@azerion/phaser
Version:
A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.
1,618 lines (1,263 loc) • 59.8 kB
HTML
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<title>Phaser Source: src/time/Time.js</title>
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</head>
<body>
<div class="container-fluid">
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<div style="position: absolute; width: 143px; height: 31px; right: 10px; top: 10px; z-index: 1050"><a href="http://phaser.io"><img src="img/phaser.png" border="0" /></a></div>
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<a class="brand" href="index.html">Phaser API</a>
<ul class="nav">
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<ul class="dropdown-menu ">
<li class="class-depth-0">
<a href="Phaser.html">Phaser</a>
</li>
<li class="class-depth-0">
<a href="PIXI.html">PIXI</a>
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</ul>
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<a href="classes.list.html" class="dropdown-toggle" data-toggle="dropdown">Classes<b
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<ul class="dropdown-menu ">
<li class="class-depth-0">
<a href="Event.html">Event</a>
</li>
<li class="class-depth-0">
<a href="EventTarget.html">EventTarget</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Animation.html">Animation</a>
</li>
<li class="class-depth-1">
<a href="Phaser.AnimationManager.html">AnimationManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.AnimationParser.html">AnimationParser</a>
</li>
<li class="class-depth-1">
<a href="Phaser.ArraySet.html">ArraySet</a>
</li>
<li class="class-depth-1">
<a href="Phaser.ArrayUtils.html">ArrayUtils</a>
</li>
<li class="class-depth-1">
<a href="Phaser.AudioSprite.html">AudioSprite</a>
</li>
<li class="class-depth-1">
<a href="Phaser.BitmapData.html">BitmapData</a>
</li>
<li class="class-depth-1">
<a href="Phaser.BitmapText.html">BitmapText</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Bullet.html">Bullet</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Button.html">Button</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Cache.html">Cache</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Camera.html">Camera</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Canvas.html">Canvas</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Circle.html">Circle</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Color.html">Color</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Angle.html">Angle</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Animation.html">Animation</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.AutoCull.html">AutoCull</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Bounds.html">Bounds</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.BringToTop.html">BringToTop</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Core.html">Core</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Crop.html">Crop</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Delta.html">Delta</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Destroy.html">Destroy</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.FixedToCamera.html">FixedToCamera</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Health.html">Health</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.InCamera.html">InCamera</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.InputEnabled.html">InputEnabled</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.InWorld.html">InWorld</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.LifeSpan.html">LifeSpan</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.LoadTexture.html">LoadTexture</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Overlap.html">Overlap</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.PhysicsBody.html">PhysicsBody</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Reset.html">Reset</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.ScaleMinMax.html">ScaleMinMax</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Component.Smoothed.html">Smoothed</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Create.html">Create</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Creature.html">Creature</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Device.html">Device</a>
</li>
<li class="class-depth-1">
<a href="Phaser.DeviceButton.html">DeviceButton</a>
</li>
<li class="class-depth-1">
<a href="Phaser.DOM.html">DOM</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Easing.html">Easing</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Back.html">Back</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Bounce.html">Bounce</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Circular.html">Circular</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Cubic.html">Cubic</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Elastic.html">Elastic</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Exponential.html">Exponential</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Linear.html">Linear</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Quadratic.html">Quadratic</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Quartic.html">Quartic</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Quintic.html">Quintic</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Easing.Sinusoidal.html">Sinusoidal</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Ellipse.html">Ellipse</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Events.html">Events</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Filter.html">Filter</a>
</li>
<li class="class-depth-1">
<a href="Phaser.FlexGrid.html">FlexGrid</a>
</li>
<li class="class-depth-1">
<a href="Phaser.FlexLayer.html">FlexLayer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Frame.html">Frame</a>
</li>
<li class="class-depth-1">
