PROCEDURES IN SCRATCH Message Broadcasting and Receiving

Agenda Holiday chat Debug it assignment Message broadcasting and receiving

Message Broadcasting and Receiving

Broadcasting Any sprite can broadcast a message using the broadcast or broadcast and wait blocks This triggers all scripts in all sprites (including the broadcaster) that begin with a matching when I receive block All sprites hear the broadcast but they only act on it if they have a corresponding when I receive block

Create the following scripts…. Pencil Sprite: Stage:

Let’s try a more complex example.. Go on to Moodle and go to 9. Procedures - Message Broadcasting and Receiving Download Flowers_nocode.sb2 and upload it to Scratch (do not try to open it) Once you’ve got it open, wait for instructions

Create the following code for each sprite: Note: Change this value for each sprite. Remember, you can drag and drop the script into each sprite to duplicate it.

Now it’s your turn to experiment: You now have a base program to manipulate. Use the remaining class time to experiment and make your own designs/programs that use the broadcast and receive blocks. Note: If you have not handed in your Debug it assignment, use the time remaining to work on it.