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Welcome to the Hour of Code...

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Hi I'm Kathleen Kennedy and I'm the producer
of Star Wars: The Force Awakens. Today you'll

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be working with one of our stars, BB-8. BB-8
is a spherical droid. Everything he does and

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every movement that he makes is controlled
by computer software. Computer science impacts

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every industry, from marketing to health care
to film. In fact, hundreds of computer engineers

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worked together to make a film like The Force
Awakens.

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Hi, I'm Rachel Rose. I'm a senior R&D engineer
at ILM and I lead the animation and creature

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development team. In The Force Awakens, I'm
responsible for helping the artist develop

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rigs, which are the parts of the character
that move that allow the character to look

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very believable in a galaxy far, far away.
In the next hour, we're going to build our

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own Star Wars game that will teach you the
basic concepts of programming. Usually programming

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is all text but we're going to use blocks
here so we can drag and drop to write the

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programs. To start off, we're going to work
with Rey to program BB-8 to walk to collect

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all of the scrap parts.
Your screen is split into three parts. On

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the left is the Star Wars game space where
code will run. The instructions for each level

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are written below the game space. This middle
area is the toolbox and each of these blocks

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is a command that BB-8 can understand. The
white space on the right is called the work

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space and this is where we're going to build
our program.

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If I drag the moveLeft block to our workspace,
what happens? BB-8 moves left one block on

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the grid. And what if I want BB-8 to do something
after the move left block? I can add another

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block to our program. I'm going to choose
the moveUp block and I'll drag it under my

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moveLeft block until the highlight appears.
Then I'll drop it and the two blocks will

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snap together.
When I press run again, BB-8 will perform

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the commands that are stacked top to bottom
on our workspace. If you ever want to delete

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a block, just remove it from the stack and
drag it back into the toolbox. After you hit

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run, you can always hit the reset button to
get BB-8 back to the start. Now let's get rolling!