You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.5 KiB
71 lines
2.5 KiB
package seng302.Model;
|
|
|
|
import seng302.Constants;
|
|
import seng302.Controllers.RaceController;
|
|
import java.awt.geom.Point2D;
|
|
|
|
import org.geotools.referencing.GeodeticCalculator;
|
|
import seng302.GPSCoordinate;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
/**
|
|
* Created by cbt24 on 6/03/17.
|
|
*/
|
|
public class ConstantVelocityRace extends Race {
|
|
|
|
/**
|
|
* Initialiser for a Race with constant velocity.
|
|
* @param startingBoats array of boats
|
|
* @param marks array of RaceMarkers that the boats need to pass in order to finish the course.
|
|
* @see Boat
|
|
* @see Leg
|
|
*/
|
|
|
|
public ConstantVelocityRace(BoatInRace[] startingBoats, ArrayList<Leg> marks, RaceController controller) {
|
|
super(startingBoats, marks, controller);
|
|
}
|
|
|
|
public ConstantVelocityRace(BoatInRace[] startingBoats, ArrayList<Leg> marks) {
|
|
super(startingBoats, marks);
|
|
}
|
|
|
|
protected void updatePosition(BoatInRace boat, int millisecondsElapsed) {
|
|
|
|
//distanceTravelled = velocity (nm p hr) * time taken to update loop
|
|
double distanceTravelled = boat.getVelocity() * millisecondsElapsed/3600000;
|
|
double totalDistanceTravelled = distanceTravelled + boat.getDistanceTravelledInLeg();
|
|
|
|
boolean finish = boat.getCurrentLeg().getName().equals("Finish");
|
|
if (!finish) {
|
|
|
|
boat.setDistanceTravelledInLeg(totalDistanceTravelled);
|
|
boat.setCurrentPosition(calculatePosition(boat.getCurrentLeg().getStartGraphCoordinate(),
|
|
totalDistanceTravelled, boat.calculateAzimuth()));
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param oldCoordinates GPS coordinates of the boat's starting position
|
|
* @param distanceTravelled distance in nautical miles
|
|
* @param azimuth boat's current direction. Value between -180 and 180
|
|
* @return
|
|
*/
|
|
public static GPSCoordinate calculatePosition(GPSCoordinate oldCoordinates, double distanceTravelled, double azimuth) {
|
|
|
|
//Find new coordinate using current heading and distance
|
|
|
|
GeodeticCalculator geodeticCalculator = new GeodeticCalculator();
|
|
|
|
Point2D startPoint = new Point2D.Double(oldCoordinates.getLongitude(), oldCoordinates.getLatitude());
|
|
geodeticCalculator.setStartingGeographicPoint(startPoint);
|
|
|
|
geodeticCalculator.setDirection(azimuth,distanceTravelled * Constants.NMToMetersConversion);
|
|
|
|
Point2D endPoint = geodeticCalculator.getDestinationGeographicPoint();
|
|
|
|
return new GPSCoordinate(endPoint.getY(), endPoint.getX());
|
|
}
|
|
|
|
} |