Hello, fellow Scratchers!

I'm new and I'm trying to wrap my head around a concept I read in a book about Scratch that I'm using as a reference. It says that a sprite's original orientation affects how it moves when you use the point in direction command.

For example, in the sprite gallery, the yellow chick sprite points to the right and the rocketship points up.

If you use point in direction 90 (90 degrees clockwise rotation) on both sprites, neither sprite will move or change direction. The rocketship won't rotate 90 degrees clockwise. Can someone explain why this is? It seems a bit counterintuitive.

Thanks in advance!

when you create a sprite, it defaults to 90 degrees, so thats why theres no change (probably)
If you create a sprite that looks like

D==

in the costume editor, itll look that same facing 90 degrees.
0 degrees faces up, 180 faces down, and (270) -90 degrees faces left

(I know someone already answered, but I'm going to try to clarify about the block's usage.)
The point in direction block does not add a certain number to the sprite's direction, it sets it to a certain direction.
In other words, point in direction 90 won't rotate it by 90 degrees, it will make the sprite “look” in the “90 degree direction” (which is right, and also the default.)
You can use the “turn __ degrees” blocks in order to make the rocket ship turn by 90 degrees.
Okay, I don't think that actually made sense, but I tried.