Trackmania Hold Action Keys

#Requires AutoHotkey v2.0
#SingleInstance

SetKeyDelay 0, 0
A_HotkeyInterval := 0
SetKeyDelay -1, 0
SendMode "event"
CoordMode "tooltip", "screen"

keyNames := ["1", "2", "3", "4", "5"]  ; action key binds
keys := [0,0,0,0,0]
lastKeys := [0,0,0,0,0]
inputs := [0,0,0,0,0]
curAk := 0
newAk := 0

loop keyNames.length {
  Hotkey "*" keyNames[A_index], nop
}
nop(thishotkey) {
  return
}

SetTimer(updateKeys, 1)
#SuspendExempt 1
!X::ExitApp
!R::Reload
!P:: {
  Suspend
  Pause
}

updateKeys() {
  global

  getInputs
  updateAk
}

getInputs() {
  global

  loop keyNames.length {
    i := A_index
    lastKeys[i] := keys[i]
    state := GetKeyState(keyNames[i], "P")
    keys[i] := state
    inputs[i] := state
    if keys[i] && !lastKeys[i]
      inputs[i] := 2
    else if !keys[i] && lastKeys[i]
      inputs[i] := -1
  }
}

updateAk() {
  global

  loop inputs.length {
    if inputs[A_index] == 2
      newAk := A_index
  }
  loop inputs.length {
    if inputs[A_index] == -1 && curAk == A_index {
      curAk := 0
      loop inputs.length {
        if inputs[A_index] > 0
          newAk := A_index
      }
      if newAk == 0
        send keyNames[5]
    }
  }
  if newAk > 0 {
    send keyNames[newAk]
    curAk := newAk
    newAk := 0
  }
}