mirror of
https://github.com/libretro/scummvm.git
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162 lines
3.6 KiB
C++
162 lines
3.6 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include "stdafx.h"
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#include "scumm.h"
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#include "resource.h"
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void Scumm_v3::readIndexFile()
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{
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uint16 blocktype;
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uint32 itemsize;
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int numblock = 0;
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int num, i;
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debug(9, "readIndexFile()");
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openRoom(-1);
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openRoom(0);
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while (!fileEof(_fileHandle)) {
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itemsize = fileReadDwordLE();
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blocktype = fileReadWordLE();
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if (fileReadFailed(_fileHandle))
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break;
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switch (blocktype) {
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case 0x4E52: // 'NR'
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fileReadWordLE();
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break;
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case 0x5230: // 'R0'
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_numRooms = fileReadWordLE();
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break;
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case 0x5330: // 'S0'
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_numScripts = fileReadWordLE();
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break;
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case 0x4E30: // 'N0'
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_numSounds = fileReadWordLE();
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break;
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case 0x4330: // 'C0'
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_numCostumes = fileReadWordLE();
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break;
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case 0x4F30: // 'O0'
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_numGlobalObjects = fileReadWordLE();
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break;
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}
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fileSeek(_fileHandle, itemsize - 8, SEEK_CUR);
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}
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clearFileReadFailed(_fileHandle);
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fileSeek(_fileHandle, 0, SEEK_SET);
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/* I'm not sure for those values yet, they will have to be rechecked */
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_numVariables = 800; /* 800 */
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_numBitVariables = 4096; /* 2048 */
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_numLocalObjects = 200; /* 200 */
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_numArray = 50;
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_numVerbs = 100;
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_numNewNames = 0;
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_objectRoomTable = NULL;
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_numCharsets = 9; /* 9 */
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_numInventory = 80; /* 80 */
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_numGlobalScripts = 200;
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_shadowPaletteSize = 256;
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_shadowPalette = (byte *) calloc(_shadowPaletteSize, 1); // stupid for now. Need to be removed later
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_numFlObject = 50;
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allocateArrays();
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while (1) {
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itemsize = fileReadDwordLE();
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if (fileReadFailed(_fileHandle))
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break;
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blocktype = fileReadWordLE();
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numblock++;
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switch (blocktype) {
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case 0x4E52: // 'NR'
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fileSeek(_fileHandle, itemsize - 6, SEEK_CUR);
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break;
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case 0x5230: // 'R0'
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readResTypeList(rtRoom, MKID('ROOM'), "room");
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break;
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case 0x5330: // 'S0'
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readResTypeList(rtScript, MKID('SCRP'), "script");
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break;
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case 0x4E30: // 'N0'
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readResTypeList(rtSound, MKID('SOUN'), "sound");
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break;
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case 0x4330: // 'C0'
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readResTypeList(rtCostume, MKID('COST'), "costume");
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break;
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case 0x4F30: // 'O0'
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num = fileReadWordLE();
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assert(num == _numGlobalObjects);
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for (i = 0; i != num; i++) {
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uint32 bits = fileReadByte();
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byte tmp;
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bits |= fileReadByte() << 8;
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bits |= fileReadByte() << 16;
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_classData[i] = bits;
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tmp = fileReadByte();
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_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
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_objectStateTable[i] = tmp >> OF_STATE_SHL;
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}
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break;
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default:
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error("Bad ID %c%c found in directory!", blocktype & 0xFF, blocktype >> 8);
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return;
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}
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}
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openRoom(-1);
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}
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void Scumm_v3::loadCharset(int no)
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{
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uint32 size;
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memset(_charsetData, 0, sizeof(_charsetData));
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checkRange(4, 0, no, "Loading illegal charset %d");
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openRoom(-1);
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openRoom(98 + no);
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size = fileReadWordLE();
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fileRead(_fileHandle, createResource(6, no, size), size);
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openRoom(-1);
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}
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