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Michael Elliot Braun
2016-03-30 15:11:05 -07:00
parent f00491df52
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docs/lessons/spinner/challenges.md
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@ -6,21 +6,164 @@ Create an arrow that randomly points to a player.
Complete the following [guided tutorial](/microbit/lessons/spinner/activity), your code should look like this:
![](/static/mb/blocks/lessons/spinner-3.jpg)
```blocks
input.onGesture(Gesture.Shake, () => {
let randomArrow = Math.random(4)
if (randomArrow = 3) {
basic.showLeds(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`)
}
if (randomArrow = 2) {
basic.showLeds(`
. . # . .
. . # . .
# # # # #
. # # # .
. . # . .
`)
}
if (randomArrow = 1) {
basic.showLeds(`
. . # . .
. # # . .
# # # # #
. # # . .
. . # . .
`)
}
})
```
### Challenge 1
Modify the random number generator so that it can include new arrows we will create in the next challenge.
![](/static/mb/blocks/lessons/spinner-4.jpg)
```blocks
input.onGesture(Gesture.Shake, () => {
let randomArrow = Math.random(8)
if (randomArrow = 3) {
basic.showLeds(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`)
}
if (randomArrow = 2) {
basic.showLeds(`
. . # . .
. . # . .
# # # # #
. # # # .
. . # . .
`)
}
if (randomArrow = 1) {
basic.showLeds(`
. . # . .
. # # . .
# # # # #
. # # . .
. . # . .
`)
}
})
```
* Do **not** run the code yet because it will not work until you have conditions for every random number.
### Challenge 2
Let's add four more arrows that point diagonally.
Let's add more arrows that point diagonally.
```blocks
input.onGesture(Gesture.Shake, () => {
let randomArrow = Math.random(8)
if (randomArrow = 7) {
basic.showLeds(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`)
}
if (randomArrow = 6) {
basic.showLeds(`
. . # . .
. . # . .
# # # # #
. # # # .
. . # . .
`)
}
if (randomArrow = 5) {
basic.showLeds(`
. . # . .
. # # . .
# # # # #
. # # . .
. . # . .
`)
}
if (randomArrow = 4) {
basic.showLeds(`
. . # . .
. . . # .
# # # # #
. . . # .
. . # . .
`)
}
if (randomArrow = 3) {
basic.showLeds(`
# # # # #
# # # # .
# # # # .
# . . # .
. . . . #
`)
}
if (randomArrow = 2) {
basic.showLeds(`
# # # # #
# # # # #
. . # # #
. # . # #
# . . . #
`)
}
if (randomArrow = 1) {
basic.showLeds(`
# . . . #
# # . # .
# # # . .
# # # # .
# # # # #
`)
}
})
```
![](/static/mb/blocks/lessons/spinner-5.jpg)
* Run your code to see if it works as expected