PlantUML Web Server

@startuml
participant "LoadingScene" as LS
participant "assetbundleMgr" as BM
participant "UI_ResourceDownload" as UI
participant "BundleFileLoader" as FL
participant "FileDownloader" as FDL

LS->LS: Start()
LS->LS: EventStart()
LS->LS: TitleSpineStart()
LS->LS: start_BundleDownload()

LS->BM: 
note right
assetbundleMgr의 인스턴스는 있지만
init()는 호출하기 前
end note

BM->BM: start_AssetBundle_Downloading()
activate BM

BM->BM: 어셋번들 정보 다운로드 받기\nCRT_download_AssetBundleInfo()

BM->BM: init()
activate BM
note left
BundleFileLoader를 만드는 역할
잘못된 함수 이름 사용
end note
BM->FL:
FL->FL: Initialize()
note left
아래 3개 이벤트 함수를 설정
FileDownloader.OnDownloadComplete
FileDownloader.OnDownloadProgressChanged
FileDownloader.OnDownloadError
end note
FL->BM:
deactivate BM

BM->BM: CheckAssetUpdate()

BM->BM: real_start_of_download()

BM->UI:
UI->UI: StartDownload()

loop 번들 개수 만큼
UI->UI: DownloadAsset()
UI->BM: DownloadAssetBundle()
BM->FL: DownloadAssetBundle()

create FDL
FL->FDL:

FL<-FDL: OnDownloadProgressChanged()
FL->UI: 진행상황표시\nonProgressCallback()

FL<-FDL: OnDownloadError()
FL->UI: 에러나면 메시지 띄우고 종료\nonErrorCallback()

FL<-FDL: OnDownloadComplete()
FL->UI: onSuccessCallback()\n성공하면 아래 과정 실행
UI->UI: onSuccessCallback()에서\n다운로드 완료 체크
UI->UI: 다운로드 미완료면\nDownloadAsset() 호출
end

UI->BM: 다운로드 완료
BM->BM: onDownloadCompleted()
BM->LS:
deactivate BM

LS->LS: onComplete_AssetBundleDownload()
@enduml

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