2014-03-14 06:36:05 +00:00
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< h1 class = "page-title" > Class: QuadTree< / h1 >
< section >
< header >
< h2 >
< span class = "ancestors" > < a href = "Phaser.html" > Phaser< / a > .< / span >
QuadTree
< / h2 >
< div class = "class-description" > < p > 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 < a href = "https://github.com/timohausmann/quadtree-js/" > https://github.com/timohausmann/quadtree-js/< / a > < / p > < / div >
< / header >
< article >
< div class = "container-overview" >
< dt >
< h4 class = "name" id = "QuadTree" > < span class = "type-signature" > < / span > new QuadTree< span class = "signature" > (x, y, width, height, < span class = "optional" > maxObjects< / span > , < span class = "optional" > maxLevels< / span > , < span class = "optional" > level< / span > )< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > QuadTree Constructor< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Argument< / th >
< th > Default< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > x< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The top left coordinate of the quadtree.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > y< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The top left coordinate of the quadtree.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > width< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The width of the quadtree in pixels.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > height< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The height of the quadtree in pixels.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > maxObjects< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
10
< / td >
< td class = "description last" > < p > The maximum number of objects per node.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > maxLevels< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
4
< / td >
< td class = "description last" > < p > The maximum number of levels to iterate to.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > level< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
0
< / td >
< td class = "description last" > < p > Which level is this?< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-60" > line 60< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< / div >
< h3 class = "subsection-title" > Members< / h3 >
< dl >
< dt >
< h4 class = "name" id = "bounds" > < span class = "type-signature" > < / span > bounds< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > bounds< / code > < / td >
< td class = "type" >
< span class = "param-type" > object< / span >
< / td >
< td class = "description last" > < p > Object that contains the quadtree bounds.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-82" > line 82< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "level" > < span class = "type-signature" > < / span > level< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > level< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "description last" > < p > The current level.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-77" > line 77< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "maxLevels" > < span class = "type-signature" > < / span > maxLevels< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > maxLevels< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "description last" > < p > The maximum number of levels to break down to.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-default" > Default Value:< / dt >
< dd class = "tag-default" > < ul class = "dummy" > < li > 4< / li > < / ul > < / dd >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-72" > line 72< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "maxObjects" > < span class = "type-signature" > < / span > maxObjects< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > maxObjects< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "description last" > < p > The maximum number of objects per node.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-default" > Default Value:< / dt >
< dd class = "tag-default" > < ul class = "dummy" > < li > 10< / li > < / ul > < / dd >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-66" > line 66< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "nodes" > < span class = "type-signature" > < / span > nodes< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > nodes< / code > < / td >
< td class = "type" >
< span class = "param-type" > array< / span >
< / td >
< td class = "description last" > < p > Array of associated child nodes.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-92" > line 92< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "objects" > < span class = "type-signature" > < / span > objects< span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< dl class = "details" >
< h5 class = "subsection-title" > Properties:< / h5 >
< dl >
< table class = "props table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > objects< / code > < / td >
< td class = "type" >
< span class = "param-type" > array< / span >
< / td >
< td class = "description last" > < p > Array of quadtree children.< / p > < / td >
< / tr >
< / tbody >
< / table >
< / dl >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-87" > line 87< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< / dl >
< h3 class = "subsection-title" > Methods< / h3 >
< dl >
< dt >
< h4 class = "name" id = "clear" > < span class = "type-signature" > < / span > clear< span class = "signature" > ()< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Clear the quadtree.< / p >
< / div >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-315" > line 315< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "getIndex" > < span class = "type-signature" > < / span > getIndex< span class = "signature" > (rect)< / span > < span class = "type-signature" > → {number}< / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Determine which node the object belongs to.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > rect< / code > < / td >
< td class = "type" >
< span class = "param-type" > < a href = "Phaser.Rectangle.html" > Phaser.Rectangle< / a > < / span >
|
< span class = "param-type" > object< / span >
< / td >
< td class = "description last" > < p > The bounds in which to check.< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-236" > line 236< / a >
< / li > < / ul > < / dd >
< / dl >
< h5 > Returns:< / h5 >
< div class = "param-desc" >
