1 files changed, 374 insertions, 0 deletions
diff --git a/engines/adl/hires1.cpp b/engines/adl/hires1.cpp
new file mode 100644
index 0000000000..096d8ef496
--- /dev/null
+++ b/engines/adl/hires1.cpp
@@ -0,0 +1,374 @@
+/* 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/system.h"
+#include "common/debug.h"
+#include "common/error.h"
+#include "common/file.h"
+#include "common/stream.h"
+#include "common/ptr.h"
+
+#include "adl/hires1.h"
+#include "adl/display.h"
+
+namespace Adl {
+
+void HiRes1Engine::runIntro() const {
+	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_0));
+
+	stream->seek(IDI_HR1_OFS_LOGO_0);
+	_display->setMode(DISPLAY_MODE_HIRES);
+	_display->loadFrameBuffer(*stream);
+	_display->updateHiResScreen();
+	delay(4000);
+
+	if (shouldQuit())
+		return;
+
+	_display->setMode(DISPLAY_MODE_TEXT);
+
+	StreamPtr basic(_files->createReadStream(IDS_HR1_LOADER));
+	Common::String str;
+
+	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_0, '"');
+	_display->printAsciiString(str + '\r');
+
+	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_1, '"');
+	_display->printAsciiString(str + "\r\r");
+
+	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_2, '"');
+	_display->printAsciiString(str + "\r\r");
+
+	str = readStringAt(*basic, IDI_HR1_OFS_PD_TEXT_3, '"');
+	_display->printAsciiString(str + '\r');
+
+	inputKey();
+	if (g_engine->shouldQuit())
+		return;
+
+	_display->setMode(DISPLAY_MODE_MIXED);
+
+	str = readStringAt(*stream, IDI_HR1_OFS_GAME_OR_HELP);
+
+	bool instructions = false;
+
+	while (1) {
+		_display->printString(str);
+		Common::String s = inputString();
+
+		if (g_engine->shouldQuit())
+			break;
+
+		if (s.empty())
+			continue;
+
+		if (s[0] == APPLECHAR('I')) {
+			instructions = true;
+			break;
+		} else if (s[0] == APPLECHAR('G')) {
+			break;
+		}
+	};
+
+	if (instructions) {
+		_display->setMode(DISPLAY_MODE_TEXT);
+		stream->seek(IDI_HR1_OFS_INTRO_TEXT);
+
+		const uint pages[] = { 6, 6, 4, 5, 8, 7, 0 };
+
+		uint page = 0;
+		while (pages[page] != 0) {
+			_display->home();
+
+			uint count = pages[page++];
+			for (uint i = 0; i < count; ++i) {
+				str = readString(*stream);
+				_display->printString(str);
+				stream->seek(3, SEEK_CUR);
+			}
+
+			inputString();
+
+			if (g_engine->shouldQuit())
+				return;
+
+			stream->seek(6, SEEK_CUR);
+		}
+	}
+
+	_display->printAsciiString("\r");
+
+	_display->setMode(DISPLAY_MODE_MIXED);
+
+	// Title screen shown during loading
+	stream.reset(_files->createReadStream(IDS_HR1_EXE_1));
+	stream->seek(IDI_HR1_OFS_LOGO_1);
+	_display->loadFrameBuffer(*stream);
+	_display->updateHiResScreen();
+	delay(2000);
+}
+
+void HiRes1Engine::init() {
+	if (Common::File::exists("MYSTHOUS.DSK")) {
+		_files = new Files_DOS33();
+		if (!static_cast<Files_DOS33 *>(_files)->open("MYSTHOUS.DSK"))
+			error("Failed to open MYSTHOUS.DSK");
+	} else
+		_files = new Files_Plain();
+
+	_graphics = new Graphics_v1(*_display);
+
+	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_1));
+
+	// Some messages have overrides inside the executable
+	_gameStrings.cantGoThere = readStringAt(*stream, IDI_HR1_OFS_STR_CANT_GO_THERE);
+	_gameStrings.dontHaveIt = readStringAt(*stream, IDI_HR1_OFS_STR_DONT_HAVE_IT);
+	_gameStrings.dontUnderstand = readStringAt(*stream, IDI_HR1_OFS_STR_DONT_UNDERSTAND);
+	_gameStrings.gettingDark = readStringAt(*stream, IDI_HR1_OFS_STR_GETTING_DARK);
+
+	// Load other strings from executable
+	_strings.enterCommand = readStringAt(*stream, IDI_HR1_OFS_STR_ENTER_COMMAND);
+	_strings.verbError = readStringAt(*stream, IDI_HR1_OFS_STR_VERB_ERROR);
