Coin Flipper

Introduction

Let’s create a coin flipping program to simulate a real coin toss. We’ll use icon images to represent a heads or tails result.

Step 1

Add an event to run code when ||input:button A pressed||. We’ll put our coin flipping code in here.

input.onButtonPressed(Button.A, () => {
})

Step 2

Inside the event for ||input:button A pressed||, put in code to check ||logic:if|| a ||math:random boolean|| value is true or false.

The ||math:random boolean|| value is used to determine a heads or tails result for a coin toss.

input.onButtonPressed(Button.A, () => {
    if (Math.randomBoolean()) {
    } else {
    }
})

Step 3

Now, ||basic:show an icon|| for a skull ||logic:if|| the ||math:random boolean|| value is true. This means heads. ||basic:show and icon|| of a square when false to mean tails.

input.onButtonPressed(Button.A, () => {
    if (Math.randomBoolean()) {
        basic.showIcon(IconNames.Skull)
    } else {
        basic.showIcon(IconNames.Square)
    }
})

Step 4

Press button A in the simulator to try the coin toss code.

Step 5

You can animate the coin toss to add the feeling of suspense. ||basic:show|| different icons before the check of the ||math:random boolean|| value to show that the coin is flipping.

input.onButtonPressed(Button.A, () => {
    basic.showIcon(IconNames.Diamond)
    basic.showIcon(IconNames.SmallDiamond)
    basic.showIcon(IconNames.Diamond)
    basic.showIcon(IconNames.SmallDiamond)
    if (Math.randomBoolean()) {
        basic.showIcon(IconNames.Skull)
    } else {
        basic.showIcon(IconNames.Square)
    }
})

Step 6

If you have a micro:bit, connect it to USB and click |Download| to transfer your code.

Step 7

Press button A for a flip. Test your luck and guess heads or tails before the toss is over!