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https://github.com/godotengine/godot
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40 lines
1.9 KiB
XML
40 lines
1.9 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="VisibleOnScreenNotifier2D" inherits="Node2D" version="4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
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<brief_description>
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Detects when the node extents are visible on screen.
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</brief_description>
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<description>
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The VisibleOnScreenNotifier2D detects when it is visible on the screen. It also notifies when its bounding rectangle enters or exits the screen or a viewport.
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If you want nodes to be disabled automatically when they exit the screen, use [VisibleOnScreenEnabler2D] instead.
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[b]Note:[/b] VisibleOnScreenNotifier2D uses the render culling code to determine whether it's visible on screen, which also means that its [member CanvasItem.visible] must be [code]true[/code] to work correctly.
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</description>
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<tutorials>
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<link title="2D Dodge The Creeps Demo">https://godotengine.org/asset-library/asset/515</link>
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</tutorials>
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<methods>
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<method name="is_on_screen" qualifiers="const">
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<return type="bool" />
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<description>
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If [code]true[/code], the bounding rectangle is on the screen.
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[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.
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</description>
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</method>
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</methods>
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<members>
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<member name="rect" type="Rect2" setter="set_rect" getter="get_rect" default="Rect2(-10, -10, 20, 20)">
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The VisibleOnScreenNotifier2D's bounding rectangle.
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</member>
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</members>
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<signals>
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<signal name="screen_entered">
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<description>
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Emitted when the VisibleOnScreenNotifier2D enters the screen.
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</description>
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</signal>
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<signal name="screen_exited">
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<description>
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Emitted when the VisibleOnScreenNotifier2D exits the screen.
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</description>
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</signal>
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</signals>
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</class>
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