2014-03-14 06:36:05 +00:00
<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "utf-8" >
< title > Phaser Source: math/QuadTree.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 " >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-0" >
2014-03-14 06:36:05 +00:00
< 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 " >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Animation.html" > Animation< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.AnimationManager.html" > AnimationManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.AnimationParser.html" > AnimationParser< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.BitmapData.html" > BitmapData< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.BitmapText.html" > BitmapText< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Button.html" > Button< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Cache.html" > Cache< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Camera.html" > Camera< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Canvas.html" > Canvas< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Circle.html" > Circle< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Color.html" > Color< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Device.html" > Device< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.html" > Easing< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Back.html" > Back< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Bounce.html" > Bounce< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Circular.html" > Circular< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Cubic.html" > Cubic< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Elastic.html" > Elastic< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Exponential.html" > Exponential< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Linear.html" > Linear< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Quadratic.html" > Quadratic< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Quartic.html" > Quartic< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Quintic.html" > Quintic< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Easing.Sinusoidal.html" > Sinusoidal< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Ellipse.html" > Ellipse< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Events.html" > Events< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Filter.html" > Filter< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Frame.html" > Frame< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.FrameData.html" > FrameData< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Game.html" > Game< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.GameObjectCreator.html" > GameObjectCreator< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.GameObjectFactory.html" > GameObjectFactory< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Gamepad.html" > Gamepad< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.GamepadButton.html" > GamepadButton< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Graphics.html" > Graphics< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Group.html" > Group< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Image.html" > Image< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Input.html" > Input< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.InputHandler.html" > InputHandler< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Key.html" > Key< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Keyboard.html" > Keyboard< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Line.html" > Line< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.LinkedList.html" > LinkedList< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Loader.html" > Loader< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.LoaderParser.html" > LoaderParser< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Math.html" > Math< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Mouse.html" > Mouse< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.MSPointer.html" > MSPointer< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Net.html" > Net< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
< a href = "Phaser.Particle.html" > Particle< / a >
< / li >
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Particles.html" > Particles< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Particles.Arcade.Emitter.html" > Emitter< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.html" > Physics< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Arcade.html" > Arcade< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Arcade.Body.html" > Body< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Ninja.html" > Ninja< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Ninja.AABB.html" > AABB< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Ninja.Body.html" > Body< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Ninja.Circle.html" > Circle< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.Ninja.Tile.html" > Tile< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.html" > P2< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.Body.html" > Body< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.BodyDebug.html" > BodyDebug< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.CollisionGroup.html" > CollisionGroup< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.ContactMaterial.html" > ContactMaterial< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.DistanceConstraint.html" > DistanceConstraint< / a >
< / li >
2014-04-11 12:09:28 +00:00
< li class = "class-depth-3" >
< a href = "Phaser.Physics.P2.FixtureList.html" > FixtureList< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.GearConstraint.html" > GearConstraint< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.InversePointProxy.html" > InversePointProxy< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.LockConstraint.html" > LockConstraint< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.Material.html" > Material< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.PointProxy.html" > PointProxy< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.PrismaticConstraint.html" > PrismaticConstraint< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.RevoluteConstraint.html" > RevoluteConstraint< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-3" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Physics.P2.Spring.html" > Spring< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Plugin.html" > Plugin< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.PluginManager.html" > PluginManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Point.html" > Point< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Pointer.html" > Pointer< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Polygon.html" > Polygon< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.QuadTree.html" > QuadTree< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.RandomDataGenerator.html" > RandomDataGenerator< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Rectangle.html" > Rectangle< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.RenderTexture.html" > RenderTexture< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.RequestAnimationFrame.html" > RequestAnimationFrame< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.RetroFont.html" > RetroFont< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.ScaleManager.html" > ScaleManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Signal.html" > Signal< / a >
< / li >
2014-04-11 12:09:28 +00:00
< li class = "class-depth-1" >
< a href = "Phaser.SignalBinding.html" > SignalBinding< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.SinglePad.html" > SinglePad< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Sound.html" > Sound< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.SoundManager.html" > SoundManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Sprite.html" > Sprite< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.SpriteBatch.html" > SpriteBatch< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Stage.html" > Stage< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.State.html" > State< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.StateManager.html" > StateManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Text.html" > Text< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Tile.html" > Tile< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Tilemap.html" > Tilemap< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.TilemapLayer.html" > TilemapLayer< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.TilemapParser.html" > TilemapParser< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Tileset.html" > Tileset< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.TileSprite.html" > TileSprite< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Time.html" > Time< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Timer.html" > Timer< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.TimerEvent.html" > TimerEvent< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Touch.html" > Touch< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Tween.html" > Tween< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.TweenManager.html" > TweenManager< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Utils.html" > Utils< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-2" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.Utils.Debug.html" > Debug< / a >
< / li >
2014-04-10 22:13:43 +00:00
< li class = "class-depth-1" >
2014-03-14 06:36:05 +00:00
< a href = "Phaser.World.html" > World< / a >
< / li >
< / ul >
< / li >
< / ul >
< / div >
< / div >
< div class = "row-fluid" >
< div class = "span12" >
< div id = "main" >
< h1 class = "page-title" > Source: math/QuadTree.js< / h1 >
< section >
< article >
< pre class = "sunlight-highlight-javascript linenums" > /**
* @author Richard Davey < rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Javascript QuadTree
* @version 1.0
* @author Timo Hausmann
*
* @version 1.3, March 11th 2014
* @author Richard Davey
* The original code was a conversion of the Java code posted to GameDevTuts. However I've tweaked
* it massively to add node indexing, removed lots of temp. var creation and significantly
* increased performance as a result.
