.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the CollisionPolygon2D.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_CollisionPolygon2D:

CollisionPolygon2D
==================

**Inherits:** :ref:`Node2D<class_node2d>` **<** :ref:`CanvasItem<class_canvasitem>` **<** :ref:`Node<class_node>` **<** :ref:`Object<class_object>`

**Category:** Core

Brief Description
-----------------

Defines a 2D collision polygon.

Member Functions
----------------

+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                            | :ref:`get_build_mode<class_CollisionPolygon2D_get_build_mode>`  **(** **)** const                                              |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PoolVector2Array<class_poolvector2array>`  | :ref:`get_polygon<class_CollisionPolygon2D_get_polygon>`  **(** **)** const                                                    |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`                          | :ref:`is_disabled<class_CollisionPolygon2D_is_disabled>`  **(** **)** const                                                    |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`                          | :ref:`is_one_way_collision_enabled<class_CollisionPolygon2D_is_one_way_collision_enabled>`  **(** **)** const                  |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| void                                             | :ref:`set_build_mode<class_CollisionPolygon2D_set_build_mode>`  **(** :ref:`int<class_int>` build_mode  **)**                  |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| void                                             | :ref:`set_disabled<class_CollisionPolygon2D_set_disabled>`  **(** :ref:`bool<class_bool>` disabled  **)**                      |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| void                                             | :ref:`set_one_way_collision<class_CollisionPolygon2D_set_one_way_collision>`  **(** :ref:`bool<class_bool>` enabled  **)**     |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+
| void                                             | :ref:`set_polygon<class_CollisionPolygon2D_set_polygon>`  **(** :ref:`PoolVector2Array<class_poolvector2array>` polygon  **)** |
+--------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------+

Member Variables
----------------

- :ref:`int<class_int>` **build_mode** - Collision build mode. Use one of the [code]BUILD_*[/code] constants. Default value: [code]BUILD_SOLIDS[/code].
- :ref:`bool<class_bool>` **disabled** - If [code]true[/code] no collisions will be detected.
- :ref:`bool<class_bool>` **one_way_collision** - If [code]true[/code] only edges that face up, relative to CollisionPolygon2D's rotation, will collide with other objects.
- :ref:`PoolVector2Array<class_poolvector2array>` **polygon** - The polygon's list of vertices. The final point will be connected to the first.

Numeric Constants
-----------------

- **BUILD_SOLIDS** = **0** --- Collisions will include the polygon and its contained area.
- **BUILD_SEGMENTS** = **1** --- Collisions will only include the polygon edges.

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

Provides a 2D collision polygon to a :ref:`CollisionObject2D<class_collisionobject2d>` parent. Polygon can be drawn in the editor or specified by a list of vertices.

Member Function Description
---------------------------

.. _class_CollisionPolygon2D_get_build_mode:

- :ref:`int<class_int>`  **get_build_mode**  **(** **)** const

Return whether the polygon is a :ref:`ConvexPolygonShape2D<class_convexpolygonshape2d>` (``build_mode==0``), or a :ref:`ConcavePolygonShape2D<class_concavepolygonshape2d>` (``build_mode==1``).

.. _class_CollisionPolygon2D_get_polygon:

- :ref:`PoolVector2Array<class_poolvector2array>`  **get_polygon**  **(** **)** const

Return the list of points that define the polygon.

.. _class_CollisionPolygon2D_is_disabled:

- :ref:`bool<class_bool>`  **is_disabled**  **(** **)** const

.. _class_CollisionPolygon2D_is_one_way_collision_enabled:

- :ref:`bool<class_bool>`  **is_one_way_collision_enabled**  **(** **)** const

.. _class_CollisionPolygon2D_set_build_mode:

- void  **set_build_mode**  **(** :ref:`int<class_int>` build_mode  **)**

Set whether the polygon is to be a :ref:`ConvexPolygonShape2D<class_convexpolygonshape2d>` (``build_mode==0``), or a :ref:`ConcavePolygonShape2D<class_concavepolygonshape2d>` (``build_mode==1``).

.. _class_CollisionPolygon2D_set_disabled:

- void  **set_disabled**  **(** :ref:`bool<class_bool>` disabled  **)**

.. _class_CollisionPolygon2D_set_one_way_collision:

- void  **set_one_way_collision**  **(** :ref:`bool<class_bool>` enabled  **)**

.. _class_CollisionPolygon2D_set_polygon:

- void  **set_polygon**  **(** :ref:`PoolVector2Array<class_poolvector2array>` polygon  **)**

Set the array of points forming the polygon.

When editing the point list via the editor, depending on :ref:`get_build_mode<class_CollisionPolygon2D_get_build_mode>`, it has to be a list of points (for ``build_mode==0``), or a list of lines (for ``build_mode==1``). In the second case, the even elements of the array define the start point of the line, and the odd elements the end point.