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engines/parallaction/inventory.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 PARALLACTION_INVENTORY_H
+#define PARALLACTION_INVENTORY_H
+
+
+#include "graphics/surface.h"
+
+namespace Parallaction {
+
+class Parallaction;
+
+struct InventoryItem {
+	uint32		_id;			// object name (lowest 16 bits are always zero)
+	uint16		_index;			// index to frame in objs file
+};
+
+struct InventoryProperties {
+	uint _itemPitch;
+	uint _itemWidth;
+	uint _itemHeight;
+
+	int _maxItems;
+
+	int _itemsPerLine;
+	int _maxLines;
+
+	int _width;
+	int _height;
+};
+
+#define MAKE_INVENTORY_ID(x) (((x) & 0xFFFF) << 16)
+
+typedef int16 ItemPosition;
+typedef uint16 ItemName;
+
+class Inventory {
+
+protected:
+	uint16			_numVerbs;
+
+	InventoryItem	*_items;
+	uint16			_numItems;
+	int				_maxItems;
+
+public:
+	Inventory(int maxItems, InventoryItem *verbs);
+	virtual ~Inventory();
+
+	ItemPosition addItem(ItemName name, uint32 value);
+	ItemPosition addItem(ItemName item);
+	void removeItem(ItemName name);
+	void clear(bool keepVerbs = true);
+
+	const InventoryItem* getItem(ItemPosition pos) const;
+	ItemName getItemName(ItemPosition pos) const;
+
+	ItemPosition findItem(ItemName name) const;
+
+	int16	getNumItems() const { return _numItems; }
+};
+
+
+
+class InventoryRenderer {
+	Parallaction	*_vm;
+	InventoryProperties *_props;
+
+	Inventory		*_inv;
+	Common::Point	_pos;
+
+	Graphics::Surface	_surf;
+
+protected:
+	void getItemRect(ItemPosition pos, Common::Rect &r);
+
+	void drawItem(ItemPosition pos, ItemName name);
+	void refresh();
+
+public:
+	InventoryRenderer(Parallaction *vm, InventoryProperties *props);
+	virtual ~InventoryRenderer();
+
+	void setInventory(Inventory *inventory);
+
+	void showInventory();
+	void hideInventory();
+
+	ItemPosition hitTest(const Common::Point &p) const;
+	void highlightItem(ItemPosition pos, byte color);
+	void drawItem(ItemName name, byte *buffer, uint pitch);
+
+	byte	*getData() { return (byte *)_surf.getPixels(); }
+
+	void	getRect(Common::Rect &r) const;
+	int16	getNumLines() const;
+};
+
+} // namespace Parallaction
+
+#endif