godot-docs/classes/class_packedvector2array.rst

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.. _class_PackedVector2Array:

PackedVector2Array
==================

A packed array of :ref:`Vector2<class_Vector2>`\ s.

.. rst-class:: classref-introduction-group

Description
-----------

An array specifically designed to hold :ref:`Vector2<class_Vector2>`. Packs data tightly, so it saves memory for large array sizes.

.. note::

	There are notable differences when using this API with C#. See :ref:`doc_c_sharp_differences` for more information.

.. rst-class:: classref-introduction-group

Tutorials
---------

- `2D Navigation Astar Demo <https://godotengine.org/asset-library/asset/519>`__

.. rst-class:: classref-reftable-group

Constructors
------------

.. table::
   :widths: auto

   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`PackedVector2Array<class_PackedVector2Array_constructor_PackedVector2Array>` **(** **)**                                                          |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`PackedVector2Array<class_PackedVector2Array_constructor_PackedVector2Array>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` from **)** |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`PackedVector2Array<class_PackedVector2Array_constructor_PackedVector2Array>` **(** :ref:`Array<class_Array>` from **)**                           |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`append<class_PackedVector2Array_method_append>` **(** :ref:`Vector2<class_Vector2>` value **)**                                        |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`append_array<class_PackedVector2Array_method_append_array>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` array **)**      |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`bsearch<class_PackedVector2Array_method_bsearch>` **(** :ref:`Vector2<class_Vector2>` value, :ref:`bool<class_bool>` before=true **)** |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`clear<class_PackedVector2Array_method_clear>` **(** **)**                                                                              |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`count<class_PackedVector2Array_method_count>` **(** :ref:`Vector2<class_Vector2>` value **)** |const|                                  |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`duplicate<class_PackedVector2Array_method_duplicate>` **(** **)**                                                                      |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`fill<class_PackedVector2Array_method_fill>` **(** :ref:`Vector2<class_Vector2>` value **)**                                            |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`find<class_PackedVector2Array_method_find>` **(** :ref:`Vector2<class_Vector2>` value, :ref:`int<class_int>` from=0 **)** |const|      |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`has<class_PackedVector2Array_method_has>` **(** :ref:`Vector2<class_Vector2>` value **)** |const|                                      |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`insert<class_PackedVector2Array_method_insert>` **(** :ref:`int<class_int>` at_index, :ref:`Vector2<class_Vector2>` value **)**        |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`is_empty<class_PackedVector2Array_method_is_empty>` **(** **)** |const|                                                                |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`push_back<class_PackedVector2Array_method_push_back>` **(** :ref:`Vector2<class_Vector2>` value **)**                                  |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`remove_at<class_PackedVector2Array_method_remove_at>` **(** :ref:`int<class_int>` index **)**                                          |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`resize<class_PackedVector2Array_method_resize>` **(** :ref:`int<class_int>` new_size **)**                                             |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`reverse<class_PackedVector2Array_method_reverse>` **(** **)**                                                                          |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`rfind<class_PackedVector2Array_method_rfind>` **(** :ref:`Vector2<class_Vector2>` value, :ref:`int<class_int>` from=-1 **)** |const|   |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`set<class_PackedVector2Array_method_set>` **(** :ref:`int<class_int>` index, :ref:`Vector2<class_Vector2>` value **)**                 |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`size<class_PackedVector2Array_method_size>` **(** **)** |const|                                                                        |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`slice<class_PackedVector2Array_method_slice>` **(** :ref:`int<class_int>` begin, :ref:`int<class_int>` end=2147483647 **)** |const|    |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`sort<class_PackedVector2Array_method_sort>` **(** **)**                                                                                |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedByteArray<class_PackedByteArray>`       | :ref:`to_byte_array<class_PackedVector2Array_method_to_byte_array>` **(** **)** |const|                                                      |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-reftable-group

Operators
---------

.. table::
   :widths: auto

   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`operator !=<class_PackedVector2Array_operator_neq_PackedVector2Array>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)** |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`operator *<class_PackedVector2Array_operator_mul_Transform2D>` **(** :ref:`Transform2D<class_Transform2D>` right **)**                       |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`operator +<class_PackedVector2Array_operator_sum_PackedVector2Array>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)**  |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`operator ==<class_PackedVector2Array_operator_eq_PackedVector2Array>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)**  |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Vector2<class_Vector2>`                       | :ref:`operator []<class_PackedVector2Array_operator_idx_int>` **(** :ref:`int<class_int>` index **)**                                              |
   +-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Constructor Descriptions
------------------------

.. _class_PackedVector2Array_constructor_PackedVector2Array:

.. rst-class:: classref-constructor

:ref:`PackedVector2Array<class_PackedVector2Array>` **PackedVector2Array** **(** **)**

Constructs an empty **PackedVector2Array**.

