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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#include "scumm/file.h"
#include "scumm/scumm_v2.h"
#include "scumm/resource.h"
namespace Scumm {
void ScummEngine_v2::readClassicIndexFile() {
int i;
if (_game.id == GID_MANIAC) {
if (_game.version == 0) {
_numGlobalObjects = 256;
_numRooms = 55;
_numCostumes = 25;
_numScripts = 160;
_numSounds = 70;
} else if (_game.platform == Common::kPlatformNES) {
_numGlobalObjects = 775;
_numRooms = 55;
// costumes 25-36 are special. see v1MMNEScostTables[] in costume.cpp
// costumes 37-76 are room graphics resources
// costume 77 is a character set translation table
// costume 78 is a preposition list
// costume 79 is unused but allocated, so the total is a nice even number :)
_numCostumes = 80;
_numScripts = 200;
_numSounds = 100;
} else {
_numGlobalObjects = 800;
_numRooms = 55;
_numCostumes = 35;
_numScripts = 200;
_numSounds = 100;
}
} else if (_game.id == GID_ZAK) {
if (_game.platform == Common::kPlatformC64) {
_numGlobalObjects = 775;
_numRooms = 59;
_numCostumes = 38;
_numScripts = 155;
_numSounds = 127;
} else {
_numGlobalObjects = 775;
_numRooms = 61;
_numCostumes = 37;
_numScripts = 155;
_numSounds = 120;
}
}
_fileHandle->seek(0, SEEK_SET);
readMAXS(0);
allocateArrays();
_fileHandle->readUint16LE(); /* version magic number */
for (i = 0; i != _numGlobalObjects; i++) {
byte tmp = _fileHandle->readByte();
_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
_objectStateTable[i] = tmp >> OF_STATE_SHL;
}
for (i = 0; i < _numRooms; i++) {
_res->_types[rtRoom][i]._roomno = i;
}
_fileHandle->seek(_numRooms, SEEK_CUR);
for (i = 0; i < _numRooms; i++) {
_res->_types[rtRoom][i]._roomoffs = _fileHandle->readUint16LE();
if (_res->_types[rtRoom][i]._roomoffs == 0xFFFF)
_res->_types[rtRoom][i]._roomoffs = (uint32)RES_INVALID_OFFSET;
}
for (i = 0; i < _numCostumes; i++) {
_res->_types[rtCostume][i]._roomno = _fileHandle->readByte();
}
for (i = 0; i < _numCostumes; i++) {
_res->_types[rtCostume][i]._roomoffs = _fileHandle->readUint16LE();
if (_res->_types[rtCostume][i]._roomoffs == 0xFFFF)
_res->_types[rtCostume][i]._roomoffs = (uint32)RES_INVALID_OFFSET;
}
for (i = 0; i < _numScripts; i++) {
_res->_types[rtScript][i]._roomno = _fileHandle->readByte();
}
for (i = 0; i < _numScripts; i++) {
_res->_types[rtScript][i]._roomoffs = _fileHandle->readUint16LE();
if (_res->_types[rtScript][i]._roomoffs == 0xFFFF)
_res->_types[rtScript][i]._roomoffs = (uint32)RES_INVALID_OFFSET;
}
for (i = 0; i < _numSounds; i++) {
_res->_types[rtSound][i]._roomno = _fileHandle->readByte();
}
for (i = 0; i < _numSounds; i++) {
_res->_types[rtSound][i]._roomoffs = _fileHandle->readUint16LE();
if (_res->_types[rtSound][i]._roomoffs == 0xFFFF)
_res->_types[rtSound][i]._roomoffs = (uint32)RES_INVALID_OFFSET;
}
}
void ScummEngine_v2::readEnhancedIndexFile() {
_numGlobalObjects = _fileHandle->readUint16LE();
_fileHandle->seek(_numGlobalObjects, SEEK_CUR);
_numRooms = _fileHandle->readByte();
_fileHandle->seek(_numRooms * 3, SEEK_CUR);
_numCostumes = _fileHandle->readByte();
_fileHandle->seek(_numCostumes * 3, SEEK_CUR);
_numScripts = _fileHandle->readByte();
_fileHandle->seek(_numScripts * 3, SEEK_CUR);
_numSounds = _fileHandle->readByte();
_fileHandle->clearErr();
_fileHandle->seek(0, SEEK_SET);
readMAXS(0);
allocateArrays();
_fileHandle->readUint16LE(); /* version magic number */
readGlobalObjects();
readResTypeList(rtRoom);
readResTypeList(rtCostume);
readResTypeList(rtScript);
readResTypeList(rtSound);
}
void ScummEngine_v2::readGlobalObjects() {
int i;
int num = _fileHandle->readUint16LE();
assert(num == _numGlobalObjects);
for (i = 0; i != num; i++) {
byte tmp = _fileHandle->readByte();
_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
_objectStateTable[i] = tmp >> OF_STATE_SHL;
}
}
void ScummEngine_v2::readIndexFile() {
int magic = 0;
debug(9, "readIndexFile()");
closeRoom();
openRoom(0);
magic = _fileHandle->readUint16LE();
switch (magic) {
case 0x0100:
debug("Enhanced V2 game detected");
assert(_game.version == 2);
readEnhancedIndexFile();
break;
case 0x0A31:
debug("Classic V1 game detected");
assert(_game.version == 1);
readClassicIndexFile();
break;
case 0x4643:
if (!(_game.platform == Common::kPlatformNES))
error("Use maniac target");
debug("NES V1 game detected");
assert(_game.version == 1);
readClassicIndexFile();
break;
case 0x132:
debug("C64 V1 game detected");
if (_game.id == GID_MANIAC) {
assert(_game.version == 0);
} else {
assert(_game.version == 1);
}
readClassicIndexFile();
break;
case 0x032:
debug("Apple II V1 game detected");
assert(_game.version == 0);
readClassicIndexFile();
break;
default:
error("Unknown magic id (0x%X) - this version is unsupported", magic);
break;
}
closeRoom();
}
void ScummEngine_v2::loadCharset(int num) {
// Stub, V2 font resources are hardcoded into the engine.
}
} // End of namespace Scumm
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