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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/UWorld
Description
Asynchronously loads the given levels in preparation for a streaming map transition. This codepath is designed for worlds that heavily use level streaming and GameModes where the game state should be preserved through a transition.
| Name | PrepareMapChange |
| Type | function |
| Header File | /Engine/Source/Runtime/Engine/Classes/Engine/World.h |
| Include Path | #include "Engine/World.h" |
| Source | /Engine/Source/Runtime/Engine/Private/World.cpp |
void PrepareMapChange
(
const TArray < FName > & LevelNames
)
Parameters
| Name | Remarks |
|---|---|
| LevelNames | the names of the level packages to load. LevelNames[0] will be the new persistent (primary) level |