phaser/docs/Time.js.html
2014-07-18 12:45:51 +01:00

987 lines
25 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Phaser Source: time/Time.js</title>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/sunlight.default.css">
<link type="text/css" rel="stylesheet" href="styles/site.cerulean.css">
</head>
<body>
<div class="container-fluid">
<div class="navbar navbar-fixed-top navbar-inverse">
<div class="navbar-inner">
<a class="brand" href="index.html">Phaser</a>
<ul class="nav">
<li class="dropdown">
<a href="namespaces.list.html" class="dropdown-toggle" data-toggle="dropdown">Namespaces<b
class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-0">
<a href="Phaser.html">Phaser</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="classes.list.html" class="dropdown-toggle" data-toggle="dropdown">Classes<b
class="caret"></b></a>
<ul class="dropdown-menu ">
<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.ArrayList.html">ArrayList</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.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-1">
<a href="Phaser.Device.html">Device</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.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.GamepadButton.html">GamepadButton</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.Image.html">Image</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.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.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-3">
<a href="Phaser.Particles.Arcade.Emitter.html">Emitter</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-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.Spring.html">Spring</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Plugin.html">Plugin</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.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.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.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.World.html">World</a>
</li>
</ul>
</li>
</strong>
</ul>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<div id="main">
<h1 class="page-title">Source: time/Time.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey &lt;rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Time constructor.
*
* @class Phaser.Time
* @classdesc This is the core internal game clock. It manages the elapsed time and calculation of elapsed values, used for game object motion and tweens.
* @constructor
* @param {Phaser.Game} game A reference to the currently running game.
*/
Phaser.Time = function (game) {
/**
* @property {Phaser.Game} game - Local reference to game.
*/
this.game = game;
/**
* @property {number} time - Game time counter. If you need a value for in-game calculation please use Phaser.Time.now instead.
* @protected
*/
this.time = 0;
/**
* @property {number} now - The time right now.
* @protected
*/
this.now = 0;
/**
* @property {number} elapsed - Elapsed time since the last frame (in ms).
* @protected
*/
this.elapsed = 0;
/**
* @property {number} pausedTime - Records how long the game has been paused for. Is reset each time the game pauses.
* @protected
*/
this.pausedTime = 0;
/**
* @property {boolean} advancedTiming - If true Phaser.Time will perform advanced profiling including the fps rate, fps min/max and msMin and msMax.
* @default
*/
this.advancedTiming = false;
/**
* @property {number} fps - Frames per second. Only calculated if Time.advancedTiming is true.
* @protected
*/
this.fps = 0;
/**
* @property {number} fpsMin - The lowest rate the fps has dropped to. Only calculated if Time.advancedTiming is true.
*/
this.fpsMin = 1000;
/**
* @property {number} fpsMax - The highest rate the fps has reached (usually no higher than 60fps). Only calculated if Time.advancedTiming is true.
*/
this.fpsMax = 0;
/**
* @property {number} msMin - The minimum amount of time the game has taken between two frames. Only calculated if Time.advancedTiming is true.
* @default
*/
this.msMin = 1000;
/**
* @property {number} msMax - The maximum amount of time the game has taken between two frames. Only calculated if Time.advancedTiming is true.
*/
this.msMax = 0;
/**
* @property {number} physicsElapsed - The elapsed time calculated for the physics motion updates. In a stable 60fps system this will be 0.016 every frame.
*/
this.physicsElapsed = 0;
/**
* @property {number} deltaCap - If you need to cap the delta timer, set the value here. For 60fps the delta should be 0.016, so try variances just above this.
*/
this.deltaCap = 0;
/**
* @property {number} timeCap - If the difference in time between two frame updates exceeds this value, the frame time is reset to avoid huge elapsed counts.
*/
this.timeCap = 1000;
/**
* @property {number} frames - The number of frames record in the last second. Only calculated if Time.advancedTiming is true.
*/
this.frames = 0;
/**
* @property {number} pauseDuration - Records how long the game was paused for in miliseconds.
*/
this.pauseDuration = 0;
/**
* @property {number} timeToCall - The value that setTimeout needs to work out when to next update
*/
this.timeToCall = 0;
/**
* @property {number} lastTime - Internal value used by timeToCall as part of the setTimeout loop
*/
this.lastTime = 0;
/**
* @property {Phaser.Timer} events - This is a Phaser.Timer object bound to the master clock to which you can add timed events.
*/
this.events = new Phaser.Timer(this.game, false);
/**
* @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 {array} _timers - Internal store of Phaser.Timer objects.
* @private
*/
this._timers = [];
/**
* @property {number} _len - Temp. array length variable.
* @private
*/
this._len = 0;
/**
* @property {number} _i - Temp. array counter variable.
* @private
*/
this._i = 0;
};
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.events.start();
},
/**
* 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) {
if (typeof autoDestroy === 'undefined') { autoDestroy = true; }
var timer = new Phaser.Timer(this.game, autoDestroy);
this._timers.push(timer);
return timer;
},
/**
* Remove all Timer objects, regardless of their state. Also clears all Timers from the Time.events timer.
*
* @method Phaser.Time#removeAll
*/
removeAll: function () {
for (var i = 0; i &lt; this._timers.length; i++)
{
this._timers[i].destroy();
}
this._timers = [];
this.events.removeAll();
},
/**
* Updates the game clock and if enabled the advanced timing data. This is called automatically by Phaser.Game.
