Minecraft client turn head?

I'm still programming on a Minecraft client… Now I would like to ask if anyone of you knows in which class the games are facing. (From the rotationYawHead)

Would love to add emotes, but I just can't find this part.

Hope you can help me and thanks in advance!

Lg

Ps. Program the client in 1.8.8 (+ Optifine)

Just click on rotationYawHead, and then on "Declaration and Usages". There you will find everything you need.

Then I see where it is created, but not where it is used. (Assuming that happens when I click on it with CTRL + click)

Try it again anyway.

With Usages you normally see where it is used. Maybe that's different for you. What IDE do you use?