Initial commit

engines/tinsel/inv_objects.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 "tinsel/inv_objects.h"
+#include "common/memstream.h"
+#include "tinsel/tinsel.h"
+
+namespace Tinsel {
+
+InventoryObject::InventoryObject(Common::MemoryReadStreamEndian &stream) {
+	_id = stream.readUint32();
+	_hIconFilm = stream.readUint32();
+	_hScript = stream.readUint32();
+	if (TinselVersion == 0) {
+		_attribute = 0;
+	} else {
+		_attribute = stream.readUint32();
+	}
+}
+
+template<typename T>
+class InventoryObjectsImpl : public InventoryObjects {
+public:
+	InventoryObjectsImpl(const byte *objects, int numObjects) {
+		bool bigEndian = (TinselV1Mac || TinselV1Saturn);
+		auto stream = new Common::MemoryReadStreamEndian(objects, T::SIZE() * numObjects, bigEndian, DisposeAfterUse::NO);
+		for (int i = 0; i < numObjects; i++) {
+			_objects.push_back(T(*stream));
+		}
+		assert((!stream->eos()) && stream->pos() == stream->size());
+		delete stream;
+	}
+	~InventoryObjectsImpl(){};
+	const InventoryObject *GetInvObject(int id) override {
+		auto index = GetObjectIndexIfExists(id);
+		if (index != -1) {
+			return _objects.data() + index;
+		}
+		return nullptr;
+	}
+	const InventoryObjectT3 *GetInvObjectT3(int id) override;
+
+	const InventoryObject *GetObjectByIndex(int index) const override {
+		assert(index >= 0 && index < numObjects());
+		return _objects.data() + index;
+	}
+	void SetObjectFilm(int id, SCNHANDLE hFilm) override {
+		int index = GetObjectIndexIfExists(id);
+		_objects[index].setIconFilm(hFilm);
+	}
+	int GetObjectIndexIfExists(int id) const override {
+		for (uint i = 0; i < _objects.size(); i++) {
+			if (_objects[i].getId() == id) {
+				return i;
+			}
+		}
+		return -1;
+	};
+	int numObjects() const override {
+		return _objects.size();
+	}
+private:
+	Common::Array<T> _objects;
+};
+
+template<>
+const InventoryObjectT3 *InventoryObjectsImpl<InventoryObjectT3>::GetInvObjectT3(int id) {
+	auto index = GetObjectIndexIfExists(id);
+	if (index != -1) {
+		return _objects.data() + index;
+	}
+	return nullptr;
+}
+
+template<>
+const InventoryObjectT3 *InventoryObjectsImpl<InventoryObject>::GetInvObjectT3(int id) {
+	error("Can't query Noir inventory objects from non Noir-game");
+}
+
+InventoryObjects *InstantiateInventoryObjects(const byte *invObjects, int numObjects) {
+	switch (TinselVersion) {
+	case 3:
+		return new InventoryObjectsImpl<InventoryObjectT3>(invObjects, numObjects);
+	default:
+		return new InventoryObjectsImpl<InventoryObject>(invObjects, numObjects);
+	}
+}
+
+} // End of namespace Tinsel