Initial commit

engines/adl/adl_v3.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 "adl/adl_v3.h"
+
+namespace Adl {
+
+AdlEngine_v3::AdlEngine_v3(OSystem *syst, const AdlGameDescription *gd) :
+		AdlEngine_v2(syst, gd) {
+}
+
+Common::String AdlEngine_v3::getItemDescription(const Item &item) const {
+	return _itemDesc[item.description - 1];
+}
+
+void AdlEngine_v3::loadItemDescriptions(Common::SeekableReadStream &stream, byte count) {
+	int32 startPos = stream.pos();
+	uint16 baseAddr = stream.readUint16LE();
+
+	// This code assumes that the first pointer points to a string that
+	// directly follows the pointer table
+	assert(baseAddr != 0);
+	baseAddr -= count * 2;
+
+	for (uint i = 0; i < count; ++i) {
+		stream.seek(startPos + i * 2);
+		uint16 offset = stream.readUint16LE();
+
+		if (offset > 0) {
+			stream.seek(startPos + offset - baseAddr);
+			_itemDesc.push_back(readString(stream, 0xff));
+		} else
+			_itemDesc.push_back(Common::String());
+	}
+
+	if (stream.eos() || stream.err())
+		error("Error loading item descriptions");
+}
+
+int AdlEngine_v3::o_isNounNotInRoom(ScriptEnv &e) {
+	OP_DEBUG_1("\t&& NO_SUCH_ITEMS_IN_ROOM(%s)", itemRoomStr(e.arg(1)).c_str());
+
+	bool isAnItem = false;
+
+	for (const auto &item : _state.items) {
+		if (item.noun == e.getNoun()) {
+			isAnItem = true;
+
+			if (item.room == roomArg(e.arg(1)))
+				return -1;
+		}
+	}
+
+	return (isAnItem ? 1 : -1);
+}
+
+} // End of namespace Adl