NullBehaviour = class(Behaviour)

function NullBehaviour:Init()
    --
end

function NullBehaviour:UnitFinished(unit)
    --
end

function NullBehaviour:UnitIdle(unit)
    --
end

function NullBehaviour:Update()
    --
end

function NullBehaviour:Activate()
    --
end

function NullBehaviour:Deactivate()
    --
end

function NullBehaviour:Priority()
    return 0
end

function NullBehaviour:UnitDead(unit)

end