
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2013-10-25 15:54:40 +00:00
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<li>
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<a href="Phaser.Sprite.html">Sprite</a>
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</li>
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2014-02-18 03:01:51 +00:00
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<li>
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<a href="Phaser.SpriteBatch.html">SpriteBatch</a>
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</li>
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2013-10-03 01:38:35 +00:00
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<li>
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<a href="Phaser.Stage.html">Stage</a>
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</li>
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<li>
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<a href="Phaser.State.html">State</a>
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</li>
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<li>
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<a href="Phaser.StateManager.html">StateManager</a>
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</li>
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2013-10-25 15:54:40 +00:00
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<li>
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<a href="Phaser.Text.html">Text</a>
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</li>
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2013-11-28 15:57:09 +00:00
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<li>
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<a href="Phaser.Tile.html">Tile</a>
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</li>
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<li>
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<a href="Phaser.Tilemap.html">Tilemap</a>
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</li>
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<li>
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<a href="Phaser.TilemapLayer.html">TilemapLayer</a>
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</li>
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<li>
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<a href="Phaser.TilemapParser.html">TilemapParser</a>
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</li>
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<li>
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<a href="Phaser.Tileset.html">Tileset</a>
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</li>
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2013-10-25 15:54:40 +00:00
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<li>
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<a href="Phaser.TileSprite.html">TileSprite</a>
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</li>
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2013-10-03 01:38:35 +00:00
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<li>
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<a href="Phaser.Time.html">Time</a>
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</li>
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2013-11-28 15:57:09 +00:00
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<li>
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<a href="Phaser.Timer.html">Timer</a>
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</li>
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2014-02-05 06:29:17 +00:00
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<li>
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<a href="Phaser.TimerEvent.html">TimerEvent</a>
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</li>
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2013-10-03 01:38:35 +00:00
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<li>
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<a href="Phaser.Touch.html">Touch</a>
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</li>
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<li>
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<a href="Phaser.Tween.html">Tween</a>
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</li>
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<li>
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<a href="Phaser.TweenManager.html">TweenManager</a>
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</li>
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<li>
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<a href="Phaser.Utils.html">Utils</a>
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</li>
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<li>
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<a href="Phaser.Utils.Debug.html">Debug</a>
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</li>
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<li>
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<a href="Phaser.World.html">World</a>
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</li>
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<li>
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<a href="SignalBinding.html">SignalBinding</a>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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</div>
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<div class="row-fluid">
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<div class="span12">
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<div id="main">
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<h1 class="page-title">Source: tween/Easing.js</h1>
|
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<section>
|
|
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|
<article>
|
2013-11-28 15:57:09 +00:00
|
|
|
<pre class="sunlight-highlight-javascript linenums">/* jshint curly: false */
|
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|
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|
|
/**
|
2013-10-03 01:38:35 +00:00
|
|
|
* @author Richard Davey <rich@photonstorm.com>
|
2014-02-05 06:29:17 +00:00
|
|
|
* @copyright 2014 Photon Storm Ltd.
|
2013-10-03 01:38:35 +00:00
|
|
|
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
|
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|
|
*/
|
|
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|
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|
|
|
/**
|
|
|
|
|
* A collection of easing methods defining ease-in ease-out curves.
|
|
|
|
|
*
|
|
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|
|
* @class Phaser.Easing
|
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|
*/
|
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|
|
Phaser.Easing = {
|
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|
|
|
|
|
|
|
/**
|
|
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|
|
* Linear easing.
|
|
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|
*
|
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|
|
|
* @class Phaser.Easing.Linear
|
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|
*/
|
2013-11-28 15:57:09 +00:00
|
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|
Linear: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Linear#In
|
2013-11-28 15:57:09 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
|
|
|
|
* @returns {number} k^2.
|
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|
|
*/
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|
None: function ( k ) {
|
2013-10-03 01:38:35 +00:00
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|
2013-11-28 15:57:09 +00:00
|
|
|
return k;
|
2013-10-03 01:38:35 +00:00
|
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|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
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|
2013-11-28 15:57:09 +00:00
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|
},
|
2013-10-03 01:38:35 +00:00
|
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|
|
|
/**
|
|
|
|
|
* Quadratic easing.
|
|
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|
*
|
|
|
|
|
* @class Phaser.Easing.Quadratic
|
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|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Quadratic: {
|
2013-10-03 01:38:35 +00:00
|
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|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Quadratic#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} k^2.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k * k;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Ease-out.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Quadratic#Out
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} k* (2-k).
