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engines/access/resources.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "access/resources.h"
+#include "access/access.h"
+#include "access/amazon/amazon_resources.h"
+#include "access/martian/martian_resources.h"
+#include "common/translation.h"
+
+namespace Access {
+
+Resources *Resources::init(AccessEngine *vm) {
+	if (vm->getGameID() == kGameAmazon)
+		return new Amazon::AmazonResources(vm);
+	else if (vm->getGameID() == kGameMartianMemorandum)
+		return new Martian::MartianResources(vm);
+
+	error("Unknown game");
+}
+
+bool Resources::load(Common::U32String &errorMessage) {
+	Common::File f;
+	Common::String filename = "access.dat";
+	if (!f.open(filename.c_str())) {
+		errorMessage = Common::U32String::format(_("Unable to locate the '%s' engine data file."), filename.c_str());
+		return false;
+	}
+
+	// Check for the magic identifier
+	char buffer[4];
+	f.read(buffer, 4);
+	if (strncmp(buffer, "SVMA", 4)) {
+		errorMessage = Common::U32String::format(_("The '%s' engine data file is corrupt."), filename.c_str());
+		return false;
+	}
+
+	// Validate the version number
+	uint expectedVersion = 2;
+	uint version = f.readUint16LE();
+	if (version != expectedVersion) {
+		errorMessage = Common::U32String::format(
+			_("Incorrect version of the '%s' engine data file found. Expected %d.%d but got %d.%d."),
+			filename.c_str(), expectedVersion, 0, version, 0);
+		return false;
+	}
+
+	// Load in the index
+	uint count = f.readUint16LE();
+	_datIndex.resize(count);
+	for (auto &datEntry : _datIndex) {
+		datEntry._gameId = f.readByte();
+		datEntry._discType = f.readByte();
+		datEntry._demoType = f.readByte();
+
+		byte language = f.readByte();
+		switch (language) {
+		case 0:
+			datEntry._language = (Common::Language)0;
+			break;
+		case 5:
+			datEntry._language = Common::EN_ANY;
+			break;
+		case 23:
+			datEntry._language = Common::ES_ESP;
+			break;
+		default:
+			error("Unknown language");
+			break;
+		}
+
+		datEntry._fileOffset = f.readUint32LE();
+	}
+
+	// Load in the data for the game
+	load(f);
+
+	return true;
+}
+
+void Resources::load(Common::SeekableReadStream &s) {
+	uint count;
+
+	// Get the offset of the data for the game
+	uint entryOffset = findEntry(_vm->getGameID(), _vm->isCD() ? 1 : 0,
+		_vm->isDemo() ? 1 : 0, _vm->getLanguage());
+	s.seek(entryOffset);
+
+	// Load filename list
+	count = s.readUint16LE();
+	FILENAMES.resize(count);
+	for (uint idx = 0; idx < count; ++idx)
+		FILENAMES[idx] = s.readString();
+
+	// Load the character data
+	count = s.readUint16LE();
+	CHARTBL.resize(count);
+	for (uint idx = 0; idx < count; ++idx) {
+		uint count2 = s.readUint16LE();
+		CHARTBL[idx].resize(count2);
+		if (count2 > 0)
+			s.read(&CHARTBL[idx][0], count2);
+	}
+
+	// Load the room data
+	count = s.readUint16LE();
+	ROOMTBL.resize(count);
+	for (uint idx = 0; idx < count; ++idx) {
+		ROOMTBL[idx]._desc = s.readString();
+		ROOMTBL[idx]._travelPos.x = s.readSint16LE();
+		ROOMTBL[idx]._travelPos.y = s.readSint16LE();
+		uint count2 = s.readUint16LE();
+		ROOMTBL[idx]._data.resize(count2);
+		if (count2 > 0)
+			s.read(&ROOMTBL[idx]._data[0], count2);
+	}
+
