TouchScreenButton

继承: Node2D < CanvasItem < Node < Object

Button for touch screen devices for gameplay use.

描述

TouchScreenButton allows you to create on-screen buttons for touch devices. It's intended for gameplay use, such as a unit you have to touch to move. Unlike Button, TouchScreenButton supports multitouch out of the box. Several TouchScreenButtons can be pressed at the same time with touch input.

This node inherits from Node2D. Unlike with Control nodes, you cannot set anchors on it. If you want to create menus or user interfaces, you may want to use Button nodes instead. To make button nodes react to touch events, you can enable the Emulate Mouse option in the Project Settings.

You can configure TouchScreenButton to be visible only on touch devices, helping you develop your game both for desktop and mobile devices.

属性

方法

boolis_pressed ( ) const1

信号

pressed ( )

Emitted when the button is pressed (down).


released ( )

Emitted when the button is released (up).


枚举

enum VisibilityMode:

VisibilityMode VISIBILITY_ALWAYS = 0

Always visible.

VisibilityMode VISIBILITY_TOUCHSCREEN_ONLY = 1

Visible on touch screens only.


属性说明

String action = ""

The button's action. Actions can be handled with InputEventAction.


BitMap bitmask

The button's bitmask.


bool passby_press = false

  • void set_passby_press ( value: bool )
  • bool is_passby_press_enabled ( )

If true, the pressed and released signals are emitted whenever a pressed finger goes in and out of the button, even if the pressure started outside the active area of the button.

Note: This is a "pass-by" (not "bypass") press mode.


Shape2D shape

The button's shape.


bool shape_centered = true

  • void set_shape_centered ( value: bool )
  • bool is_shape_centered ( )

If true, the button's shape is centered in the provided texture. If no texture is used, this property has no effect.


bool shape_visible = true

  • void set_shape_visible ( value: bool )
  • bool is_shape_visible ( )

If true, the button's shape is visible in the editor.


Texture2D texture_normal

The button's texture for the normal state.


Texture2D texture_pressed

The button's texture for the pressed state.


VisibilityMode visibility_mode = 0

The button's visibility mode. See VisibilityMode for possible values.


方法说明

bool is_pressed ( ) const1

Returns true if this button is currently pressed.

2

本方法通常需要用户覆盖才能生效。

1

本方法无副作用,不会修改该实例的任何成员变量。

3

本方法除了能接受在此处描述的参数外,还能够继续接受任意数量的参数。

4

本方法用于构造某个类型。

5

调用本方法无需实例,可直接使用类名进行调用。

6

本方法描述的是使用本类型作为左操作数的有效运算符。

7

这个值是由下列位标志构成位掩码的整数。

8

无返回值。