Type Checker problem

[patent hinge]

Does anyone know why here vector1and2.Z is not a number

if vector1.Z + 2 == vector2.Z then return true end
if vector1.Z - 2 == vector2.Z then return true end

--!strict
-- @zyos73
-- 07/31/25

--Services
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

--Variables
local player : any = Players.LocalPlayer
local oldMoveVector : Vector3 = Vector3.new(0,0,0)

--Modules
local playerModule = require(player.PlayerScripts.PlayerModule)
local controls = playerModule:GetControls()

--Settings
local TURN_ANIMATION : Animation = Instance.new("Animation")
TURN_ANIMATION.AnimationId = "rbxassetid://YOUR_TURN_ID" -- set ur animation id

local DEBOUNCE = false 
local DEBOUNCE_TIME = .1 --set ur debounce time (0 if you want it removed)

function playTurnAnimation()
    if DEBOUNCE then return end
    DEBOUNCE = true
    print("play")
    
    --local humanoid = player.Character:WaitForChild("Humanoid")
    --local animator = humanoid:FindFirstChildOfClass("Animator")
    --local turnAnimationTrack = animator:LoadAnimation(TURN_ANIMATION)
    --turnAnimationTrack:Play()
    
    task.spawn(function()
        task.wait(DEBOUNCE_TIME)
        DEBOUNCE = false
    end)
end

function compareVectors(vector1 : Vector3, vector2 : Vector3) : boolean
    if (vector1.X == 0 and vector1.Z == 0) or (vector2.X == 0 and vector2.Z == 0) or (vector1.Y ~= 0) or (vector2.Y ~= 0) then return false end
    
    if vector1.X + 2 == vector2.X then return true end
    if vector1.X - 2 == vector2.X then return true end
    if vector1.Z + 2 == vector2.Z then return true end
    if vector1.Z - 2 == vector2.Z then return true end
end

RunService.Stepped:Connect(function()
    local newMoveVector : Vector3 = controls:GetMoveVector()

    if newMoveVector == Vector3.new(0,0,0) then return end
    if newMoveVector == oldMoveVector then return end
    if compareVectors(oldMoveVector, newMoveVector) then playTurnAnimation() end
    
    oldMoveVector = newMoveVector
end)

[patent hinge]

Issue:

[ember hawk]

I coded a lot in lua but starting luau so maybe i'm wrong but it looks like luau doesnt understand what type .X and .Y should be
You can try using local variables to store the numbers and compare those variables, it should force them to be numbers

Smth like this:

function compareVectors(vector1: Vector3, vector2: Vector3): boolean
    local x1, y1, z1 = vector1.X, vector1.Y, vector1.Z
    local x2, y2, z2 = vector2.X, vector2.Y, vector2.Z

    if (x1 == 0 and z1 == 0) or (x2 == 0 and z2 == 0) or (y1 ~= 0) or (y2 ~= 0) then
        return false
    end

    if x1 + 2 == x2 then return true end
    if x1 - 2 == x2 then return true end
    if z1 + 2 == z2 then return true end
    if z1 - 2 == z2 then return true end

    return false
end

[patent hinge]

mmm

thats smart

thanks

im gonna start to cry

Why is Type Checker so complicated

mb

all good

it works

without setting the type

[ember hawk]

you mean removing : Vector3 ?
I started studio to check in a new script and i dont have the error you get in your screen

But if it works its good x)

[patent hinge]

nah I forgot that this technicly means that these variables have to be all given a number

and then we have the same problem that type checker cant convert these into numbers

[ember hawk]

Wait so the game still can't check if x1 + 2 == x2 then return true end etc ? or i dont understand properly ?

[patent hinge]

no it works now but the problem was that If I set the variables to numbers instantly they need a number and somehow the things here arent numbers like we figured out

[ember hawk]

ahhh okay i get it now sry

[patent hinge]

all good thanks for the help