Getting location relative to player's direction

How would I go around getting locations relative to player's current direction he is looking. I cannot use x and y values since they are not dependent on where the player is looking. I am trying to spawn armor stands over there.

I am trying to spawn armor stands at the red boxes:

Using location.clone().add(xOffset, yOffset, zOffset) would work over here, but how would I do it in a situation like this:

Over here the player isn't looking at a certain direction and it would be impossible to get the coordinates using offsets.


Another question, how would I get the block NW of the player specifically (hilighted in green):

 

You can use LivingEntity#getTargetBlock and from there figure out the direction relative to the players location.

 

@Kars
What exactly is getTargetBlock? If it's the croshair position, then I don't think that's too useful, in the examples the player was looking down, but that was just so I could get the top view of the blocks, in an actual scenario the player could be looking wherever.

How exactly would I do that?

 

getTargetBlock returns the block where the player is looking. Blocks have a location that you can compare with the players location. That way you can deduce the general direction in which the player is looking.

Edit:
Probably better to use Player#getLocation#getDirection

 

How would I do either of those options


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Read the documentation for getDirection or getYaw.