FTD Stagger Fire For Turrets

-- Stagger Fire Turret Controller
-- Use Local Weapon Controllers as usual for targeting, but set their Max_Firerate to 0

-- SET THESE FOR USE
turret_ID = 1       -- 1 for first turret placed, 2 for second, etc...
interval = 0.250    -- in seconds; use multiples of 0.025s since 1 physics frame = 0.025s
mainframe_index = 0 -- 0 for first mainframe placed, 1 for second, etc...

-- DON'T CHANGE ANYTHING BELOW UNLESS YOU KNOW WHAT YOU ARE DOING
-- initialize global variables
next_weapon = 0
weapon_count = 0
last_fired_time = 0

function Update(I)
  if (I:GetAIFiringMode(mainframe_index) == 'On') then
    weapon_count = I:GetWeaponCountOnSubConstruct(turret_ID)
    if (I:GetNumberOfTargets(mainframe_index) > 0) then
      if (I:GetGameTime() - last_fired_time >= interval) then
        if (I:FireWeaponOnSubConstruct(turret_ID,next_weapon,0)) then
          last_fired_time = I:GetGameTime()
          next_weapon = (next_weapon + 1) % weapon_count
        end
      end
    end
  end
end