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Create an arrow that randomly points to a player.

Welcome! This guided tutorial will teach how to program a script that randomly points to a player. Let’s get started!

Let’s begin by adding an on shake condition to know when the micro:bit is shaken.

input.onGesture(Gesture.Shake, () => {

})

Now let’s randomly generate a number from 0 to 3 so that we can randomly display an arrow in a given direction.

input.onGesture(Gesture.Shake, () => {
    let randomArrow = randint(0, 4)
    if (randomArrow == 3) {
        basic.showLeds(`
            . . # . .
            . # # # .
            # # # # #
            . . # . .
            . . # . .
            `)
    }
})

Now let’s handle each of the cases by displaying the appropriate arrow. (Let’s display an up arrow if random arrow is 0.

input.onGesture(Gesture.Shake, () => {
    let randomArrow = randint(0, 4)
    if (randomArrow == 3) {
        basic.showLeds(`
            . . # . .
            . # # # .
            # # # # #
            . . # . .
            . . # . .
            `)
    }
    if (randomArrow == 2) {
        basic.showLeds(`
            . . # . .
            . . # . .
            # # # # #
            . # # # .
            . . # . .
            `)
    }
})

Now let’s handle the rest of the cases for random arrow.

input.onGesture(Gesture.Shake, () => {
    let randomArrow = randint(0, 4)
    if (randomArrow == 3) {
        basic.showLeds(`
            . . # . .
            . # # # .
            # # # # #
            . . # . .
            . . # . .
            `)
    }
    if (randomArrow == 2) {
        basic.showLeds(`
            . . # . .
            . . # . .
            # # # # #
            . # # # .
            . . # . .
            `)
    }
    if (randomArrow == 1) {
        basic.showLeds(`
            . . # . .
            . # # . .
            # # # # #
            . # # . .
            . . # . .
            `)

    }
})