2016-03-26 00:47:20 +01:00
# spinner lesson
a spin the BBC micro:bit game with the input on shake #button #pressed #math #random #var #string #if #docs
### @video td/videos/spinner-0
## Topic
If (Conditionals)
## Quick Links
* [activity ](/microbit/lessons/spinner/activity )
* [challenges ](/microbit/lessons/spinner/challenges )
## Prior learning/place of lesson in scheme of work
Learn how to use an if statement to run code run code depending on whether a condition is true or not. We will be learning how to create a die with If statements, On Shake, Variables, Assignment Operator, Pick Random and Show LEDs.
## Documentation
2016-03-30 01:17:34 +02:00
```docs
if (true) {
}
let x = 0
input.onGesture(Gesture.Shake, () => {
})
Math.random(3)
basic.showLeds(`
. . . . .
. . . . .
. . # . .
. . . . .
. . . . .
`)
```
2016-03-26 00:47:20 +01:00
## Objectives
* learn how to run code when the BBC micro:bit is shaken, when running code in the web browser, moving the mouse quickly simulates shaking
* learn how to create a local variable as a place where you can store and retrieve data
* learn how the assignment operator is used to declare a new local variable
* learn how to declare a new local variable or update the value of a variable
* learn how to return a random number
* learn how to conditionally run code depending on whether a condition is true or not
* learn how to show an image on the LED screen
