function createBacteries( count )
    local bacteria = {}
    bacteria.count = count
    bacteria.speed = 10
    bacteria.bacteriesInGroup = 10

    -- public functions
    function bacteria:sendArmy(persent, sourceColony, destColony)
        local groups = math.ceil((bacteria.count * persent / 100) / bacteria.bacteriesInGroup)
        local army = math.ceil(bacteria.count * persent / 100)
        bacteria.count = bacteria.count - army

        local distance = math.sqrt(math.pow((sourceColony.x - destColony.x),2) + math.pow((sourceColony.y - destColony.y),2))
...
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