.. rst-class:: classref-item-separator

----

.. rst-class:: classref-constructor

:ref:`PackedVector2Array<class_PackedVector2Array>` **PackedVector2Array** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` from **)**

Constructs a **PackedVector2Array** as a copy of the given **PackedVector2Array**.

.. rst-class:: classref-item-separator

----

.. rst-class:: classref-constructor

:ref:`PackedVector2Array<class_PackedVector2Array>` **PackedVector2Array** **(** :ref:`Array<class_Array>` from **)**

Constructs a new **PackedVector2Array**. Optionally, you can pass in a generic :ref:`Array<class_Array>` that will be converted.

\ **Note:** When initializing a **PackedVector2Array** with elements, it must be initialized with an :ref:`Array<class_Array>` of :ref:`Vector2<class_Vector2>` values:

::

    var array = PackedVector2Array([Vector2(12, 34), Vector2(56, 78)])

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Method Descriptions
-------------------

.. _class_PackedVector2Array_method_append:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **append** **(** :ref:`Vector2<class_Vector2>` value **)**

Appends an element at the end of the array (alias of :ref:`push_back<class_PackedVector2Array_method_push_back>`).

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_append_array:

.. rst-class:: classref-method

void **append_array** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` array **)**

Appends a **PackedVector2Array** at the end of this array.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_bsearch:

.. rst-class:: classref-method

:ref:`int<class_int>` **bsearch** **(** :ref:`Vector2<class_Vector2>` value, :ref:`bool<class_bool>` before=true **)**

Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search. Optionally, a ``before`` specifier can be passed. If ``false``, the returned index comes after all existing entries of the value in the array.

\ **Note:** Calling :ref:`bsearch<class_PackedVector2Array_method_bsearch>` on an unsorted array results in unexpected behavior.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_clear:

.. rst-class:: classref-method

void **clear** **(** **)**

Clears the array. This is equivalent to using :ref:`resize<class_PackedVector2Array_method_resize>` with a size of ``0``.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_count:

.. rst-class:: classref-method

:ref:`int<class_int>` **count** **(** :ref:`Vector2<class_Vector2>` value **)** |const|

Returns the number of times an element is in the array.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_duplicate:

.. rst-class:: classref-method

:ref:`PackedVector2Array<class_PackedVector2Array>` **duplicate** **(** **)**

Creates a copy of the array, and returns it.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_fill:

.. rst-class:: classref-method

void **fill** **(** :ref:`Vector2<class_Vector2>` value **)**

Assigns the given value to all elements in the array. This can typically be used together with :ref:`resize<class_PackedVector2Array_method_resize>` to create an array with a given size and initialized elements.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_find:

.. rst-class:: classref-method

:ref:`int<class_int>` **find** **(** :ref:`Vector2<class_Vector2>` value, :ref:`int<class_int>` from=0 **)** |const|

Searches the array for a value and returns its index or ``-1`` if not found. Optionally, the initial search index can be passed.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_has:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has** **(** :ref:`Vector2<class_Vector2>` value **)** |const|

Returns ``true`` if the array contains ``value``.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_insert:

.. rst-class:: classref-method

:ref:`int<class_int>` **insert** **(** :ref:`int<class_int>` at_index, :ref:`Vector2<class_Vector2>` value **)**

Inserts a new element at a given position in the array. The position must be valid, or at the end of the array (``idx == size()``).

