diff options
Diffstat (limited to 'engines/adl/hires0.cpp')
| -rw-r--r-- | engines/adl/hires0.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/engines/adl/hires0.cpp b/engines/adl/hires0.cpp new file mode 100644 index 0000000000..a348779e89 --- /dev/null +++ b/engines/adl/hires0.cpp @@ -0,0 +1,168 @@ +/* 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 "common/textconsole.h" + +#include "adl/hires0.h" +#include "adl/graphics.h" +#include "adl/disk.h" + +namespace Adl { + +void HiRes0Engine::init() { + _graphics = new Graphics_v2(*_display); + + _disk = new DiskImage(); + if (!_disk->open(IDS_HR0_DISK_IMAGE)) + error("Failed to open disk image '" IDS_HR0_DISK_IMAGE "'"); + + _disk->setMode13(true); + + StreamPtr stream(_disk->createReadStream(0x1f, 0x2, 0x00, 2)); + + // TODO: all these strings/offsets/etc are the same as hires2 + + for (uint i = 0; i < IDI_HR0_NUM_MESSAGES; ++i) + _messages.push_back(readDataBlockPtr(*stream)); + + // Read parser messages + stream.reset(_disk->createReadStream(0x1a, 0x1)); + _strings.verbError = readStringAt(*stream, 0x4f); + _strings.nounError = readStringAt(*stream, 0x8e); + _strings.enterCommand = readStringAt(*stream, 0xbc); + + // Read time string + stream.reset(_disk->createReadStream(0x19, 0x7, 0xd7)); + _strings_v2.time = readString(*stream, 0xff); + + // Read line feeds + stream.reset(_disk->createReadStream(0x19, 0xb, 0xf8, 1)); + _strings.lineFeeds = readString(*stream); + + // Read opcode strings + stream.reset(_disk->createReadStream(0x1a, 0x6, 0x00, 2)); + _strings_v2.saveInsert = readStringAt(*stream, 0x5f); + _strings_v2.saveReplace = readStringAt(*stream, 0xe5); + _strings_v2.restoreInsert = readStringAt(*stream, 0x132); + _strings_v2.restoreReplace = readStringAt(*stream, 0x1c2); + _strings.playAgain = readStringAt(*stream, 0x225); + _strings.pressReturn = readStringAt(*stream, 0x25f); + + _messageIds.cantGoThere = IDI_HR0_MSG_CANT_GO_THERE; + _messageIds.dontUnderstand = IDI_HR0_MSG_DONT_UNDERSTAND; + _messageIds.itemDoesntMove = IDI_HR0_MSG_ITEM_DOESNT_MOVE; + _messageIds.itemNotHere = IDI_HR0_MSG_ITEM_NOT_HERE; + _messageIds.thanksForPlaying = IDI_HR0_MSG_THANKS_FOR_PLAYING; + + // Load global picture data + stream.reset(_disk->createReadStream(0x19, 0xa, 0x80, 0)); + byte picNr; + while ((picNr = stream->readByte()) != 0xff) { + if (stream->eos() || stream->err()) + error("Error reading global pic list"); + + _pictures[picNr] = readDataBlockPtr(*stream); + } + + // Load item picture data + stream.reset(_disk->createReadStream(0x1e, 0x9, 0x05)); + for (uint i = 0; i < IDI_HR0_NUM_ITEM_PICS; ++i) { + stream->readByte(); // number + _itemPics.push_back(readDataBlockPtr(*stream)); + } + + // Load commands from executable + stream.reset(_disk->createReadStream(0x1d, 0x7, 0x00, 2)); + readCommands(*stream, _roomCommands); + + stream.reset(_disk->createReadStream(0x1f, 0x7, 0x00, 3)); + readCommands(*stream, _globalCommands); + + // Load dropped item offsets + stream.reset(_disk->createReadStream(0x1b, 0x4, 0x15)); + for (uint i = 0; i < IDI_HR0_NUM_ITEM_OFFSETS; ++i) { + Common::Point p; + p.x = stream->readByte(); + p.y = stream->readByte(); + _itemOffsets.push_back(p); + } + + // Load verbs + stream.reset(_disk->createReadStream(0x19, 0x0, 0x00, 3)); + loadWords(*stream, _verbs, _priVerbs); + + // Load nouns + stream.reset(_disk->createReadStream(0x22, 0x2, 0x00, 2)); + loadWords(*stream, _nouns, _priNouns); +} + +void HiRes0Engine::initGameState() { + _state.vars.resize(IDI_HR0_NUM_VARS); + + StreamPtr stream(_disk->createReadStream(0x21, 0x5, 0x0e, 2)); + + for (uint i = 0; i < IDI_HR0_NUM_ROOMS; ++i) { + Room room; + stream->readByte(); // number + for (uint j = 0; j < 6; ++j) + room.connections[j] = stream->readByte(); + room.data = readDataBlockPtr(*stream); + room.picture = stream->readByte(); + room.curPicture = stream->readByte(); + room.isFirstTime = stream->readByte(); + _state.rooms.push_back(room); + } + + stream.reset(_disk->createReadStream(0x21, 0x0)); + + byte id; + while ((id = stream->readByte()) != 0xff) { + Item item = Item(); + item.id = id; + item.noun = stream->readByte(); + item.room = stream->readByte(); + item.picture = stream->readByte(); + item.isLineArt = stream->readByte(); + item.position.x = stream->readByte(); + item.position.y = stream->readByte(); + item.state = stream->readByte(); + item.description = stream->readByte(); + + stream->readByte(); // Struct size + + byte picListSize = stream->readByte(); + + // Flag to keep track of what has been drawn on the screen + stream->readByte(); + + for (uint i = 0; i < picListSize; ++i) + item.roomPictures.push_back(stream->readByte()); + + _state.items.push_back(item); + } +} + +Engine *HiRes0Engine_create(OSystem *syst, const AdlGameDescription *gd) { + return new HiRes0Engine(syst, gd); +} + +} // End of namespace Adl |