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ReStructuredText
269 lines
11 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/3.5/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/3.5/doc/classes/CanvasLayer.xml.
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.. _class_CanvasLayer:
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CanvasLayer
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===========
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**Inherits:** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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**Inherited By:** :ref:`ParallaxBackground<class_ParallaxBackground>`
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Canvas drawing layer.
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Description
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-----------
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Canvas drawing layer. :ref:`CanvasItem<class_CanvasItem>` nodes that are direct or indirect children of a ``CanvasLayer`` will be drawn in that layer. The layer is a numeric index that defines the draw order. The default 2D scene renders with index 0, so a ``CanvasLayer`` with index -1 will be drawn below, and one with index 1 will be drawn above. This is very useful for HUDs (in layer 1+ or above), or backgrounds (in layer -1 or below).
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Tutorials
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---------
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- :doc:`Viewport and canvas transforms <../tutorials/2d/2d_transforms>`
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- :doc:`Canvas layers <../tutorials/2d/canvas_layers>`
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- `2D Dodge The Creeps Demo <https://godotengine.org/asset-library/asset/515>`__
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Properties
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----------
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`Node<class_Node>` | :ref:`custom_viewport<class_CanvasLayer_property_custom_viewport>` | |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`follow_viewport_enable<class_CanvasLayer_property_follow_viewport_enable>` | ``false`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`float<class_float>` | :ref:`follow_viewport_scale<class_CanvasLayer_property_follow_viewport_scale>` | ``1.0`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`int<class_int>` | :ref:`layer<class_CanvasLayer_property_layer>` | ``1`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`offset<class_CanvasLayer_property_offset>` | ``Vector2( 0, 0 )`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`float<class_float>` | :ref:`rotation<class_CanvasLayer_property_rotation>` | ``0.0`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`float<class_float>` | :ref:`rotation_degrees<class_CanvasLayer_property_rotation_degrees>` | ``0.0`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scale<class_CanvasLayer_property_scale>` | ``Vector2( 1, 1 )`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`Transform2D<class_Transform2D>` | :ref:`transform<class_CanvasLayer_property_transform>` | ``Transform2D( 1, 0, 0, 1, 0, 0 )`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`visible<class_CanvasLayer_property_visible>` | ``true`` |
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+---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
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Methods
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-------
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+-----------------------+----------------------------------------------------------------------------+
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| :ref:`RID<class_RID>` | :ref:`get_canvas<class_CanvasLayer_method_get_canvas>` **(** **)** |const| |
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+-----------------------+----------------------------------------------------------------------------+
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| void | :ref:`hide<class_CanvasLayer_method_hide>` **(** **)** |
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+-----------------------+----------------------------------------------------------------------------+
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| void | :ref:`show<class_CanvasLayer_method_show>` **(** **)** |
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+-----------------------+----------------------------------------------------------------------------+
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Signals
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-------
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.. _class_CanvasLayer_signal_visibility_changed:
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- **visibility_changed** **(** **)**
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Emitted when visibility of the layer is changed. See :ref:`visible<class_CanvasLayer_property_visible>`.
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Property Descriptions
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---------------------
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.. _class_CanvasLayer_property_custom_viewport:
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- :ref:`Node<class_Node>` **custom_viewport**
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+----------+----------------------------+
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| *Setter* | set_custom_viewport(value) |
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+----------+----------------------------+
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| *Getter* | get_custom_viewport() |
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+----------+----------------------------+
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The custom :ref:`Viewport<class_Viewport>` node assigned to the ``CanvasLayer``. If ``null``, uses the default viewport instead.
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----
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.. _class_CanvasLayer_property_follow_viewport_enable:
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- :ref:`bool<class_bool>` **follow_viewport_enable**
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+-----------+----------------------------+
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| *Default* | ``false`` |
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+-----------+----------------------------+
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| *Setter* | set_follow_viewport(value) |
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+-----------+----------------------------+
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| *Getter* | is_following_viewport() |
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+-----------+----------------------------+
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If enabled, the ``CanvasLayer`` will use the viewport's transform, so it will move when camera moves instead of being anchored in a fixed position on the screen.
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Together with :ref:`follow_viewport_scale<class_CanvasLayer_property_follow_viewport_scale>` it can be used for a pseudo 3D effect.
