94 lines
1.5 KiB
Markdown
94 lines
1.5 KiB
Markdown
# smiley blocks challenges
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Coding challenges for the smiley.
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## Before we get started
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Complete the [smiley activity](/lessons/smiley/activity) and your code will look like this:
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```blocks
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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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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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## Challenge 1
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What if we want to make the face to frown on button pressed A?
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Let's make add code that will run when button A is pressed!
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```blocks
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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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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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input.onButtonPressed(Button.A, () => {
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})
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```
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## Challenge 2
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Now, we want to show a frowny face when this button is pressed. Let's show the LEDs.
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```blocks
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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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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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input.onButtonPressed(Button.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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`)
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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 `on button pressed` *B*. Next, show LEDs as a smiley face inside the condition.
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