+	_strings.nounError = readStringAt(*stream, IDI_HR1_OFS_STR_NOUN_ERROR);
+	_strings.playAgain = readStringAt(*stream, IDI_HR1_OFS_STR_PLAY_AGAIN);
+	_strings.pressReturn = readStringAt(*stream, IDI_HR1_OFS_STR_PRESS_RETURN);
+	_strings.lineFeeds = readStringAt(*stream, IDI_HR1_OFS_STR_LINE_FEEDS);
+
+	// Set message IDs
+	_messageIds.cantGoThere = IDI_HR1_MSG_CANT_GO_THERE;
+	_messageIds.dontUnderstand = IDI_HR1_MSG_DONT_UNDERSTAND;
+	_messageIds.itemDoesntMove = IDI_HR1_MSG_ITEM_DOESNT_MOVE;
+	_messageIds.itemNotHere = IDI_HR1_MSG_ITEM_NOT_HERE;
+	_messageIds.thanksForPlaying = IDI_HR1_MSG_THANKS_FOR_PLAYING;
+
+	// Load message offsets
+	stream->seek(IDI_HR1_OFS_MSGS);
+	for (uint i = 0; i < IDI_HR1_NUM_MESSAGES; ++i)
+		_messages.push_back(_files->getDataBlock(IDS_HR1_MESSAGES, stream->readUint16LE()));
+
+	// Load picture data from executable
+	stream->seek(IDI_HR1_OFS_PICS);
+	for (uint i = 1; i <= IDI_HR1_NUM_PICS; ++i) {
+		byte block = stream->readByte();
+		Common::String name = Common::String::format("BLOCK%i", block);
+		uint16 offset = stream->readUint16LE();
+		_pictures[i] = _files->getDataBlock(name, offset);
+	}
+
+	// Load commands from executable
+	stream->seek(IDI_HR1_OFS_CMDS_1);
+	readCommands(*stream, _roomCommands);
+
+	stream->seek(IDI_HR1_OFS_CMDS_0);
+	readCommands(*stream, _globalCommands);
+
+	// Load dropped item offsets
+	stream->seek(IDI_HR1_OFS_ITEM_OFFSETS);
+	for (uint i = 0; i < IDI_HR1_NUM_ITEM_OFFSETS; ++i) {
+		Common::Point p;
+		p.x = stream->readByte();
+		p.y = stream->readByte();
+		_itemOffsets.push_back(p);
+	}
+
+	// Load right-angle line art
+	stream->seek(IDI_HR1_OFS_CORNERS);
+	uint16 cornersCount = stream->readUint16LE();
+	for (uint i = 0; i < cornersCount; ++i)
+		_corners.push_back(_files->getDataBlock(IDS_HR1_EXE_1, IDI_HR1_OFS_CORNERS + stream->readUint16LE()));
+
+	if (stream->eos() || stream->err())
+		error("Failed to read game data from '" IDS_HR1_EXE_1 "'");
+
+	stream->seek(IDI_HR1_OFS_VERBS);
+	loadWords(*stream, _verbs, _priVerbs);
+
+	stream->seek(IDI_HR1_OFS_NOUNS);
+	loadWords(*stream, _nouns, _priNouns);
+}
+
+void HiRes1Engine::initGameState() {
+	_state.vars.resize(IDI_HR1_NUM_VARS);
+
+	StreamPtr stream(_files->createReadStream(IDS_HR1_EXE_1));
+
+	// Load room data from executable
+	_roomDesc.clear();
+	stream->seek(IDI_HR1_OFS_ROOMS);
+	for (uint i = 0; i < IDI_HR1_NUM_ROOMS; ++i) {
+		Room room;
+		stream->readByte();
+		_roomDesc.push_back(stream->readByte());
+		for (uint j = 0; j < 6; ++j)
+			room.connections[j] = stream->readByte();
+		room.picture = stream->readByte();
+		room.curPicture = stream->readByte();
+		_state.rooms.push_back(room);
+	}
+
+	// Load item data from executable
+	stream->seek(IDI_HR1_OFS_ITEMS);
+	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();
+
+		byte size = stream->readByte();
+
+		for (uint i = 0; i < size; ++i)
+			item.roomPictures.push_back(stream->readByte());
+
+		_state.items.push_back(item);
+	}
+}
+
+void HiRes1Engine::restartGame() {
+	_display->printString(_strings.pressReturn);
+	initState();
+	_display->printAsciiString(_strings.lineFeeds);
+}
+
+void HiRes1Engine::printString(const Common::String &str) {
+	Common::String wrap = str;
+	wordWrap(wrap);
+	_display->printString(wrap);
+
+	if (_messageDelay)
+		delay(14 * 166018 / 1000);
+}
+
+Common::String HiRes1Engine::loadMessage(uint idx) const {
+	StreamPtr stream(_messages[idx]->createReadStream());
+	return readString(*stream, APPLECHAR('\r')) + APPLECHAR('\r');
+}
+
+void HiRes1Engine::printMessage(uint idx) {
+	// Messages with hardcoded overrides don't delay after printing.
