phaser - v4.0.0-rc.4
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    The Display List plugin.

    Display Lists belong to a Scene and maintain the list of Game Objects to render every frame.

    Some of these Game Objects may also be part of the Scene's [Update List]Phaser.GameObjects.UpdateList, for updating.

    Hierarchy (View Summary)

    Index

    Constructors

    Properties

    _sortKey: string

    The property key to sort by.

    addCallback: Function

    A callback that is invoked every time a child is added to this list.

    events: EventEmitter

    The Scene's Event Emitter.

    first: GameObject

    The first item in the List or null for an empty List.

    The last item in the List, or null for an empty List.

    length: number

    The number of items inside the List.

    list: GameObject[]

    The objects that belong to this collection.

    The next item in the List, or null if the entire List has been traversed.

    This property can be read successively after reading #first or manually setting the #position to iterate the List.

    parent: any

    The parent of this list.

    position: number

    The index of the current element.

    This is used internally when iterating through the list with the #first, #last, #get, and #previous properties.

    previous: GameObject

    The previous item in the List, or null if the entire List has been traversed.

    This property can be read successively after reading #last or manually setting the #position to iterate the List backwards.

    removeCallback: Function

    A callback that is invoked every time a child is removed from this list.

    scene: Scene

    The Scene that this Display List belongs to.

    sortChildrenFlag: boolean

    The flag the determines whether Game Objects should be sorted when depthSort() is called.

    systems: Systems

    The Scene's Systems.

    Methods

    • Adds the given item to the end of the list. Each item must be unique.

      Parameters

      • child: any

        The item, or array of items, to add to the list.

      • OptionalskipCallback: boolean

        Skip calling the List.addCallback if this child is added successfully. Default false.

      Returns any

    • Adds an item to list, starting at a specified index. Each item must be unique within the list.

      Parameters

      • child: GameObject | GameObject[]

        The item, or array of items, to add to the list.

      • Optionalindex: number

        The index in the list at which the element(s) will be inserted. Default 0.

      • OptionalskipCallback: boolean

        Skip calling the List.addCallback if this child is added successfully. Default false.

      Returns GameObject | GameObject[]

    • Returns the total number of items in the List which have a property matching the given value.

      Parameters

      • property: string

        The property to test on each item.

      • value: GameObject

        The value to test the property against.

      Returns number

    • Immediately sorts the display list if the flag is set.

      Returns void

    • Passes all children to the given callback.

      Parameters

      • callback: EachListCallback<GameObject>

        The function to call.

      • Optionalcontext: any

        Value to use as this when executing callback.

      • ...args: any[]

        Additional arguments that will be passed to the callback, after the child.

      Returns void

    • Returns all children in this List.

      You can optionally specify a matching criteria using the property and value arguments.

      For example: getAll('parent') would return only children that have a property called parent.

      You can also specify a value to compare the property to:

      getAll('visible', true) would return only children that have their visible property set to true.

      Optionally you can specify a start and end index. For example if this List had 100 children, and you set startIndex to 0 and endIndex to 50, it would return matches from only the first 50 children in the List.

      Parameters

      • Optionalproperty: string

        An optional property to test against the value argument.

      • Optionalvalue: any

        If property is set then Child.property must strictly equal this value to be included in the results.

      • OptionalstartIndex: number

        The first child index to start the search from.

      • OptionalendIndex: number

        The last child index to search up until.

      Returns GameObject[]

    • Searches for the first instance of a child with its name property matching the given argument. Should more than one child have the same name only the first is returned.

      Parameters

      • name: string

        The name to search for.

      Returns GameObject

    • Returns an array which contains all objects currently on the Display List. This is a reference to the main list array, not a copy of it, so be careful not to modify it.

      Returns GameObject[]

    • Returns the first element in a given part of the List which matches a specific criterion.

      Parameters

      • property: string

        The name of the property to test or a falsey value to have no criterion.

      • value: any

        The value to test the property against, or undefined to allow any value and only check for existence.

      • OptionalstartIndex: number

        The position in the List to start the search at. Default 0.

      • OptionalendIndex: number

        The position in the List to optionally stop the search at. It won't be checked.

      Returns GameObject

    • Returns a random child from the group.

      Parameters

      • OptionalstartIndex: number

        Offset from the front of the group (lowest child). Default 0.

      • Optionallength: number

        Restriction on the number of values you want to randomly select from. Default (to top).

      Returns GameObject

    • Force a sort of the display list on the next call to depthSort.

      Returns void

    • Removes one or many items from the List.

      Parameters

      • child: any

        The item, or array of items, to remove.

      • OptionalskipCallback: boolean

        Skip calling the List.removeCallback. Default false.

      Returns any

    • Removes all the items.

      Parameters

      • OptionalskipCallback: boolean

        Skip calling the List.removeCallback. Default false.

      Returns this

    • Removes the item at the given position in the List.

      Parameters

      • index: number

        The position to remove the item from.

      • OptionalskipCallback: boolean

        Skip calling the List.removeCallback. Default false.

      Returns GameObject

    • Removes the items within the given range in the List.

      Parameters

      • OptionalstartIndex: number

        The index to start removing from. Default 0.

      • OptionalendIndex: number

        The position to stop removing at. The item at this position won't be removed.

      • OptionalskipCallback: boolean

        Skip calling the List.removeCallback. Default false.

      Returns GameObject[]

    • Sets the property key to the given value on all members of this List.

      Parameters

      • property: string

        The name of the property to set.

      • value: GameObject

        The value to set the property to.

      • OptionalstartIndex: number

        The first child index to start the search from.

      • OptionalendIndex: number

        The last child index to search up until.

      Returns void

    • Sort the contents of this List so the items are in order based on the given property. For example, sort('alpha') would sort the List contents based on the value of their alpha property.

      Parameters

      • property: string

        The property to lexically sort by.

      • Optionalhandler: Function

        Provide your own custom handler function. Will receive 2 children which it should compare and return a boolean.

      Returns GameObject[]