Group
Related Docs:
object Group
| package phaser
A reference to the currently running game.
The parent Group (or other DisplayObject) that this group will be added to. If undefined/unspecified the Group will be added to the Game World; if null the Group will not be added to any parent.
A name for this group. Not used internally but useful for debugging.
If true this group will be added directly to the Game.Stage instead of Game.World.
If true all Sprites created with #create or #createMulitple will have a physics body created on them. Change the body type with #physicsBodyType.
The physics body type to use when physics bodies are automatically added. See #physicsBodyType for values.
Adds an existing object as the top child in this group.
Adds an existing object as the top child in this group. The child is automatically added to the top of the group, and is displayed above every previous child. Or if the optional index is specified, the child is added at the location specified by the index value, this allows you to control child ordering.
If the child was already in this Group, it is simply returned, and nothing else happens to it.
If Group.enableBody is set, then a physics body will be created on the object, so long as one does not already exist.
If Group.inputEnableChildren is set, then an Input Handler will be created on the object, so long as one does not already exist.
Use addAt to control where a child is added. Use create to create and add a new child.
The display object to add as a child.
If true the child will not dispatch the onAddedToGroup event.
The index within the group to insert the child to. Where 0 is the bottom of the Group.
The child that was added to the group.
Adds the amount to the given property on all children in this group.
Adds the amount to the given property on all children in this group.
Group.addAll('x', 10) will add 10 to the child.x value for each child.
The property to increment, for example 'body.velocity.x' or 'angle'.
The amount to increment the property by. If child.x = 10 then addAll('x', 40)
would make child.x = 50.
If true the property will only be changed if the child is alive.
If true the property will only be changed if the child is visible.
Adds an existing object to this group.
Adds an existing object to this group. The child is added to the group at the location specified by the index value, this allows you to control child ordering.
If Group.enableBody is set, then a physics body will be created on the object, so long as one does not already exist.
If Group.inputEnableChildren is set, then an Input Handler will be created on the object, so long as one does not already exist.
The display object to add as a child.
The index within the group to insert the child to.
If true the child will not dispatch the onAddedToGroup event.
The child that was added to the group.
Adds an array of existing Display Objects to this Group.
Adds an array of existing Display Objects to this Group. The Display Objects are automatically added to the top of this Group, and will render on-top of everything already in this Group.
As well as an array you can also pass another Group as the first argument. In this case all of the children from that Group will be removed from it and added into this Group.
If Group.enableBody is set, then a physics body will be created on the objects, so long as one does not already exist.
If Group.inputEnableChildren is set, then an Input Handler will be created on the objects, so long as one does not already exist.
An array of display objects or a Phaser.Group. If a Group is given then all children will be moved from it.
If true the children will not dispatch the onAddedToGroup event.
The array of children or Group of children that were added to this Group.
Adds a child of this Group into the hash array.
Adds a child of this Group into the hash array. This call will return false if the child is not a child of this Group, or is already in the hash.
The display object to add to this Groups hash. Must be a member of this Group already and not present in the hash.
True if the child was successfully added to the hash, otherwise false.
If true this group will be added directly to the Game.Stage instead of Game.World.
This method iterates through all children in the Group (regardless if they are visible or exist) and then changes their position so they are arranged in a Grid formation.
This method iterates through all children in the Group (regardless if they are visible or exist) and then changes their position so they are arranged in a Grid formation. Children must have the alignTo method in order to be positioned by this call. All default Phaser Game Objects have this.
The grid dimensions are determined by the first four arguments. The width and height arguments relate to the width and height of the grid respectively.
For example if the Group had 100 children in it:
Group.align(10, 10, 32, 32)
This will align all of the children into a grid formation of 10x10, using 32 pixels per
grid cell. If you want a wider grid, you could do:
Group.align(25, 4, 32, 32)
This will align the children into a grid of 25x4, again using 32 pixels per grid cell.
You can choose to set either the width or height value to -1. Doing so tells the method
to keep on aligning children until there are no children left. For example if this Group had
48 children in it, the following:
Group.align(-1, 8, 32, 32)
... will align the children so that there are 8 children vertically (the second argument),
and each row will contain 6 sprites, except the last one, which will contain 5 (totaling 48)
You can also do:
Group.align(10, -1, 32, 32)
In this case it will create a grid 10 wide, and as tall as it needs to be in order to fit
all of the children in.
