handler help creating a shift drift script.

[weverton gabriel]

Can anyone help me make a system that changes the handler of the current car when I press shift? The goal is to create a drift shift system. But I'm a layman and I don't know where to start.

[FLUSHBICEPS]

local default = {}
local drift = {
    -- ur drift handling properties
}

function applydrift()
    local veh = getPedOccupiedVehicle(localPlayer)
    if veh and getVehicleController(veh) == localPlayer then
        sethandling(veh, drift)
    end
end

function revertdefault()
    local veh = getPedOccupiedVehicle(localPlayer)
    if veh and getVehicleController(veh) == localPlayer then
        local model = getElementModel(veh)
        sethandling(veh, default[model])
    end
end

function sethandling(veh, handlingData)
    for prop, val in pairs(handlingData) do
        setVehicleHandling(veh, prop, val)
    end
end

function onEnter(_, seat)
    if source and seat == 0 then
        local vehModel = getElementModel(source)
        if not default[vehModel] then
            default[vehModel] = getVehicleHandling(source)
        end
    end
end
addEventHandler("onClientPlayerVehicleEnter", localPlayer, onEnter)

bindKey("lshift", "down", applydrift)
bindKey("lshift", "up", revertdefault)

so basically it’s drifting with shift by holding it, u need to change the drift handling properties 

local drift = {
    ["mass"] = 1400,
    ["turnMass"] = 4000,
    ["dragCoeff"] = 2.2,
    ["tractionMultiplier"] = 0.65,
    ["tractionLoss"] = 0.85,
    ["tractionBias"] = 0.52,
    ["brakeDeceleration"] = 8.17,
    ["brakeBias"] = 0.52,
    ["suspensionForceLevel"] = 1.2,
    ["suspensionDamping"] = 0.08,
    ["suspensionHighSpeedDamping"] = 0.0,
    ["suspensionUpperLimit"] = 0.28,
    ["suspensionLowerLimit"] = -0.16,
    ["suspensionFrontRearBias"] = 0.45,
    ["suspensionAntidiveMultiplier"] = 0.0,
    ["steeringLock"] = 40.0
}

Didn’t try but they might do the job but still ya need to adjust them

[P[ow]er]

Here is an example of how you could achieve this:

1. Detecting the shift key press:

2. function onClientKey ( button, press )
       if ( button == "lshift" and press ) then
           -- Change the car handling
       end
   end
   addEventHandler ( "onClientKey", root, onClientKey )

    

3. Changing the car handling:

4. function changeHandling ()
       local handlingTable = getVehicleHandling ( getPedOccupiedVehicle ( localPlayer ) )
       -- Modify the handling table to make the car more suitable for drifting
       setVehicleHandling ( getPedOccupiedVehicle ( localPlayer ), handlingTable )
   end

   You would need to modify the changeHandling function to adjust the handling table to make the car more suitable for drifting. You could increase the car's rear-wheel grip, reduce its weight, or increase its acceleration, for example.

   You can find more information on MTA scripting in the official MTA wiki: https://wiki.multitheftauto.com/

[weverton gabriel]

On 07/04/2023 at 03:01, FLUSHBICEPS said:

local default = {}
local drift = {
    -- ur drift handling properties
}

function applydrift()
    local veh = getPedOccupiedVehicle(localPlayer)
    if veh and getVehicleController(veh) == localPlayer then
        sethandling(veh, drift)
    end
end

function revertdefault()
    local veh = getPedOccupiedVehicle(localPlayer)
    if veh and getVehicleController(veh) == localPlayer then
        local model = getElementModel(veh)
        sethandling(veh, default[model])
    end
end

function sethandling(veh, handlingData)
    for prop, val in pairs(handlingData) do
        setVehicleHandling(veh, prop, val)
    end
end

function onEnter(_, seat)
    if source and seat == 0 then
        local vehModel = getElementModel(source)
        if not default[vehModel] then
            default[vehModel] = getVehicleHandling(source)
        end
    end
end
addEventHandler("onClientPlayerVehicleEnter", localPlayer, onEnter)

bindKey("lshift", "down", applydrift)
bindKey("lshift", "up", revertdefault)

so basically it’s drifting with shift by holding it, u need to change the drift handling properties 

local drift = {
    ["mass"] = 1400,
    ["turnMass"] = 4000,
    ["dragCoeff"] = 2.2,
    ["tractionMultiplier"] = 0.65,
    ["tractionLoss"] = 0.85,
    ["tractionBias"] = 0.52,
    ["brakeDeceleration"] = 8.17,
    ["brakeBias"] = 0.52,
    ["suspensionForceLevel"] = 1.2,
    ["suspensionDamping"] = 0.08,
    ["suspensionHighSpeedDamping"] = 0.0,
    ["suspensionUpperLimit"] = 0.28,
    ["suspensionLowerLimit"] = -0.16,
    ["suspensionFrontRearBias"] = 0.45,
    ["suspensionAntidiveMultiplier"] = 0.0,
    ["steeringLock"] = 40.0
}

Não tentou, mas eles podem fazer o trabalho, mas ainda assim você precisa ajustá-los

Como eu disse, sou muito novo no assunto, então recebi um erro que diz que em "default[model]" o argumento é nulo, você sabe o que poderia ser?

[weverton gabriel]

6 hours ago, weverton gabriel said:

Como eu disse, sou muito novo no assunto, então recebi um erro que diz que em "default[model]" o argumento é nulo, você sabe o que poderia ser?

I ended up managing to resolve the issue of nil but still the code does not return anything.

[FLUSHBICEPS]

You can use the isPlayerActuallyInVehicle useful function to check if a player is fully inside a vehicle, onEnter function is being called before the vehicle is fully loaded