Assigning Values to a specific Vector3 axis

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1

I’ve looks on documentation and have been experimenting around for hours but I can’t seem to find how to assign onto a specific Vector3 axis.
e.g

local function plshelp(axis)
    local VecValue = Vector3.new(1,2,3)
    VecValue[axis] = 3
end

plshelp("Y")

it’s says a value cannot be assigned to it , I’m trying to make it so that you input an axis.

pls help me

2

  1. What is axis

  2. What is the Instance you are trying to get or assign?

3

For example

local vec = Vector3.new(1,2,3) -- 1= X axis, 2= Y axis and 3 = Z axis

print(vec.Z) -- this will return 3

I’m trying to change the value so for example

vec.Z = 10

but that errors

4

Vector3s are immutable. In other words, they don’t change. In order to set a specific axis value, you have to create a whole new Vector3. Don’t worry, Roblox is very optimized for this.

local vec = Vector3.new(1, 2, 3)
-- Change Z to 10:
vec = Vector3.new(vec.X, vec.Y, 10)
1 Like
5

Pretty much, yeah thats how that works