*
* Original version at https://github.com/timohausmann/quadtree-js/
*/
/**
* @copyright © 2012 Timo Hausmann
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* QuadTree Constructor
*
* @class Phaser.QuadTree
* @classdesc A QuadTree implementation. The original code was a conversion of the Java code posted to GameDevTuts.
* However I've tweaked it massively to add node indexing, removed lots of temp. var creation and significantly increased performance as a result.
* Original version at https://github.com/timohausmann/quadtree-js/
* @constructor
* @param {number} x - The top left coordinate of the quadtree.
* @param {number} y - The top left coordinate of the quadtree.
* @param {number} width - The width of the quadtree in pixels.
* @param {number} height - The height of the quadtree in pixels.
* @param {number} [maxObjects=10] - The maximum number of objects per node.
* @param {number} [maxLevels=4] - The maximum number of levels to iterate to.
* @param {number} [level=0] - Which level is this?
*/
Phaser.QuadTree = function(x, y, width, height, maxObjects, maxLevels, level) {
/**
* @property {number} maxObjects - The maximum number of objects per node.
* @default
*/
this.maxObjects = 10;
/**
* @property {number} maxLevels - The maximum number of levels to break down to.
* @default
*/
this.maxLevels = 4;
/**
* @property {number} level - The current level.
*/
this.level = 0;
/**
* @property {object} bounds - Object that contains the quadtree bounds.
*/
this.bounds = {};
/**
* @property {array} objects - Array of quadtree children.
*/
this.objects = [];
/**
* @property {array} nodes - Array of associated child nodes.
*/
this.nodes = [];
this.reset(x, y, width, height, maxObjects, maxLevels, level);
};
Phaser.QuadTree.prototype = {
/**
* Resets the QuadTree.
*
* @method Phaser.QuadTree#reset
* @param {number} x - The top left coordinate of the quadtree.
* @param {number} y - The top left coordinate of the quadtree.
* @param {number} width - The width of the quadtree in pixels.
* @param {number} height - The height of the quadtree in pixels.
* @param {number} [maxObjects=10] - The maximum number of objects per node.
* @param {number} [maxLevels=4] - The maximum number of levels to iterate to.
* @param {number} [level=0] - Which level is this?
*/
reset: function (x, y, width, height, maxObjects, maxLevels, level) {
this.maxObjects = maxObjects || 10;
this.maxLevels = maxLevels || 4;
this.level = level || 0;
this.bounds = {
x: Math.round(x),
y: Math.round(y),
width: width,
height: height,
subWidth: Math.floor(width / 2),
subHeight: Math.floor(height / 2),
right: Math.round(x) + Math.floor(width / 2),
bottom: Math.round(y) + Math.floor(height / 2)
};
this.objects.length = 0;
this.nodes.length = 0;
},
/**
* Populates this quadtree with the children of the given Group. In order to be added the child must exist and have a body property.
*
* @method Phaser.QuadTree#populate
* @param {Phaser.Group} group - The Group to add to the quadtree.
*/
populate: function (group) {
group.forEach(this.populateHandler, this, true);
},
/**
* Handler for the populate method.
*
* @method Phaser.QuadTree#populateHandler
* @param {Phaser.Sprite|object} sprite - The Sprite to check.
*/
populateHandler: function (sprite) {
2014-04-11 12:09:28 +00:00
if (sprite.body & & sprite.exists)
2014-03-14 06:36:05 +00:00
{
this.insert(sprite.body);
}
},
/**
* Split the node into 4 subnodes
*
* @method Phaser.QuadTree#split
*/
split: function () {
this.level++;
// top right node
this.nodes[0] = new Phaser.QuadTree(this.bounds.right, this.bounds.y, this.bounds.subWidth, this.bounds.subHeight, this.maxObjects, this.maxLevels, this.level);
// top left node
this.nodes[1] = new Phaser.QuadTree(this.bounds.x, this.bounds.y, this.bounds.subWidth, this.bounds.subHeight, this.maxObjects, this.maxLevels, this.level);
// bottom left node
this.nodes[2] = new Phaser.QuadTree(this.bounds.x, this.bounds.bottom, this.bounds.subWidth, this.bounds.subHeight, this.maxObjects, this.maxLevels, this.level);
// bottom right node
this.nodes[3] = new Phaser.QuadTree(this.bounds.right, this.bounds.bottom, this.bounds.subWidth, this.bounds.subHeight, this.maxObjects, this.maxLevels, this.level);
},
/**
* Insert the object into the node. If the node exceeds the capacity, it will split and add all objects to their corresponding subnodes.
