X-Plane 12: simulates the new wheel brake axis for legacy aircrafts

wheel_brakes_legacy.lua

-- Mirror right toe brake axis to left toe brake axis
-- For whitelisted aircraft only

local SCRIPT_NAME = "wheel_brakes_legacy"

-- Add supported .acf filenames here
local whitelisted_acf = {
    "A330.acf",
    -- "Some_Other_Aircraft.acf",
}

-- X-Plane brake datarefs
dataref("brake_l", "sim/flightmodel/controls/l_brake_add", "writable")
dataref("brake_r", "sim/flightmodel/controls/r_brake_add")

local enabled = false


------------------------------------------------------------
-- Aircraft whitelist
------------------------------------------------------------

local function is_whitelisted_aircraft()
    local current_acf = tostring(AIRCRAFT_FILENAME or "")

    for _, acf in ipairs(whitelisted_acf) do
        if current_acf == acf then
            return true
        end
    end

    return false
end


------------------------------------------------------------
-- Enable only for whitelisted aircraft
------------------------------------------------------------

if is_whitelisted_aircraft() then
    enabled = true
    logMsg(SCRIPT_NAME .. ": enabled for " .. tostring(AIRCRAFT_FILENAME))
else
    enabled = false
    logMsg(SCRIPT_NAME .. ": disabled for " .. tostring(AIRCRAFT_FILENAME))
end


------------------------------------------------------------
-- Brake mirroring
------------------------------------------------------------

function jp_wheel_brake_legacy()
    if not enabled then return end

    brake_l = brake_r
end

do_every_frame("jp_wheel_brake_legacy()")