How can I add a constrictor on this zoom mechanic?

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#1

I want to make sure the part doesnt go past 3.9 on the zed axis how can I add an if statement checking for this??
I just get an error with this code.

local function inspect_Zoom(check)
	if check then
		--print("Wheel went backwards!")
		if targetsModelVariable:GetPrimaryPartCFrame() >= Vector3.new(0, 0, 3.9) then
			print("TooFarForward")
		else
			targetsModelVariable:SetPrimaryPartCFrame(targetsModelVariable:GetPrimaryPartCFrame() + Vector3.new(0,0,0.3))
		end
	else
		--print("Wheel went forward!")
		if targetsModelVariable:GetPrimaryPartCFrame() >= Vector3.new(0, 0, -3.9) then
			print("TooFarBack")
		else
			targetsModelVariable:SetPrimaryPartCFrame(targetsModelVariable:GetPrimaryPartCFrame() - Vector3.new(0,0,0.3))
		end
	end
end
#2

What are you trying to do? I’m confused by your question.

What is this targetsModelVariable? How is it moving in the first place?

#3

It is a model that im just moving on the zed axis forward or back depending on the players scroll wheel I want to make sure it doesnt go over (0, 0, 3.9) or under (0,0,-3.9)

#4

You can’t compare a CFrame with a Vector (or even a Vector with a Vector for that matter!). It’s like saying “is this cat less than this cat”.

Check just the Z component of the CFrame instead.

#5

How could I do this? Sorry for my lack of knowledge I am just learning more about math operations as well as CFrame operations in roblox.

#6

It’s okay!

You know what a Vector3 is?

A CFrame is like a Vector3, but it includes rotation information as well as position.

That doesn’t really matter for you though, because you just care about the position anyways.

CFrames have an X, Y, and Z property just like Vector3s, and they mean the same thing.

So you can do:

if targetsModelVariable:GetPrimaryPartCFrame().Z >= 3.9 then

Notice the .Z part. Now you just have numbers on both sides of the >= and the world makes sense again.

#7

I know most of the before part I didnt know you can axis a specific axis just by using .Z though thanks for this feedback ill try it.

#8

One more thing: your first one should probably be a <, instead of >=.

#9

Yep haha just changed that right now thanks!