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_is_empty:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_empty** **(** **)** |const|

Returns ``true`` if the array is empty.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_push_back:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **push_back** **(** :ref:`Vector2<class_Vector2>` value **)**

Inserts a :ref:`Vector2<class_Vector2>` at the end.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_remove_at:

.. rst-class:: classref-method

void **remove_at** **(** :ref:`int<class_int>` index **)**

Removes an element from the array by index.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_resize:

.. rst-class:: classref-method

:ref:`int<class_int>` **resize** **(** :ref:`int<class_int>` new_size **)**

Sets the size of the array. If the array is grown, reserves elements at the end of the array. If the array is shrunk, truncates the array to the new size.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_reverse:

.. rst-class:: classref-method

void **reverse** **(** **)**

Reverses the order of the elements in the array.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_rfind:

.. rst-class:: classref-method

:ref:`int<class_int>` **rfind** **(** :ref:`Vector2<class_Vector2>` value, :ref:`int<class_int>` from=-1 **)** |const|

Searches the array in reverse order. Optionally, a start search index can be passed. If negative, the start index is considered relative to the end of the array.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_set:

.. rst-class:: classref-method

void **set** **(** :ref:`int<class_int>` index, :ref:`Vector2<class_Vector2>` value **)**

Changes the :ref:`Vector2<class_Vector2>` at the given index.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_size:

.. rst-class:: classref-method

:ref:`int<class_int>` **size** **(** **)** |const|

Returns the number of elements in the array.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_slice:

.. rst-class:: classref-method

:ref:`PackedVector2Array<class_PackedVector2Array>` **slice** **(** :ref:`int<class_int>` begin, :ref:`int<class_int>` end=2147483647 **)** |const|

Returns the slice of the **PackedVector2Array**, from ``begin`` (inclusive) to ``end`` (exclusive), as a new **PackedVector2Array**.

The absolute value of ``begin`` and ``end`` will be clamped to the array size, so the default value for ``end`` makes it slice to the size of the array by default (i.e. ``arr.slice(1)`` is a shorthand for ``arr.slice(1, arr.size())``).

If either ``begin`` or ``end`` are negative, they will be relative to the end of the array (i.e. ``arr.slice(0, -2)`` is a shorthand for ``arr.slice(0, arr.size() - 2)``).

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_sort:

.. rst-class:: classref-method

void **sort** **(** **)**

Sorts the elements of the array in ascending order.

\ **Note:** Vectors with :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` elements don't behave the same as other vectors. Therefore, the results from this method may not be accurate if NaNs are included.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_method_to_byte_array:

.. rst-class:: classref-method

:ref:`PackedByteArray<class_PackedByteArray>` **to_byte_array** **(** **)** |const|

Returns a :ref:`PackedByteArray<class_PackedByteArray>` with each vector encoded as bytes.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Operator Descriptions
---------------------

.. _class_PackedVector2Array_operator_neq_PackedVector2Array:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator !=** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)**

Returns ``true`` if contents of the arrays differ.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_operator_mul_Transform2D:

.. rst-class:: classref-operator

:ref:`PackedVector2Array<class_PackedVector2Array>` **operator *** **(** :ref:`Transform2D<class_Transform2D>` right **)**

Returns a new **PackedVector2Array** with all vectors in this array inversely transformed (multiplied) by the given :ref:`Transform2D<class_Transform2D>` transformation matrix, under the assumption that the transformation basis is orthonormal (i.e. rotation/reflection is fine, scaling/skew is not).

\ ``array * transform`` is equivalent to ``transform.inverse() * array``. See :ref:`Transform2D.inverse<class_Transform2D_method_inverse>`.

For transforming by inverse of an affine transformation (e.g. with scaling) ``transform.affine_inverse() * array`` can be used instead. See :ref:`Transform2D.affine_inverse<class_Transform2D_method_affine_inverse>`.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_operator_sum_PackedVector2Array:

.. rst-class:: classref-operator

:ref:`PackedVector2Array<class_PackedVector2Array>` **operator +** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)**

Returns a new **PackedVector2Array** with contents of ``right`` added at the end of this array. For better performance, consider using :ref:`append_array<class_PackedVector2Array_method_append_array>` instead.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_operator_eq_PackedVector2Array:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator ==** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` right **)**

Returns ``true`` if contents of both arrays are the same, i.e. they have all equal :ref:`Vector2<class_Vector2>`\ s at the corresponding indices.

.. rst-class:: classref-item-separator

----

.. _class_PackedVector2Array_operator_idx_int:

.. rst-class:: classref-operator

:ref:`Vector2<class_Vector2>` **operator []** **(** :ref:`int<class_int>` index **)**

Returns the :ref:`Vector2<class_Vector2>` at index ``index``. Negative indices can be used to access the elements starting from the end. Using index out of array's bounds will result in an error.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`