DO/BTB
From Dark Omen Wiki
(Difference between revisions)
Line 1: | Line 1: | ||
+ | == BUILDING BLOCKS == | ||
+ | |||
The BTB file consists of chunks of the form: | The BTB file consists of chunks of the form: | ||
Line 14: | Line 16: | ||
unsigned int recordSize; // including header | unsigned int recordSize; // including header | ||
}; | }; | ||
+ | |||
+ | == OVERALL FILE STRUCTURE == | ||
The observed format of the BTB files in Dark Omen follows in order: | The observed format of the BTB files in Dark Omen follows in order: | ||
Line 47: | Line 51: | ||
STRING RECORD ("/0") type=1005, size=40 | STRING RECORD ("/0") type=1005, size=40 | ||
2-TUPLE RECORD ( [Number of Regions in file, Number of line segments in all regions] ) type=9, size=16 | 2-TUPLE RECORD ( [Number of Regions in file, Number of line segments in all regions] ) type=9, size=16 | ||
+ | |||
+ | == UNKNOWN CHUNKS == | ||
+ | |||
+ | This chunk is made up of several 3-tuples, which contain unknown data | ||
+ | |||
+ | UNKNOWN CHUNK, type=2, size=<varies> | ||
+ | 3-TUPLE RECORD 0 (unknown) type=501, size=20 | ||
+ | 3-TUPLE RECORD 1 (unknown) type=501, size=20 | ||
+ | . | ||
+ | . | ||
+ | . | ||
+ | 3-TUPLE RECORD n (unknown) type=501, size=20 |
Revision as of 08:58, 11 May 2008
Contents |
BUILDING BLOCKS
The BTB file consists of chunks of the form:
struct CHUNK_HEADER { unsigned int chunkType; unsigned int chunkSize; // excluding header };
Each chunk consists of 'records' which are similar to chunks, but the record size is inclusive of the header.
struct RECORD_HEADER { unsigned int recordType; unsigned int recordSize; // including header };
OVERALL FILE STRUCTURE
The observed format of the BTB files in Dark Omen follows in order:
START/END CHUNK, type=0xBEAFEED0, size=0 HEADER CHUNK, type=0, size=240 UNKNOWN CHUNK, type=1, size=<varies> OBSTACLES CHUNK, type=2, size=<varies> REGION CHUNK 0, type=3, size=<varies> REGION CHUNK 1, type=3, size=<varies> . . . REGION CHUNK n, type=3, size=<varies> GAME OBJECT CHUNK, type=4, size=<varies> START/END CHUNK, type=0xBEAFEEDO, size=0
START/END CHUNK
This chunk is just a marker of the start/end of the file; it contains no data
HEADER CHUNK
HEADER CHUNK, type=0, size=240 INTEGER RECORD (<Map width in tiles> * 8) type=1, size=12 INTEGER RECORD (<Map height in tiles> * 8) type=2, size=12 STRING RECORD (Mercenary Army file name without extension) type=1001, size=40 STRING RECORD (Enemy Army file name without extension) type=1002, size=40 STRING RECORD (CTL filename without extension) type=1003, size=40 STRING RECORD ("/0") type=1004, size=40 STRING RECORD ("/0") type=1005, size=40 2-TUPLE RECORD ( [Number of Regions in file, Number of line segments in all regions] ) type=9, size=16
UNKNOWN CHUNKS
This chunk is made up of several 3-tuples, which contain unknown data
UNKNOWN CHUNK, type=2, size=<varies> 3-TUPLE RECORD 0 (unknown) type=501, size=20 3-TUPLE RECORD 1 (unknown) type=501, size=20 . . . 3-TUPLE RECORD n (unknown) type=501, size=20