<a href="Phaser.FrameData.html">FrameData</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Game.html">Game</a>
</li>
<li class="class-depth-1">
<a href="Phaser.GameObjectCreator.html">GameObjectCreator</a>
</li>
<li class="class-depth-1">
<a href="Phaser.GameObjectFactory.html">GameObjectFactory</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Gamepad.html">Gamepad</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Graphics.html">Graphics</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Group.html">Group</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Hermite.html">Hermite</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Image.html">Image</a>
</li>
<li class="class-depth-1">
<a href="Phaser.ImageCollection.html">ImageCollection</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Input.html">Input</a>
</li>
<li class="class-depth-1">
<a href="Phaser.InputHandler.html">InputHandler</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Key.html">Key</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Keyboard.html">Keyboard</a>
</li>
<li class="class-depth-1">
<a href="Phaser.KeyCode.html">KeyCode</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Line.html">Line</a>
</li>
<li class="class-depth-1">
<a href="Phaser.LinkedList.html">LinkedList</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Loader.html">Loader</a>
</li>
<li class="class-depth-1">
<a href="Phaser.LoaderParser.html">LoaderParser</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Math.html">Math</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Matrix.html">Matrix</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Mouse.html">Mouse</a>
</li>
<li class="class-depth-1">
<a href="Phaser.MSPointer.html">MSPointer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Net.html">Net</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Particle.html">Particle</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Particles.html">Particles</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Particles.Arcade.html">Arcade</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Particles.Arcade.Emitter.html">Emitter</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Path.html">Path</a>
</li>
<li class="class-depth-1">
<a href="Phaser.PathFollower.html">PathFollower</a>
</li>
<li class="class-depth-1">
<a href="Phaser.PathPoint.html">PathPoint</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Physics.html">Physics</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Physics.Arcade.html">Arcade</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Arcade.Body.html">Body</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Arcade.TilemapCollision.html">TilemapCollision</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Physics.Ninja.html">Ninja</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.AABB.html">AABB</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Body.html">Body</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Circle.html">Circle</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Tile.html">Tile</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Physics.P2.html">P2</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.Body.html">Body</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.BodyDebug.html">BodyDebug</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.CollisionGroup.html">CollisionGroup</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.ContactMaterial.html">ContactMaterial</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.DistanceConstraint.html">DistanceConstraint</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.FixtureList.html">FixtureList</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.GearConstraint.html">GearConstraint</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.InversePointProxy.html">InversePointProxy</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.LockConstraint.html">LockConstraint</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.Material.html">Material</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.PointProxy.html">PointProxy</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.PrismaticConstraint.html">PrismaticConstraint</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.RevoluteConstraint.html">RevoluteConstraint</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.RotationalSpring.html">RotationalSpring</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.P2.Spring.html">Spring</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Plugin.html">Plugin</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Plugin.PathManager.html">PathManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.PluginManager.html">PluginManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Point.html">Point</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Pointer.html">Pointer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.PointerMode.html">PointerMode</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Polygon.html">Polygon</a>
</li>
<li class="class-depth-1">
<a href="Phaser.QuadTree.html">QuadTree</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RandomDataGenerator.html">RandomDataGenerator</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Rectangle.html">Rectangle</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RenderTexture.html">RenderTexture</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RequestAnimationFrame.html">RequestAnimationFrame</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RetroFont.html">RetroFont</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Rope.html">Rope</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RoundedRectangle.html">RoundedRectangle</a>
</li>
<li class="class-depth-1">
