Rotation Nonsense!

Unity Engine
1

This is absolutely driving me to despair…

working on a top down 2d game.(Think Harbor3d on the appstore or that air traffic control game)

I’m trying to get a 2d plane to rotate around its y axis so that it can face and then move towards a series of waypoints.
this rotation has to be a ‘constant’ ie not SLOW DOWN towards the end of the rotation.
I’ve tried hinge joints, I’ve tried all manner of scripts but the best I can get is this lerp/slerp slow down effect.
I’ve been on this days now and even had a kind gent (assumption) on in the irc chatroom knock up a c# script but even that slows down visibily.

Surely it isn’t too hard (kinda stupid saying that as it’s obviously too hard for me!)

Please please please if anyone has solved this please help.

2

any ideas ppl,
this is really a bug bear

3

i don’t know if i get this right, but what’s wrong with simply using transform.Rotate()?

4

To get smooth rotation, you need to mark the time at the start and then lerp the rotation based on the elapsed time. This is often elegantly accomplished with a coroutine:-

function RotateSmoothly(startRot: Quaternion, endRot: Quaternion, rotTime: float) {
	var startTime = Time.time;
	
	while (Time.time <= startTime + rotTime) {
		var t = (Time.time - startTime) / rotTime;
		transform.rotation = Quaternion.Slerp(startRot, endRot, t);
		yield;
	}
}