1.7 KiB
1.7 KiB
rotation animation quiz answers
Learn how to create a rotating image with a while loop. #image #loop #while #docs
This is the answer key for the rotation animation quiz.
1. What is a " variable"?
Answers may vary. A variable is a place where you can store data so that you can use it later in your code.
2. Write the code to create a ** variable** called foo
that stores a boolean and initialize it to false.
let rotating = true;
3. Explain what this line of code does.
let rotating = true;
while (rotating) {
basic.showLeds(`
. . . . .
. . . . .
. . # . .
. . . . .
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
`)
}
It is a while loop that will be executed only if the ** variable** called rotating
is true.
4. If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed. Explain why that particular area is shaded.
basic.showAnimation(`
# . . . . . . # . . . . . . # . . . . .
. # . . . . . # . . . . . # . . . . . .
. . # . . . . # . . . . # . . # # # # #
. . . # . . . # . . . # . . . . . . . .
. . . . # . . # . . # . . . . . . . . .
`, 400)
Show animation will show a series of image frames on the LED screen, pausing the specified time (400 milliseconds) after each frame