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[Welcome to the Hour of Code...]

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(Star Wars musical theme)

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Hi! I'm Kathleen Kennedy and I'm the
producer of Star Wars The Force Awakens.

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Today you'll be working with one of our
stars, BB-8: BB-8 is a spherical droid,

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Everything he does and every movement he
makes is controlled by computer software.

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Computer science impacts every industry
from marketing to healthcare to film.

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In fact, hundreds of computer engineers 
work together

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to make a film like "The Force Awakens."

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Hi, I'm Rachel Rose, 
I'm the senior R&D engineer at ILM

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and I lead the animation and creature 
development team.

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In The Force Awakens I'm responsible
for helping me artist develop rigs

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which are the parts of the character 
that move,

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that allow the character to look very
believable in a galaxy far far away.

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In the next hour we're gonna build our own
Star Wars game

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that will teach you the basic concepts
of programming.

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Usually programming is all text 
but we're going to use blocks here

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so that we can drag and drop to
rate the programs (check)

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Under the hood 
you're still creating code.

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After you try the basics with blocks,
we'll switch you to JavaScript,

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one the most popular programming languages
on the web.

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To start off, we're going to work with Ray
to program BB-8 to walk

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to collect all of the scrap parts.

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Your screen is split into three parts:

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on the left is a Star Wars game space
where code will run.

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The instructions for each level 
are written below the game space.

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This middle area is the
tool box and each of these boxes

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is a command that BB-8 can understand.

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The white space on the right 
is called the workspace

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

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if I drag the "Move left" block to our 
workspace and press run, what happens ?

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BB-8 moves left one block on the grid.

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And what if I want BB-8 to do something 
after the "move left" block?

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I can add another block to our program.

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I'm going to choose 
the "move up" block

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and I'll drag it underneath 
my "move left" block

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until the highlight appears 
and then I'll drop it

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and the two blocks will snap together.

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When i press "run again"

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BB-8 will ... (check) the commands 
that are stacked

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from top to bottom on our workspace.

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if you ever want to delete a block, 
just remove it from the stack

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and drag it back into the tool box.

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After you've hit "Run", you can always 
hit the reset button to get back to start.

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Now let's get rolling