剪刀、石頭、布

步驟1：製作

這是什麼?

用兩個micro:bit玩這個經典的遊戲，並同時學習selection，variables 和random numbers。

這兩支影片為您示範了製作內容和編碼方法：

運作方式

• 剪刀、石頭、布是一個適合兩人玩的經典遊戲。 You and a partner shake your fists 3 times and then make gestures at random to show a rock, paper or scissors. Rock beats scissors, scissors beat paper and paper beats rock (it wraps the rock!).
• When the micro:bit accelerometer detects a shake movement, it sets the variable tool to a random number: 0, 1 or 2.
• We use 0 because computers start counting at 0, and it’s good to remember that 0 is a number!
• The program uses selection to decide what image to show on the LED display. If the random number was 0, it shows a rock icon, if it was 1 it shows the icon representing paper. If it wasn’t 0 or 1, it must be 2 because we instructed the micro:bit to only pick random numbers between 0 and 2, so in that case it shows scissors.

你需要的東西

• 2 個micro:bit（或MakeCode模擬器）
• MakeCode 或, Python 編輯器
• 電池組（選配）
• a partner to play with

步驟2：編碼

步驟3：進階

• Draw your own icons for rock, paper, scissors.
• Think of other tools that could replace rock, paper and scissors or invent new rules.
• Use the micro:bit radio function to make a game that knows if you won or lost by communicating with your friend’s micro:bit.