railMovementDriver.h

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/*******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include <matrix/vlVector.h>

class DtRailSegment;
class DtVrfMovingObjectStateRepository;
class DtRailMovementController;
class DtVrfObject;


#include "vrfmodel/vrfmodelDefines.h"
#include "railObstructionFinder.h"
#include "railObstructionInfo.h"
#include "railObstructionAnalyzer.h"
class DT_DLL_vrfmodel DtRailMovementDriver
{
public:

   DtRailMovementDriver(DtRailMovementController * parentController,bool drivingOnLeft, bool allowPassing, 
      double lookAhead, double hitTime);

   virtual ~DtRailMovementDriver();

   virtual void setEntityState(DtVrfMovingObjectStateRepository* state);

   virtual double findDrivingSpeed(bool useAcceleration, DtVrfObject* convoyTgt = 0, const double followDist = 0.0, const bool useCatchUpSpeed = true); 

   virtual double calculateCurrentBrakingDistance() const;

   virtual void setCurrentSegment(DtRailSegment * seg);
   virtual DtRailSegment* currentSegment();

   virtual void setTurnSpeed(const double speed);
   virtual const double turnSpeed() const;   

   virtual double determineSpeedGivenObs(const double drivingSpeed, 
      const double hitTime, const DtRailObstructionPtr& obs) const;
   

   virtual bool isSwitchingLeft(const int current, const int passing) const;
   virtual bool isSwitchingRight(const int current, const int passing) const;

   virtual int findClosestLaneToDrivingLane(const int current, const int driving, const DtRailSegment* road) const;
   
   virtual bool isObstructionConvoyTarget(const int lane, DtRailObstructionPtr &anObstruction, DtString convoyTgt) const;
   
   virtual bool isLaneObstructed(const int lane, DtRailObstructionAnalyzer &analyzer,
      bool checkForwardOnly = false) const;

   virtual bool isObstructionStoppedOrSlow(double speed, DtRailObstructionPtr& obs) const;
   
   virtual bool isDrivingLane(const int current, const int driving) const;
  

   virtual int findOpenLeftLane(const int lane, const DtRailSegment* road, DtRailObstructionAnalyzer &analyzer) const;
   
   virtual int findOpenRightLane(const int lane, const DtRailSegment* road, DtRailObstructionAnalyzer &analyzer) const;
 
   virtual int findOpenLane(const int lane, const int passing, const DtRailSegment* road,
      DtRailObstructionAnalyzer &analyzer, bool checkOpposite = false) const;

   virtual bool isTooCloseToObs(const DtRailObstructionPtr &nextObs, double bvRadiusSq ) const;

   virtual bool allowPassing()
   {
      return myAllowPassing;
   }

protected:

   DtRailMovementDriver();

   DtRailMovementDriver(
      const DtRailMovementDriver& orig);

   DtRailMovementDriver& operator=(
      const DtRailMovementDriver& orig);
   
protected:

   bool myDrivingOnLeft;
   bool myAllowPassing;

   double      myNearDistanceSq;
   bool        myNearTurnPoint;
   double      myTurnSpeed;
   double      myHitTime;
   double      myLookAheadDistance;
                                     
   DtVrfMovingObjectStateRepository* myMovingObjectStateRepository;
   DtRailMovementController * myController;
   DtRailSegment * myCurrentSegment;
};