Go.set_rotation 4th arguement issues (SOLVED)

Questions
#1

So, I’m trying to make a sort of pickaxe, but it says I need a 4th argument. So, I just put in a 0. But, whenever I rotate the pickaxe with the 4th argument set, the screen just fills with the color of the handle. I tried setting a variable to the current rotation and using that as the 4th argument, but, still same thing. What is that 4th argument for, and what should I put there? Rotate code:

function on_input(self, action_id, action)
	if action_id == hash("click") then
		self.r = go.get_rotation()
		go.set_rotation(vmath.quat(0,0,-45,self.r.w))
		pick = true
		if action.released then
			go.set_rotation(vmath.quat(0,0,0,self.r.w))
			pick = false
		end
	end
end

Edit: I’ve been messing around, and I managed to make it not cover the screen, but now the pickaxe just dissappears. Can anyone give me any way to rotate this dang pickaxe?

#2

You’re mixing up quaternion and euler rotation. If you want to set the rotation in degrees, use the euler property like so:

-- "." means the current object
go.set(".", "euler", vmath.vector3(0, 0, -45))

Or, more simply:

go.set(".", "euler.z", -45)
2 Likes
#3

Thanks! That works perfectly! Good to know that I should use eulers, not quaternions

1 Like
#4

I think another takeaway is that euler rotation is different from quaternion rotation.
THey both have their pros and cons.