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>> SPEAKER 1: Let's refine my
implementation of cough

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a little bit more.

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So that rather than just cough a single
time, when using a cough block

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you can actually specify how many
times that sprite should cough.

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So this time I'm going to
click, make a block.

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I'm again going to call it cough.

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But this time I'm going to
expand these options.

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>> There, I can specify that this cough
block should take a number as input.

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By clicking this icon here.

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By default to that input otherwise known
as an argument, has a default

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name of number 1.

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But I'm going to simplify that to just
n, as is our commonly named variable

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for counting something.

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Which in this is coughs.

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>> Now, I'm going to go
ahead and click OK.

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And I have the beginnings again,
of a defined puzzle piece.

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Otherwise known as a function.

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Now, this function is going to allow me
to specify in code how many times

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Scratch should cough.

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So let's grab first that
repeats block.

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But rather than hard coat a number
like 10 or three, as

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we've done in the past.

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>> Let's grab this variable n and specify
that we should repeat a variable

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number of times.

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N, however many times the
user has specified.

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Now what do we want Scratch to
repeat some number of times?

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Well, I want Scratch to say
cough for one second.

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Then I'd like to give him
a moment's break.

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>> And now I need to actually call that
function in my actual program by

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telling Scratch to cough.

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So I'm going to drag my newly
made cough puzzle piece.

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And now rather than use the default of
1, I'm going to go ahead and specify

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three coughs.

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So now what's about to happen when I
click the green flag is my cough

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puzzle piece is going to get executed.

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>> That number 3 is going to be past in
to the cough function so to speak.

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And that's where the functions code is
going to take things from there.

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Repeating n times or three in this
case, saying cough for a second,

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waiting for a second, repeating,
repeating, and that's it.

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Let's click the green flag.

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Cough, cough, cough, and there you it.

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