Attempt to perform arithmetic on a userdata value error

[3mpty]

		local rocketangles = self:GetAngles()
		local newrocketangles = relativevector:Angle()
		self:SetAngles((rocketangles+newrocketangles)/2)	<-- Line 22

This code gives me error spam:

entities/gstruction_hrocket/init.lua:22: attempt to perform arithmetic on a userdata value

I have no idea what the error is telling me and I have no idea why I can't touch my angles :(

[MakeR]

You can't perform a division on an Angle object.

local ang = rocketangles+newrocketangles
local newang = Angle(ang.p/2, ang.y/2, ang.r/2)

[editline]11:33AM[/editline]

You could also edit the Angle metatable to allow for division.
Something like this:

function _R.Angle.__div(a)
	if type(a) == "number" then
		return Angle(self.p/a, self.y/a, self.r/a)
	end
end

[3mpty]

Well it's no longer giving me errors, but my idea was broken from the start.

Do you have any idea for how I could limit how much the rockets angle changes every frame?

Rather than having a rocket that can turn on a dime I'd prefer one that turns slowly.
Any ideas?

[MakeR]

[url=http://wiki.garrysmod.com/?title=PhysObj.ComputeShadowControl]ComputeShadowControl[/url] could be just the thing you are looking for, although it may also be nothing to do with it.

[3mpty]

Yeah this is confusing as hell.

And now my entity doesn't explode, it bounces off walls. Perhaps not.

[editline]09:37PM[/editline]

I looked at the drunken_rocket script by tetabonita and looked how he did it.
It seems to be working now. And after I got the basic slowed angle change down I developed my own wobble, since I don't like to copypaste code.