Solved Locations to the side of players direction

Right, so say I have a player facing north, how would I get the direction exactly 90 degree to left and right? E.g. Player is facing positive x, it then spawns a line of particles going on z and -z (left and right) I would also like to know how to make this work on any yaw angle, say 248 degrees.

Sorry if you didn't understand it, it is a bit hard to explain.

 

90 degrees of Positive X (East) is South.

player.getLocation().add(0, 0, 1);

Which gives you 1 block to the right of the player.

 

You missed the part about it working with any degree such as 258 or 173

 

I don't know how to do that, sorry.

 

Basic Vectors, even using the rule of the negative reciprocal for a line perpendicular. Vectors can be looked at like slopes. 90 degrees is easy, so lucky for you.

Code:

Vector v = p.getLocation().getDirection();
Vector v1 = v.clone().setX(-v.getZ()).setZ(v.getX());
Vector v2 = v.clone().setX(v.getZ()).setZ(-v.getX());
p.getWorld().spawnParticle(Particle.BARRIER, p.getLocation().add(v1.toLocation(p.getWorld())), 1);
p.getWorld().spawnParticle(Particle.BARRIER, p.getLocation().add(v2.toLocation(p.getWorld())), 1);

This puts them to either side of me. To get them X blocks away, I imagine you v1.multiply(X) and v2.multiply(X)

 

Thanks!

 

@TheEnderman
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