Locking NPC/Player to the Z axis?

Help and Feedback Scripting Support
#1

So I’ve been using this code for a while to lock players and npcs to the Z axis

--Lock the Z axis by updating it to be the same as the MiddlePoint Z axis
if HRP.CFrame.Z ~= MiddlePoint.CFrame.Z then
	CFrame.new(HRP.CFrame.X, HRP.CFrame.Y, MiddlePoint.CFrame.Z)
end	

--Face opponent 
local FacingDirection = math.floor(Opponent.Character.HumanoidRootPart.CFrame.X - HRP.CFrame.X)
FacingDirection = math.sign(math.sign(FacingDirection) + 0.5) 
CurrentFacingDirection = FacingDirection

local NewPos = HRP.Position+Vector3.new(FacingDirection,0,0)
HRP.CFrame = CFrame.new(HRP.Position,NewPos)

And I know it probably isn’t the best solution, but it works pretty well

However today I’ve realized that it causes issues when trying to do knockback as you can see from the video below it causes this weird teleporting thing to happen

Here’s how It looks without the code enabled

So I wanted to know how I could still keep the player/npc locked on the Z axis and have them face the opponent without interfering when trying to do knockback

1 Like
#2

I’ve used AlignOrientation | Roblox Creator Documentation in the past on NPCs. It provides a really simple interface for controlling what they’re looking at. In your case it would also automatically handle the facing direction for you in the scenario that the two characters switched sides (of course you would still need an animation for each side).

I would add an attachment in each character’s root part and add the AlignOrientation into the the NPC’s root part. Set AlignType to Parallel, PrimaryAxisOnly to true, RigidityEnabled to true and Mode to TwoAttachment and set the Attachment0 to the NPC’s attachment in its root part and the Attachment1 to the attachment in the player’s root part attachment.

#3

I’m a bit confused how to set this up lol do I make an align orientation for both characters?

#4

You can, what I was suggesting was specifically for the NPC but it would work fine in both. AlignOrientation attempts to line up two Attachments, so you only need one AlignOrientation and Two attachments for the NPC. If you add an AlignOrientation to the player character then you just do the opposite with the Attachment0 and Attachment1.

#5

I’m gonna assume this is incorrect? lol

	local Att1 = Instance.new("Attachment")
	Att1.Parent = Player1.Character.HumanoidRootPart
	local Att2 = Instance.new("Attachment")
	Att2.Parent = Player2.Character.HumanoidRootPart
	local AO = Instance.new("AlignOrientation")
	AO.AlignType = Enum.AlignType.Parallel
	AO.PrimaryAxisOnly = true
	AO.RigidityEnabled = true
	AO.Attachment0 = Att1
	AO.Attachment1 = Att2
	AO.Parent = Player2.Character.HumanoidRootPart
#6

That looks fine to me. Is there an issue with it?

#7

(Sorry for the bump)
If anyone is here reading this, you can do it like this: