“初始化俯视角工程，带puerts，未编过”

Plugins/Puerts/Source/JsEnv/Public/SourceFileWatcher.h

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+/*
+ * Tencent is pleased to support the open source community by making Puerts available.
+ * Copyright (C) 2020 THL A29 Limited, a Tencent company.  All rights reserved.
+ * Puerts is licensed under the BSD 3-Clause License, except for the third-party components listed in the file 'LICENSE' which may
+ * be subject to their corresponding license terms. This file is subject to the terms and conditions defined in file 'LICENSE',
+ * which is part of this source code package.
+ */
+
+#pragma once
+#if WITH_EDITOR
+#include "CoreMinimal.h"
+#include "IDirectoryWatcher.h"
+#include "Misc/SecureHash.h"
+#include <functional>
+#include "PuertsNamespaceDef.h"
+
+namespace PUERTS_NAMESPACE
+{
+class JSENV_API FSourceFileWatcher
+{
+public:
+    FSourceFileWatcher(std::function<void(const FString&)> InOnWatchedFileChanged);
+
+    ~FSourceFileWatcher();
+
+    void OnSourceLoaded(const FString& InPath);
+
+    void OnDirectoryChanged(const TArray<FFileChangeData>& FileChanges);
+
+private:
+    TMap<FString, FDelegateHandle> WatchedDirs;
+
+    TMap<FString, TMap<FString, FMD5Hash>> WatchedFiles;
+
+    FCriticalSection SourceFileWatcherCritical;
+
+    std::function<void(const FString&)> OnWatchedFileChanged;
+};
+}    // namespace PUERTS_NAMESPACE
+#endif