title Hányó fejjel tisztítás

participant SnowPlow
participant SplittingHead
participant RoadSection 1
participant RoadSection 2

[-> SnowPlow: 
activate SnowPlow
SnowPlow->SplittingHead: doCleaning(Map, RoadSection 1, SnowPlow)
activate SplittingHead

SplittingHead->RoadSection 1: getRandomAdjecentRoadSection()
activate RoadSection 1
RoadSection 1-->SplittingHead: RoadSection 2
deactivate RoadSection 1

alt Zúzalék van a földön
    SplittingHead->RoadSection 2: transferGravelTo(from: RoadSection 1)
    activate RoadSection 2
    RoadSection 2-->SplittingHead: 
    deactivate RoadSection 2
else
    SplittingHead->RoadSection 2: transferSnowTo(from: RoadSection 1)
    activate RoadSection 2
    RoadSection 2-->SplittingHead: 
    deactivate RoadSection 2
end

SplittingHead-->SnowPlow: 
deactivate SplittingHead

[<-- SnowPlow: 
deactivate SnowPlow