How do i make the player always have the same Z position

Help and Feedback Scripting Support
#1

I want the player always to have the same z position im making a 2d game. The player cant move in the z direction but sometimes they get pushed by other players so that their z gets to something else.

i want something like this kinda:

char.HumanoidRootPart.CFrame = CFrame.new(0,0,50)

tho that wont work i know since then the player always get teleported to 0,0 in x and y. I want those still to be the same

1 Like
#2

You could fill in the X and Y that they currently have.

Here’s an example:

local position = char.HumanoidRootPart.Position
char.HumanoidRootPart.CFrame = (char.HumanoidRootPart.CFrame - position) + Vector3.new(position.X, position.Y, 50)

This will keep their current rotation too.

2 Likes
#3

i have already tried that. It wont work well, the player moves very laggily. u cant even move that much u get tp:ed back.

So is there any other way to do it?

1 Like
#4

As this post shows you can technically disable the inputs using the ContextActionService.

local ContextActionService = game:GetService("ContextActionService")

ContextActionService:BindAction(
    "DisableZ",
    function() return Enum.ContextActionResult.Sink end, --this is "denying" the inputs
    false,
    Enum.PlayerActions.CharacterLeft, Enum.PlayerActions.CharacterRight --these are the inputs we wanna disable, going left and right, basically along the Z axis, here are all of the player inputs, here are all the inputs https://developer.roblox.com/en-us/api-reference/enum/PlayerActions
)
3 Likes
#5

I said earlier i have disabled those inputs. The problem is that the player will still sometimes get pushed by other players so that they get pushed on the z axis.

#6

Do you want the players to bump into each other, or is walking through each other an option?

  • If so, this should help you so that the characters do not bump each other and cause problems.

An option would be to have a general part (Usually the baseplate, or whatever the players are standing on since it is stationary so the Z position never moves) and use that part’s Z position to reposition players so that everyone has the same Z position. This also reduces the potential issue that the players’ Z position’s are not consistently in the desired position.

So instead of:

char.HumanoidRootPart.CFrame = CFrame.new(0,0,50)

You have:
char.HumanoidRootPart.CFrame = CFrame.new(char.HumanoidRootPart.CFrame.X, char.HumanoidRootPart.CFrame.Y, baseplate.CFrame.Z)

#7

the game is a 2d fighting game so that wont work

#8

One way you could make the player always have the same z position is to do something like this, this will always maintain the z position

local player = game.Players.LocalPlayer
local Root = player.Character.HumanoidRootPart
local lastZpos = Root.CFrame.Z
local RunService = game:GetService("RunService")

RunService.Heartbeat:Connect(function()
if lastZpos ~= Root.CFrame.Z then
		Root.CFrame = CFrame.new(Vector3.new(Root.Position.X, Root.Position.Y, lastZpos))      
		lastZpos =  Root.CFrame.Z
	end
end)
5 Likes
#9

Thanks so much. i have been trying to solve this the last 2 hours

#10

wait i just now realised 3 days later that that wont change the position on the server only the client. Which creates some problems.

#11

It should, when I tested it, it did. When I tested I put a local script in the startergui and everything worked

#12

oh i saw wrong it is not just the server that it wont work on. It seems like the script dont work? i remade it a little bit maybe i broke it

local lastZpos = Root.CFrame.Z
    RunService.Heartbeat:Connect(function()
    	if lastZpos ~= Root.CFrame.Z then
    		local LastOrientation = Root.Orientation
    		Root.CFrame = CFrame.new(Vector3.new(Root.Position.X, Root.Position.Y, lastZpos)) * CFrame.Angles(math.rad(LastOrientation.X),math.rad(LastOrientation.Y),math.rad(LastOrientation.Z))
    		lastZpos = Root.CFrame.Z
    	end
    end)
1 Like
#13

That’s odd, it works for me, where is your script in?

#14

startergui is it in and there is alot more going on above the “text” but it reaches all the way down to where this thing is. when i say text i mean the script i sent.

#15

I tested by printing when it changes and it changes the position but not just right. It sets it to like 49.634 or 51.734 for example

#16

Oh fixed it by changing lastpos to 50. Cause when the player gets teleported they might move sometimes making their z change to something else this is fixed by setting lastpos to 50 just all the time.

Now what should i mark as answer? this post or your post?

#17

Whichever one you find more helpful to others i guess, by the way you don’t have to include last orientation something like this works:

RunService.Heartbeat:Connect(function()
   	if lastZpos ~= Root.CFrame.Z then
   	Root.CFrame = CFrame.new(Vector3.new(Root.Position.X, Root.Position.Y, lastZpos)) * CFrame.Angles(0, math.rad(Root.Orientation.Y),0)     -- limits the z axis, but maintains the orientation of the HumanoidRootPart
   	lastZpos =  Root.CFrame.Z
   end
end)
3 Likes