* Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
* BSD-style license. See OpenTrafficSim License.
*
* @version $Revision$, $LastChangedDate$, by $Author$, initial version 22 mei 2018
* @author Alexander Verbraeck
* @author Peter Knoppers
* @author Wouter Schakel
*/
public interface VehicleModel
{
/** No bounds. */
VehicleModel NONE = new VehicleModel()
{
@Override
public Acceleration boundAcceleration(final Acceleration acceleration, final LaneBasedGTU gtu)
{
return acceleration;
}
/** {@inheritDoc} */
@Override
public String toString()
{
return "VehicleModel [None]";
}
};
/** Acceleration bounded by GTU min and max acceleration. */
VehicleModel MINMAX = new VehicleModel()
{
@Override
public Acceleration boundAcceleration(final Acceleration acceleration, final LaneBasedGTU gtu)
{
return acceleration.si > gtu.getMaximumDeceleration().si
? (acceleration.si < gtu.getMaximumAcceleration().si ? acceleration : gtu.getMaximumAcceleration())
: gtu.getMaximumDeceleration();
}
/** {@inheritDoc} */
@Override
public String toString()
{
return "VehicleModel [MinMax]";
}
};
/**
* Returns a bounded acceleration.
* @param acceleration Acceleration; intended acceleration
* @param gtu LaneBasedGTU; gtu
* @return Acceleration; possible acceleration
*/
Acceleration boundAcceleration(Acceleration acceleration, LaneBasedGTU gtu);
/**
* GTU mass.
* @return GTU mass
*/
default Mass getMass()
{
return null;
}
/**
* Moment of inertia about z-axis and center point of gravity.
* @return moment of inertia about z-axis
*/
default double getMomentOfInertiaAboutZ()
{
return 0;
}
/**
* Defines (fixed) mass and moment of inertia about z-axis.
*
* Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
*
* BSD-style license. See OpenTrafficSim License.
*
* @version $Revision$, $LastChangedDate$, by $Author$, initial version 8 jan. 2019
* @author Alexander Verbraeck
* @author Peter Knoppers
* @author Wouter Schakel
*/
class MassBased implements VehicleModel
{
/** Mass. */
private final Mass mass;
/** Moment of inertia about z-axis. */
private final double momentOfInertiaAboutZ;
/**
* @param mass Mass; mass
* @param momentOfInertiaAboutZ double; moment of inertia about z-axis
*/
public MassBased(final Mass mass, final double momentOfInertiaAboutZ)
{
this.mass = mass;
this.momentOfInertiaAboutZ = momentOfInertiaAboutZ;
}
/** {@inheritDoc} */
@Override
public Acceleration boundAcceleration(final Acceleration acceleration, final LaneBasedGTU gtu)
{
return MINMAX.boundAcceleration(acceleration, gtu);
}
/** {@inheritDoc} */
@Override
public Mass getMass()
{
return this.mass;
}
/** {@inheritDoc} */
@Override
public double getMomentOfInertiaAboutZ()
{
return this.momentOfInertiaAboutZ;
}
}
}