godot-docs/classes/class_rect2.rst

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.. _class_Rect2:

Rect2
=====

A 2D axis-aligned bounding box using floating-point coordinates.

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

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

**Rect2** consists of a position, a size, and several utility functions. It is typically used for fast overlap tests.

It uses floating-point coordinates. If you need integer coordinates, use :ref:`Rect2i<class_Rect2i>` instead.

The 3D counterpart to **Rect2** is :ref:`AABB<class_AABB>`.

Negative values for :ref:`size<class_Rect2_property_size>` are not supported and will not work for most methods. Use :ref:`abs<class_Rect2_method_abs>` to get a Rect2 with a positive size.

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

Tutorials
---------

- :doc:`Math documentation index <../tutorials/math/index>`

- :doc:`Vector math <../tutorials/math/vector_math>`

- :doc:`Advanced vector math <../tutorials/math/vectors_advanced>`

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Properties
----------

.. table::
   :widths: auto

   +-------------------------------+------------------------------------------------+-------------------+
   | :ref:`Vector2<class_Vector2>` | :ref:`end<class_Rect2_property_end>`           | ``Vector2(0, 0)`` |
   +-------------------------------+------------------------------------------------+-------------------+
   | :ref:`Vector2<class_Vector2>` | :ref:`position<class_Rect2_property_position>` | ``Vector2(0, 0)`` |
   +-------------------------------+------------------------------------------------+-------------------+
   | :ref:`Vector2<class_Vector2>` | :ref:`size<class_Rect2_property_size>`         | ``Vector2(0, 0)`` |
   +-------------------------------+------------------------------------------------+-------------------+

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

.. table::
   :widths: auto

   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`Rect2<class_Rect2_constructor_Rect2>` **(** **)**                                                                                                                             |
   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`Rect2<class_Rect2_constructor_Rect2>` **(** :ref:`Rect2<class_Rect2>` from **)**                                                                                              |
   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`Rect2<class_Rect2_constructor_Rect2>` **(** :ref:`Rect2i<class_Rect2i>` from **)**                                                                                            |
   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`Rect2<class_Rect2_constructor_Rect2>` **(** :ref:`Vector2<class_Vector2>` position, :ref:`Vector2<class_Vector2>` size **)**                                                  |
   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`Rect2<class_Rect2_constructor_Rect2>` **(** :ref:`float<class_float>` x, :ref:`float<class_float>` y, :ref:`float<class_float>` width, :ref:`float<class_float>` height **)** |
   +---------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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Methods
-------

.. table::
   :widths: auto

   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`abs<class_Rect2_method_abs>` **(** **)** |const|                                                                                                                                                          |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`encloses<class_Rect2_method_encloses>` **(** :ref:`Rect2<class_Rect2>` b **)** |const|                                                                                                                    |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`expand<class_Rect2_method_expand>` **(** :ref:`Vector2<class_Vector2>` to **)** |const|                                                                                                                   |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`float<class_float>`     | :ref:`get_area<class_Rect2_method_get_area>` **(** **)** |const|                                                                                                                                                |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Vector2<class_Vector2>` | :ref:`get_center<class_Rect2_method_get_center>` **(** **)** |const|                                                                                                                                            |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`grow<class_Rect2_method_grow>` **(** :ref:`float<class_float>` amount **)** |const|                                                                                                                       |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`grow_individual<class_Rect2_method_grow_individual>` **(** :ref:`float<class_float>` left, :ref:`float<class_float>` top, :ref:`float<class_float>` right, :ref:`float<class_float>` bottom **)** |const| |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`grow_side<class_Rect2_method_grow_side>` **(** :ref:`int<class_int>` side, :ref:`float<class_float>` amount **)** |const|                                                                                 |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`has_area<class_Rect2_method_has_area>` **(** **)** |const|                                                                                                                                                |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`has_point<class_Rect2_method_has_point>` **(** :ref:`Vector2<class_Vector2>` point **)** |const|                                                                                                          |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`intersection<class_Rect2_method_intersection>` **(** :ref:`Rect2<class_Rect2>` b **)** |const|                                                                                                            |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`intersects<class_Rect2_method_intersects>` **(** :ref:`Rect2<class_Rect2>` b, :ref:`bool<class_bool>` include_borders=false **)** |const|                                                                 |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`is_equal_approx<class_Rect2_method_is_equal_approx>` **(** :ref:`Rect2<class_Rect2>` rect **)** |const|                                                                                                   |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`       | :ref:`is_finite<class_Rect2_method_is_finite>` **(** **)** |const|                                                                                                                                              |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`     | :ref:`merge<class_Rect2_method_merge>` **(** :ref:`Rect2<class_Rect2>` b **)** |const|                                                                                                                          |
   +-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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

