How do I limit the rotation of a object when looking at the mouse?

DMS

I've been trying to make some script for making the gun look to the mouse (It's in first person) for a couple of days now. I was able to get to it work fine until it starting rotating weirdly when I look at the ground, and it rotated all the way when I looked at the sky. So I tried using clamps to get to stop and it did helped a little bit but not a lot. I have no idea what other way to fix it and some help would be great (One way to help is how clamps works, I just tried putting random value to see if it would work)

Here's the snippet of code I've used

fire7side

check this page: https://godotengine.org/qa/37594/is-it-possible-to-limit-rotation-for-a-stationary-object

DMS

I'm probably doing something wrong though, when I play it the gun just goes over the rotation instead of staying there. Edit: When I meant it goes over the rotation, it just snapped to the other limit rotation

DMS

Here's what I put in:

fire7side

I think you need to also clamp your camera rotation. There is a description in this tutorial at about 9.00 minutes in.

DMS

I already clamp the camera, I just need to aim the gun independent of the camera. A free floating aiming system is what I am trying to do.

DMS

I'm going to do more tomorrow

DMS

Going to try to use quaternions the next day.

fire7side

Move it slow and watch your printout in the console. The key is finding out why the rotation turns opposite and jumps to the other limit. You should actually not even use the limits and just follow the numbers. You might have to run a smaller test window so you can read the console while it's running. If you know how those numbers are running, you will know how to clamp it or make an exception. PI/4 is about .75. The question is, where is the zero? What angle is the gun pointing at when it's a zero. If it's going to work, the gun should be exactly horizontal at zero. If it isn't, you have to adjust the numbers accordingly. Something illogical is happening or it wouldn't jump to the other limit.

DMS

Okay, going to try that out

DMS

What do you mean the zero being horizontal? Does it have to be at a certain angle to have zero, or the zero I have put in?

fire7side

Just see where you are at for now. You are printing z rotation in the console. Move the mouse up and down and see what number you get when the mouse is up high before it messes up and when the mouse is down low before it messes up, and see if the numbers just go up and down evenly. Also, watch what happens to the numbers when it messes up and see if it is doing something unusual. Is it turning suddenly from + to -? It must be following some type of logical pattern.

DMS

Well it works fine if I'm not aiming it to the sky or colliding with the ground (it can work without clamp as well) But will when it does aim to those places it ends up going upside in the sky and sometimes in the ground(maybe because it's colliding with it) Here's the values I'm getting for aiming normally: left: around 1.5 right: same but negative up: going somewhere in -3 down somewhere in -0.05

When I ended up at the sky the value for up was: - 0.05 in that range

DMS

I'mma put aside this problem away, I'll come back to this when I have more knowledge.

fire7side

I think it's the wrong rotation. I think the up and down is the .x. So try that first. Print out the .x rotation of the gun. Pretty sure that would be right. Yeah, maybe wait a while on it. I didn't even think about it. The z is the rotation pointing at the it going around . The y is right to left. That's why the numbers didn't make sense, I'm pretty sure.