pxt-calliope/docs/reference/js/lessons/bop-it/challenges.md

bop it challenges

a game similar to "Simon Says" with the BBC micro:bit. #docs

Before we get started

Complete the following guided tutorial:

• tutorial

At the end of the tutorial, click keep editing. Your code should look like this:

newAction() // ***
input.onButtonPressed("A", () => {
    if (action == 0) {
        game.addScore(1) // ***
        newAction() // ***
    }
}) // ***
input.onLogoDown(() => {
    if (action == 1) {
        game.addScore(1) // ***
        newAction() // ***
    }
}) // ***
input.onGesture(Gesture.Shake, () => {
    if (action == 2) {
        game.addScore(1) // ***
        newAction() // ***
    }
}) // ***
input.onButtonPressed("B", () => {
    basic.showNumber(game.score(), 150) // ***
    basic.pause(2000) // ***
    newAction() // ***
}) // ***

Challenge 1

Now let's add some more types of instructions for the player to follow. Let's add PRESS PIN 0. Change the global variable action to math->random(4) so that we can add a new IF statement that checks if action=3. If it does, display instructions to press pin 0.

/**
 * {highlight}
 */
export function newAction_() {
    action = Math.random(4) // ***
    if (action == 0) {
        basic.showString("PUSH A", 150) // ***
    }
    if (action == 1) {
        basic.showString("LOGO DOWN", 150) // ***
    }
    if (action == 2) {
        basic.showString("SHAKE", 150) // ***
    }
    if (action == 3) {
        basic.showString("PRESS PIN 0", 150) // ***
    }
}

Challenge 2

Now let's implement PRESS PIN 0 in the main. Create a condition of input->on pin pressed("P0") that will add one to the score and calls the method new action.

// **. . .**
input.onButtonPressed("B", () => {
    basic.showNumber(game.score(), 150) // ***
    basic.pause(2000) // ***
    newAction() // ***
}) // ***
input.onPinPressed("P0", () => {
    if (action == 3) {
        game.addScore(1) // ***
        newAction() // ***
    }
}) // ***

Challenge 3

Add POINT ME NORTH to the list of possible commands.