68 lines
1.3 KiB
Markdown
68 lines
1.3 KiB
Markdown
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# smiley challenges
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Coding challenges for the smiley tutorial. #docs
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## Before we get started
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Complete the [smiley activity](/microbit/lessons/smiley/activity) and your code will look like this:
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```
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basic.showAnimation(`
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. # . # . . . . . .
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. # . # . . . . . .
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. . . . . . . . . .
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# . . . # . . . . .
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. # # # . . . . . .
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`, 400)
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```
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### Challenge 1
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What if we want to make the face to frown when button `A` is pressed?
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Let's make add code that will run when button `A` is pressed!
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```
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basic.showAnimation(`
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. # . # . . . . . .
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. # . # . . . . . .
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. . . . . . . . . .
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# . . . # . . . . .
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. # # # . . . . . .
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`, 400)
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input.onButtonPressed("A", () => {
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}) // ***
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```
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### Challenge 2
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### @video td/videos/smiley-2
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Now, we want to show a frowny face when this button is pressed. Let's plot that image.
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```
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basic.showAnimation(`
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. # . # . . . . . .
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. # . # . . . . . .
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. . . . . . . . . .
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# . . . # . . . . .
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. # # # . . . . . .
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`, 400)
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input.onButtonPressed("A", () => {
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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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`, 400) // ***
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})
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```
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* Run your code to see if it works as expected.
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### Challenge 3
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When button `B` is pressed, let's change the sad face back to a happy face. To do this, begin by adding a condition for `input->on button pressed(B)`. Then show a smiley face inside the condition.
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