< p > index - Index of the subnode (0-3), or -1 if rect cannot completely fit within a subnode and is part of the parent node.< / p >
< / div >
< dl >
< dt >
Type
< / dt >
< dd >
< span class = "param-type" > number< / span >
< / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "insert" > < span class = "type-signature" > < / span > insert< span class = "signature" > (body)< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Insert the object into the node. If the node exceeds the capacity, it will split and add all objects to their corresponding subnodes.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > body< / code > < / td >
< td class = "type" >
< span class = "param-type" > < a href = "Phaser.Physics.Arcade.Body.html" > Phaser.Physics.Arcade.Body< / a > < / span >
|
< span class = "param-type" > object< / span >
< / td >
< td class = "description last" > < p > The Body object to insert into the quadtree. Can be any object so long as it exposes x, y, right and bottom properties.< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-184" > line 184< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "populate" > < span class = "type-signature" > < / span > populate< span class = "signature" > (group)< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Populates this quadtree with the children of the given Group. In order to be added the child must exist and have a body property.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > group< / code > < / td >
< td class = "type" >
< span class = "param-type" > < a href = "Phaser.Group.html" > Phaser.Group< / a > < / span >
< / td >
< td class = "description last" > < p > The Group to add to the quadtree.< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-134" > line 134< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "populateHandler" > < span class = "type-signature" > < / span > populateHandler< span class = "signature" > (sprite)< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Handler for the populate method.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > sprite< / code > < / td >
< td class = "type" >
< span class = "param-type" > < a href = "Phaser.Sprite.html" > Phaser.Sprite< / a > < / span >
|
< span class = "param-type" > object< / span >
< / td >
< td class = "description last" > < p > The Sprite to check.< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-146" > line 146< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "reset" > < span class = "type-signature" > < / span > reset< span class = "signature" > (x, y, width, height, < span class = "optional" > maxObjects< / span > , < span class = "optional" > maxLevels< / span > , < span class = "optional" > level< / span > )< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Resets the QuadTree.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th > Argument< / th >
< th > Default< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > x< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The top left coordinate of the quadtree.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > y< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The top left coordinate of the quadtree.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > width< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The width of the quadtree in pixels.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > height< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< / td >
< td class = "default" >
< / td >
< td class = "description last" > < p > The height of the quadtree in pixels.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > maxObjects< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
10
< / td >
< td class = "description last" > < p > The maximum number of objects per node.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > maxLevels< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
4
< / td >
< td class = "description last" > < p > The maximum number of levels to iterate to.< / p > < / td >
< / tr >
< tr >
< td class = "name" > < code > level< / code > < / td >
< td class = "type" >
< span class = "param-type" > number< / span >
< / td >
< td class = "attributes" >
< optional>< br >
< / td >
< td class = "default" >
0
< / td >
< td class = "description last" > < p > Which level is this?< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-100" > line 100< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "retrieve" > < span class = "type-signature" > < / span > retrieve< span class = "signature" > (sprite)< / span > < span class = "type-signature" > → {array}< / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Return all objects that could collide with the given Sprite.< / p >
< / div >
< h5 > Parameters:< / h5 >
< table class = "params table table-striped" >
< thead >
< tr >
< th > Name< / th >
< th > Type< / th >
< th class = "last" > Description< / th >
< / tr >
< / thead >
< tbody >
< tr >
< td class = "name" > < code > sprite< / code > < / td >
< td class = "type" >
< span class = "param-type" > < a href = "Phaser.Sprite.html" > Phaser.Sprite< / a > < / span >
< / td >
< td class = "description last" > < p > The sprite to check against.< / p > < / td >
< / tr >
< / tbody >
< / table >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-280" > line 280< / a >
< / li > < / ul > < / dd >
< / dl >
< h5 > Returns:< / h5 >
< div class = "param-desc" >
< ul >
< li > Array with all detected objects.< / li >
< / ul >
< / div >
< dl >
< dt >
Type
< / dt >
< dd >
< span class = "param-type" > array< / span >
< / dd >
< / dl >
< / dd >
< dt >
< h4 class = "name" id = "split" > < span class = "type-signature" > < / span > split< span class = "signature" > ()< / span > < span class = "type-signature" > < / span > < / h4 >
< / dt >
< dd >
< div class = "description" >
< p > Split the node into 4 subnodes< / p >
< / div >
< dl class = "details" >
< dt class = "tag-source" > Source:< / dt >
< dd class = "tag-source" > < ul class = "dummy" > < li >
< a href = "QuadTree.js.html" > math/QuadTree.js< / a > , < a href = "QuadTree.js.html#sunlight-1-line-161" > line 161< / a >
< / li > < / ul > < / dd >
< / dl >
< / dd >
< / dl >
< / 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 >
2014-03-24 12:41:45 +00:00
on Mon Mar 24 2014 12:38:52 GMT-0000 (GMT) using the < a href = "https://github.com/terryweiss/docstrap" > DocStrap template< / a > .
2014-03-14 06:36:05 +00:00
< / span >
< / footer >
< / div >
< div class = "span3" >
< div id = "toc" > < / div >
< / 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 >
