How do you detect radiator leak in Lua? (Help still needed)

Hello,

I’m developing a mod that plays a warning sound when the vehicle experiences a radiator leak.

I'm looking for a reliable way to detect radiator or coolant system damage in order to trigger an alert. Any suggestions or insights would be greatly appreciated.

This is the code I used:

Code:

local M = {}

local soundNode = 0
local leakAlertPlayed = false

local function onInit()
    -- Get a reference point in the vehicle to attach the sound to (like the first node)
    if v.data and v.data.refNodes and v.data.refNodes[0] then
        soundNode = v.data.refNodes[0].ref
    else
        log("E", "RadiatorLeakAlert", "No valid ref node found!")
    end

    -- Create a 3D sound source
    obj:createSFXSource2("/art/sound/Alarm.wav", "Audio2D", "radiatorLeakAlert", soundNode, 0)
end

local function onUpdate(dt)
    if not playerInfo.anyPlayerSeated then return end
 
    if not leakAlertPlayed and damageTracker.getDamage("engine", "radiatorLeak") then
        log("I", "RadiatorLeakAlert", "Radiator leak value: " .. tostring(damageTracker.getDamage("engine", "radiatorLeak")))
        obj:playSFXOnce("radiatorLeakAlert", soundNode, 1, 1)
        leakAlertPlayed = true
        log("I", "RadiatorLeakAlert", "Radiator leak detected! Sound alert triggered.")
    end
end

M.onInit = onInit
M.onUpdate = onUpdate

return M

I also made sure to put my code in: /lua/vehicle/extensions/auto/

The code won't even run.

Thank you.

 

damageTracker is a global provided for the vehicle environment only and does not need to be required.
You're using a game engine Lua script which does not have access to vehicle side globals.

Since you do not need a separate GE extension in this case, you can just move it into the vehicle. Those are stored here:
/lua/vehicle/extensions/ - available for all vehicles (put in /lua/vehicle/extensions/auto/ for automatic loading in all vehicles)
/vehicles/.../lua/ - available only for the vehicle the lua folder is inside of (always loads automatically).

In this case you'd want a script that loads for all vehicles, but only runs on the currently active one. playerInfo.anyPlayerSeated is a global you can use to check for that.
You will also need to change the API for sounds to the VLua one.

Code:

local soundNode = 0

This needs to only run once.

Code:

soundNode = v.data.refNodes[0].ref
obj:createSFXSource2("/art/sound/Alarm.wav", "Audio2D", "radiatorLeakAlert", soundNode, 0)

This then plays the sound.

Code:

obj:playSFXOnce("radiatorLeakAlert",  soundNode, 1, 1)

---

No. radiatorLeak is a valid flag and also the flag every other part of the UI uses for this purpose.

 

Thanks a lot! I tried it and it didn't work though . I think I misunderstood let me try again.