- new Grid class to handle all zones / areas stuff

- adapted Logic/Walk code to use it

svn-id: r12250

1 files changed, 93 insertions, 0 deletions

diff --git a/queen/grid.h b/queen/grid.h
new file mode 100644
index 0000000000..b81e5b5148
--- /dev/null
+++ b/queen/grid.h
@@ -0,0 +1,93 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2003-2004 The ScummVM project
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#ifndef QUEENGRID_H
+#define QUEENGRID_H
+
+#include "common/util.h"
+#include "queen/structs.h"
+
+namespace Queen {
+
+enum GridScreen {
+	GS_ROOM  = 0,
+	GS_PANEL = 1,
+	GS_COUNT = 2
+};
+
+class QueenEngine;
+
+class Grid {
+public:
+
+	Grid(QueenEngine *vm);
+
+	void readDataFrom(uint16 numObjects, uint16 numRooms, byte *&ptr);
+
+	void setZone(GridScreen screen, uint16 zoneNum, uint16 x1, uint16 y1, uint16 x2, uint16 y2);
+	void setZone(GridScreen screen, uint16 zoneNum, const Box &box);
+	uint16 findZoneForPos(GridScreen screen, uint16 x, uint16 y) const;
+	uint16 findAreaForPos(GridScreen screen, uint16 x, uint16 y) const;
+	void clear(GridScreen screen);
+	void setupNewRoom(uint16 room, uint16 firstRoomObjNum);
+	void setupPanel();
+	void drawZones();
+	const Box *zone(GridScreen screen, uint16 index) const;
+
+	Verb findVerbUnderCursor(int16 cursorx, int16 cursory) const;
+	uint16 findObjectUnderCursor(int16 cursorx, int16 cursory) const;
+	uint16 findObjectNumber(uint16 zoneNum) const;
+	uint16 findScale(uint16 x, uint16 y) const;
+
+	Area *area(int room, int num) const { return &_area[room][num]; }
+	uint16 areaMax(int room) const { return _areaMax[room]; }
+	uint16 objMax(int room) const { return _objMax[room]; } 
+
+	enum {
+		MAX_ZONES = 32,
+		MAX_AREAS = 11
+	};
+
+
+private:
+
+	struct ZoneSlot {
+		bool valid;
+		Box box;
+	};
+
+	ZoneSlot _zones[GS_COUNT][MAX_ZONES];
+	
+	int16 *_objMax;
+
+	int16 *_areaMax;
+
+	Area (*_area)[MAX_AREAS];
+
+	Box *_objectBox;
+
+	QueenEngine *_vm;
+};
+
+
+} // End of namespace Queen
+
+#endif