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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Header$
*
*/
#include "common/stdafx.h"
#include "scumm/scumm.h"
#include "scumm/intern.h"
#include "scumm/resource.h"
#include "scumm/util.h"
namespace Scumm {
void ScummEngine_v4::readIndexFile() {
uint16 blocktype;
uint32 itemsize;
int numblock = 0;
debug(9, "readIndexFile()");
closeRoom();
openRoom(0);
while (!_fileHandle->eof()) {
// Figure out the sizes of various resources
itemsize = _fileHandle->readUint32LE();
blocktype = _fileHandle->readUint16LE();
if (_fileHandle->ioFailed())
break;
switch (blocktype) {
case 0x4E52: // 'NR'
_fileHandle->readUint16LE();
break;
case 0x5230: // 'R0'
_numRooms = _fileHandle->readUint16LE();
break;
case 0x5330: // 'S0'
_numScripts = _fileHandle->readUint16LE();
break;
case 0x4E30: // 'N0'
_numSounds = _fileHandle->readUint16LE();
break;
case 0x4330: // 'C0'
_numCostumes = _fileHandle->readUint16LE();
break;
case 0x4F30: // 'O0'
_numGlobalObjects = _fileHandle->readUint16LE();
break;
}
_fileHandle->seek(itemsize - 8, SEEK_CUR);
}
_fileHandle->clearIOFailed();
_fileHandle->seek(0, SEEK_SET);
readMAXS(0);
allocateArrays();
while (1) {
itemsize = _fileHandle->readUint32LE();
if (_fileHandle->ioFailed())
break;
blocktype = _fileHandle->readUint16LE();
numblock++;
switch (blocktype) {
case 0x4E52: // 'NR'
// Names of rooms. Maybe we should put them into a table, for use by the debugger?
for (int room; (room = _fileHandle->readByte()); ) {
char buf[10];
_fileHandle->read(buf, 9);
buf[9] = 0;
for (int i = 0; i < 9; i++)
buf[i] ^= 0xFF;
debug(5, "Room %d: '%s'", room, buf);
}
break;
case 0x5230: // 'R0'
readResTypeList(rtRoom, MKID('ROOM'), "room");
break;
case 0x5330: // 'S0'
readResTypeList(rtScript, MKID('SCRP'), "script");
break;
case 0x4E30: // 'N0'
readResTypeList(rtSound, MKID('SOUN'), "sound");
break;
case 0x4330: // 'C0'
readResTypeList(rtCostume, MKID('COST'), "costume");
break;
case 0x4F30: // 'O0'
readGlobalObjects();
break;
default:
// FIXME: this is a little hack because Indy3 FM-TOWNS has
// 32 extra bytes of unknown meaning appended to 00.LFL
if (!(_gameId == GID_INDY3 && _platform == Common::kPlatformFMTowns))
error("Bad ID %c%c found in directory!", blocktype & 0xFF, blocktype >> 8);
return;
}
}
closeRoom();
}
void ScummEngine_v4::loadCharset(int no) {
uint32 size;
memset(_charsetData, 0, sizeof(_charsetData));
checkRange(4, 0, no, "Loading illegal charset %d");
closeRoom();
Common::File file;
char buf[20];
sprintf(buf, "%03d.LFL", 900 + no);
file.open(buf);
if (file.isOpen() == false) {
error("loadCharset(%d): Missing file charset: %s", no, buf);
}
size = file.readUint32LE() + 11;
file.read(res.createResource(rtCharset, no, size), size);
}
void ScummEngine_v4::readMAXS(int blockSize) {
// FIXME - I'm not sure for those values yet, they will have to be rechecked
_numVariables = 800; // 800
_numBitVariables = 4096; // 2048
_numLocalObjects = 200; // 200
_numArray = 50;
_numVerbs = 100;
_numNewNames = 50;
_objectRoomTable = NULL;
_numCharsets = 9; // 9
_numInventory = 80; // 80
_numGlobalScripts = 200;
_numFlObject = 50;
_shadowPaletteSize = 256;
_shadowPalette = (byte *) calloc(_shadowPaletteSize, 1); // FIXME - needs to be removed later
}
void ScummEngine_v4::readGlobalObjects() {
int i;
int num = _fileHandle->readUint16LE();
assert(num == _numGlobalObjects);
uint32 bits;
byte tmp;
for (i = 0; i != num; i++) {
bits = _fileHandle->readByte();
bits |= _fileHandle->readByte() << 8;
bits |= _fileHandle->readByte() << 16;
_classData[i] = bits;
tmp = _fileHandle->readByte();
_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
_objectStateTable[i] = tmp >> OF_STATE_SHL;
}
}
} // End of namespace Scumm
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