| 159 | } // namespace |
| 160 | |
| 161 | bool CreateLevelSync(const FString& NameOrPath, bool bForceOverwrite, |
| 162 | FString& OutLevelPath, FString& OutError) |
| 163 | { |
| 164 | ULevelEditorSubsystem* Sub = GetLevelSub(); |
| 165 | if (!Sub) |
| 166 | { |
| 167 | OutError = TEXT("LevelEditorSubsystem unavailable"); |
| 168 | return false; |
| 169 | } |
| 170 | |
| 171 | OutLevelPath = ResolveLevelPath(NameOrPath); |
| 172 | |
| 173 | if (bForceOverwrite) |
| 174 | { |
| 175 | const FString AssetName = FPaths::GetBaseFilename(OutLevelPath); |
| 176 | const FString ObjectPath = FString::Printf(TEXT("%s.%s"), *OutLevelPath, *AssetName); |
| 177 | bool bWasFound = false; |
| 178 | FString DestroyErr; |
| 179 | if (!DestroyAssetSync(ObjectPath, bWasFound, DestroyErr)) |
| 180 | { |
| 181 | OutError = FString::Printf( |
| 182 | TEXT("force_overwrite failed to clear %s: %s"), |
| 183 | *ObjectPath, *DestroyErr); |
| 184 | return false; |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | if (!Sub->NewLevel(OutLevelPath)) |
| 189 | { |
| 190 | OutError = FString::Printf( |
| 191 | TEXT("NewLevel failed for %s (already exists?)"), *OutLevelPath); |
| 192 | return false; |
| 193 | } |
| 194 | |
| 195 | // Override the world's default game mode to AGameModeBase so PIE |
| 196 | // doesn't pull in the project-default game mode (and its transitive |
| 197 | // BP references). Without this, projects with broken third-party |
| 198 | // content -- e.g. Marketplace Mannequin AnimBPs that fail to |
| 199 | // compile -- pop a "Blueprint Compilation Errors" modal during |
| 200 | // PIE start, which blocks the game thread and times out begin_pie |
| 201 | // at 30s. AGameModeBase is the minimal default and has no BP refs. |
| 202 | if (UWorld* World = GEditor ? GEditor->GetEditorWorldContext().World() : nullptr) |
| 203 | { |
| 204 | if (AWorldSettings* WS = World->GetWorldSettings()) |
| 205 | { |
| 206 | WS->DefaultGameMode = AGameModeBase::StaticClass(); |
| 207 | WS->MarkPackageDirty(); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | if (!Sub->SaveCurrentLevel()) |
| 212 | { |
| 213 | OutError = TEXT("NewLevel succeeded but SaveCurrentLevel failed"); |
| 214 | return false; |
| 215 | } |
| 216 | return true; |
| 217 | } |
| 218 | |