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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 TITANIC_MOTION_CONTROL_H
#define TITANIC_MOTION_CONTROL_H
#include "titanic/star_control/fmatrix.h"
namespace Titanic {
class CCamera;
class CErrorCode;
class FMatrix;
class FVector;
class SimpleFile;
struct CNavigationInfo {
double _initialVelocity;
double _minVelocity;
double _maxVelocity;
double _velocity;
double _acceleration;
double _rotationX;
double _rotationY;
double _rotationZ;
};
/**
* Handles doing a callback to the starfield to lock in a star after movement finishes
*/
class CCallbackHandler {
private:
CCamera *_owner;
FVector _vector;
public:
CCallbackHandler(CCamera *owner, const FVector &v) : _owner(owner), _vector(v) {
}
/**
* Locks in the star at the given position
*/
void apply();
};
class CMotionControl {
protected:
double _currVelocity;
double _incVelocity;
double _incAcceleration;
double _minVelocity;
double _maxVelocity;
double _rotationX;
double _rotationY;
double _rotationZ;
public:
int _lockCounter;
CCallbackHandler *_callback;
public:
CMotionControl(const CNavigationInfo *src);
virtual ~CMotionControl();
virtual void setMotion(const CNavigationInfo *src);
virtual void getMotion(CNavigationInfo *dest);
/**
* delete _starVector
*/
virtual void clear();
/**
* Set default values for CNavigationInfo
*/
virtual void reset();
/**
* Sets this CCallbackHandler
*/
virtual void setCallback(CCallbackHandler *callback);
/**
* Increases movement speed in forward direction
*/
virtual void accelerate();
/**
* Decreases movement speed in backward direction
*/
virtual void deccelerate();
/**
* Increase to full speed
*/
virtual void fullSpeed();
/**
* Completely stop
*/
virtual void stop();
/**
* Move the mover from an old position and orientation to a new
* position and orientation
*/
virtual void transitionBetweenPosOrients(const FVector &oldPos, const FVector &newPos,
const FMatrix &oldOrientation, const FMatrix &newOrientation) {}
/**
* Start a movement to a given specified destination
*/
virtual void moveTo(const FVector &srcV, const FVector &destV, const FMatrix &orientation) {}
/**
* First two vectors are used to form a new orientation that gets transitioned to from the old
* orientation m.
*/
virtual void transitionBetweenOrientations(const FVector &v1, const FVector &v2, const FVector &v3, const FMatrix &m) {}
/**
* Update the passed position and orientation matrix
*/
virtual void updatePosition(CErrorCode &errorCode, FVector &pos, FMatrix &orientation) {}
/**
* Load the class
*/
virtual void load(SimpleFile *file, int version = 0);
/**
* Save the class
*/
virtual void save(SimpleFile *file, int indent);
/**
* Increment tthe lock counter
*/
void incLockCount();
/**
* Decrement the lock counter
*/
void decLockCount();
/**
* Returns true if the lock counter is non-zero
*/
bool isLocked() const { return _lockCounter > 0; }
};
} // End of namespace Titanic
#endif /* TITANIC_MOTION_CONTROL_H */
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