124 lines
2.7 KiB
Markdown
124 lines
2.7 KiB
Markdown
# digital pet challenges
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Coding challenges for the digital pet tutorial.
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## Before we get started
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Complete the following guided tutorial:
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* [tutorial](/lessons/digital-pet/tutorial)
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At the end of the tutorial, click `keep editing`. Your code should look like this:
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```
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basic.forever(() => {
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if (input.buttonIsPressed("A")) {
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setSleep()
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basic.pause(5000)
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} else {
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setAwake()
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}
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})
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```
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### Challenge 1
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Now let's feed the pet! Add an **ELSE IF** statement that checks if button `B` is pressed. Click on the **ELSE** and type **IF** next to it to get the **ELSE IF**.
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```
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basic.forever(() => {
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if (input.buttonIsPressed("A")) {
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setSleep()
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basic.pause(5000)
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} else if (input.buttonIsPressed("B")) {
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}
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else {
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setAwake()
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}
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})
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```
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### Challenge 2
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Now we want to show your eating pet! Let's create a function called `set eat` that will do create an image. Store that image in a variable and then show it.
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```
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export function setEat() {
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let img = 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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`)
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img.showImage(0)
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}
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```
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Once you create the function `set eat`, call it in the **ELSE IF** statement that checks if button `B` is pressed.
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```
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basic.forever(() => {
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if (input.buttonIsPressed("A")) {
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setSleep()
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basic.pause(5000)
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} else if (input.buttonIsPressed("B")) {
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setEat()
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}
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else {
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setAwake()
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}
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})
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```
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### Challenge 3
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Have your pet tell you when it is going to sleep! Do this inside of the **IF** statement that checks if button `A` is pressed before you call the function `set sleep`.
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```
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basic.forever(() => {
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if (input.buttonIsPressed("A")) {
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basic.showString("I am going to sleep.", 150) // ***
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setSleep()
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basic.pause(5000)
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} else if (input.buttonIsPressed("B")) {
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setEat()
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}
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else {
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setAwake()
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}
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})
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```
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### Challenge 4
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Now, how about we keep track of how many times our pet eats? Add a global variable called `feed` that keeps track of how many times you feed your pet. If button `B` is pressed, increment `feed` by one. Add a condition `on shake` to check your total.
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```
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feed = 0 // ***
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basic.forever(() => {
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if (input.buttonIsPressed("A")) {
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basic.showString("I am going to sleep.", 150)
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setSleep()
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basic.pause(5000)
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} else if (input.buttonIsPressed("B")) {
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feed = feed + 1 // ***
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setEat()
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}
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else {
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setAwake()
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}
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})
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input.onGesture(Gesture.Shake, () => {
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basic.showNumber(feed, 150) // ***
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}) // ***
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```
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### Challenge 5
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Program your pet to say that it is hungry after 60 seconds.
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**Hint**: use `input->running time`
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