magic 8 activity

a fortune teller game on the BBC micro:bit #docs

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Welcome! This tutorial will help you create a magic 8 ball on the BBC micro:bit. Let's get started!

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Show a string to instruct the user how to play Magic 8! The magic 8 ball can only answer true or false questions.

basic.showString("Ask a question", 150)

Display the number 8.

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)

Run your program

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)
input.onGesture(Gesture.Shake, () => {
})

Create a variable of type number called x.

Set x equal to a random number with a limit of 3.

Remember the random function in the math library, picks a random number from 0 to the limit, but not including the limit unless it is 0.

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)
input.onGesture(Gesture.Shake, () => {
    let x = Math.random(3)
})

Create an if statement for the condition if x= 2.

If x is 2, display the string 'Yes'

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)
input.onGesture(Gesture.Shake, () => {
    let x1 = Math.random(3)
    if (x1 == 2) {
        basic.showString("Yes", 150)
    }
})

Create an if statement for the condition if x = 1.

If x is 1, display the string 'No'

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)
input.onGesture(Gesture.Shake, () => {
    let x2 = Math.random(3)
    if (x2 == 2) {
        basic.showString("Yes", 150)
    } else if (x2 == 1) {
        basic.showString("No", 150)
    }
})

If x is not 2 or 1, it must be 0. This is the else condition.

If x is 0, display the string 'I don't know'

Display the number 8 so users know they can ask the magic 8 ball another question!

basic.showString("Ask a question", 150)
basic.showNumber(8, 150)
input.onGesture(Gesture.Shake, () => {
    basic.clearScreen()
    let randomNumber = Math.random(3)
    if (randomNumber == 2) {
        basic.showString("Yes", 150)
    } else if (randomNumber == 1) {
        basic.showString("No", 150)
    }
    else {
        basic.showString("I don't know", 150)
    }
    basic.showNumber(8, 150)
})

Run your program

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Excellent, you're ready to continue with the challenges!

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magic 8 activity

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2.4 KiB

Raw Blame History