Why can't I get my sprite to move?

Help with Snap! Snap! Editor
1

I cannot get the turtle to move, I used the code from Pacman (Snap! Build Your Own Blocks) to get the movement, however I cannot get the turtle to move when using arrow keys, he only changes directions. Anyone know what's wrong?
Snap! Build Your Own Blocks

3

It's because "Advance?" always returns false. Try altering the code inside it or any subblocks inside of it.

4

Thank you I was able to figure out why it was coming up false and now it works!