The position property allows you to control where in each grid cell the child is positioned. This is a constant and can be one of Phaser.TOP_LEFT (default), Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_CENTER, Phaser.CENTER, Phaser.RIGHT_CENTER, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER or Phaser.BOTTOM_RIGHT. The final argument; offset lets you start the alignment from a specific child index.
The width of the grid in items (not pixels). Set to -1 for a dynamic width. If -1 then you must set an explicit height value.
The height of the grid in items (not pixels). Set to -1 for a dynamic height. If -1 then you must set an explicit width value.
The width of each grid cell, in pixels.
The height of each grid cell, in pixels.
The position constant. One of Phaser.TOP_LEFT (default), Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_CENTER, Phaser.CENTER, Phaser.RIGHT_CENTER, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER or Phaser.BOTTOM_RIGHT.
Optional index to start the alignment from. Defaults to zero, the first child in the Group, but can be set to any valid child index value.
True if the Group children were aligned, otherwise false.
Aligns this Group within another Game Object, or Rectangle, known as the 'container', to one of 9 possible positions.
Aligns this Group within another Game Object, or Rectangle, known as the
'container', to one of 9 possible positions.
The container must be a Game Object, or Phaser.Rectangle object. This can include properties
such as World.bounds or Camera.view, for aligning Groups within the world
and camera bounds. Or it can include other Sprites, Images, Text objects, BitmapText,
TileSprites or Buttons.
Please note that aligning a Group to another Game Object does not make it a child of the container. It simply modifies its position coordinates so it aligns with it. The position constants you can use are: Phaser.TOP_LEFT, Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_CENTER, Phaser.CENTER, Phaser.RIGHT_CENTER, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER and Phaser.BOTTOM_RIGHT.
Groups are placed in such a way that their bounds align with the
container, taking into consideration rotation and scale of its children.
This allows you to neatly align Groups, irrespective of their position value.
The optional offsetX and offsetY arguments allow you to apply extra spacing to the final
aligned position of the Group. For example:
group.alignIn(background, Phaser.BOTTOM_RIGHT, -20, -20)
Would align the group to the bottom-right, but moved 20 pixels in from the corner.
Think of the offsets as applying an adjustment to the containers bounds before the alignment takes place.
So providing a negative offset will 'shrink' the container bounds by that amount, and providing a positive
one expands it.
The Game Object or Rectangle with which to align this Group to. Can also include properties such as World.bounds or Camera.view.
The position constant. One of Phaser.TOP_LEFT (default), Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_CENTER, Phaser.CENTER, Phaser.RIGHT_CENTER, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER or Phaser.BOTTOM_RIGHT.
A horizontal adjustment of the Containers bounds, applied to the aligned position of the Game Object. Use a negative value to shrink the bounds, positive to increase it.
A vertical adjustment of the Containers bounds, applied to the aligned position of the Game Object. Use a negative value to shrink the bounds, positive to increase it.
This Group.
Aligns this Group to the side of another Game Object, or Rectangle, known as the 'parent', in one of 11 possible positions.
Aligns this Group to the side of another Game Object, or Rectangle, known as the 'parent', in one of 11 possible positions. The parent must be a Game Object, or Phaser.Rectangle object. This can include properties such as World.bounds or Camera.view, for aligning Groups within the world and camera bounds. Or it can include other Sprites, Images, Text objects, BitmapText, TileSprites or Buttons.
Please note that aligning a Group to another Game Object does not make it a child of the parent. It simply modifies its position coordinates so it aligns with it. The position constants you can use are: Phaser.TOP_LEFT (default), Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_TOP, Phaser.LEFT_CENTER, Phaser.LEFT_BOTTOM, Phaser.RIGHT_TOP, Phaser.RIGHT_CENTER, Phaser.RIGHT_BOTTOM, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER and Phaser.BOTTOM_RIGHT.
Groups are placed in such a way that their bounds align with the parent, taking into consideration rotation and scale of the children. This allows you to neatly align Groups, irrespective of their position value. The optional offsetX and offsetY arguments allow you to apply extra spacing to the final aligned position of the Group.
For example:
group.alignTo(background, Phaser.BOTTOM_RIGHT, -20, -20)
Would align the group to the bottom-right, but moved 20 pixels in from the corner.
