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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 "glk/frotz/header.h"
#include "common/textconsole.h"
namespace Glk {
namespace Frotz {
const Header::StoryEntry Header::RECORDS[25] = {
{ SHERLOCK, 21, "871214" },
{ SHERLOCK, 26, "880127" },
{ BEYOND_ZORK, 47, "870915" },
{ BEYOND_ZORK, 49, "870917" },
{ BEYOND_ZORK, 51, "870923" },
{ BEYOND_ZORK, 57, "871221" },
{ ZORK_ZERO, 296, "881019" },
{ ZORK_ZERO, 366, "890323" },
{ ZORK_ZERO, 383, "890602" },
{ ZORK_ZERO, 393, "890714" },
{ SHOGUN, 292, "890314" },
{ SHOGUN, 295, "890321" },
{ SHOGUN, 311, "890510" },
{ SHOGUN, 322, "890706" },
{ ARTHUR, 54, "890606" },
{ ARTHUR, 63, "890622" },
{ ARTHUR, 74, "890714" },
{ JOURNEY, 26, "890316" },
{ JOURNEY, 30, "890322" },
{ JOURNEY, 77, "890616" },
{ JOURNEY, 83, "890706" },
{ LURKING_HORROR, 203, "870506" },
{ LURKING_HORROR, 219, "870912" },
{ LURKING_HORROR, 221, "870918" },
{ UNKNOWN, 0, "------" }
};
void Header::loadHeader(Common::SeekableReadStream &f) {
h_version = f.readByte();
h_config = f.readByte();
if (h_version < V1 || h_version > V8)
error("Unknown Z-code version");
if (h_version == V6)
error("Cannot play Z-code version 6");
if (h_version == V3 && (h_config & CONFIG_BYTE_SWAPPED))
error("Byte swapped story file");
h_release = f.readUint16BE();
h_resident_size = f.readUint16BE();
h_start_pc = f.readUint16BE();
h_dictionary = f.readUint16BE();
h_objects = f.readUint16BE();
h_globals = f.readUint16BE();
h_dynamic_size = f.readUint16BE();
h_flags = f.readUint16BE();
f.read(h_serial, 6);
/* Auto-detect buggy story files that need special fixes */
_storyId = UNKNOWN;
for (int i = 0; RECORDS[i]._storyId != UNKNOWN; ++i) {
if (h_release == RECORDS[i]._release) {
if (!strncmp((const char *)h_serial, RECORDS[i]._serial, 6)) {
_storyId = RECORDS[i]._storyId;
break;
}
}
}
h_abbreviations = f.readUint16BE();
h_file_size = f.readUint16BE();
h_checksum = f.readUint16BE();
f.seek(H_FUNCTIONS_OFFSET);
h_functions_offset = f.readUint16BE();
h_strings_offset = f.readUint16BE();
f.seek(H_TERMINATING_KEYS);
h_terminating_keys = f.readUint16BE();
f.seek(H_ALPHABET);
h_alphabet = f.readUint16BE();
h_extension_table = f.readUint16BE();
// Zork Zero Macintosh doesn't have the graphics flag set
if (_storyId == ZORK_ZERO && h_release == 296)
h_flags |= GRAPHICS_FLAG;
}
} // End of namespace Scott
} // End of namespace Glk
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