122 lines
3.1 KiB
Markdown
122 lines
3.1 KiB
Markdown
# rock paper scissors activity
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A classic game against the micro:bit.
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### ~avatar avatar
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### @video td/videos/rock-paper-scissors-0
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Welcome! This tutorial will help you create a game of rock paper scissors with the micro:bit. Let's get started!
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### ~
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We want the micro:bit to choose rock, paper, or scissors when it is shaken. Let's begin by creating an on shake condition so the micro:bit will run code when it is shaken.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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})
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```
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Next, create a variable and store pick random number from 0 to 2. On shake, a number will be randomly picked from 0-2. We will randomly display an image based on the random number returned.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let img = Math.random(3)
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})
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```
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The micro:bit will look like it's showing 1 frame of the image by displaying the whole image when pick random is equal to 2. We can help the micro:bit randomly decide which image to use by pick random. The micro:bit will randomly pick the image to display with show LEDs and the pick random function.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let img = Math.random(3)
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if (img == 2) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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}
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})
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```
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The micro:bit will look like it's showing 1 frame of the image by displaying the whole image when pick random is equal to 1. We can help the micro:bit randomly decide which image to use by pick random. The micro:bit will randomly pick the image to display with show LEDs and the pick random function.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let img = Math.random(3)
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if (img == 2) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (img == 1) {
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basic.showLeds(`
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. . . . .
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. # # # .
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. # # # .
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. # # # .
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. . . . .
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`)
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}
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})
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```
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The micro:bit will look like it's showing 1 frame of the image by displaying the whole image when pick random is not equal to 2 and not equal to 1. We can help the micro:bit randomly decide which image to use by pick random. The micro:bit will randomly pick the image to display with show LEDs and the pick random function.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let img = Math.random(3)
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if (img == 2) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (img == 1) {
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basic.showLeds(`
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. . . . .
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. # # # .
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. # # # .
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. # # # .
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. . . . .
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`)
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} else {
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basic.showLeds(`
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. . . # #
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# # . # .
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. . # . .
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# # . # .
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. . . # #
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`)
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}
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})
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```
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### ~avatar avatar
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Excellent, you're ready to continue with the [challenges](/lessons/rock-paper-scissors/challenges)!
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### ~
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