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VisibleOnScreenNotifier2D

Inherits: Node2D < CanvasItem < Node < Object

Inherited By: VisibleOnScreenEnabler2D

Detects when the node extents are visible on screen.

描述

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.

If you want nodes to be disabled automatically when they exit the screen, use VisibleOnScreenEnabler2D instead.

Note: VisibleOnScreenNotifier2D uses the render culling code to determine whether it's visible on screen, which also means that its CanvasItem.visible must be true to work correctly.

教程

属性

Rect2

rect

Rect2(-10, -10, 20, 20)

Methods

bool

is_on_screen ( ) const

信号

screen_entered ( )

Emitted when the VisibleOnScreenNotifier2D enters the screen.

screen_exited ( )

Emitted when the VisibleOnScreenNotifier2D exits the screen.

Property Descriptions

Rect2 rect = Rect2(-10, -10, 20, 20)

  • void set_rect ( Rect2 value )

  • Rect2 get_rect ( )

The VisibleOnScreenNotifier2D's bounding rectangle.

Method Descriptions

bool is_on_screen ( ) const

If true, the bounding rectangle is on the screen.

Note: It takes one frame for the node's visibility to be assessed once added to the scene tree, so this method will return false right after it is instantiated, even if it will be on screen in the draw pass.