Resizing maps to time taking now works #story[1323]

racevisionGame/src/main/java/mock/xml/RaceXMLCreator.java

@@ -1,17 +1,16 @@
 package mock.xml;
 
+import mock.model.NewPolars;
 import org.xml.sax.SAXException;
 import shared.dataInput.RaceXMLReader;
 import shared.enums.XMLFileType;
 import shared.exceptions.InvalidRaceDataException;
 import shared.exceptions.XMLReaderException;
+import shared.model.Bearing;
 import shared.model.CompoundMark;
 import shared.model.Constants;
 import shared.model.GPSCoordinate;
-import shared.xml.Race.XMLCompoundMark;
-import shared.xml.Race.XMLLimit;
-import shared.xml.Race.XMLMark;
-import shared.xml.Race.XMLRace;
+import shared.xml.Race.*;
 import shared.xml.XMLUtilities;
 
 import javax.xml.bind.JAXBException;
@@ -20,6 +19,8 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Collections;
+import java.util.Comparator;
 
 /**
  * Helper Class for creating a Race XML
@@ -125,6 +126,114 @@ public class RaceXMLCreator {
         }
     }
 
+
+    /**
+     * Rotates the race in a specified direction.
+     * @param s xml file name or contents.
+     * @param windSpeed speed that the wind is at.
+     * @param milliseconds time the race should take at fastest
+     * @return the new xml file as a string
+     * @throws XMLReaderException if the xml is not readable
+     * @throws InvalidRaceDataException if the race is invalid
+     */
+    public static String scaleRaceSize(String s, double windSpeed, double milliseconds) throws XMLReaderException, InvalidRaceDataException {
+
+        try {
+
+            XMLRace race = XMLUtilities.xmlToClass(
+                    s,
+                    RaceXMLCreator.class.getClassLoader().getResource("mock/mockXML/schema/raceSchema.xsd"),
+                    XMLRace.class);
+
+            scaleRace(race, windSpeed, milliseconds);
+
+            return XMLUtilities.classToXML(race);
+
+        } catch (ParserConfigurationException | IOException | SAXException | JAXBException e) {
+            throw new InvalidRaceDataException("Could not parse or marshall race data file.", e);
+        }
+    }
+
+    public static double getRaceLength(XMLRace race, double averageSpeed){
+        double raceRoundingTime = 5000; //5 seconds to round a mark
+        double totalDistance = 0; //in nautical miles
+        XMLMark prevMark = null;
+        double avgSpeed = averageSpeed / 60 / 60; //knots is /hour
+        for (XMLCorner corner : race.getCompoundMarkSequence().getCorner()){
+            int index = corner.getCompoundMarkID() - 1;
+            XMLCompoundMark cm = race.getCourse().getCompoundMark().get(index);
+            XMLMark mark = cm.getMark().get(0);
+            if (prevMark != null){
+                System.out.println(getDistance(mark, prevMark));
+                totalDistance += getDistance(mark, prevMark);
+            }
+            prevMark = mark;
+        }
+        //total time = total dist / average speed + race extra rounding time * number of marks
+        double totalTime = totalDistance / avgSpeed * 1000 +
+                raceRoundingTime * race.getCompoundMarkSequence().getCorner().size();
+        return totalTime;
+    }
+
+    private static double getDistance(XMLMark a, XMLMark b){
+        GPSCoordinate coorda = new GPSCoordinate(a.getTargetLat(), a.getTargetLng());
+        GPSCoordinate coordb = new GPSCoordinate(b.getTargetLat(), b.getTargetLng());
+        return GPSCoordinate.calculateDistanceNauticalMiles(coorda, coordb);
+    }
+
+
+    private static void scaleRace(XMLRace race, double windSpeed, double milliseconds) {
+        GPSCoordinate center = getCenter(race);
+        //sort the compound marks
+        Collections.sort(race.getCompoundMarkSequence().getCorner(), (c1, c2) -> {
+            if (c1.getSeqID() < c2.getSeqID()) return -1;
+            if (c1.getSeqID() > c2.getSeqID()) return 1;
+            return 0;
+        });
+        //sort compound mark id
+        Collections.sort(race.getCourse().getCompoundMark(), (c1, c2) -> {
+            if (c1.getCompoundMarkID() < c2.getCompoundMarkID()) return -1;
+            if (c1.getCompoundMarkID() > c2.getCompoundMarkID()) return 1;
+            return 0;
+        });
+        //get the fastest time it would take.
+        double bestUpWindSpeed = NewPolars.setBestVMG(Bearing.fromDegrees(0), windSpeed, Bearing.fromDegrees(45)).getSpeed();
+        double bestDownWindSpeed = NewPolars.setBestVMG(Bearing.fromDegrees(0), windSpeed, Bearing.fromDegrees(45)).getSpeed();
+        double averageSpeed = (bestDownWindSpeed + bestUpWindSpeed) / 2;
+        double raceApproximateTime = getRaceLength(race, averageSpeed);
+        double scale = milliseconds / raceApproximateTime;
+        for (XMLCorner cm: race.getCompoundMarkSequence().getCorner()){
+            int index = cm.getCompoundMarkID() - 1;
+            XMLCompoundMark mark = race.getCourse().getCompoundMark().get(index);
+            for (XMLMark m: mark.getMark()){
+                scalePoint(m, center, scale);
+            }
+        }
+        for (XMLLimit limit: race.getCourseLimit().getLimit()){
+            scalePoint(limit, center, scale);
+        }
+    }
+
+
+
+    private static void scalePoint(XMLMark mark, GPSCoordinate center, double scale){
+        double latDiff = mark.getTargetLat() - center.getLatitude();
+        double longDiff = mark.getTargetLng() - center.getLongitude();
+        double latScaled = latDiff * scale + center.getLatitude();
+        double longScaled = longDiff * scale + center.getLongitude();
+        mark.setTargetLat(latScaled);
+        mark.setTargetLng(longScaled);
+    }
+
+    private static void scalePoint(XMLLimit limit, GPSCoordinate center, double scale){
+        double latDiff = limit.getLat() - center.getLatitude();
+        double longDiff = limit.getLon() - center.getLongitude();
+        double latScaled = latDiff * scale + center.getLatitude();
+        double longScaled = longDiff * scale + center.getLongitude();
+        limit.setLat(latScaled);
+        limit.setLon(longScaled);
+    }
+
     /**
      * Converts a Race.CourseLimit.Limit to a GPS coordinate
      * @param limit limit to convert