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----
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.. _class_CanvasLayer_property_follow_viewport_scale:
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- :ref:`float<class_float>` **follow_viewport_scale**
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+-----------+----------------------------------+
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| *Default* | ``1.0`` |
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+-----------+----------------------------------+
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| *Setter* | set_follow_viewport_scale(value) |
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+-----------+----------------------------------+
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| *Getter* | get_follow_viewport_scale() |
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+-----------+----------------------------------+
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Scales the layer when using :ref:`follow_viewport_enable<class_CanvasLayer_property_follow_viewport_enable>`. Layers moving into the foreground should have increasing scales, while layers moving into the background should have decreasing scales.
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----
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.. _class_CanvasLayer_property_layer:
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- :ref:`int<class_int>` **layer**
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+-----------+------------------+
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| *Default* | ``1`` |
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+-----------+------------------+
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| *Setter* | set_layer(value) |
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+-----------+------------------+
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| *Getter* | get_layer() |
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+-----------+------------------+
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Layer index for draw order. Lower values are drawn first.
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----
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.. _class_CanvasLayer_property_offset:
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- :ref:`Vector2<class_Vector2>` **offset**
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+-----------+---------------------+
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| *Default* | ``Vector2( 0, 0 )`` |
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+-----------+---------------------+
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| *Setter* | set_offset(value) |
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+-----------+---------------------+
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| *Getter* | get_offset() |
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+-----------+---------------------+
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The layer's base offset.
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----
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.. _class_CanvasLayer_property_rotation:
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- :ref:`float<class_float>` **rotation**
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+-----------+---------------------+
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| *Default* | ``0.0`` |
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+-----------+---------------------+
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| *Setter* | set_rotation(value) |
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+-----------+---------------------+
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| *Getter* | get_rotation() |
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+-----------+---------------------+
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The layer's rotation in radians.
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----
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.. _class_CanvasLayer_property_rotation_degrees:
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- :ref:`float<class_float>` **rotation_degrees**
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+-----------+-----------------------------+
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| *Default* | ``0.0`` |
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+-----------+-----------------------------+
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| *Setter* | set_rotation_degrees(value) |
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+-----------+-----------------------------+
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| *Getter* | get_rotation_degrees() |
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+-----------+-----------------------------+
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The layer's rotation in degrees.
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----
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.. _class_CanvasLayer_property_scale:
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- :ref:`Vector2<class_Vector2>` **scale**
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+-----------+---------------------+
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| *Default* | ``Vector2( 1, 1 )`` |
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+-----------+---------------------+
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| *Setter* | set_scale(value) |
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+-----------+---------------------+
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| *Getter* | get_scale() |
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+-----------+---------------------+
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The layer's scale.
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----
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.. _class_CanvasLayer_property_transform:
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- :ref:`Transform2D<class_Transform2D>` **transform**
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+-----------+-------------------------------------+
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| *Default* | ``Transform2D( 1, 0, 0, 1, 0, 0 )`` |
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+-----------+-------------------------------------+
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| *Setter* | set_transform(value) |
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+-----------+-------------------------------------+
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| *Getter* | get_transform() |
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+-----------+-------------------------------------+
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The layer's transform.
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----
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.. _class_CanvasLayer_property_visible:
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- :ref:`bool<class_bool>` **visible**
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+-----------+--------------------+
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| *Default* | ``true`` |
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+-----------+--------------------+
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| *Setter* | set_visible(value) |
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+-----------+--------------------+
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| *Getter* | is_visible() |
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+-----------+--------------------+
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If ``false``, any :ref:`CanvasItem<class_CanvasItem>` under this ``CanvasLayer`` will be hidden.
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Unlike :ref:`CanvasItem.visible<class_CanvasItem_property_visible>`, visibility of a ``CanvasLayer`` isn't propagated to underlying layers.
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Method Descriptions
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-------------------
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.. _class_CanvasLayer_method_get_canvas:
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- :ref:`RID<class_RID>` **get_canvas** **(** **)** |const|
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Returns the RID of the canvas used by this layer.
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----
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.. _class_CanvasLayer_method_hide:
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- void **hide** **(** **)**
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Hides any :ref:`CanvasItem<class_CanvasItem>` under this ``CanvasLayer``. This is equivalent to setting :ref:`visible<class_CanvasLayer_property_visible>` to ``false``.
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----
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.. _class_CanvasLayer_method_show:
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- void **show** **(** **)**
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Shows any :ref:`CanvasItem<class_CanvasItem>` under this ``CanvasLayer``. This is equivalent to setting :ref:`visible<class_CanvasLayer_property_visible>` to ``true``.
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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