Think of the offsets as applying an adjustment to the parents bounds before the alignment takes place.
So providing a negative offset will 'shrink' the parent bounds by that amount, and providing a positive
one expands it.
The Game Object or Rectangle with which to align this Group to. Can also include properties such as World.bounds or Camera.view.
The position constant. One of Phaser.TOP_LEFT, Phaser.TOP_CENTER, Phaser.TOP_RIGHT, Phaser.LEFT_TOP, Phaser.LEFT_CENTER, Phaser.LEFT_BOTTOM, Phaser.RIGHT_TOP, Phaser.RIGHT_CENTER, Phaser.RIGHT_BOTTOM, Phaser.BOTTOM_LEFT, Phaser.BOTTOM_CENTER or Phaser.BOTTOM_RIGHT.
A horizontal adjustment of the Containers bounds, applied to the aligned position of the Game Object. Use a negative value to shrink the bounds, positive to increase it.
A vertical adjustment of the Containers bounds, applied to the aligned position of the Game Object. Use a negative value to shrink the bounds, positive to increase it.
This Group.
The alive property is useful for Groups that are children of other Groups and need to be included/excluded inchecks like forEachAlive.
The bottom coordinate of this Group.
The bottom coordinate of this Group.
It is derived by calling getBounds, calculating the Groups dimensions based on its
visible children.
Brings the given child to the top of this group so it renders above all other children.
Brings the given child to the top of this group so it renders above all other children.
The child to bring to the top of this group.
The child that was moved.
Name of the function on the child to call.
Name of the function on the child to call. Deep property lookup is supported.
Name of the function on the child to call. Deep property lookup is supported.
A string containing the context under which the method will be executed. Set to null to default to the child.
Additional parameters that will be passed to the method.
Calls a function, specified by name, on all children in the group who exist (or do not exist).
Calls a function, specified by name, on all children in the group who exist (or do not exist). After the existsValue parameter you can add as many parameters as you like, which will all be passed to the child callback.
Name of the function on the children to call.
Only children with exists=existsValue will be called.
Additional parameters that will be passed to the callback.
If this object is fixedToCamera then this stores the x/y position offset relative to the top-left of the camera view.
If this object is fixedToCamera then this stores the x/y position offset relative to the top-left of the camera view.
If the parent of this Group is also fixedToCamera then the offset here is in addition to that and should typically be disabled.
The center x coordinate of this Group.
The center x coordinate of this Group. It is derived by calling getBounds, calculating the Groups dimensions based on its visible children.
The center y coordinate of this Group.
The center y coordinate of this Group. It is derived by calling getBounds, calculating the Groups dimensions based on its visible children.
Quickly check that the same property across all children of this group is equal to the given value.
Quickly check that the same property across all children of this group is equal to the given value. This call doesn't descend down children, so if you have a Group inside of this group, the property will be checked on the group but not its children.
The property, as a string, to be set. For example: 'body.velocity.x'
The value that will be checked.
If set then only children with alive=true will be checked. This includes any Groups that are children.
If set then only children with visible=true will be checked. This includes any Groups that are children.
If force is true then the property will be checked on the child regardless if it already exists or not. If true and the property doesn't exist, false will be returned.
Checks a property for the given value on the child.
Checks a property for the given value on the child.
The child to check the property value on.
An array of strings that make up the property that will be set.
The value that will be checked.
If force is true then the property will be checked on the child regardless if it already exists or not. If true and the property doesn't exist, false will be returned.
True if the property was was equal to value, false if not.
The type of objects that will be created when using create or createMultiple.
The type of objects that will be created when using create or createMultiple.
Any object may be used but it should extend either Sprite or Image and accept
the same constructor arguments:
when a new object is created it is passed the following parameters to its
constructor: (game, x, y, key, frame).
Get the number of dead children in this group.
Get the number of dead children in this group.
The number of children flagged as dead.
Get the number of living children in this group.
Get the number of living children in this group.
The number of children flagged as alive.
Creates a new Phaser.Sprite object and adds it to the top of this group.
