Improve README

BOLT/bolt-extract/main.cpp

@@ -13,7 +13,7 @@ void configure(cxxopts::Options& cmd) {
   cmd.add_options()
     ("i,input", "input file", cxxopts::value<std::string>())
     ("b,big", "Use Big Endian byte order (N64, CD-i)")
-    ("a,algo", "Choose algorithm to use.", cxxopts::value<std::string>()->default_value(""), "cdi|dos|n64|gba|win|xbox")
+    ("a,algo", "Choose algorithm to use.", cxxopts::value<std::string>()->default_value(""), "cdi|dos|n64|gba|win|xbox|ps2")
     ("o,output", "output directory (optional, defaults to input file's directory)", cxxopts::value<std::string>())
     ("h,help", "show help")
     ;
@@ -45,6 +45,7 @@ std::map<std::string, BOLT::algorithm_t> algorithm_mappings = {
   {"win", BOLT::algorithm_t::WIN},
   {"windows", BOLT::algorithm_t::WIN},
   {"xbox", BOLT::algorithm_t::XBOX},
+  {"ps2", BOLT::algorithm_t::XBOX},
 };
 
 BOLT::algorithm_t determine_algorithm(const std::filesystem::path &input_file, std::string algorithm) {

README.md

@@ -10,7 +10,7 @@ Here are some games confirmed to use BOLT archives:
 - 3-D TableSports (DOS)
 - The Game of Life (Windows 95)
 - Bassmasters 2000 (N64)
-- Namco Museum (N64, GBA, Dreamcast)
+- Namco Museum (N64, GBA, Dreamcast, PS2, XBox)
 - Ms. Pac-Man - Maze Madness (N64, Dreamcast)
 - Power Rangers - Lightspeed Rescue (N64)
 - **Starcraft 64** (N64)
@@ -28,20 +28,19 @@ Usage:
   bolt-extract [OPTION...] INPUT_FILE [OUTPUT_DIR]
 
   -b, --big                     Use Big Endian byte order (N64, CD-i)
-  -a, --algo cdi|dos|n64|gba|win|xbox
+  -a, --algo cdi|dos|n64|gba|win|xbox|ps2
                                 Choose algorithm to use. (default: "")
   -h, --help                    show help
 ```
 
 Example: `bolt-extract.exe -a n64 -b "StarCraft 64 (U).z64" starcraft64/`
 
 ## Supported Algorithms
-- `n64` - Archive in z64 rom.
-- `gba` - Archive in gba rom.
-- `dos` - Archive either from MSDOS game or CD-i game.
-- `cdi` - Archive for some older CD-i games.
-- `win` - Archive for Windows game.
-- `xbox` - Archive for XBOX game.
+- `cdi` - For some older CD-i games before 1993.
+- `dos` - Either from MSDOS or CD-i games between 1993 and 1996.
+- `win` - For The Game of Life (1998).
+- `n64`/`gba` - Used in games released between 1999 and 2003. You may need to manually separate BOLT archives in gba roms.
+- `xbox`/`ps2` - Same as the n64 algorithm but with altered data structures. Used in games released from 2004 onward.
 
 ## Notes
 - Only `z64` format roms for N64 are supported.