Operation Manual

A beginner’s guide to Scratch
41
Notes:
Now we need our sprites. Import “lights” and “barrier” from the
RPiScratch/Resources/Costumes folder.
Traffic-light box
Barrier support
Look at the image above, and you’ll see that the “lights” sprite has four different
costumes. By switching costumes quickly, we can make it look as if the lights
are flashing.
The last thing we need to do before we start building our script is to import the
sound of the level-crossing alarm. To do this, click the Sounds tab, find the sound
“level_crossing_a” and then use the import function, just as you did with
the background.