Creates a new Phaser.Sprite object and adds it to the top of this group. Use classType to change the type of object created. The child is automatically added to the top of the group, and is displayed above every previous child. Or if the optional index is specified, the child is added at the location specified by the index value, this allows you to control child ordering. If Group.enableBody is set, then a physics body will be created on the object, so long as one does not already exist. If Group.inputEnableChildren is set, then an Input Handler will be created on the object, so long as one does not already exist.
The x coordinate to display the newly created Sprite at. The value is in relation to the group.x point.
The y coordinate to display the newly created Sprite at. The value is in relation to the group.y point.
This is the image or texture used by the Sprite during rendering. It can be a string which is a reference to the Cache Image entry, or an instance of a RenderTexture, BitmapData, Video or PIXI.Texture.
If this Sprite is using part of a sprite sheet or texture atlas you can specify the exact frame to use by giving a string or numeric index.
The default exists state of the Sprite.
The index within the group to insert the child to. Where 0 is the bottom of the Group.
The child that was created: will be a Phaser.Sprite unless #classType has been changed.
Creates multiple Phaser.Sprite objects and adds them to the top of this Group.
Creates multiple Phaser.Sprite objects and adds them to the top of this Group. This method is useful if you need to quickly generate a pool of sprites, such as bullets. Use classType to change the type of object created. You can provide an array as the key and / or frame arguments. When you do this it will create quantity Sprites for every key (and frame) in the arrays.
For example:
createMultiple(25, ['ball', 'carrot'])
In the above code there are 2 keys (ball and carrot) which means that 50 sprites will be
created in total, 25 of each. You can also have the frame as an array:
createMultiple(5, 'bricks', [0, 1, 2, 3])
In the above there is one key (bricks), which is a sprite sheet. The frames array tells this method to use frames 0, 1, 2 and 3. So in total it will create 20 sprites, because the quantity was set to 5, so that is 5 brick sprites of frame 0, 5 brick sprites with frame 1, and so on.
If you set both the key and frame arguments to be arrays then understand it will create
a total quantity of sprites equal to the size of both arrays times each other. I.e.:
createMultiple(20, ['diamonds', 'balls'], [0, 1, 2])
The above will create 20 'diamonds' of frame 0, 20 with frame 1 and 20 with frame 2. It will then create 20 'balls' of frame 0, 20 with frame 1 and 20 with frame 2. In total it will have created 120 sprites.
By default the Sprites will have their exists property set to false, and they will be positioned at 0x0, relative to the Group.x / y values. If Group.enableBody is set, then a physics body will be created on the objects, so long as one does not already exist.
If Group.inputEnableChildren is set, then an Input Handler will be created on the objects, so long as one does not already exist.
The number of Sprites to create.
The Cache key of the image that the Sprites will use. Or an Array of keys. See the description for details on how the quantity applies when arrays are used.
If the Sprite image contains multiple frames you can specify which one to use here. Or an Array of frames. See the description for details on how the quantity applies when arrays are used.
The default exists state of the Sprite.
An array containing all of the Sprites that were created.
The current display object that the group cursor is pointing to, if any.
The current display object that the group cursor is pointing to, if any. (Can be set manually.) The cursor is a way to iterate through the children in a Group using next and previous.
The current index of the Group cursor.
The current index of the Group cursor. Advance it with Group.next.
Sort the children in the group according to custom sort function.
Sort the children in the group according to custom sort function. The sortHandler is provided the two parameters: the two children involved in the comparison (a and b). It should return -1 if a > b, 1 if a < b or 0 if a === b.
The custom sort function.
The context in which the sortHandler is called.
Destroys this group.
Destroys this group. Removes all children, then removes this group from its parent and nulls references.
If true destroy will be invoked on each removed child.
A 'soft destroy' (set to true) doesn't remove this group from its parent or null the game reference. Set to false and it does.
Divides the given property by the amount on all children in this group.
Divides the given property by the amount on all children in this group.
Group.divideAll('x', 2) will half the child.x value for each child.
The property to divide, for example 'body.velocity.x' or 'angle'.
The amount to divide the property by. If child.x = 100 then
divideAll('x', 2) would make child.x = 50.
If true the property will only be changed if the child is alive.
If true the property will only be changed if the child is visible.
If true all Sprites created with #create or #createMulitple will have a physics body created on them.
If true all Sprites created with #create or #createMulitple will have a physics body created on them. Change the body type with #physicsBodyType.
