[Help] attempt to perform arithmetic on global

[GERgta]

Hello forums once again.

I've tried to script some performance parts for cars and somehow the variable doesn't get set. I searched google and nothing helped me. Maybe YOU can spot the error?

function upgradeMotor ( playerSource ) 
    local theVehicle = getPedOccupiedVehicle ( playerSource ) 
    local seat = getPedOccupiedVehicleSeat ( playerSource ) 
    if seat == 0 then 
        if getElementData(theVehicle, "upgradeMotor") then 
            local motorUpgrade = getElementData(theVehicle, "upgradeMotor") 
        else 
            local motorUpgrade = 0 
        end 
         
        local buyingMotorUpgrade = motorUpgrade + 1  
         
        if buyingMotorUpgrade < 3 then 
            local price = buyingMotorUpgrade * 2000 
            local playerMoney = getPlayerMoney ( playerSource ) 
            if playerMoney > price then 
                setPlayerMoney ( playerSource, playerMoney - price ) 
                setElementData ( theVehicle, "upgradeMotor", buyingMotorUpgrade ) 
                outputChatBox ("Motor-Upgrade " ..buyingMotorUpgrade.. " buyed for " ..price.. "$!", playerSource) 
                outputChatBox ("You may need to re-enter your car to let the changes apply.", playerSource) 
            else 
                outputChatBox ("You dont have enough Money! The price is " ..price.. "$!", playerSource) 
            end 
        else 
            outputChatBox ("This car doesn't support more motor upgrades!", playerSource) 
        end 
    else 
        outputChatBox ("Only drivers can buy upgrades!", playerSource) 
    end 
end 
addCommandHandler ( "upgrademotor", upgradeMotor ) 

Console output:

server.lua:13: attempt to perform arithmetic on global 'motorUpgrade' (a nil value)

[Castillo]

That's because you have set the variable as local, that means it won't exist outside the 'if' statement.

[GERgta]

That's because you have set the variable as local, that means it won't exist outside the 'if' statement.

Thanks for that info, i'll see what I can do.

[Castillo]

All you have to do is remove 'local' from infront of it.

[GERgta]

All you have to do is remove 'local' from infront of it.

That's what I did: it works now

Wont there be conflicts if one than more player executes the command at the same time?

[Castillo]

I doubt it.