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CreatiCode Scratch Forum

  1. CreatiCode Forum
  2. 知识库
  3. 二维积木
  4. 积木——“当碰到( )时”

积木——“当碰到( )时”

Scheduled Pinned Locked Moved 二维积木
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  • C Offline
    C Offline
    creaticodeteacher2-mail
    wrote on last edited by admin
    #1

     

    先修科目

    • 组装积木

     

    介绍

    积木“当碰到( )时”属于事件类别的帽子积木。


     

    这个积木怎么用?

    当角色碰到另一个对象,比如“鼠标”、“舞台边缘”或者其他角色,该积木就会运行它下面连接的积木。

    点击下拉菜单即可从3个选项中选择其中之一。
     

    当碰到(鼠标)

    如果你选择“鼠标”%E4%BD%9C%E4%B8%BA%E7%9B%AE%E6%A0%87%E5%AF%B9%E8%B1%A1%EF%BC%8C%E9%82%A3%E4%B9%88%EF%BC%8C%E6%AF%8F%E5%BD%93**%E9%BC%A0%E6%A0%87**%E7%A2%B0%E5%88%B0%E6%9C%AC%E8%A7%92%E8%89%B2%EF%BC%8C%E8%AF%A5%E7%A7%AF%E6%9C%A8%E5%B0%B1%E4%BC%9A%E8%BF%90%E8%A1%8C%E5%AE%83%E4%B8%8B%E9%9D%A2%E8%BF%9E%E6%8E%A5%E7%9A%84%E7%A7%AF%E6%9C%A8%E3%80%82" target="_blank" rel="noopener noreferrer nofollow ugc">https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/7506f4db-bcd8-487d-afb3-1494e9ab5df2.png作为目标对象,那么,每当**鼠标**碰到本角色,该积木就会运行它下面连接的积木。

    在如下示例中,每当鼠标碰到水母,水母就会说“你好!”。


     

    当碰到(舞台边缘)

    如果你选择“舞台边缘”作为目标对象,那么,每当本角色碰到舞台的4个边缘,该积木下面的积木就会运行。

    在如下示例中,每当水母碰到舞台边缘(以红色突出显示),它就会更换造型。


     

    当碰到(角色)

    如果你选择其他角色作为目标对象,那么,每当本角色碰到选取的目标角色,下面的积木就会运行。

    在如下示例中,每当水母(本角色)碰到鱼(选取的目标角色),水母就变大。

    注意:项目中至少要有2个角色,你才能在下拉列表中选取其他角色。


     

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