Vectors can only be referred by x,y,z; not 1,2,3#2990

Received the following error: “attempt to call a number value near ‘for..in’”. After investigation, where vectors were assigned using getPosition(), getRotation() or getScale() and referred to using indices of 1,2,3, it would generate an error. Here’s an example:

tPos = oZone.getPosition()
if tPos[2] < 45  then ...

Above was fixed by making the following change:

tPos = oZone.getPosition()
if tPos.y < 45 then ...

See here for further details:
https://stackoverflow.com/questions/61722736/lua-attempt-to-call-a-number-value-near-for-in-error-due-to-unrelated-table-i

This code snippet (which I changed to x, y, z notation) works whereas using 1,2,3 notation caused the error (ie. for, then statement within a for, in loop; not sure if that matters):

function tc.spawnBanners() -- Spawn player banners based on hand-zone position, rotation & scale
    local nOffset = 0.75 -- Offset from hand zone position                    
    for gZone, vColor in pairs(tc.handGUIDs_Color()) do
        local oHandZone = Util.get(gZone)
        local tPos = oHandZone.getPosition()
        local tRot = oHandZone.getRotation()
        local tSca = oHandZone.getScale()
        if (tRot.y < 45) or (tRot.y > 320) or (tRot.y > 135 and tRot.y < 225) then
            if tPos.z > 0 then -- Top or bottom
                tPos.z = tPos.z - nOffset -- Top (z-axis)
                tRot.y = tRot.y - 180
            else
                tPos.z = tPos.z + nOffset -- Bottom (z-axis)
                tRot.y =  tRot.y + 180
            end
        else
            if tPos.x < 0 then -- Left or right
                tPos.x = tPos.x + nOffset -- Left (x-axis)
                tRot.y = tRot.y + 180
            else
                tPos.x = tPos.x - nOffset -- Right (x-axis)
                tRot.y = tRot.y - 180
            end
        end
        tSca.x = tSca.x / 6
        tSca.y = 1.00
        tSca.z = tSca.z / 2

        Util.spawn({
            Type = tBannerData_TC,
            Pos = tPos,
            Rot = tRot,
            Sca = tSca,
            Call = function(obj) obj.setColorTint(Util.toColor(vColor)) end
        })
    end
end

This also applies to color vectors (ex. tColor[4] would error but tColor.a would not). However, the color vector in the example below (fixed with .a notation) was just in a for, then statement so it doesn’t seem related to a for, in loop:

function tc.hideTable(bHideTable, bBroadcast) -- Hide/unhide table if indicated
    local tColor = oSurface_TC.getColorTint()
    for _, gTablePart in ipairs(tPartGUIDs_TC) do
        if gTablePart ~= oSurface_TC.guid then
            Util.get(gTablePart).attachInvisibleHider("hide", bHideTable)
        end
    end
    if bHideTable then
        tColor.a = 0
        oSurface_TC.setColorTint(tColor)
        if bBroadcast then broadcastToAll("Table hidden!", {0.2, 0.9, 0.2}) end
        if bBroadcast then broadcastToAll("Black (Game Master) can see & unhide table", "Black") end
    else
        tColor.a = 1
        oSurface_TC.setColorTint(tColor)
        if bBroadcast then broadcastToAll("Table unhidden!", {0.2, 0.9, 0.2}) end
    end
end