*
* @method Phaser.QuadTree#insert
* @param {Phaser.Physics.Arcade.Body|object} body - The Body object to insert into the quadtree. Can be any object so long as it exposes x, y, right and bottom properties.
*/
insert: function (body) {
var i = 0;
var index;
// if we have subnodes ...
if (this.nodes[0] != null)
{
index = this.getIndex(body);
if (index !== -1)
{
this.nodes[index].insert(body);
return;
}
}
this.objects.push(body);
2014-04-11 12:09:28 +00:00
if (this.objects.length > this.maxObjects & & this.level < this.maxLevels)
2014-03-14 06:36:05 +00:00
{
// Split if we don't already have subnodes
if (this.nodes[0] == null)
{
this.split();
}
// Add objects to subnodes
while (i < this.objects.length)
{
index = this.getIndex(this.objects[i]);
if (index !== -1)
{
// this is expensive - see what we can do about it
this.nodes[index].insert(this.objects.splice(i, 1)[0]);
}
else
{
i++;
}
}
}
},
/**
* Determine which node the object belongs to.
*
* @method Phaser.QuadTree#getIndex
* @param {Phaser.Rectangle|object} rect - The bounds in which to check.
* @return {number} index - Index of the subnode (0-3), or -1 if rect cannot completely fit within a subnode and is part of the parent node.
*/
getIndex: function (rect) {
// default is that rect doesn't fit, i.e. it straddles the internal quadrants
var index = -1;
2014-04-11 12:09:28 +00:00
if (rect.x < this.bounds.right & & rect.right < this.bounds.right)
2014-03-14 06:36:05 +00:00
{
2014-04-11 12:09:28 +00:00
if (rect.y < this.bounds.bottom & & rect.bottom < this.bounds.bottom)
2014-03-14 06:36:05 +00:00
{
// rect fits within the top-left quadrant of this quadtree
index = 1;
}
else if (rect.y > this.bounds.bottom)
{
// rect fits within the bottom-left quadrant of this quadtree
index = 2;
}
}
else if (rect.x > this.bounds.right)
{
// rect can completely fit within the right quadrants
2014-04-11 12:09:28 +00:00
if (rect.y < this.bounds.bottom & & rect.bottom < this.bounds.bottom)
2014-03-14 06:36:05 +00:00
{
// rect fits within the top-right quadrant of this quadtree
index = 0;
}
else if (rect.y > this.bounds.bottom)
{
// rect fits within the bottom-right quadrant of this quadtree
index = 3;
}
}
return index;
},
/**
* Return all objects that could collide with the given Sprite.
*
* @method Phaser.QuadTree#retrieve
* @param {Phaser.Sprite} sprite - The sprite to check against.
* @return {array} - Array with all detected objects.
*/
retrieve: function (sprite) {
var returnObjects = this.objects;
// sprite.body.quadTreeIndex = this.getIndex(sprite.body);
var index = this.getIndex(sprite.body);
if (this.nodes[0])
{
// If rect fits into a subnode ..
if (index !== -1)
{
returnObjects = returnObjects.concat(this.nodes[index].retrieve(sprite));
}
else
{
// If rect does not fit into a subnode, check it against all subnodes (unrolled for speed)
returnObjects = returnObjects.concat(this.nodes[0].retrieve(sprite));
returnObjects = returnObjects.concat(this.nodes[1].retrieve(sprite));
returnObjects = returnObjects.concat(this.nodes[2].retrieve(sprite));
returnObjects = returnObjects.concat(this.nodes[3].retrieve(sprite));
}
}
return returnObjects;
},
/**
* Clear the quadtree.
* @method Phaser.QuadTree#clear
*/
clear: function () {
this.objects.length = 0;
var i = this.nodes.length;
while (i--)
{
this.nodes[i].clear();
this.nodes.splice(i, 1);
}
this.nodes.length = 0;
}
};
Phaser.QuadTree.prototype.constructor = Phaser.QuadTree;
< / 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" >
2014-04-11 12:09:28 +00:00
Documentation generated by < a href = "https://github.com/jsdoc3/jsdoc" > JSDoc 3.3.0-dev< / a >
2014-04-15 14:39:23 +00:00
on Tue Apr 15 2014 02:52:21 GMT+0100 (BST) using the < a href = "https://github.com/terryweiss/docstrap" > DocStrap template< / a > .
2014-03-14 06:36:05 +00:00
< / 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( {
2014-04-10 22:13:43 +00:00
anchorName : function(i, heading, prefix) {
2014-03-14 06:36:05 +00:00
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 >