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k * ( 2 - k );
|
2013-10-03 01:38:35 +00:00
|
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|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Quadratic#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( ( k *= 2 ) < 1 ) return 0.5 * k * k;
|
|
|
|
|
return - 0.5 * ( --k * ( k - 2 ) - 1 );
|
2013-10-03 01:38:35 +00:00
|
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|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Cubic easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Cubic
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Cubic: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Cubic ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Cubic#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k * k * k;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Cubic ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Cubic#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return --k * k * k + 1;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Cubic ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Cubic#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( ( k *= 2 ) < 1 ) return 0.5 * k * k * k;
|
|
|
|
|
return 0.5 * ( ( k -= 2 ) * k * k + 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Quartic easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Quartic
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Quartic: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quartic ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Quartic#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k * k * k * k;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quartic ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Quartic#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 1 - ( --k * k * k * k );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quartic ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Quartic#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( ( k *= 2 ) < 1) return 0.5 * k * k * k * k;
|
|
|
|
|
return - 0.5 * ( ( k -= 2 ) * k * k * k - 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Quintic easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Quintic
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Quintic: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quintic ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Quintic#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k * k * k * k * k;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quintic ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Quintic#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return --k * k * k * k * k + 1;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Quintic ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Quintic#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( ( k *= 2 ) < 1 ) return 0.5 * k * k * k * k * k;
|
|
|
|
|
return 0.5 * ( ( k -= 2 ) * k * k * k * k + 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Sinusoidal easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Sinusoidal
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Sinusoidal: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Sinusoidal ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Sinusoidal#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 1 - Math.cos( k * Math.PI / 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Sinusoidal ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Sinusoidal#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return Math.sin( k * Math.PI / 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Sinusoidal ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Sinusoidal#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 0.5 * ( 1 - Math.cos( Math.PI * k ) );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Exponential easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Exponential
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Exponential: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Exponential ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Exponential#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k === 0 ? 0 : Math.pow( 1024, k - 1 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Exponential ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Exponential#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return k === 1 ? 1 : 1 - Math.pow( 2, - 10 * k );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Exponential ease-in/out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Exponential#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( k === 0 ) return 0;
|
|
|
|
|
if ( k === 1 ) return 1;
|
|
|
|
|
if ( ( k *= 2 ) < 1 ) return 0.5 * Math.pow( 1024, k - 1 );
|
|
|
|
|
return 0.5 * ( - Math.pow( 2, - 10 * ( k - 1 ) ) + 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Circular easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Circular
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Circular: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Circular ease-in.
|
|
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Circular#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 1 - Math.sqrt( 1 - k * k );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Circular ease-out.
|
|
|
|
|
*
|
|
|
|
|
* @method Phaser.Easing.Circular#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
|
|
|
|
*/
|
|
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return Math.sqrt( 1 - ( --k * k ) );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Circular ease-in/out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Circular#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( ( k *= 2 ) < 1) return - 0.5 * ( Math.sqrt( 1 - k * k) - 1);
|
|
|
|
|
return 0.5 * ( Math.sqrt( 1 - ( k -= 2) * k) + 1);
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Elastic easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Elastic
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Elastic: {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Elastic ease-in.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Elastic#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
In: function ( k ) {
|
|
|
|
|
|
|
|
|
|
var s, a = 0.1, p = 0.4;
|
|
|
|
|
if ( k === 0 ) return 0;
|
|
|
|
|
if ( k === 1 ) return 1;
|
|
|
|
|
if ( !a || a < 1 ) { a = 1; s = p / 4; }
|
|
|
|
|
else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
|
|
|
|
|
return - ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );
|
|
|
|
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Elastic ease-out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Elastic#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Out: function ( k ) {
|
|
|
|
|
|
|
|
|
|
var s, a = 0.1, p = 0.4;
|
|
|
|
|
if ( k === 0 ) return 0;
|
|
|
|
|
if ( k === 1 ) return 1;
|
|
|
|
|
if ( !a || a < 1 ) { a = 1; s = p / 4; }
|
|
|
|
|
else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
|
|
|
|
|
return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 );
|
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|
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},
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/**
|
|
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|
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* Elastic ease-in/out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Elastic#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
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* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
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*/
|
2013-11-28 15:57:09 +00:00
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|
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InOut: function ( k ) {
|
|
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|
|
var s, a = 0.1, p = 0.4;
|
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|
if ( k === 0 ) return 0;
|
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|
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if ( k === 1 ) return 1;
|
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|
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if ( !a || a < 1 ) { a = 1; s = p / 4; }
|
|
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else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
|
|
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|
if ( ( k *= 2 ) < 1 ) return - 0.5 * ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );
|
|
|
|
|
return a * Math.pow( 2, -10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) * 0.5 + 1;
|
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}
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},
|
2013-10-03 01:38:35 +00:00
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|
|
/**
|
|
|
|
|
* Back easing.
