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mozaic

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mozaic [2025/03/18 01:28] – Yukimozaic [2025/03/20 01:28] (current) – Yuki
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 Some game distributed with lottery tickets from Loto-Québec Some game distributed with lottery tickets from Loto-Québec
  
-Download and install instructions: [[https://www.youtube.com/watch?v=YygmFM3qP8w]] (also hacked to bypass ticket validity checks)+Download: [[https://archive.org/details/mozaic_202207]] (also hacked to bypass ticket validity checks) 
 + 
 +See also: [[https://www.youtube.com/watch?v=YygmFM3qP8w]]
  
 ===== Install on Wine ===== ===== Install on Wine =====
  
-This game makes heavy use of Indeo 5 and other DirectShow codecs so make sure to install it. Ideally, use a 32-bit prefix and pretend you're Windows XP.+This game makes heavy use of Indeo 5 and other DirectShow codecs so make sure to install it. Use a 32-bit prefix, and ideally pretend you're Windows XP and enable windowed mode.
  
 <code bash> <code bash>
 # mount the ISO # mount the ISO
 +# the game won't run without it
 sudo mount MOZAIC.iso /mnt/cdrom sudo mount MOZAIC.iso /mnt/cdrom
  
-# create a new 32-bit prefix, and optionally pretend you're on Windows XP +# create a new 32-bit prefix 
-# it currently won't work in a 64-bit prefix like the one that is created by default+# it currently won't work in a 64-bit prefix due to the codecs 
 +# also make sure the CD-ROM is detected as such
 export WINEARCH=win32 export WINEARCH=win32
 export WINEPREFIX=~/.wine32 export WINEPREFIX=~/.wine32
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 |magic|string|0|4 bytes|"PACK"| |magic|string|0|4 bytes|"PACK"|
 |size|u32|4|4 bytes|Number of entries| |size|u32|4|4 bytes|Number of entries|
-|???| |8|32 bytes|Unknown|+|???| |8|32 bytes|Seems unused, can be used as a comment field|
 |filelist|File|40|size * (12 + name)| | |filelist|File|40|size * (12 + name)| |
  
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 |filesize|u32|0|4 bytes| | |filesize|u32|0|4 bytes| |
 |offset|u32|4|4 bytes|Byte offset from the beginning of the file| |offset|u32|4|4 bytes|Byte offset from the beginning of the file|
-|???|u32|8|4 bytes|Unknown|+|???|u32|8|4 bytes|Unknown, the game crashes right away if it's not what it expected|
 |name|Null-terminated string|12| |File path and name| |name|Null-terminated string|12| |File path and name|
  
Line 65: Line 69:
 </code> </code>
  
-===== Hacking =====+===== Tools ===== 
 + 
 +<html><details><summary>Node.js pak extractor</summary></html> 
 +<code javascript extractpak.js> 
 +const fs = require('node:fs'); 
 +const path = require('node:path'); 
 + 
 +if(process.argv.length < 3) 
 +{ 
 +    console.log("error: no input file"); 
 +    process.exit(1); 
 +} 
 + 
 +var f = fs.readFileSync(process.argv[2]); 
 + 
 +var magic = f.toString('hex', 0, 4); 
 +if(magic != "5041434b") 
 +{ 
 +    console.log("error: invalid file"); 
 +    process.exit(1); 
 +} 
 + 
 +var size = f.readUInt32LE(4); 
 +var offset = 40; 
 + 
 +for(var i = 0; i < size; i++) 
 +{ 
 +    var filesize = f.readUint32LE(offset); offset+=4; 
 +    var fileoffset = f.readUint32LE(offset); offset+=4; 
 +    var mystery = f.readUint32LE(offset); offset+=4; 
 +    var next = f.indexOf(0, offset, 'ascii'); 
 +    var name = f.toString('ascii', offset, next).replaceAll("\\", "/"); 
 +    offset = next+1; 
 +    console.log("%s; %s", name, mystery); 
 + 
 +    fs.mkdirSync(path.dirname(name), { recursive: true }); 
 +    var data = fs.createWriteStream(name, 'binary'); 
 +    data.end(f.slice(fileoffset, fileoffset+filesize)); 
 +} 
 +</code> 
 +<html></details></html>
  
-soon+[[https://a39.dev/yuki/mpar|mpar]] - extractor and archiver
mozaic.1742275695.txt.gz · Last modified: by Yuki

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