local myTeamID = Spring.GetMyAllyTeamID()
function widget:GameFrame(frameNum)
    if frameNum%30==0 then --once in a second
    local allUnits = Spring.GetAllUnits()
    local ravens = {}
    local hacksaws = {}
        for i=1, #allUnits do
        local unitID = allUnits[i]
        unitDefID = Spring.GetUnitDefID(unitID)
            if unitDefID == 80 and (Spring.GetUnitAllyTeam(unitID)~=myTeamID) then
                table.insert(ravens,unitID)
            elseif unitDefID == 332 and (Spring.GetUnitAllyTeam(unitID)==myTeamID) then
                table.insert(hacksaws, unitID)
            end
        end
        for i=1, #ravens do
        local unitID1 = ravens[i]
        local x,y,z = Spring.GetUnitPosition(unitID1)
        --Spring.MarkerAddPoint(x,y,z, "enemy bomber")
        end
        for i=1, #hacksaws do
        local unitID2 = hacksaws[i]
        local x,y,z = Spring.GetUnitPosition(unitID2)
        --Spring.MarkerAddPoint(x,y,z, "my hacksaws")
        end
        for i=1, #ravens do
        --Spring.GiveOrderToUnit(hacksaws[i%#hacksaws + 1], CMD.INSERT,  {-1,CMD.ATTACK,CMD.OPT_SHIFT,ravens[i]}, {})
        Spring.SetUnitTarget(hacksaws[i%#hacksaws + 1], ravens[i])
        end
    end
end