Tutorial Pt. 3 "Groundwork" needs small clarification

[Prid13]

Part 3 - "Groundwork" of the Tutorial
Last steps, #6 and #7

While following the tutorial, I couldn't quite understand on step 7 if I was supposed to put the directional moving code in the if statement from step 6 or not.

I assumed at first that would be the case, but step 7 starts with "After that", so I thought the if statement would be saved for later and step 7 code should follow after the if statement. The correct code was to put step 7 code inside step 6 if statement (after seeing the source code).

Would love to see this clarified better for n00bs like me :)

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Also, the directional moving angle code could need some good explanation as it felt like a huge chunk of code that got little to no simple explanation to it. The drag code could also need a better explanation, unless this gets covered later on in the tutorial.