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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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef SHERLOCK_SCALPEL_MAP_H
#define SHERLOCK_SCALPEL_MAP_H

#include "common/scummsys.h"
#include "common/array.h"
#include "common/rect.h"
#include "common/str-array.h"
#include "sherlock/surface.h"
#include "sherlock/map.h"
#include "sherlock/resources.h"

namespace Sherlock {

class SherlockEngine;

namespace Scalpel {


struct MapEntry : Common::Point {
	int _translate;

	MapEntry() : Common::Point(), _translate(-1) {}

	MapEntry(int posX, int posY, int translate) : Common::Point(posX, posY), _translate(translate) {}
};

class MapPaths {
private:
	int _numLocations;
	Common::Array< Common::Array<byte> > _paths;

public:
	MapPaths();

	/**
	 * Load the data for the paths between locations on the map
	 */
	void load(int numLocations, Common::SeekableReadStream &s);

	/**
	 * Get the path between two locations on the map
	 */
	const byte *getPath(int srcLocation, int destLocation);
};

class ScalpelMap: public Map {
private:
	Common::Array<MapEntry> _points;	// Map locations for each scene
	Common::StringArray _locationNames;
	MapPaths _paths;
	Common::Array<Common::Point> _pathPoints;
	Common::Point _savedPos;
	Common::Point _savedSize;
	Surface _topLine;
	ImageFile *_mapCursors;
	ImageFile *_shapes;
	ImageFile *_iconShapes;
	WalkSequences _walkSequences;
	Point32 _lDrawnPos;
	int _point;
	bool _placesShown;
	int _cursorIndex;
	bool _drawMap;
	Surface _iconSave;
protected:
	/**
	 * Load data  needed for the map
	 */
	void loadData();

	/**
	 * Load and initialize all the sprites that are needed for the map display
	 */
	void setupSprites();

	/**
	 * Free the sprites and data used by the map
	 */
	void freeSprites();

	/**
	 * Draws an icon for every place that's currently known
	 */
	void showPlaces();

	/**
	 * Makes a copy of the top rows of the screen that are used to display location names
	 */
	void saveTopLine();

	/**
	 * Erases anything shown in the top line by restoring the previously saved original map background
	 */
	void eraseTopLine();

	/**
	 * Prints the name of the specified icon
	 */
	void showPlaceName(int idx, bool highlighted);

	/**
	 * Update all on-screen sprites to account for any scrolling of the map
	 */
	void updateMap(bool flushScreen);

	/**
	 * Handle moving icon for player from their previous location on the map to a destination location
	 */
	void walkTheStreets();

	/**
	 * Save the area under the player's icon
	 */
	void saveIcon(ImageFrame *src, const Common::Point &pt);

	/**
	 * Restore the area under the player's icon
	 */
	void restoreIcon();

	/**
	 * Handles highlighting map icons, showing their names
	 */
	void highlightIcon(const Common::Point &pt);
public:
	ScalpelMap(SherlockEngine *vm);
	virtual ~ScalpelMap() {}

	const MapEntry &operator[](int idx) { return _points[idx]; }

	/**
	 * Loads the list of points for locations on the map for each scene
	 */
	void loadPoints(int count, const int *xList, const int *yList, const int *transList);

	/**
	 * Load the sequence data for player icon animations
	 */
	void loadSequences(int count, const byte *seq);

	/**
	 * Show the map
	 */
	virtual int show();
};

} // End of namespace Scalpel

} // End of namespace Sherlock

#endif