|
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|
*
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|
|
* @class Phaser.Easing.Back
|
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|
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*/
|
2013-11-28 15:57:09 +00:00
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|
|
Back: {
|
2013-10-03 01:38:35 +00:00
|
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|
|
2013-11-28 15:57:09 +00:00
|
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/**
|
|
|
|
|
* Back ease-in.
|
2014-03-14 06:36:05 +00:00
|
|
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*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Back#In
|
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|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
var s = 1.70158;
|
|
|
|
|
return k * k * ( ( s + 1 ) * k - s );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Back ease-out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Back#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
var s = 1.70158;
|
|
|
|
|
return --k * k * ( ( s + 1 ) * k + s ) + 1;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Back ease-in/out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Back#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
var s = 1.70158 * 1.525;
|
|
|
|
|
if ( ( k *= 2 ) < 1 ) return 0.5 * ( k * k * ( ( s + 1 ) * k - s ) );
|
|
|
|
|
return 0.5 * ( ( k -= 2 ) * k * ( ( s + 1 ) * k + s ) + 2 );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Bounce easing.
|
|
|
|
|
*
|
|
|
|
|
* @class Phaser.Easing.Bounce
|
|
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Bounce: {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Bounce ease-in.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2014-03-28 01:42:49 +00:00
|
|
|
* @method Phaser.Easing.Bounce#In
|
|
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
In: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 1 - Phaser.Easing.Bounce.Out( 1 - k );
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Bounce ease-out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Bounce#Out
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
Out: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( k < ( 1 / 2.75 ) ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 7.5625 * k * k;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
} else if ( k < ( 2 / 2.75 ) ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
} else if ( k < ( 2.5 / 2.75 ) ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
} else {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
},
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
/**
|
|
|
|
|
* Bounce ease-in/out.
|
2014-03-14 06:36:05 +00:00
|
|
|
*
|
2013-11-28 15:57:09 +00:00
|
|
|
* @method Phaser.Easing.Bounce#InOut
|
2014-03-28 01:42:49 +00:00
|
|
|
* @param {number} k - The value to be tweened.
|
2013-11-28 15:57:09 +00:00
|
|
|
* @returns {number} The tweened value.
|
2014-03-14 06:36:05 +00:00
|
|
|
*/
|
2013-11-28 15:57:09 +00:00
|
|
|
InOut: function ( k ) {
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
if ( k < 0.5 ) return Phaser.Easing.Bounce.In( k * 2 ) * 0.5;
|
|
|
|
|
return Phaser.Easing.Bounce.Out( k * 2 - 1 ) * 0.5 + 0.5;
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
2013-11-28 15:57:09 +00:00
|
|
|
}
|
2013-10-03 01:38:35 +00:00
|
|
|
|
|
|
|
|
};
|
|
|
|
|
</pre>
|
|
|
|
|
</article>
|
|
|
|
|
</section>
|
|
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<div class="clearfix"></div>
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<footer>
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|
|
<span class="copyright">
|
2014-02-05 06:29:17 +00:00
|
|
|
Phaser Copyright © 2012-2014 Photon Storm Ltd.
|
2013-10-03 01:38:35 +00:00
|
|
|
</span>
|
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|
<br />
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<span class="jsdoc-message">
|
2013-10-25 15:54:40 +00:00
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
|
2014-03-28 01:42:49 +00:00
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on Fri Mar 28 2014 01:41:22 GMT-0000 (GMT) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
|
2013-10-03 01:38:35 +00:00
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2014-03-14 06:36:05 +00:00
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2013-10-03 01:38:35 +00:00
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