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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 TITANIC_CAMERA_AUTO_MOVER_H
#define TITANIC_CAMERA_AUTO_MOVER_H
#include "titanic/star_control/fvector.h"
#include "titanic/star_control/orientation_changer.h"
#include "common/array.h"
namespace Titanic {
class CErrorCode;
class FMatrix;
const int nMoverTransitions = 32; // The number of vector transitions when doing a mover change is fixed
enum MoverState {NOT_ACTIVE=0,MOVING=1,DONE_MOVING=2};
/**
* Base class for automatic movement of the starview camera
*/
class CCameraAutoMover {
protected:
int _field4;
bool _active;
FVector _srcPos, _destPos;
double _distance;
FVector _posDelta;
bool _field34;
double _field38;
double _field3C;
int _field40;
int _field44;
int _field48;
int _field4C;
double _speeds[nMoverTransitions];
int _field54;
double _transitionPercent;
double _transitionPercentInc;
COrientationChanger _orientationChanger;
public:
CCameraAutoMover();
virtual ~CCameraAutoMover() {}
/**
* Clear src and dest orientation and set some default values for other fields
*/
void clear();
/**
* Setup a transition to from one position to another
*/
void setPath(const FVector &srcV, const FVector &destV);
/**
* Applys speeds to the mover. More than one application is usually done for several transitions
*/
virtual MoverState move(CErrorCode &errorCode, FVector &pos, FMatrix &orientation) { return DONE_MOVING; }
/**
* Given a distance to cover, determines a bunch of speeds for a gradual transition
* from one position to another (the mover). The speeds go from fast to slow
*/
virtual void calcSpeeds(int val1, int val2, float distance);
bool isActive() const { return _active; }
};
} // End of namespace Titanic
#endif /* TITANIC_CAMERA_AUTO_MOVER_H */
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