Phaser.Utils.Array - Phaser 3 API Documentation (beta)

<static> Add(array, item, [limit], [callback], [context])

Description:

Adds the given item, or array of items, to the array.

Each item must be unique within the array.

The array is modified in-place and returned.

You can optionally specify a limit to the maximum size of the array. If the quantity of items being added will take the array length over this limit, it will stop adding once the limit is reached.

You can optionally specify a callback to be invoked for each item successfully added to the array.

Parameters:

name	type	arguments	description
array	array		The array to be added to.
item	any \| Array.<any>		The item, or array of items, to add to the array. Each item must be unique within the array.
limit	number	<optional>	Optional limit which caps the size of the array.
callback	function	<optional>	A callback to be invoked for each item successfully added to the array.
context	object	<optional>	The context in which the callback is invoked.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/Add.js (Line 7)

<static> AddAt(array, item, [index], [limit], [callback], [context])

Description:

Adds the given item, or array of items, to the array starting at the index specified.

Each item must be unique within the array.

Existing elements in the array are shifted up.

The array is modified in-place and returned.

You can optionally specify a limit to the maximum size of the array. If the quantity of items being added will take the array length over this limit, it will stop adding once the limit is reached.

You can optionally specify a callback to be invoked for each item successfully added to the array.

Parameters:

name	type	arguments	description
array	array		The array to be added to.
item	any \| Array.<any>		The item, or array of items, to add to the array.
index	number	<optional>	The index in the array where the item will be inserted.
limit	number	<optional>	Optional limit which caps the size of the array.
callback	function	<optional>	A callback to be invoked for each item successfully added to the array.
context	object	<optional>	The context in which the callback is invoked.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/AddAt.js (Line 7)

<static> BringToTop(array, item)

Description:

Moves the given element to the top of the array. The array is modified in-place.

Parameters:

name	type	description
array	array	The array.
item	*	The element to move.

Returns:

Description:

The element that was moved.

Type:

*

Since: 3.4.0

Source: src/utils/array/BringToTop.js (Line 7)

<static> CountAllMatching(array, property, value, [startIndex], [endIndex])

Description:

Returns the total number of elements in the array which have a property matching the given value.

Parameters:

name	type	arguments	description
array	array		The array to search.
property	string		The property to test on each array element.
value	*		The value to test the property against. Must pass a strict (`===`) comparison check.
startIndex	number	<optional>	An optional start index to search from.
endIndex	number	<optional>	An optional end index to search to.

Returns:

Description:

The total number of elements with properties matching the given value.

Type:

number

Since: 3.4.0

Source: src/utils/array/CountAllMatching.js (Line 9)

<static> Each(array, callback, context, [args])

Description:

Passes each element in the array to the given callback.

Parameters:

name	type	arguments	description
array	array		The array to search.
callback	function		A callback to be invoked for each item in the array.
context	object		The context in which the callback is invoked.
args	*	<optional>	Additional arguments that will be passed to the callback, after the current array item.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/Each.js (Line 7)

<static> EachInRange(array, callback, context, startIndex, endIndex, [args])

Description:

Passes each element in the array, between the start and end indexes, to the given callback.

Parameters:

name	type	arguments	description
array	array		The array to search.
callback	function		A callback to be invoked for each item in the array.
context	object		The context in which the callback is invoked.
startIndex	number		The start index to search from.
endIndex	number		The end index to search to.
args	*	<optional>	Additional arguments that will be passed to the callback, after the child.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/EachInRange.js (Line 9)

<static> FindClosestInSorted(value, array, [key])

Description:

Searches a pre-sorted array for the closet value to the given number.

If the key argument is given it will assume the array contains objects that all have the required key property name, and will check for the closest value of those to the given number.

Parameters:

name	type	arguments	description
value	number		The value to search for in the array.
array	array		The array to search, which must be sorted.
key	string	<optional>	An optional property key. If specified the array elements property will be checked against value.

