110 lines
2.6 KiB
Markdown
110 lines
2.6 KiB
Markdown
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# magic 8 challenges
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Coding challenges for the magic 8 tutorial #docs
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## Before we get started
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Complete the following guided tutorial:
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* [tutorial](/microbit/lessons/magic-8-ball/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.showString("Ask a question", 150)
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basic.showNumber(8, 150)
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input.onGesture(Gesture.Shake, () => {
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basic.clearScreen()
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let randomNumber = Math.random(3)
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if (randomNumber == 2) {
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basic.showString("Yes", 150)
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} else if (randomNumber == 1) {
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basic.showString("No", 150)
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}
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else {
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basic.showString("I don't know", 150)
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}
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basic.showNumber(8, 150)
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})
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```
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**Challenge 1**
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Now let's increase the number of responses the magic 8 ball can give. How about 5 responses instead? Let's change the limit of `math->random` to 5.
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```
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basic.showString("Ask a question", 150)
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basic.showNumber(8, 150)
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input.onGesture(Gesture.Shake, () => {
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basic.clearScreen()
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let randomNumber1 = Math.random(5) // ***
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if (randomNumber1 == 2) {
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basic.showString("Yes", 150)
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} else if (randomNumber1 == 1) {
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basic.showString("No", 150)
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}
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else {
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basic.showString("I don't know", 150)
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}
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basic.showNumber(8, 150)
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})
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```
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**Challenge 2**
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Now have the magic 8 ball respond "Try again" if **randomNumber** is 3.
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```
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basic.showString("Ask a question", 150)
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basic.showNumber(8, 150)
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input.onGesture(Gesture.Shake, () => {
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basic.clearScreen()
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let randomNumber2 = Math.random(5)
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if (randomNumber2 == 3) {
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basic.showString("Try again", 150) // ***
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} else if (randomNumber2 == 2) {
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basic.showString("Yes", 150)
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}
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else if (randomNumber2 == 1) {
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basic.showString("No", 150)
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}
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else {
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basic.showString("I don't know", 150)
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}
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basic.showNumber(8, 150)
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})
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```
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**Challenge 3**
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Now what about if **randomNumber** is 4? Let's have the magic 8 ball respond "Definitely!".
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```
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basic.showString("Ask a question", 150)
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basic.showNumber(8, 150)
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input.onGesture(Gesture.Shake, () => {
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basic.clearScreen()
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let randomNumber3 = Math.random(5)
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if (randomNumber3 == 4) {
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basic.showString("Definitely!", 150) // ***
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} else if (randomNumber3 == 3) {
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basic.showString("Try again", 150)
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}
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else if (randomNumber3 == 2) {
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basic.showString("Yes", 150)
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}
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else if (randomNumber3 == 1) {
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basic.showString("No", 150)
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}
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else {
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basic.showString("I don't know", 150)
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}
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basic.showNumber(8, 150)
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})
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```
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**Challenge 4**
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Add 3 more responses so your magic 8 ball has 8 possible responses. Be creative!
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