virtualx-engine/doc/classes/VisibilityNotifier2D.xml
Hugo Locurcio b087538119
Add an XML schema for documentation
This makes it easier to spot syntax errors when editing the
class reference. The schema is referenced locally so validation
can still work offline.

Each class XML's schema conformance is also checked on GitHub Actions.
2022-03-16 23:01:02 +01:00

54 lines
2.4 KiB
XML

<?xml version="1.0" encoding="UTF-8" ?>
<class name="VisibilityNotifier2D" inherits="Node2D" version="3.5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
<brief_description>
Detects approximately when the node is visible on screen.
</brief_description>
<description>
The VisibilityNotifier2D detects when it is visible on the screen. It also notifies when its bounding rectangle enters or exits the screen or a viewport.
If you want nodes to be disabled automatically when they exit the screen, use [VisibilityEnabler2D] instead.
[b]Note:[/b] For performance reasons, VisibilityNotifier2D uses an approximate heuristic with precision determined by [member ProjectSettings.world/2d/cell_size]. If you need precise visibility checking, use another method such as adding an [Area2D] node as a child of a [Camera2D] node.
</description>
<tutorials>
<link title="2D Dodge The Creeps Demo">https://godotengine.org/asset-library/asset/515</link>
</tutorials>
<methods>
<method name="is_on_screen" qualifiers="const">
<return type="bool" />
<description>
If [code]true[/code], the bounding rectangle is on the screen.
[b]Note:[/b] It takes one frame for the node's visibility to be assessed once added to the scene tree, so this method will return [code]false[/code] right after it is instantiated, even if it will be on screen in the draw pass.
</description>
</method>
</methods>
<members>
<member name="rect" type="Rect2" setter="set_rect" getter="get_rect" default="Rect2( -10, -10, 20, 20 )">
The VisibilityNotifier2D's bounding rectangle.
</member>
</members>
<signals>
<signal name="screen_entered">
<description>
Emitted when the VisibilityNotifier2D enters the screen.
</description>
</signal>
<signal name="screen_exited">
<description>
Emitted when the VisibilityNotifier2D exits the screen.
</description>
</signal>
<signal name="viewport_entered">
<argument index="0" name="viewport" type="Viewport" />
<description>
Emitted when the VisibilityNotifier2D enters a [Viewport]'s view.
</description>
</signal>
<signal name="viewport_exited">
<argument index="0" name="viewport" type="Viewport" />
<description>
Emitted when the VisibilityNotifier2D exits a [Viewport]'s view.
</description>
</signal>
</signals>
<constants>
</constants>
</class>