core_clu.bt

// Template created by Mark "hogsy" Sowden <markelswo@gmail.com>
/* Core Design, CLU (cluster) format
 *
 * Usages:
 * 	- Herdy Gerdy (2002, PS2)
 *
 * Notes:
 * 	Levels use the original level name as the description,
 * 	while the stored file uses a hashed name instead, hence
 * 	why the CLU names for levels appear somewhat random.
 *
 * 	Table of contents is sorted by hash, hence why the last
 * 	32-bit value increments (was pretty confusing at first!)
 * 	This is also why the table of contents doesn't match with
 * 	the order of the data.
 */

struct CLUHeader
{
	uint32_t magic;   /* 'CLU\0' */
	uint32_t version; /* always appears to be 2 - changed to 1 in later version */
	uint32_t headerLength;
	uint32_t numIndices;
	uint32_t hash;
	uint32_t unused;
	char     description[ 60 ];
};

struct CLUIndex
{
	uint32_t nameOffset; /* always resolves to 4 bytes before data, because it's unused */
	uint32_t size;
	uint32_t offset;
	uint32_t hash;
};

/* hashing...
uint32_t hash = 0;
char c;
while ( ( c = *string ) != '\0' ) {
	hash += ( hash << 7 ) + ( hash << 1 ) + ( uint32_t ) c;
	string++;
}

return hash;
*/

struct CLUHeader header;
struct CLUIndex  indices[ header.numIndices ];