Operators
---------

.. table::
   :widths: auto

   +---------------------------+-----------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`   | :ref:`operator !=<class_Rect2_operator_neq_Rect2>` **(** :ref:`Rect2<class_Rect2>` right **)**                  |
   +---------------------------+-----------------------------------------------------------------------------------------------------------------+
   | :ref:`Rect2<class_Rect2>` | :ref:`operator *<class_Rect2_operator_mul_Transform2D>` **(** :ref:`Transform2D<class_Transform2D>` right **)** |
   +---------------------------+-----------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`   | :ref:`operator ==<class_Rect2_operator_eq_Rect2>` **(** :ref:`Rect2<class_Rect2>` right **)**                   |
   +---------------------------+-----------------------------------------------------------------------------------------------------------------+

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

----

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

Property Descriptions
---------------------

.. _class_Rect2_property_end:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **end** = ``Vector2(0, 0)``

Ending corner. This is calculated as ``position + size``. Setting this value will change the size.

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

----

.. _class_Rect2_property_position:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **position** = ``Vector2(0, 0)``

Beginning corner. Typically has values lower than :ref:`end<class_Rect2_property_end>`.

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

----

.. _class_Rect2_property_size:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **size** = ``Vector2(0, 0)``

Size from :ref:`position<class_Rect2_property_position>` to :ref:`end<class_Rect2_property_end>`. Typically, all components are positive.

If the size is negative, you can use :ref:`abs<class_Rect2_method_abs>` to fix it.

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

----

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

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

.. _class_Rect2_constructor_Rect2:

.. rst-class:: classref-constructor

:ref:`Rect2<class_Rect2>` **Rect2** **(** **)**

Constructs a default-initialized **Rect2** with default (zero) values of :ref:`position<class_Rect2_property_position>` and :ref:`size<class_Rect2_property_size>`.

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

----

.. rst-class:: classref-constructor

:ref:`Rect2<class_Rect2>` **Rect2** **(** :ref:`Rect2<class_Rect2>` from **)**

Constructs a **Rect2** as a copy of the given **Rect2**.

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

----

.. rst-class:: classref-constructor

:ref:`Rect2<class_Rect2>` **Rect2** **(** :ref:`Rect2i<class_Rect2i>` from **)**

Constructs a **Rect2** from a :ref:`Rect2i<class_Rect2i>`.

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

----

.. rst-class:: classref-constructor

:ref:`Rect2<class_Rect2>` **Rect2** **(** :ref:`Vector2<class_Vector2>` position, :ref:`Vector2<class_Vector2>` size **)**

Constructs a **Rect2** by position and size.

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

----

.. rst-class:: classref-constructor

:ref:`Rect2<class_Rect2>` **Rect2** **(** :ref:`float<class_float>` x, :ref:`float<class_float>` y, :ref:`float<class_float>` width, :ref:`float<class_float>` height **)**

Constructs a **Rect2** by x, y, width, and height.

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

----

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

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

.. _class_Rect2_method_abs:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **abs** **(** **)** |const|

Returns a **Rect2** with equivalent position and area, modified so that the top-left corner is the origin and ``width`` and ``height`` are positive.

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

----

.. _class_Rect2_method_encloses:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **encloses** **(** :ref:`Rect2<class_Rect2>` b **)** |const|

Returns ``true`` if this **Rect2** completely encloses another one.

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

----

.. _class_Rect2_method_expand:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **expand** **(** :ref:`Vector2<class_Vector2>` to **)** |const|

Returns a copy of this **Rect2** expanded to include a given point.

\ **Example:**\ 


.. tabs::

 .. code-tab:: gdscript

    # position (-3, 2), size (1, 1)
    var rect = Rect2(Vector2(-3, 2), Vector2(1, 1))
    # position (-3, -1), size (3, 4), so we fit both rect and Vector2(0, -1)
    var rect2 = rect.expand(Vector2(0, -1))

 .. code-tab:: csharp

    // position (-3, 2), size (1, 1)
    var rect = new Rect2(new Vector2(-3, 2), new Vector2(1, 1));
    // position (-3, -1), size (3, 4), so we fit both rect and Vector2(0, -1)
    var rect2 = rect.Expand(new Vector2(0, -1));



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

----

.. _class_Rect2_method_get_area:

.. rst-class:: classref-method

:ref:`float<class_float>` **get_area** **(** **)** |const|

Returns the area of the **Rect2**. See also :ref:`has_area<class_Rect2_method_has_area>`.