+	// It's unclear if this is a bug or not. In some cases the result
+	// is that these strings will scroll past the four-line text window
+	// before the user gets a chance to read them.
+	// NOTE: later games seem to wait for a key when the text window
+	// overflows and don't use delays. It might be better to use
+	// that system for this game as well.
+	switch (idx) {
+	case IDI_HR1_MSG_CANT_GO_THERE:
+		_display->printString(_gameStrings.cantGoThere);
+		return;
+	case IDI_HR1_MSG_DONT_HAVE_IT:
+		_display->printString(_gameStrings.dontHaveIt);
+		return;
+	case IDI_HR1_MSG_DONT_UNDERSTAND:
+		_display->printString(_gameStrings.dontUnderstand);
+		return;
+	case IDI_HR1_MSG_GETTING_DARK:
+		_display->printString(_gameStrings.gettingDark);
+		return;
+	default:
+		printString(loadMessage(idx));
+	}
+}
+
+void HiRes1Engine::drawItems() {
+	Common::List<Item>::iterator item;
+
+	uint dropped = 0;
+
+	for (item = _state.items.begin(); item != _state.items.end(); ++item) {
+		// Skip items not in this room
+		if (item->room != _state.room)
+			continue;
+
+		if (item->state == IDI_ITEM_DROPPED) {
+			// Draw dropped item if in normal view
+			if (getCurRoom().picture == getCurRoom().curPicture)
+				drawItem(*item, _itemOffsets[dropped++]);
+		} else {
+			// Draw fixed item if current view is in the pic list
+			Common::Array<byte>::const_iterator pic;
+
+			for (pic = item->roomPictures.begin(); pic != item->roomPictures.end(); ++pic) {
+				if (*pic == getCurRoom().curPicture) {
+					drawItem(*item, item->position);
+					break;
+				}
+			}
+		}
+	}
+}
+
+void HiRes1Engine::drawItem(Item &item, const Common::Point &pos) {
+	if (item.isLineArt) {
+		StreamPtr stream(_corners[item.picture - 1]->createReadStream());
+		static_cast<Graphics_v1 *>(_graphics)->drawCorners(*stream, pos);
+	} else
+		drawPic(item.picture, pos);
+}
+
+void HiRes1Engine::loadRoom(byte roomNr) {
+	_roomData.description = loadMessage(_roomDesc[_state.room - 1]);
+}
+
+void HiRes1Engine::showRoom() {
+	clearScreen();
+	loadRoom(_state.room);
+
+	if (!_state.isDark) {
+		drawPic(getCurRoom().curPicture);
+		drawItems();
+	}
+
+	_display->updateHiResScreen();
+	_messageDelay = false;
+	printString(_roomData.description);
+	_messageDelay = true;
+}
+
+void HiRes1Engine::wordWrap(Common::String &str) const {
+	uint end = 39;
+
+	while (1) {
+		if (str.size() <= end)
+			return;
+
+		while (str[end] != APPLECHAR(' '))
+			--end;
+
+		str.setChar(APPLECHAR('\r'), end);
+		end += 40;
+	}
+}
+
+Engine *HiRes1Engine_create(OSystem *syst, const AdlGameDescription *gd) {
+	return new HiRes1Engine(syst, gd);
+}
+
+} // End of namespace Adl