Calculating direction between vectors

[pspeed]

I went over how to do this without angles here:

How can I calculate the rotation value of a model to look at a position?

If you can only turn left or right to get there… then the target is either “turn to the left” or “turn to the right”. How would you calculate that with a y angle? With a couple of dot products it’s simple. Given: Spatial target, Spatial player… we want to figure out if player should turn left or right: // Find the direction we want Vector3f relativeDir = target.getWorldTranslation().subtract(player.getWorldTranslation()).normalizeLocal(); // Find the direction we're looking and the left ve…

Basic steering stuff including how fast to steer left or right. It won’t have a problem crossing 0 it won’t have a problem crossing 180… it won’t have a problem with any of the other half-dozen issues with using angles.