BinaryFileIO : Real-time Save/Load

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A replacement for BinaryFormatter to read and write the public fields and properties of class objects/scripts using BinaryReader and BinaryWriter.

Features

• Supports most objects and collection types of any size and mix, such as a List<Dictionary<string, Vector3>>[,,,,,].
• Can use public properties to safely save and load references like sprites, materials, addressables, or other component data.
• Read and write real-time asynchronously or with coroutines.
• Update data in existing GameObjects and ScriptableObjects by reading directly into them.
• Files are compactly formatted in binary (1 and 0 bits), making them smaller than text-based formats like JSON.
• Convert objects to a byte array and use with encryption or network transmission.
• Optionally convert an object into a Base64 string.
• Flip the bits of object data using a byte mask to make it less human-readable.
• Can find and read the first occurrence of a single saved field or property.

Device Security

• Uses Type safety to mitigate type confusion attacks.
• Does not read or write fully qualified assembly names to prevent assembly loading attacks.
• Only creates objects using their default constructor to avoid deserialization attacks.
• Explicitly does not read or write known unsafe types to reduce information disclosure and remote code execution attacks.

File Integrity

• Uses a CRC-32 hash to detect if data is corrupt or changed.
• Writes as a temporary file first to avoid corruption while saving.
• Locks resources in a thread-safe way with SemaphoreSlim and ConcurrentDictionary.

Debug Log

• Messages show read and write data while playing inside Unity Editor.
• Helpful warnings assist with a bug-free development.
• Messages and warnings can be disabled and are not compiled with a final build.

Tutorial for saving in Unity Loady Dungeons:

https://youtu.be/cTE1s_JueTE?si=8pFfQbqRpzw0Pmeq