(Redirected from Broadcast () and Wait)
|Broadcast () and Wait|
broadcast [message1 v] and wait
The Broadcast () and Wait block is an Event block and a Stack block. The block sends a broadcast throughout the whole Scratch project. Any scripts that start with the When I Receive () block and are set to the matching broadcast will activate. This broadcast waits until all scripts activated by the broadcast end and stop running. Broadcasts are a good way to have sprites and scripts communicate.
If a script must be activated without a user prompt and after the project has started, there is only one way: broadcasts. Some common uses:
- Talk show animations
When I receive [Sprite1 Talk v] say [Hi, Gobo!] for (2) secs broadcast [Sprite2 Talk v] and wait say [Let's talk about food.] for (2) secs
- Ordinary animations
glide (1) secs to x: (-148) y: (80) play sound [meow v] broadcast [move v] and wait
- Waiting for an online data decoding before starting
when gf clicked broadcast [decodeCloudData v] and wait ask [enter your password to resume your progress!] and wait set [i v] to  repeat until <(item (i) of [users v]) = (username)> change [i v] by (1) end decrypt password ::custom if <(answer) = (properPassword)> then broadcast [playGame v] else broadcast [cannotPlay v] end
- Mesh projects
set [chat v] to  broadcast [P2 chat v] and wait
- Main article: Recursion
Broadcast blocks can also, in a way, induce recursion. Recursion happens when a block (or broadcast script in this article) calls on itself at some point in the code. It can be used to create fractals, create a forever loop, etc.