84 lines
1.7 KiB
Markdown
84 lines
1.7 KiB
Markdown
# flipping bird challenges
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These challenges will allow you to create and display a flipping image of a bird when the micro:bit is shaken. #docs
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### Challenge 0
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### @video vimeo/134449611
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Greetings! This [guided tutorial](/lessons/flipping-bird/tutorial) will begin to show you how to flip a bird.
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```
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counter = 0
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input.onGesture(Gesture.Shake, () => {
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counter = counter + 1
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if (math.mod(counter, 2) == 1) {
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images.createImage(`
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# # . # #
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. . # . .
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. . . . .
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. . . . .
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. . . . .
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`).showImage(0)
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}
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})
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```
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### Challenge 1
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We handled the case of when `math->mod(counter,2) = 1`. We haven't done anything when the remainder is 0! Add an if statement to handle this case.
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```
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counter = 0
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input.onGesture(Gesture.Shake, () => {
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counter = counter + 1
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if (math.mod(counter, 2) == 1) {
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images.createImage(`
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# # . # #
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. . # . .
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. . . . .
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. . . . .
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. . . . .
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`).showImage(0)
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}
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if (math.mod(counter, 2) == 0) {
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}
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})
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```
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### Challenge 2
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Inside of that `if` statement you created in challenge 1, add `image->create image()->show image(0)` and display an upside down flying bird.
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```
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counter = 0
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input.onGesture(Gesture.Shake, () => {
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counter = counter + 1
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if (math.mod(counter, 2) == 1) {
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images.createImage(`
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# # . # #
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. . # . .
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. . . . .
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. . . . .
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. . . . .
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`).showImage(0)
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}
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if (math.mod(counter, 2) == 0) {
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images.createImage(`
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. . . . .
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. . . . .
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. . . . .
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. . # . .
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# # . # #
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`).showImage(0) // ***
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}
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})
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```
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* Run the code to see if it works as expected.
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### Challenge 3
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Display a check mark and question mark instead of flipping birds. Or better yet, come up with your own pair of opposites to display!
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