*
* @method Phaser.Time#update
* @protected
* @param {number} time - The current timestamp.
*/
update: function (time) {
this.now = time;
this.timeToCall = this.game.math.max(0, 16 - (time - this.lastTime));
this.elapsed = this.now - this.time;
// spike-dislike
if (this.elapsed > this.timeCap)
{
// For some reason the time between now and the last time the game was updated was larger than our timeCap
// This can happen if the Stage.disableVisibilityChange is true and you swap tabs, which makes the raf pause.
// In this case we'll drop to some default values to stop the game timers going nuts.
this.elapsed = 1 / 60;
}
// Calculate physics elapsed, ensure it's > 0, use 1/60 as a fallback
this.physicsElapsed = this.elapsed / 1000 || 1 / 60;
if (this.deltaCap > 0 && this.physicsElapsed > this.deltaCap)
{
this.physicsElapsed = this.deltaCap;
}
if (this.advancedTiming)
{
this.msMin = this.game.math.min(this.msMin, this.elapsed);
this.msMax = this.game.math.max(this.msMax, this.elapsed);
this.frames++;
if (this.now > this._timeLastSecond + 1000)
{
this.fps = Math.round((this.frames * 1000) / (this.now - this._timeLastSecond));
this.fpsMin = this.game.math.min(this.fpsMin, this.fps);
this.fpsMax = this.game.math.max(this.fpsMax, this.fps);
this._timeLastSecond = this.now;
this.frames = 0;
}
}
this.time = this.now;
this.lastTime = time + this.timeToCall;
// Paused but still running?
if (!this.game.paused)
{
// Our internal Phaser.Timer
this.events.update(this.now);
// Any game level timers
this._i = 0;
this._len = this._timers.length;
while (this._i &lt; this._len)
{
if (this._timers[this._i].update(this.now))
{
this._i++;
}
else
{
this._timers.splice(this._i, 1);
this._len--;
}
}
}
},
/**
* Called when the game enters a paused state.
*
* @method Phaser.Time#gamePaused
* @private
*/
gamePaused: function () {
this._pauseStarted = this.now;
this.events.pause();
var i = this._timers.length;
while (i--)
{
this._timers[i]._pause();
}
},
/**
* Called when the game resumes from a paused state.
*
* @method Phaser.Time#gameResumed
* @private
*/
gameResumed: function () {
// Level out the elapsed timer to avoid spikes
this.time = this.now = Date.now();
this.pauseDuration = this.time - this._pauseStarted;
this.events.resume();
var i = this._timers.length;
while (i--)
{
this._timers[i]._resume();
}
},
/**
* The number of seconds that have elapsed since the game was started.
*
* @method Phaser.Time#totalElapsedSeconds
* @return {number} The number of seconds that have elapsed since the game was started.
*/
totalElapsedSeconds: function() {
return (this.now - this._started) * 0.001;
},
/**
* How long has passed since the given time.
*
* @method Phaser.Time#elapsedSince
* @param {number} since - The time you want to measure against.
* @return {number} The difference between the given time and now.
*/
elapsedSince: function (since) {
return this.now - since;
},
/**
* How long has passed since the given time (in seconds).
*
* @method Phaser.Time#elapsedSecondsSince
* @param {number} since - The time you want to measure (in seconds).
* @return {number} Duration between given time and now (in seconds).
*/
elapsedSecondsSince: function (since) {
return (this.now - since) * 0.001;
},
/**
* Resets the private _started value to now and removes all currently running Timers.
*
* @method Phaser.Time#reset
*/
reset: function () {
this._started = this.now;
this.removeAll();
}
};
Phaser.Time.prototype.constructor = Phaser.Time;
</pre>
</article>
</section>
</div>
<div class="clearfix"></div>
<footer>
<span class="copyright">
Phaser Copyright © 2012-2014 Photon Storm Ltd.
</span>
<br />
<span class="jsdoc-message">
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
on Fri Jul 18 2014 12:36:37 GMT+0100 (BST) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
</span>
</footer>
</div>
<br clear="both">
</div>
</div>
<script src="scripts/sunlight.js"></script>
<script src="scripts/sunlight.javascript.js"></script>
<script src="scripts/sunlight-plugin.doclinks.js"></script>
<script src="scripts/sunlight-plugin.linenumbers.js"></script>
<script src="scripts/sunlight-plugin.menu.js"></script>
<script src="scripts/jquery.min.js"></script>
<script src="scripts/jquery.scrollTo.js"></script>
<script src="scripts/jquery.localScroll.js"></script>
<script src="scripts/bootstrap-dropdown.js"></script>
<script src="scripts/toc.js"></script>
<script> Sunlight.highlightAll({lineNumbers:true, showMenu: true, enableDoclinks :true}); </script>
<script>
$( function () {
$( "#toc" ).toc( {
anchorName : function(i, heading, prefix) {
return $(heading).attr("id") || ( prefix + i );
},
selectors : "h1,h2,h3,h4",
showAndHide : false,
scrollTo : 60
} );
$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
$( "#main span[id^='toc']" ).addClass( "toc-shim" );
} );
</script>
</body>
</html>