pxt-calliope/docs/reference/js/lessons/on-logo-up-and-down/challenges.md

68 lines
984 B
Markdown
Raw Normal View History

2016-03-26 00:47:20 +01:00
# on logo up and down challenges
My script. #docs
**Challenge 0**
2016-04-13 17:27:45 +02:00
This [guided tutorial](/zysycw) will help you display an arrow pointing the direction the logo is orientated!
2016-03-26 00:47:20 +01:00
Let's display and upward pointing arrow when the logo is up!
```
input.onLogoUp(() => {
images.createImage(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`).showImage(0)
})
```
**Challenge 1**
How about when the logo is down? We should display the arrow pointing downward!
Let's start by adding a condition for if the logo is down.
```
input.onLogoUp(() => {
images.createImage(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`).showImage(0)
})
input.onLogoDown(() => {
})
```
**Challenge 2**
Now we need to display the arrow!
```
input.onLogoUp(() => {
images.createImage(`
. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`).showImage(0)
})
input.onLogoDown(() => {
images.createImage(`
. . # . .
. . # . .
# # # # #
. # # # .
. . # . .
`).showImage(0) // ***
})
```