How to make the player face a certain direction with /setworldspawn

Question

I've created an SMP, and I would like players to spawn facing West. Unfortunately, the world spawn causes new players to first spawn facing South.

Can this be changed with the /setworldspawn command?

Answer 1

Yes, in fact, the Minecraft Wiki says that /setworldspawn has an option for facing direction as a yaw angle parameter.

It also states which numbers correspond to which directions: −180 for north, −90 for east, 0 for south, and 90 for west.

So to change the world spawn facing angle to west, just specify 90 in the /setworldspawn command.