What does the "Switch [Backdrop/costume] to [name] and wait" do?

Rhythmdvling

More specifically, what does the “wait” part do?

gor-dee

I believe it waits until any

when backdrop switches to [ v]

scripts have run

1492864

The Scratch Wiki wrote:
The switch backdrop to () and wait block is a Stack block and a Looks block. It functions similarly to the switch to backdrop () block, but this block waits for scripts under any when backdrop switches to () blocks to finish. This block is also similar to the broadcast () and wait block, because they both fire a user-driven event to start an action.

Source

goldenlion06

broadcast (message) and wait does:
a: broadcasts the message.
b: doesn't do code after that block in that script until the code in the broadcast is done

Scratch137

goldenlion06 wrote:
broadcast (message) and wait does:
a: broadcasts the message.
b: doesn't do code after that block in that script until the code in the broadcast is done

That's not what the OP is referring to; the block they're talking about is this one:

switch backdrop to [ v] and wait

Although similar in function, this block switches the backdrop and, as gor-dee said:

gor-dee wrote:
I believe it waits until any
when backdrop switches to [ v]
scripts have run

IXC

switch backdrop to [random v] and wait

Means that the block will switch to a background, but if a block like

when backdrop switches to [random v]

will be activated, the block will wait until all the scripts are finished. For example:

when green flag clicked
switch backdrop to [random v] and wait

when backdrop switches to [random v]
move (10) steps

The block will wait until the sprite has taken the 10 steps, so when the activated scripts are finished.

Last edited by IXC (March 25, 2021 05:45:52)

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