Returns:

Description:

The nearest value found in the array, or if a key was given, the nearest object with the matching property value.

Type:

number
any

Since: 3.0.0

Source: src/utils/array/FindClosestInSorted.js (Line 7)

<static> GetAll(array, [property], [value], [startIndex], [endIndex])

Description:

Returns all elements in the array.

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

For example: getAll('visible', true) would return only elements that have their visible property set.

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

Parameters:

name	type	arguments	description
array	array		The array to search.
property	string	<optional>	The property to test on each array element.
value	*	<optional>	The value to test the property against. Must pass a strict (`===`) comparison check.
startIndex	number	<optional>	An optional start index to search from.
endIndex	number	<optional>	An optional end index to search to.

Returns:

Description:

All matching elements from the array.

Type:

array

Since: 3.4.0

Source: src/utils/array/GetAll.js (Line 9)

<static> GetFirst(array, [property], [value], [startIndex], [endIndex])

Description:

Returns the first element in the array.

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

For example: getAll('visible', true) would return the first element that had its visible property set.

Optionally you can specify a start and end index. For example if the array had 100 elements, and you set startIndex to 0 and endIndex to 50, it would search only the first 50 elements.

Parameters:

name	type	arguments	Default	description
array	array			The array to search.
property	string	<optional>		The property to test on each array element.
value	*	<optional>		The value to test the property against. Must pass a strict (`===`) comparison check.
startIndex	number	<optional>	0	An optional start index to search from.
endIndex	number	<optional>	array.length	An optional end index to search up to (but not included)

Returns:

Description:

The first matching element from the array, or null if no element could be found in the range given.

Type:

object

Since: 3.4.0

Source: src/utils/array/GetFirst.js (Line 9)

<static> GetRandom(array, [startIndex], [length])

Description:

Returns a Random element from the array.

Parameters:

name	type	arguments	Default	description
array	array			The array to select the random entry from.
startIndex	number	<optional>	0	An optional start index.
length	number	<optional>	array.length	An optional length, the total number of elements (from the startIndex) to choose from.

Returns:

Description:

A random element from the array, or null if no element could be found in the range given.

Type:

*

Since: 3.0.0

Source: src/utils/array/GetRandom.js (Line 7)

<static> MoveDown(array, item)

Description:

Moves the given array element down one place in the array. The array is modified in-place.

Parameters:

name	type	description
array	array	The input array.
item	*	The element to move down the array.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/MoveDown.js (Line 7)

<static> MoveTo(array, item, index)

Description:

Moves an element in an array to a new position within the same array. The array is modified in-place.

Parameters:

name	type	description
array	array	The array.
item	*	The element to move.
index	number	The new index that the element will be moved to.

Returns:

Description:

The element that was moved.

Type:

*

Since: 3.4.0

Source: src/utils/array/MoveTo.js (Line 7)

<static> MoveUp(array, item)

Description:

Moves the given array element up one place in the array. The array is modified in-place.

Parameters:

name	type	description
array	array	The input array.
item	*	The element to move up the array.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/MoveUp.js (Line 7)

<static> NumberArray(start, end, [prefix], [suffix])

Description:

Create an array representing the range of numbers (usually integers), between, and inclusive of, the given start and end arguments. For example:

var array = Phaser.Utils.Array.NumberArray(2, 4); // array = [2, 3, 4] var array = Phaser.Utils.Array.NumberArray(0, 9); // array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] var array = Phaser.Utils.Array.NumberArray(8, 2); // array = [8, 7, 6, 5, 4, 3, 2]

This is equivalent to Phaser.Utils.Array.NumberArrayStep(start, end, 1).

You can optionally provide a prefix and / or suffix string. If given the array will contain strings, not integers. For example:

var array = Phaser.Utils.Array.NumberArray(1, 4, 'Level '); // array = ["Level 1", "Level 2", "Level 3", "Level 4"] var array = Phaser.Utils.Array.NumberArray(5, 7, 'HD-', '.png'); // array = ["HD-5.png", "HD-6.png", "HD-7.png"]

Parameters:

name	type	arguments	description
start	number		The minimum value the array starts with.
end	number		The maximum value the array contains.
prefix	string	<optional>	Optional prefix to place before the number. If provided the array will contain strings, not integers.
suffix	string	<optional>	Optional suffix to place after the number. If provided the array will contain strings, not integers.

