mirror of
https://github.com/WerWolv/ImHex-Patterns.git
synced 2026-03-28 07:47:02 -05:00
bc5a55affe
* use Virtual Filesystem + ZLib support + auto endian detection * fix builtin * smh how am I only noticing that I just duplicated a function for no reason * ifdefs to fix actions moment
99 lines
3.8 KiB
Rust
99 lines
3.8 KiB
Rust
#pragma author DexrnZacAttack
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#pragma description Minecraft LCE Save File
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// NOTE: SPEGHETTI CODE!
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import std.string;
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import std.mem;
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import std.core;
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import hex.dec;
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#ifdef __IMHEX__
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import hex.core;
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#endif
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#pragma pattern_limit 1000000
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#pragma array_limit 1000000
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fn getFileType(str filename) {
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// EWWWWWWW HOW DO I FIX THIS
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match (std::string::substr(filename, std::string::length(filename) - 4, 4)) {
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(".mcr"):
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if (std::string::starts_with(filename, "r."))
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return "Overworld Region";
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else if (std::string::starts_with(filename, "DIM-1"))
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return "Nether Region";
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else if (std::string::starts_with(filename, "DIM1"))
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return "End Region";
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else
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return "Unknown Region";
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(".dat"):
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if (std::string::starts_with(filename, "players"))
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return "Player";
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else if (std::string::starts_with(filename, "data/")) {
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if (std::string::starts_with(filename, "data/map_"))
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return "Map File";
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else
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return "Other DAT File";
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} else if (std::string::starts_with(filename, "level"))
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return "Level File";
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else
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return "Unknown DAT";
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(_): return "File";
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}
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};
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struct LCEIndex {
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char16 filename[0x40] [[name("File Name")]]; // name of the file.
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u32 filesize [[name("File Size")]]; // how big the file is
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u32 offset [[name("File Offset")]]; // where the file is located
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if (parent.header.curVersion > 1)
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u64 timestamp [[name("File Timestamp")]]; // useless as it writes weirdly, and differently on certain consoles. (e.g using time since last reset, etc)
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u8 file[filesize] @ offset [[name(this.filename),comment(getFileType(std::string::to_string(filename))),attribute_name(this.filename)]]; // files in the index
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#ifdef __IMHEX__
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hex::core::add_virtual_file(std::string::to_string(filename), file);
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#endif
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} [[name("(" + getFileType(std::string::to_string(filename)) + ") " + std::string::to_string(this.filename))]];
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struct LCEHeader {
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u32 offset [[name("Index Offset")]]; // where the index is located
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u32 count [[name("Index File Count")]]; // amount of files in the index
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u16 minVersion [[name("Minimum LCE file version")]]; // Minimum LCE version supported by file
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u16 curVersion [[name("Current LCE file version")]]; // Version that the file was written with
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};
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struct CompressedSave {
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be u64 zlibSize;
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u8 zlibData[std::mem::size() - 8];
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std::mem::Section zlib = std::mem::create_section(std::format("Compressed Save"));
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hex::dec::zlib_decompress(zlibData, zlib, 15);
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u8 decompressed[zlibSize] @ 0x00 in zlib;
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#ifdef __IMHEX__
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hex::core::add_virtual_file("save", decompressed);
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#endif
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std::error("This save is ZLib-compressed, grab the decompressed save from the Virtual Filesystem tab and use this pattern on it.");
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};
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struct LCESave {
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u8 zlibMagic[2] @ 0x08 [[hidden]];
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// check if header matches
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if (zlibMagic[0] == 0x78 && zlibMagic[1] == 0x9C)
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CompressedSave compSave @ 0x00;
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// if not we will have continued.
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le u16 endianCheck @ 0x0A [[hidden]];
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// check if version is bigger than 14
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if (endianCheck > 14)
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std::core::set_endian(std::mem::Endian::Big);
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// rest of the processing
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LCEHeader header [[name("Header")]];
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if (header.curVersion > 1)
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LCEIndex index[header.count] @ header.offset [[name("File Index")]]; // the index
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else
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LCEIndex index[header.count / 136] @ header.offset [[name("File Index")]]; // the index (pre-release)
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} [[name("Save " + "(Version " + std::string::to_string(header.curVersion) + ")")]];
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LCESave Save @ 0x00;
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