-- 27.09.17/AH  A2A Cessna C172 Fuel Script
-- Parm 1/2: Fuel Selector right->left and left->right
-- Parm 3/4: Fuel Selector von rechts nach links drehen
--
--
-- Parm 1/2 : Fuel Selector right->left = 2 -> 1 -> 0 / left->right = 0 -> 1 -> 2
-- Parm 3/4 : Fuel Valve in/out
-- Parm 5/6 : Fuel Pump on/off
--
if (ipcPARAM == 1) then
  FUELSEL = ipc.readLvar("L:FSelC172State")
  if (FUELSEL > 0) then
    FUELSEL = FUELSEL - 1
    ipc.writeLvar("L:FSelC172State", FUELSEL)
  end
elseif (ipcPARAM == 2) then
  FUELSEL = ipc.readLvar("L:FSelC172State")
  if (FUELSEL < 2) then
    FUELSEL = FUELSEL + 1
    ipc.writeLvar("L:FSelC172State", FUELSEL)
  end
--
-- Parm 3/4 : Fuel Valve in/out
--
elseif (ipcPARAM == 3) then
  ipc.writeLvar("L:Eng1_FuelCutOffSwitch", 1) -- Fuel Valve in = on
elseif (ipcPARAM == 4) then
  ipc.writeLvar("L:Eng1_FuelCutOffSwitch", 0) -- Fuel Valve out = off
--
-- Parm 5/6 : Fuel Pump on/off
--
elseif (ipcPARAM == 5) then
  ipc.writeUB(0x3104,1)	-- Offset 0x3104 (1 Byte) on 1 activates first Fuel Pump
elseif (ipcPARAM == 6) then
  ipc.writeUB(0x3104,0)	-- Offset 0x3104 (1 Byte) on 0 stops first Fuel Pump
else
  ipc.log("Parameter " .. ipcPARAM .. " unhandled")
end

-- Former code for fuel valve toggle
--  VALVE = ipc.readLvar("L:Eng1_FuelCutOffSwitch")
--  if (VALVE == 0) then
--    ipc.writeLvar("L:Eng1_FuelCutOffSwitch", 1)
--  else
--      ipc.writeLvar("L:Eng1_FuelCutOffSwitch", 0)
--  end