<a href="Phaser.ScaleManager.html">ScaleManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Signal.html">Signal</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SignalBinding_.html">SignalBinding</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SinglePad.html">SinglePad</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Sound.html">Sound</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SoundManager.html">SoundManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Sprite.html">Sprite</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SpriteBatch.html">SpriteBatch</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Stage.html">Stage</a>
</li>
<li class="class-depth-1">
<a href="Phaser.State.html">State</a>
</li>
<li class="class-depth-1">
<a href="Phaser.StateManager.html">StateManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Text.html">Text</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tile.html">Tile</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tilemap.html">Tilemap</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TilemapLayer.html">TilemapLayer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TilemapParser.html">TilemapParser</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tileset.html">Tileset</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TileSprite.html">TileSprite</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Time.html">Time</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Timer.html">Timer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TimerEvent.html">TimerEvent</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Touch.html">Touch</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tween.html">Tween</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TweenData.html">TweenData</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TweenManager.html">TweenManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Utils.html">Utils</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Utils.Debug.html">Debug</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Video.html">Video</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Weapon.html">Weapon</a>
</li>
<li class="class-depth-1">
<a href="Phaser.World.html">World</a>
</li>
<li class="class-depth-1">
<a href="PIXI.AbstractFilter.html">AbstractFilter</a>
</li>
<li class="class-depth-1">
<a href="PIXI.BaseTexture.html">BaseTexture</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasBuffer.html">CanvasBuffer</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasGraphics.html">CanvasGraphics</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasMaskManager.html">CanvasMaskManager</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasPool.html">CanvasPool</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasRenderer.html">CanvasRenderer</a>
</li>
<li class="class-depth-1">
<a href="PIXI.CanvasTinter.html">CanvasTinter</a>
</li>
<li class="class-depth-1">
<a href="PIXI.ComplexPrimitiveShader.html">ComplexPrimitiveShader</a>
</li>
<li class="class-depth-1">
<a href="PIXI.DisplayObjectContainer.html">DisplayObjectContainer</a>
</li>
<li class="class-depth-1">
<a href="PIXI.EarCut.html">EarCut</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Event.html">Event</a>
</li>
<li class="class-depth-1">
<a href="PIXI.EventTarget.html">EventTarget</a>
</li>
<li class="class-depth-1">
<a href="PIXI.FilterTexture.html">FilterTexture</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Graphics.html">Graphics</a>
</li>
<li class="class-depth-1">
<a href="PIXI.GraphicsData.html">GraphicsData</a>
</li>
<li class="class-depth-1">
<a href="PIXI.PIXI.html">PIXI</a>
</li>
<li class="class-depth-2">
<a href="PIXI.PIXI.DisplayObject.html">DisplayObject</a>
</li>
<li class="class-depth-1">
<a href="PIXI.PixiFastShader.html">PixiFastShader</a>
</li>
<li class="class-depth-1">
<a href="PIXI.PixiShader.html">PixiShader</a>
</li>
<li class="class-depth-1">
<a href="PIXI.PrimitiveShader.html">PrimitiveShader</a>
</li>
<li class="class-depth-1">
<a href="PIXI.RenderTexture.html">RenderTexture</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Rope.html">Rope</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Sprite.html">Sprite</a>
</li>
<li class="class-depth-1">
<a href="PIXI.SpriteBatch.html">SpriteBatch</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Strip.html">Strip</a>
</li>
<li class="class-depth-1">
<a href="PIXI.StripShader.html">StripShader</a>
</li>
<li class="class-depth-1">
<a href="PIXI.Texture.html">Texture</a>
</li>
<li class="class-depth-1">
<a href="PIXI.TilingSprite.html">TilingSprite</a>
</li>
<li class="class-depth-1">
<a href="PIXI.WebGLBlendModeManager.html">WebGLBlendModeManager</a>
</li>
<li class="class-depth-1">
<a href="PIXI.WebGLFastSpriteBatch.html">WebGLFastSpriteBatch</a>
</li>
<li class="class-depth-1">
<a href="PIXI.WebGLFilterManager.html">WebGLFilterManager</a>
</li>
<li class="class-depth-1">
<a href="PIXI.WebGLRenderer.html">WebGLRenderer</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="global.html" class="dropdown-toggle" data-toggle="dropdown">Global<b
class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-0">
<a href="global.html#ANGLE_DOWN">ANGLE_DOWN</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_LEFT">ANGLE_LEFT</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_NORTH_EAST">ANGLE_NORTH_EAST</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_NORTH_WEST">ANGLE_NORTH_WEST</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_RIGHT">ANGLE_RIGHT</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_SOUTH_EAST">ANGLE_SOUTH_EAST</a>
</li>
<li class="class-depth-0">
<a href="global.html#ANGLE_SOUTH_WEST">ANGLE_SOUTH_WEST</a>
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<div id="main">
<h1 class="page-title">Source: src/time/Time.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2016 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* This is the core internal game clock.
*
* It manages the elapsed time and calculation of elapsed values, used for game object motion and tweens,
* and also handles the standard Timer pool.
