Patch.tjs: Xp3filter.tjs

The presence of Xp3filter.tjs indicates you are likely dealing with the KiriKiri (KAG)

3. Patch.tjs

Purpose

Patch.tjs is a script manager/loader that coordinates modifications. While Xp3filter.tjs handles low-level file I/O, Patch.tjs operates at a higher level to: Patch.tjs Xp3filter.tjs

Common implementation details to highlight in the post

• Parsing XP3 headers: signature, version, file count, table offsets.
• Handling compression: zlib/LZ4/deflate variants; decompress before editing, recompress after.
• Maintaining block alignment (commonly 0x200 or 0x1000) and address fixing.
• Updating table checksums or file hashes if present.
• Atomic writes: write to temp file and rename to avoid corruption.

The Modder’s Toolkit: Demystifying Patch.tjs and Xp3filter.tjs The presence of Xp3filter

• patch.tjs
• xp3filter.tjs