Returns:

Description:

The array of number values, or strings if a prefix or suffix was provided.

Type:

Array.<number>
Array.<string>

Since: 3.0.0

Source: src/utils/array/NumberArray.js (Line 7)

<static> NumberArrayStep([start], [end], [step])

Description:

Create an array of numbers (positive and/or negative) progressing from start up to but not including end by advancing by step.

If start is less than end a zero-length range is created unless a negative step is specified.

Certain values for start and end (eg. NaN/undefined/null) are currently coerced to 0; for forward compatibility make sure to pass in actual numbers.

Parameters:

name	type	arguments	Default	description
start	number	<optional>	0	The start of the range.
end	number	<optional>	null	The end of the range.
step	number	<optional>	1	The value to increment or decrement by.

Returns:

Description:

The array of number values.

Type:

Array.<number>

Examples:

NumberArrayStep(4);
// => [0, 1, 2, 3]

NumberArrayStep(1, 5);
// => [1, 2, 3, 4]

NumberArrayStep(0, 20, 5);
// => [0, 5, 10, 15]

NumberArrayStep(0, -4, -1);
// => [0, -1, -2, -3]

NumberArrayStep(1, 4, 0);
// => [1, 1, 1]

NumberArrayStep(0);
// => []

Since: 3.0.0

Source: src/utils/array/NumberArrayStep.js (Line 9)

<static> QuickSelect(arr, k, [left], [right], [compare])

Description:

A Floyd-Rivest quick selection algorithm.

Rearranges the array items so that all items in the [left, k] range are smaller than all items in [k, right]; The k-th element will have the (k - left + 1)th smallest value in [left, right].

The array is modified in-place.

Based on code by Vladimir Agafonkin

Parameters:

name	type	arguments	description
arr	array		The array to sort.
k	number		The k-th element index.
left	number	<optional>	The index of the left part of the range.
right	number	<optional>	The index of the right part of the range.
compare	function	<optional>	An optional comparison function. Is passed two elements and should return 0, 1 or -1.

Since: 3.0.0

Source: src/utils/array/QuickSelect.js (Line 25)

<static> Range(a, b, [options])

Description:

Creates an array populated with a range of values, based on the given arguments and configuration object.

Range ([a,b,c], [1,2,3]) = a1, a2, a3, b1, b2, b3, c1, c2, c3

Range ([a,b], [1,2,3], qty = 3) = a1, a1, a1, a2, a2, a2, a3, a3, a3, b1, b1, b1, b2, b2, b2, b3, b3, b3

Range ([a,b,c], [1,2,3], repeat x1) = a1, a2, a3, b1, b2, b3, c1, c2, c3, a1, a2, a3, b1, b2, b3, c1, c2, c3

Range ([a,b], [1,2], repeat -1 = endless, max = 14) = Maybe if max is set then repeat goes to -1 automatically? a1, a2, b1, b2, a1, a2, b1, b2, a1, a2, b1, b2, a1, a2 (capped at 14 elements)

Range ([a], [1,2,3,4,5], random = true) = a4, a1, a5, a2, a3

Range ([a, b], [1,2,3], random = true) = b3, a2, a1, b1, a3, b2

Range ([a, b, c], [1,2,3], randomB = true) = a3, a1, a2, b2, b3, b1, c1, c3, c2

Range ([a], [1,2,3,4,5], yoyo = true) = a1, a2, a3, a4, a5, a5, a4, a3, a2, a1

Range ([a, b], [1,2,3], yoyo = true) = a1, a2, a3, b1, b2, b3, b3, b2, b1, a3, a2, a1

Parameters:

name	type	arguments	description
a	array		The first array of range elements.
b	array		The second array of range elements.
options	object	<optional>	A range configuration object. Can contain: repeat, random, randomB, yoyo, max, qty.