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

----

.. _class_Rect2_method_get_center:

.. rst-class:: classref-method

:ref:`Vector2<class_Vector2>` **get_center** **(** **)** |const|

Returns the center of the **Rect2**, which is equal to :ref:`position<class_Rect2_property_position>` + (:ref:`size<class_Rect2_property_size>` / 2).

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

----

.. _class_Rect2_method_grow:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **grow** **(** :ref:`float<class_float>` amount **)** |const|

Returns a copy of the **Rect2** grown by the specified ``amount`` on all sides.

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

----

.. _class_Rect2_method_grow_individual:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **grow_individual** **(** :ref:`float<class_float>` left, :ref:`float<class_float>` top, :ref:`float<class_float>` right, :ref:`float<class_float>` bottom **)** |const|

Returns a copy of the **Rect2** grown by the specified amount on each side individually.

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

----

.. _class_Rect2_method_grow_side:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **grow_side** **(** :ref:`int<class_int>` side, :ref:`float<class_float>` amount **)** |const|

Returns a copy of the **Rect2** grown by the specified ``amount`` on the specified :ref:`Side<enum_@GlobalScope_Side>`.

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

----

.. _class_Rect2_method_has_area:

.. rst-class:: classref-method

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

Returns ``true`` if the **Rect2** has area, and ``false`` if the **Rect2** is linear, empty, or has a negative :ref:`size<class_Rect2_property_size>`. See also :ref:`get_area<class_Rect2_method_get_area>`.

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

----

.. _class_Rect2_method_has_point:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has_point** **(** :ref:`Vector2<class_Vector2>` point **)** |const|

Returns ``true`` if the **Rect2** contains a point. By convention, the right and bottom edges of the **Rect2** are considered exclusive, so points on these edges are **not** included.

\ **Note:** This method is not reliable for **Rect2** with a *negative size*. Use :ref:`abs<class_Rect2_method_abs>` to get a positive sized equivalent rectangle to check for contained points.

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

----

.. _class_Rect2_method_intersection:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **intersection** **(** :ref:`Rect2<class_Rect2>` b **)** |const|

Returns the intersection of this **Rect2** and ``b``.

If the rectangles do not intersect, an empty **Rect2** is returned.

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

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.. _class_Rect2_method_intersects:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **intersects** **(** :ref:`Rect2<class_Rect2>` b, :ref:`bool<class_bool>` include_borders=false **)** |const|

Returns ``true`` if the **Rect2** overlaps with ``b`` (i.e. they have at least one point in common).

If ``include_borders`` is ``true``, they will also be considered overlapping if their borders touch, even without intersection.

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

----

.. _class_Rect2_method_is_equal_approx:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_equal_approx** **(** :ref:`Rect2<class_Rect2>` rect **)** |const|

Returns ``true`` if this **Rect2** and ``rect`` are approximately equal, by calling ``is_equal_approx`` on each component.

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

----

.. _class_Rect2_method_is_finite:

.. rst-class:: classref-method

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

Returns ``true`` if this **Rect2** is finite, by calling :ref:`@GlobalScope.is_finite<class_@GlobalScope_method_is_finite>` on each component.

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

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.. _class_Rect2_method_merge:

.. rst-class:: classref-method

:ref:`Rect2<class_Rect2>` **merge** **(** :ref:`Rect2<class_Rect2>` b **)** |const|

Returns a larger **Rect2** that contains this **Rect2** and ``b``.

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

----

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

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

.. _class_Rect2_operator_neq_Rect2:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator !=** **(** :ref:`Rect2<class_Rect2>` right **)**

Returns ``true`` if the rectangles are not equal.

\ **Note:** Due to floating-point precision errors, consider using :ref:`is_equal_approx<class_Rect2_method_is_equal_approx>` instead, which is more reliable.

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

----

.. _class_Rect2_operator_mul_Transform2D:

.. rst-class:: classref-operator

:ref:`Rect2<class_Rect2>` **operator *** **(** :ref:`Transform2D<class_Transform2D>` right **)**

Inversely transforms (multiplies) the **Rect2** by the given :ref:`Transform2D<class_Transform2D>` transformation matrix.

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

----

.. _class_Rect2_operator_eq_Rect2:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator ==** **(** :ref:`Rect2<class_Rect2>` right **)**

Returns ``true`` if the rectangles are exactly equal.

\ **Note:** Due to floating-point precision errors, consider using :ref:`is_equal_approx<class_Rect2_method_is_equal_approx>` instead, which is more reliable.

.. |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.)`