Merge branch 'main' of https://github.com/SolatoroboHacking/CCBUtils

Author: SolatoroboHacking

README.md

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+# CCBUtils
+
+CCBUtils is a pair of utilities that handle the proprietary CyberConnect2 Batch (CCB) archives found within Solatorobo: Red the Hunter.
+For the first time, these utilities make it possible to not only extract these files, but reconstruct them with modifications.
+
+## What do these tools do?
+
+CCB Extractor can extract every file from every CCB file in the game* and decompress it appropriately. Correct extraction and decompression
+was verified by comparing the extracted files with those extracted by Console Tool, which was the only existing tool that could properly work
+with these archives. The output is identical.
+
+CCB Constructor can compress files appropriately and create CCB archives that can be re-inserted into the game's ROM. Even when modified, these files are seen as valid
+by the game engine and are 100% compatible with the game's code.
+
+## What do these tools NOT do?
+
+CCB Extractor does not currently have the option to leave extracted files in their compressed state, it will always decompress them before writing.
+
+CCB Constructor does not produce output CCB files that are perfectly byte-matching with the originals, even when no modifications have been made to them.
+This is due to differences in the exact compression algorithms used by me for this project and those used by the game's developers. This likely cannot be
+fixed without trial and error, and will <i>not</i> be a priority to fix, as the compressed data is still valid and decompresses perfectly.
+
+Neither of these tools allow you to extract files from or re-insert files within a DS ROM. You must use an external tool for that.
+
+## What questions are still to be answered?
+
+No tests have been done yet on a ROM without an anti-piracy patch, and there does not seem to be much available information on how exactly the game's
+anti-piracy check works.
+
+I made the bold claim earlier that CCB Extractor and CCB Constructor work perfectly with every CCB archive in the game. This has not been tested fully,
+and it is not currently known if there are any CCB files that differ in some way from the expected format.
+
+## Build instructions
+
+This project was designed to be built with MinGW for Cygwin for Windows binaries, or Linux using the g++ compiler. However, it will likely compile under any
+C++ compiler.
+
+  ### Cygwin instructions
+
+  ```
+  x86_64-w64-mingw32-g++ --static -o CCB[UTIL_NAME].exe CCB[UTIL_NAME].cpp
+  ```
+
+  ### Linux instructions
+
+  ```
+  g++ --static -o CCB[UTIL_NAME] CCB[UTIL_NAME].cpp
+  ```
+
+## Special Thanks
+
+I would like to take a moment to thank @PeterLemon for taking the time to put together his <a href="https://github.com/PeterLemon/Nintendo_DS_Compressors">Nintendo_DS_Compressors</a>
+repository. I can take absolutely no credit for the LZ11 and RLE compression and decompression functions used in these utilities as they are almost exactly the same as the original
+code written by @PeterLemon. Using this C code saved me so much time, and allowed me to focus on my goal of actually documenting and modding this game rather than trying to wrap
+my thick skull around binary compression algorithms.