+	// Load the deaths list
+	count = s.readUint16LE();
+	DEATHS.resize(count);
+	for (uint idx = 0; idx < count; ++idx) {
+		DEATHS[idx]._screenId = s.readByte();
+		DEATHS[idx]._msg = s.readString();
+	}
+
+	// Load in the inventory list
+	count = s.readUint16LE();
+	INVENTORY.resize(count);
+	for (uint idx = 0; idx < count; ++idx) {
+		INVENTORY[idx]._desc = s.readString();
+		for (uint idx2 = 0; idx2 < 4; ++idx2)
+			INVENTORY[idx]._combo[idx2] = s.readSint16LE();
+	}
+}
+
+uint Resources::findEntry(byte gameId, byte discType, byte demoType, Common::Language language) {
+	for (const DATEntry &de : _datIndex) {
+		if (de._gameId == gameId && de._discType == discType &&
+			de._demoType == demoType && de._language == language)
+			return de._fileOffset;
+	}
+
+	error("Could not locate appropriate access.dat entry");
+}
+
+/*------------------------------------------------------------------------*/
+
+const byte INITIAL_PALETTE[18 * 3] = {
+	0x00, 0x00, 0x00,
+	0xff, 0xff, 0xff,
+	0xf0, 0xf0, 0xf0,
+	0xe0, 0xe0, 0xe0,
+	0xd0, 0xd0, 0xd0,
+	0xc0, 0xc0, 0xc0,
+	0xb0, 0xb0, 0xb0,
+	0xa0, 0xa0, 0xa0,
+	0x90, 0x90, 0x90,
+	0x80, 0x80, 0x80,
+	0x70, 0x70, 0x70,
+	0x60, 0x60, 0x60,
+	0x50, 0x50, 0x50,
+	0x40, 0x40, 0x40,
+	0x30, 0x30, 0x30,
+	0x20, 0x20, 0x20,
+	0x10, 0x10, 0x10,
+	0x00, 0x00, 0x00
+};
+
+const char *const GENERAL_MESSAGES[] = {
+	"LOOKING THERE REVEALS NOTHING OF INTEREST.", // LOOK_MESSAGE
+	"THAT DOESN'T OPEN.",               // OPEN_MESSAGE
+	"THAT WON'T MOVE.",                 // MOVE_MESSAGE
+	"YOU CAN'T TAKE THAT.",             // GET_MESSAGE
+	"THAT DOESN'T SEEM TO WORK.",       // USE_MESSAGE
+	"YOU CAN'T CLIMB THAT.",            // GO_MESSAGE
+	"THERE SEEMS TO BE NO RESPONSE.",   // TALK_MESSAGE
+	"THIS OBJECT REQUIRES NO HINTS",    // HELP_MESSAGE
+	"THIS OBJECT REQUIRES NO HINTS",    // HELP_MESSAGE
+	"THAT DOESN'T SEEM TO WORK."        // USE_MESSAGE
+};
+
+const char *const ESP_GENERAL_MESSAGES[] = {
+	"MIRANDO AHI NO ENCONTRARAS NADA DE INTERES.", // LOOK_MESSAGE
+	"NO ESTA ABIERTO.",                 // OPEN_MESSAGE
+	"NO PUEDES MOVERLO.",               // MOVE_MESSAGE
+	"NO PUEDES COGER ESO.",             // GET_MESSAGE
+	"NO PARECE QUE FUNCIONE.",          // USE_MESSAGE
+	"NO PUEDES SUBIRTE A ESO.",         // GO_MESSAGE
+	"PARECE QUE NO TE RESPONDE.",       // TALK_MESSAGE
+	"NO HAY AYUDA PARA ESE OBJETO.",    // HELP_MESSAGE
+	"NO HAY AYUDA PARA ESE OBJETO.",    // HELP_MESSAGE
+	"NO PARECE QUE FUNCIONE."           // USE_MESSAGE
+};
+
+const int INVCOORDS[][4] = {
+	{ 23, 68, 15, 49 },
+	{ 69, 114, 15, 49 },
+	{ 115, 160, 15, 49 },
+	{ 161, 206, 15, 49 },
+	{ 207, 252, 15, 49 },
+	{ 253, 298, 15, 49 },
+	{ 23, 68, 50, 84 },
+	{ 69, 114, 50, 84 },
+	{ 115, 160, 50, 84 },
+	{ 161, 206, 50, 84 },
+	{ 207, 252, 50, 84 },
+	{ 253, 298, 50, 84 },
+	{ 23, 68, 85, 119 },
+	{ 69, 114, 85, 119 },
+	{ 115, 160, 85, 119 },
+	{ 161, 206, 85, 119 },
+	{ 207, 252, 85, 119 },
+	{ 253, 298, 85, 119 },
+	{ 23, 68, 120, 154 },
+	{ 69, 114, 120, 154 },
+	{ 115, 160, 120, 154 },
+	{ 161, 206, 120, 154 },
+	{ 207, 252, 120, 154 },
+	{ 253, 298, 120, 154 },
+	{ 237, 298, 177, 193 },
+	{ 25, 85, 177, 193 }
+};
+
+} // End of namespace Access