Returns:

Description:

An array of arranged elements.

Type:

array

Since: 3.0.0

Source: src/utils/array/Range.js (Line 28)

<static> Remove(array, item, [callback], [context])

Description:

Removes the given item, or array of items, from the array.

The array is modified in-place.

You can optionally specify a callback to be invoked for each item successfully removed from the array.

Parameters:

name	type	arguments	description
array	array		The array to be modified.
item	* \| Array.<*>		The item, or array of items, to be removed from the array.
callback	function	<optional>	A callback to be invoked for each item successfully removed from the array.
context	object	<optional>	The context in which the callback is invoked.

Returns:

Description:

The item, or array of items, that were successfully removed from the array.

Type:

*
Array.<*>

Since: 3.4.0

Source: src/utils/array/Remove.js (Line 9)

<static> RemoveAt(array, index, [callback], [context])

Description:

Removes the item from the given position in the array.

The array is modified in-place.

You can optionally specify a callback to be invoked for the item if it is successfully removed from the array.

Parameters:

name	type	arguments	description
array	array		The array to be modified.
index	number		The array index to remove the item from. The index must be in bounds or it will throw an error.
callback	function	<optional>	A callback to be invoked for the item removed from the array.
context	object	<optional>	The context in which the callback is invoked.

Returns:

Description:

The item that was removed.

Type:

*

Since: 3.4.0

Source: src/utils/array/RemoveAt.js (Line 9)

<static> RemoveBetween(array, startIndex, endIndex, [callback], [context])

Description:

Removes the item within the given range in the array.

The array is modified in-place.

You can optionally specify a callback to be invoked for the item/s successfully removed from the array.

Parameters:

name	type	arguments	description
array	array		The array to be modified.
startIndex	number		The start index to remove from.
endIndex	number		The end index to remove to.
callback	function	<optional>	A callback to be invoked for the item removed from the array.
context	object	<optional>	The context in which the callback is invoked.

Returns:

Description:

An array of items that were removed.

Type:

Array.<*>

Since: 3.4.0

Source: src/utils/array/RemoveBetween.js (Line 9)

<static> RemoveRandomElement(array, [start], [length])

Description:

Removes a random object from the given array and returns it. Will return null if there are no array items that fall within the specified range or if there is no item for the randomly chosen index.

Parameters:

name	type	arguments	Default	description
array	array			The array to removed a random element from.
start	number	<optional>	0	The array index to start the search from.
length	number	<optional>	array.length	Optional restriction on the number of elements to randomly select from.

Returns:

Description:

The random element that was removed, or null if there were no array elements that fell within the given range.

Type:

object

Since: 3.0.0

Source: src/utils/array/RemoveRandomElement.js (Line 9)

<static> Replace(array, oldChild, newChild)

Description:

Replaces an element of the array with the new element. The new element cannot already be a member of the array. The array is modified in-place.

Parameters:

name	type	description
array	array	The array to search within.
oldChild	*	The element in the array that will be replaced.
newChild	*	The element to be inserted into the array at the position of `oldChild`.

Returns:

Description:

Returns true if the oldChild was successfully replaced, otherwise returns false.

Type:

boolean

Since: 3.4.0

Source: src/utils/array/Replace.js (Line 7)

<static> RotateLeft(array, [total])

Description:

Moves the element at the start of the array to the end, shifting all items in the process. The "rotation" happens to the left.

Parameters:

name	type	arguments	Default	description
array	array			The array to shift to the left. This array is modified in place.
total	number	<optional>	1	The number of times to shift the array.

Returns:

Description:

The most recently shifted element.

Type:

*

Since: 3.0.0

Source: src/utils/array/RotateLeft.js (Line 7)

<static> RotateRight(array, [total])

Description:

Moves the element at the end of the array to the start, shifting all items in the process. The "rotation" happens to the right.

