// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003-2005 The ScummVM-Residual Team (www.scummvm.org)
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2.1 of the License, or (at your option) any later version.
//
//  This library 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
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA

#ifndef WALKPLANE_H
#define WALKPLANE_H

#include "debug.h"
#include "vector3d.h"

#include <string>
#include <SDL.h>

#include "tinygl/gl.h"

class TextSplitter;

class Sector { 
public:
	void load(TextSplitter &ts);

	void setVisible(bool visible);

	const char *name() const { return _name.c_str(); }
	const int id() const { return _id; }
	const int type() const { return _type; } // FIXME: Implement type de-masking
	bool visible() const { return _visible; }
	bool isPointInSector(Vector3d point) const;

	Vector3d projectToPlane(Vector3d point) const;
	Vector3d projectToPuckVector(Vector3d v) const;

	Vector3d closestPoint(Vector3d point) const;

	// Interface to trace a ray to its exit from the polygon
	struct ExitInfo {
		Vector3d exitPoint;
		float angleWithEdge;
		Vector3d edgeDir;
	};
	void getExitInfo(Vector3d start, Vector3d dir,
			 struct ExitInfo *result);

private:
	int _numVertices, _id;

	std::string _name;
	int _type;
	bool _visible;
	Vector3d *_vertices;
	float _height;

	Vector3d _normal;
};
#endif