I m calling this on an `OnTriggerEvent`

[sour elk]

any thoughts?

[woeful fractal]

EDIT: nvm

Also I wouldn't compare Quaternion's individual components (x,y,z,w)

So I would use eulerAngles.y instead

[blazing spear]

usually i would use

 yield return null;

for waiting one frame

[woeful fractal]

true it works, I think the problem is here:
while (DoorToOpen.transform.rotation.y != targetRotation.y)

@sour elk are you sure you are calling it with StartCoroutine()?

[sour elk]

yeah StartCoroutine(OpenDoorOverTime(targetRotation));

loggin both the current and target rotation.y it doesn't count down, they are both 0 on the first iteration

[blazing spear]

 while (!Mathf.Approximately((DoorToOpen.transform.rotation.y, targetRotation.y)

[woeful fractal]

try replacing your while (DoorToOpen.transform.rotation.y != targetRotation.y)
while (Mathf.Abs(DoorToOpen.transform.eulerAngles.y - targetRotation.eulerAngles.y) > 0.001f)

@blazing spear yeah your way is cleaner. I would still use eulerAngles tho, just because i dont know how quaternion works (does Y even correspond to y axis?)

[sour elk]

still opens straight away.. and the logs still show 0 for both on the first iteration.

it's like the iteration isn't even happening!

[blazing spear]

the quaternion axis and euler axis are not the same so using eulerAngles is probably the better way

[sour elk]

oh

i think i'm an idiot

Quaternion targetRotation = DoorToOpen.transform.rotation *= Quaternion.Euler(0, -90, 0);

Would that be setting the transform?

[woeful fractal]

*= hmm

[sour elk]

I'm doing that to calculate the target rotation

[woeful fractal]

replace *= with *

oh wtf

replace *=with *

[sour elk]

oh man.

i've been writing code for about 15 years...

and i still suck at it 😄

thanks everyone.

[woeful fractal]

happens to the best of us.

[blazing spear]

glad you found the issue 🙂