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engines/ultima/ultima8/world/item_selection_process.h

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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/>.
+ *
+ */
+
+#ifndef ULTIMA8_WORLD_ITEMSELECTIONPROCESS_H
+#define ULTIMA8_WORLD_ITEMSELECTIONPROCESS_H
+
+#include "ultima/ultima8/kernel/process.h"
+#include "ultima/ultima8/misc/classtype.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+class Item;
+
+/**
+ * A process to select items for use.
+ */
+class ItemSelectionProcess : public Process {
+public:
+	ItemSelectionProcess();
+	~ItemSelectionProcess();
+
+	ENABLE_RUNTIME_CLASSTYPE()
+
+	void run() override;
+
+	//! Select the next item. If grab is true, pick up loose items now.
+	bool selectNextItem(bool grab);
+
+	//! Clear the selector sprite
+	void clearSelection();
+
+	//! Avatar moved - clear the selector if needed.
+	void avatarMoved();
+
+	//! Use the selected item (if any)
+	void useSelectedItem();
+
+	bool loadData(Common::ReadStream *rs, uint32 version);
+	void saveData(Common::WriteStream *ws) override;
+
+	static ItemSelectionProcess *get_instance() {
+		return _instance;
+	}
+
+	uint16 getSelectedItem() const {
+		return _selectedItem;
+	}
+
+private:
+	void putItemSelectionOnItem(Item *item);
+
+	uint16 _selectedItem;
+	int32 _ax;
+	int32 _ay;
+	int32 _az;
+
+	static ItemSelectionProcess *_instance;
+};
+
+} // End of namespace Ultima8
+} // End of namespace Ultima
+
+#endif