If true when a physics body is created (via enableBody) it will create a physics debug object as well.
If true when a physics body is created (via enableBody) it will create a physics debug object as well. This only works for P2 bodies.
If exists is true the group is updated, otherwise it is skipped.
Find children matching a certain predicate.
Find children matching a certain predicate. For example:
var healthyList = Group.filter(function(child, index, children) { return child.health > 10 ? true : false; }, true); healthyList.callAll('attack');
The function that each child will be evaluated against. Each child of the group will be passed to it as its first parameter, the index as the second, and the entire child array as the third
If true, only existing can be selected; otherwise all children can be selected and will be passed to the predicate.
an array list containing all the children that the predicate returned true for
A Group that is fixed to the camera uses its x/y coordinates as offsets from the top left of the camera.
A Group that is fixed to the camera uses its x/y coordinates as offsets from the top left of the camera. These are stored in Group.cameraOffset.
Note that the cameraOffset values are in addition to any parent in the display list. So if this Group was in a Group that has x: 200, then this will be added to the cameraOffset.x
Call a function on each child in this group.
Call a function on each child in this group. Additional arguments for the callback can be specified after the checkExists parameter. For example,
Group.forEach(awardBonusGold, this, true, 100, 500)
would invoke awardBonusGold function with the parameters (child, 100, 500).
Note: This check will skip any children which are Groups themselves.
The function that will be called for each applicable child. The child will be passed as the first argument.
The context in which the function should be called (usually 'this').
Optional: If set only children matching for which exists is true will be passed to the callback, otherwise all children will be passed.
Additional arguments to pass to the callback function, after the child item.
Call a function on each alive child in this group.
Call a function on each alive child in this group. See forEach for details.
The function that will be called for each applicable child. The child will be passed as the first argument.
The context in which the function should be called (usually 'this').
Additional arguments to pass to the callback function, after the child item.
Call a function on each dead child in this group.
Call a function on each dead child in this group. See forEach for details.
The function that will be called for each applicable child. The child will be passed as the first argument.
The context in which the function should be called (usually 'this').
Additional arguments to pass to the callback function, after the child item.
Call a function on each existing child in this group.
Call a function on each existing child in this group. See forEach for details.
The function that will be called for each applicable child. The child will be passed as the first argument.
The context in which the function should be called (usually 'this').
Additional arguments to pass to the callback function, after the child item.
A reference to the currently running game.
Returns all children in this Group.
Returns all children in this Group. You can optionally specify a matching criteria using the property and value arguments. For example: getAll('exists', true) would return only children that have their exists property set. Optionally you can specify a start and end index. For example if this Group had 100 children, and you set startIndex to 0 and endIndex to 50, it would return a random child from only the first 50 children in the Group.
An optional property to test against the value argument.
If property is set then Child.property must strictly equal this value to be included in the results.
The first child index to start the search from.
The last child index to search up until.
A random existing child of this Group.
Returns the child found at the given index within this group.
Returns the child found at the given index within this group.
The index to return the child from.
The child that was found at the given index, or -1 for an invalid index.
Returns the child at the bottom of this group.
Returns the child at the bottom of this group. The bottom child the child being displayed (rendered) below every other child.
The child at the bottom of the Group.
Searches the Group for the first instance of a child with the name
property matching the given argument.
Searches the Group for the first instance of a child with the name
property matching the given argument. Should more than one child have
the same name only the first instance is returned.
The name to search for.
The first child with a matching name, or null if none were found.
The hash array is an array belonging to this Group into which you can add any of its children
via Group.addToHash and Group.removeFromHash.
The hash array is an array belonging to this Group into which you can add any of its children
via Group.addToHash and Group.removeFromHash.
Only children of this Group can be added to and removed from the hash.
This hash is used automatically by Phaser Arcade Physics in order to perform non z-index based destructive sorting.
However if you don't use Arcade Physics, or this isn't a physics enabled Group, then you can use the hash to perform your own sorting and filtering of Group
A group with ignoreDestroy set to true ignores all calls to its destroy method.
A Group with inputEnableChildren set to true will automatically call inputEnabled = true on any children added to, or created by, this Group.
A Group with inputEnableChildren set to true will automatically call inputEnabled = true on any children added to, or created by, this Group.
If there are children already in the Group at the time you set this property, they are not changed.
