Name:		YaneuraoGame
Description:		
Archive:	.dat .lay .scp
Author:	        痴漢公賊 (glanser@163.com)
Version:	0.9.1
Status:	        Alpha

【TODO】

【.dat Archive Info】
    the dat is actual type of archive with directory.
    meta-data according to practical situation, may be variable types of resource.
    
    	header:
		s8 magic[8];		// with 3 version: version 1 - "yanepack" version 2 - "yanepkEx" version 3 - "yanepkDx" 
		u32 index_entries;	// resource number
 	index segment: (on the basis of ver，may exist following 3 version)
	    version 1:
		s8 name[32];	// resource name
		u32 offset;	// resource data offset(count from header)
		u32 length;	// data length

	    version 2:
		s8 name[32];	// resource name
		u32 offset;	// resource data offset(count from header)
		u32 comprlen;	// compressed data length
		u32 uncomprlen;	// decompressed data length(if decompressed data length equal to compressed data length, means data without compression)

	    version 3:
		s8 name[256];	// resource name
		u32 offset;	// resource data offset(count from header)
		u32 comprlen;	// compressed data length
		u32 uncomprlen;	// decompressed data length(if decompressed data length equal to compressed data length, means data without compression)
	data:
		closely behind index segment

【.yga Resource Info】
    the yga is actual type of bmp.

    	header:
		s8 magic[4];	// "yga"
		u32 width;	// image width
		u32 height;	// image height
		u32 color_type;	// color type: 0 - ?? non-0 - 32 bit 
		u32 uncomprlen;	// actual data length of lzss decompression
		u32 comprlen;	// data length of lzss decompression
	data:
		closely behind index segment, format is lzss compressed data stream

【ChangeLog】
2008-08-17 10:41 ver 0.9.1 fixed a extraction error due to definition inversion of index item uncomprlen and comprlen field in version 3
2008-04-08 12:26 ver 0.9.0 supported extracting .scp and .lay resource
2007-06-10 15:15 ver 0.8.0 1st version released