*
* To create a general timed event, use the master {@link Phaser.Timer} accessible through {@link Phaser.Time.events events}.
*
* There are different *types* of time in Phaser:
*
* - ***Game time*** always runs at the speed of time in real life.
*
* Unlike wall-clock time, *game time stops when Phaser is paused*.
*
* Game time is used for {@link Phaser.Timer timer events}.
*
* - ***Physics time*** represents the amount of time given to physics calculations.
*
* *When {@link #slowMotion} is in effect physics time runs slower than game time.*
* Like game time, physics time stops when Phaser is paused.
*
* Physics time is used for physics calculations and {@link Phaser.Tween tweens}.
*
* - {@link https://en.wikipedia.org/wiki/Wall-clock_time ***Wall-clock time***} represents the duration between two events in real life time.
*
* This time is independent of Phaser and always progresses, regardless of if Phaser is paused.
*
* @class Phaser.Time
* @constructor
* @param {Phaser.Game} game A reference to the currently running game.
*/
Phaser.Time = function (game) {
/**
* @property {Phaser.Game} game - Local reference to game.
* @protected
*/
this.game = game;
/**
* The `Date.now()` value when the time was last updated.
* @property {integer} time
* @protected
*/
this.time = 0;
/**
* The `now` when the previous update occurred.
* @property {number} prevTime
* @protected
*/
this.prevTime = 0;
/**
* An increasing value representing cumulative milliseconds since an undisclosed epoch.
*
* While this value is in milliseconds and can be used to compute time deltas,
* it must must _not_ be used with `Date.now()` as it may not use the same epoch / starting reference.
*
* The source may either be from a high-res source (eg. if RAF is available) or the standard Date.now;
* the value can only be relied upon within a particular game instance.
*
* @property {number} now
* @protected
*/
this.now = 0;
/**
* Elapsed time since the last time update, in milliseconds, based on `now`.
*
* This value _may_ include time that the game is paused/inactive.
*
* _Note:_ This is updated only once per game loop - even if multiple logic update steps are done.
* Use {@link Phaser.Timer#physicsTime physicsTime} as a basis of game/logic calculations instead.
*
* @property {number} elapsed
* @see Phaser.Time.time
* @protected
*/
this.elapsed = 0;
/**
* The time in ms since the last time update, in milliseconds, based on `time`.
*
* This value is corrected for game pauses and will be "about zero" after a game is resumed.
*
* _Note:_ This is updated once per game loop - even if multiple logic update steps are done.
* Use {@link Phaser.Timer#physicsTime physicsTime} as a basis of game/logic calculations instead.
*
* @property {integer} elapsedMS
* @protected
*/
this.elapsedMS = 0;
/**
* The physics update delta, in fractional seconds.
*
* This should be used as an applicable multiplier by all logic update steps (eg. `preUpdate/postUpdate/update`)
* to ensure consistent game timing. Game/logic timing can drift from real-world time if the system
* is unable to consistently maintain the desired FPS.
*
* With fixed-step updates this is normally equivalent to `1.0 / desiredFps`.
*
* @property {number} physicsElapsed
*/
this.physicsElapsed = 1 / 60;
/**
* The physics update delta, in milliseconds - equivalent to `physicsElapsed * 1000`.
*
* @property {number} physicsElapsedMS
*/
this.physicsElapsedMS = (1 / 60) * 1000;
/**
* The desiredFps multiplier as used by Game.update.
* @property {integer} desiredFpsMult
* @protected
*/
this.desiredFpsMult = 1.0 / 60;
/**
* The desired frame rate of the game.
*
* This is used is used to calculate the physic/logic multiplier and how to apply catch-up logic updates.
*
* @property {number} _desiredFps
* @private
* @default
*/
this._desiredFps = 60;
/**
* The suggested frame rate for your game, based on an averaged real frame rate.
* This value is only populated if `Time.advancedTiming` is enabled.
*
* _Note:_ This is not available until after a few frames have passed; until then
* it's set to the same value as desiredFps.