The left coordinate of this Group.
The left coordinate of this Group.
It is derived by calling getBounds, calculating the Groups dimensions based on its
visible children.
Total number of children in this group, regardless of exists/alive status.
A name for this group.
A name for this group. Not used internally but useful for debugging.
This Signal is dispatched whenever a child of this Group emits an onInputDown signal as a result of having been interacted with by a Pointer.
This Signal is dispatched whenever a child of this Group emits an onInputDown signal as a result of having been interacted with by a Pointer. You can bind functions to this Signal instead of to every child Sprite.
This Signal is sent 2 arguments: A reference to the Sprite that triggered the signal, and a reference to the Pointer that caused it.
This Signal is dispatched whenever a child of this Group emits an onInputOut signal as a result of having been interacted with by a Pointer.
This Signal is dispatched whenever a child of this Group emits an onInputOut signal as a result of having been interacted with by a Pointer. You can bind functions to this Signal instead of to every child Sprite.
This Signal is sent 2 arguments: A reference to the Sprite that triggered the signal, and a reference to the Pointer that caused it.
This Signal is dispatched whenever a child of this Group emits an onInputOver signal as a result of having been interacted with by a Pointer.
This Signal is dispatched whenever a child of this Group emits an onInputOver signal as a result of having been interacted with by a Pointer. You can bind functions to this Signal instead of to every child Sprite.
This Signal is sent 2 arguments: A reference to the Sprite that triggered the signal, and a reference to the Pointer that caused it.
This Signal is dispatched whenever a child of this Group emits an onInputUp signal as a result of having been interacted with by a Pointer.
This Signal is dispatched whenever a child of this Group emits an onInputUp signal as a result of having been interacted with by a Pointer. You can bind functions to this Signal instead of to every child Sprite.
This Signal is sent 3 arguments: A reference to the Sprite that triggered the signal, a reference to the Pointer that caused it, and a boolean value isOver that tells you if the Pointer is still over the Sprite or not.
This signal is dispatched when the group is destroyed.
The parent Group (or other DisplayObject) that this group will be added to.
The parent Group (or other DisplayObject) that this group will be added to. If undefined/unspecified the Group will be added to the Game World; if null the Group will not be added to any parent.
A Group is that has pendingDestroy set to true is flagged to have its destroy method
called on the next logic update.
A Group is that has pendingDestroy set to true is flagged to have its destroy method
called on the next logic update.
You can set it directly to flag the Group to be destroyed on its next update.
This is extremely useful if you wish to destroy a Group from within one of its own callbacks or a callback of one of its children.
The physics body type to use when physics bodies are automatically added.
The physics body type to use when physics bodies are automatically added. See #physicsBodyType for values.
If this Group contains Arcade Physics Sprites you can set a custom sort direction via this property.
If this Group contains Arcade Physics Sprites you can set a custom sort direction via this property.
It should be set to one of the Phaser.Physics.Arcade sort direction constants:
Phaser.Physics.Arcade.SORT_NONE Phaser.Physics.Arcade.LEFT_RIGHT Phaser.Physics.Arcade.RIGHT_LEFT Phaser.Physics.Arcade.TOP_BOTTOM Phaser.Physics.Arcade.BOTTOM_TOP
If set to null the Group will use whatever Phaser.Physics.Arcade.sortDirection is set to. This is the default behavior.
The const physics body type of this object.
The right coordinate of this Group.
The right coordinate of this Group.
It is derived by calling getBounds, calculating the Groups dimensions based on its visible children.
The angle of rotation of the group container, in radians.
The angle of rotation of the group container, in radians.
This will adjust the group container itself by modifying its rotation. This will have no impact on the rotation value of its children, but it will update their worldTransform and on-screen position.
The top coordinate of this Group.
The top coordinate of this Group.
It is derived by calling getBounds, calculating the Groups dimensions based on its visible children.
Total number of existing children in the group.
A Group is a container for display objects including Sprites and Images.
Groups form the logical tree structure of the display/scene graph where local transformations are applied to children. For instance, all children are also moved/rotated/scaled when the group is moved/rotated/scaled.
In addition, Groups provides support for fast pooling and object recycling.
Groups are also display objects and can be nested as children within other Groups.
http://phaser.io/docs/2.6.2/Phaser.Group.html