131 lines
2.3 KiB
Markdown
131 lines
2.3 KiB
Markdown
# die roll activity
|
|
|
|
Create a die on the BBC micro:bit
|
|
|
|
To create a new script, go to the [Create Code](/microbit/create-code) page and tap *New Project* under **KindScript**.
|
|
|
|
Let's create a condition for when the BBC micro:bit is shaken.
|
|
|
|
```
|
|
input.onGesture(Gesture.Shake, () => {
|
|
})
|
|
```
|
|
|
|
We need to show a random value from 1 to 6 on our die. So let's make a local variable called **roll**.
|
|
|
|
```
|
|
input.onGesture(Gesture.Shake, () => {
|
|
let roll = Math.random(6)
|
|
})
|
|
```
|
|
|
|
We need a condition for if **roll** is 5. We will show a `6` if **roll** is 5 because **roll** has a range from 0 to 5. We can use `Show LEDs` to display the side of a die that shows 6.
|
|
|
|
```
|
|
input.onGesture(Gesture.Shake, () => {
|
|
let roll1 = Math.random(6)
|
|
if (roll1 == 5) {
|
|
basic.showLeds(`
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
`, 400)
|
|
}
|
|
})
|
|
```
|
|
|
|
Let's use an `else if` condition for if **roll** is 4. If **roll** is 4 we can show 5 dots on the die.
|
|
|
|
```
|
|
input.onGesture(Gesture.Shake, () => {
|
|
let roll2 = Math.random(6)
|
|
if (roll2 == 5) {
|
|
basic.showLeds(`
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
`, 400)
|
|
} else if (roll2 == 4) {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . # . .
|
|
. # . # .
|
|
. . . . .
|
|
`, 400)
|
|
}
|
|
})
|
|
```
|
|
|
|
Now we need to repeat the same steps for if **roll** is 3. If **roll** is 3 we will show `4` on the die. Let's also repeat these steps to show the 3, 2, and 1 on the die. We are almost done with our die!
|
|
|
|
```
|
|
input.onGesture(Gesture.Shake, () => {
|
|
let roll3 = Math.random(6)
|
|
if (roll3 == 5) {
|
|
basic.showLeds(`
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
`, 400)
|
|
} else if (roll3 == 4) {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . # . .
|
|
. # . # .
|
|
. . . . .
|
|
`, 400)
|
|
}
|
|
else if (roll3 == 3) {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
`, 400)
|
|
}
|
|
else if (roll3 == 2) {
|
|
basic.showLeds(`
|
|
# . . . .
|
|
. . . . .
|
|
. . # . .
|
|
. . . . .
|
|
. . . . #
|
|
`, 400)
|
|
}
|
|
else if (roll3 == 1) {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . . .
|
|
. . . . .
|
|
. . . # .
|
|
. . . . .
|
|
`, 400)
|
|
}
|
|
else {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. . . . .
|
|
. . # . .
|
|
. . . . .
|
|
. . . . .
|
|
`, 400)
|
|
}
|
|
})
|
|
```
|
|
|
|
### ~avatar avatar
|
|
|
|
Excellent, you're ready to continue with the [challenges](/microbit/lessons/die-roll/challenges)!
|
|
|
|
### ~
|
|
|