*
* @property {number} suggestedFps
* @default
*/
this.suggestedFps = this.desiredFps;
/**
* Scaling factor to make the game move smoothly in slow motion
* - 1.0 = normal speed
* - 2.0 = half speed
* @property {number} slowMotion
* @default
*/
this.slowMotion = 1.0;
/**
* If true then advanced profiling, including the fps rate, fps min/max, suggestedFps and msMin/msMax are updated.
* @property {boolean} advancedTiming
* @default
*/
this.advancedTiming = false;
/**
* Advanced timing result: The number of render frames record in the last second.
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* @property {integer} frames
* @readonly
*/
this.frames = 0;
/**
* Advanced timing result: Frames per second.
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* @property {number} fps
* @readonly
*/
this.fps = 0;
/**
* Advanced timing result: The lowest rate the fps has dropped to.
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* This value can be manually reset.
* @property {number} fpsMin
*/
this.fpsMin = 1000;
/**
* Advanced timing result: The highest rate the fps has reached (usually no higher than 60fps).
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* This value can be manually reset.
* @property {number} fpsMax
*/
this.fpsMax = 0;
/**
* Advanced timing result: The minimum amount of time the game has taken between consecutive frames.
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* This value can be manually reset.
* @property {number} msMin
* @default
*/
this.msMin = 1000;
/**
* Advanced timing result: The maximum amount of time the game has taken between consecutive frames.
*
* Only calculated if {@link Phaser.Time#advancedTiming advancedTiming} is enabled.
* This value can be manually reset.
* @property {number} msMax
*/
this.msMax = 0;
/**
* Records how long the game was last paused, in milliseconds.
* (This is not updated until the game is resumed.)
* @property {number} pauseDuration
*/
this.pauseDuration = 0;
/**
* @property {number} timeToCall - The value that setTimeout needs to work out when to next update
* @protected
*/
this.timeToCall = 0;
/**
* @property {number} timeExpected - The time when the next call is expected when using setTimer to control the update loop
* @protected
*/
this.timeExpected = 0;
/**
* A {@link Phaser.Timer} object bound to the master clock (this Time object) which events can be added to.
* @property {Phaser.Timer} events
*/
this.events = new Phaser.Timer(this.game, false);
/**
* @property {number} _frameCount - count the number of calls to time.update since the last suggestedFps was calculated
* @private
*/
this._frameCount = 0;
/**
* @property {number} _elapsedAcumulator - sum of the elapsed time since the last suggestedFps was calculated
* @private
*/
this._elapsedAccumulator = 0;
/**
* @property {number} _started - The time at which the Game instance started.
* @private
*/
this._started = 0;
/**
* @property {number} _timeLastSecond - The time (in ms) that the last second counter ticked over.
* @private
*/
this._timeLastSecond = 0;
/**
* @property {number} _pauseStarted - The time the game started being paused.
* @private
*/
this._pauseStarted = 0;
/**
* @property {boolean} _justResumed - Internal value used to recover from the game pause state.
* @private
*/
this._justResumed = false;
/**
* @property {Phaser.Timer[]} _timers - Internal store of Phaser.Timer objects.
* @private
*/
this._timers = [];
};
Phaser.Time.prototype = {
/**
* Called automatically by Phaser.Game after boot. Should not be called directly.
*
* @method Phaser.Time#boot
* @protected
*/
boot: function () {
this._started = Date.now();
this.time = Date.now();
this.events.start();
this.timeExpected = this.time;
},
/**
* Adds an existing Phaser.Timer object to the Timer pool.
*
* @method Phaser.Time#add
* @param {Phaser.Timer} timer - An existing Phaser.Timer object.
* @return {Phaser.Timer} The given Phaser.Timer object.
*/
add: function (timer) {
this._timers.push(timer);
return timer;
},
/**
* Creates a new stand-alone Phaser.Timer object.
*
* @method Phaser.Time#create
* @param {boolean} [autoDestroy=true] - A Timer that is set to automatically destroy itself will do so after all of its events have been dispatched (assuming no looping events).
* @return {Phaser.Timer} The Timer object that was created.
*/
create: function (autoDestroy) {