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CreatiCode Scratch Forum

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  3. 二维积木
  4. 积木——“碰到颜色( )?”

积木——“碰到颜色( )?”

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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
    • 绘制造型

     

    介绍

    积木“碰到颜色( )?”是侦测类别的布尔积木。

    https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/f6203064-17ee-45e1-a08d-9f7652b66e3a.png" width="550" style="">
     

    这个积木怎么用?

    这个积木告诉我们本角色是否碰到某个颜色,“true”意思是“真”,就是碰到了,“false”意思是“假”,就是没碰到。

    点击积木上的调色板即可设置颜色,https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/260a96d0-3dd3-4139-8bab-808ecf1429f8.png" width="180" style=""> 然后左右滑动“色彩”滚动条即可选择颜色。
    https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/3ad4d870-4013-4f81-b36c-225213061104.png" width="200" style="">

    示例如下:
    https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/1cd0c9be-1d58-4b1f-8212-cec2b3a25cdd.gif" width="800" style="border-radius: 5px; border: 1px solid #29622d;">
     

    拾色器

    你还可以直接用“拾色器”工具选择颜色。color pick.PNG

    点击“拾色器”工具后,点击舞台上的任意地方即可使用这一点上的颜色。

    https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/39ebe5e4-ff2c-48c2-920a-969c6ed34da1.gif" width="800" style="border-radius: 5px; border: 1px solid #29622d;">
     

    示例——赛跑游戏

    可以用积木“碰到颜色( )?”制作一个赛跑游戏,如下所示。小狗会在路上一直奔跑,碰到红色的终点线就停下来。

    https://cdncreaticodecom.b-cdn.net/scratch-gui-projects/forum/a7418c0d-8faa-4e46-9f49-a536892e2941.gif" width="800" style="border-radius: 5px; border: 1px solid #29622d;">
     

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