Parameters:

name	type	arguments	Default	description
array	array			The array to shift to the right. This array is modified in place.
total	number	<optional>	1	The number of times to shift the array.

Returns:

Description:

The most recently shifted element.

Type:

*

Since: 3.0.0

Source: src/utils/array/RotateRight.js (Line 7)

<static> SafeRange(array, startIndex, endIndex, [throwError])

Description:

Tests if the start and end indexes are a safe range for the given array.

Parameters:

name	type	arguments	Default	description
array	array			The array to check.
startIndex	number			The start index.
endIndex	number			The end index.
throwError	boolean	<optional>	true	Throw an error if the range is out of bounds.

Returns:

Description:

True if the range is safe, otherwise false.

Type:

boolean

Since: 3.4.0

Source: src/utils/array/SafeRange.js (Line 7)

<static> SendToBack(array, item)

Description:

Moves the given element to the bottom of the array. The array is modified in-place.

Parameters:

name	type	description
array	array	The array.
item	*	The element to move.

Returns:

Description:

The element that was moved.

Type:

*

Since: 3.4.0

Source: src/utils/array/SendToBack.js (Line 7)

<static> SetAll(array, property, value, [startIndex], [endIndex])

Description:

Scans the array for elements with the given property. If found, the property is set to the value.

For example: SetAll('visible', true) would set all elements that have a visible property to false.

Optionally you can specify a start and end index. For example if the array had 100 elements, and you set startIndex to 0 and endIndex to 50, it would update only the first 50 elements.

Parameters:

name	type	arguments	description
array	array		The array to search.
property	string		The property to test for on each array element.
value	*		The value to set the property to.
startIndex	number	<optional>	An optional start index to search from.
endIndex	number	<optional>	An optional end index to search to.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/SetAll.js (Line 9)

<static> Shuffle(array)

Description:

Shuffles the contents of the given array using the Fisher-Yates implementation.

The original array is modified directly and returned.

Parameters:

name	type	description
array	Array.<T>	The array to shuffle. This array is modified in place.

Returns:

Description:

The shuffled array.

Type:

Array.<T>

Since: 3.0.0

Source: src/utils/array/Shuffle.js (Line 7)

<static> SortByDigits(array)

Description:

Takes the given array and runs a numeric sort on it, ignoring any non-digits that may be in the entries.

You should only run this on arrays containing strings.

Parameters:

name	type	description
array	Array.<string>	The input array of strings.

Returns:

Description:

The sorted input array.

Type:

Array.<string>

Since: 3.50.0

Source: src/utils/array/SortByDigits.js (Line 7)

<static> SpliceOne(array, index)

Description:

Removes a single item from an array and returns it without creating gc, like the native splice does. Based on code by Mike Reinstein.

Parameters:

name	type	description
array	array	The array to splice from.
index	number	The index of the item which should be spliced.

Returns:

Description:

The item which was spliced (removed).

Type:

*

Since: 3.0.0

Source: src/utils/array/SpliceOne.js (Line 7)

<static> StableSort(array, [compare])

Description:

An in-place stable array sort, because Array#sort() is not guaranteed stable.

This is an implementation of merge sort, without recursion.

Function based on the Two-Screen/stable sort 0.1.8 from https://github.com/Two-Screen/stable

Parameters:

name	type	arguments	description
array	array		The input array to be sorted.
compare	function	<optional>	The comparison function.

Returns:

Description:

The sorted result.

Type:

array

Since: 3.0.0

Source: src/utils/array/StableSort.js (Line 140)

<static> Swap(array, item1, item2)

Description:

Swaps the position of two elements in the given array. The elements must exist in the same array. The array is modified in-place.

Parameters:

name	type	description
array	array	The input array.
item1	*	The first element to swap.
item2	*	The second element to swap.

Returns:

Description:

The input array.

Type:

array

Since: 3.4.0

Source: src/utils/array/Swap.js (Line 7)

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