Modified RaceClock to support arbitrary start times

- Amended RaceDataSource interface to require time instead of mark for calculating time.
#story[758]

visualiser/src/main/java/seng302/Controllers/RaceController.java

@@ -133,7 +133,7 @@ public class RaceController extends Controller {
 
         //Initialize save annotation array, fps listener, and annotation listeners
         //timezone
-        RaceClock raceClock = new RaceClock(raceData.getMark());
+        RaceClock raceClock = new RaceClock(raceData.getZonedDateTime());
         timeZone.setText(raceClock.getTimeZone());
         initializeFPS();
         initializeAnnotations();

visualiser/src/main/java/seng302/Controllers/StartController.java

@@ -103,8 +103,8 @@ public class StartController extends Controller {
         boatNameColumn.setCellValueFactory(cellData -> cellData.getValue().getName());
         boatCodeColumn.setCellValueFactory(new PropertyValueFactory<>("abbrev"));
         //timezone
-        raceClock = new RaceClock(raceData.getMark());
-        timeZoneTime.textProperty().bind(raceClock.timeProperty());
+        raceClock = new RaceClock(raceData.getZonedDateTime());
+        timeZoneTime.textProperty().bind(raceClock.timeStringProperty());
     }
 
 

visualiser/src/main/java/seng302/Mock/RegattaXMLReader.java

@@ -3,6 +3,7 @@ package seng302.Mock;
 import org.w3c.dom.Element;
 import org.w3c.dom.NodeList;
 import org.xml.sax.SAXException;
+import seng302.RaceDataSource;
 import seng302.XMLReader;
 
 import javax.xml.parsers.ParserConfigurationException;

visualiser/src/main/java/seng302/Model/RaceClock.java

@@ -6,48 +6,61 @@ import javafx.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
 import seng302.GPSCoordinate;
 
+import java.time.Duration;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoUnit;
 
 /**
  * Created by Gondr on 19/04/2017.
  */
 public class RaceClock {
-    private StringProperty time;
-    private DateTimeFormatter dateTimeFormatter;
-    private String timeZone;
+    private long lastTime;
     private ZoneId zoneId;
+    private ZonedDateTime time;
+    private StringProperty timeString;
 
-    public RaceClock(GPSCoordinate gpsCoordinate) {
+    public RaceClock(ZonedDateTime zonedDateTime) {
+        this.zoneId = zonedDateTime.getZone();
+        this.timeString = new SimpleStringProperty();
+    }
+
+    public static ZonedDateTime getCurrentZonedDateTime(GPSCoordinate gpsCoordinate) {
         TimeZoneLookup timeZoneLookup = new TimeZoneLookup();
         TimeZoneResult timeZoneResult = timeZoneLookup.getTimeZone(gpsCoordinate.getLatitude(), gpsCoordinate.getLongitude());
-        zoneId = ZoneId.of(timeZoneResult.getResult());
-        LocalDateTime localDateTime = LocalDateTime.now(zoneId);
-        ZonedDateTime zonedDateTime = localDateTime.atZone(zoneId);
-        dateTimeFormatter = DateTimeFormatter.ofPattern("dd-MM HH:mm:ss z");
-        // System.out.println(dateTimeFormatter.format(zonedDateTime));
-        time = new SimpleStringProperty(dateTimeFormatter.format(zonedDateTime));
-        DateTimeFormatter timeZoneFormatter = DateTimeFormatter.ofPattern("z");
-        timeZone = timeZoneFormatter.format(zonedDateTime);
+        ZoneId zone = ZoneId.of(timeZoneResult.getResult());
+        return LocalDateTime.now(zone).atZone(zone);
     }
 
+    /**
+     * Sets time to arbitrary zoned time.
+     * @param time arbitrary time with timezone.
+     */
+    public void setTime(ZonedDateTime time) {
+        this.time = time;
+        this.timeString.set(DateTimeFormatter.ofPattern("dd-MM HH:mm:ss z").format(time));
+        this.lastTime = System.currentTimeMillis();
+    }
+
+    /**
+     * Updates time by duration elapsed since last update.
+     */
     public void updateTime() {
-        LocalDateTime localDateTime = LocalDateTime.now(zoneId);
-        ZonedDateTime zonedDateTime = localDateTime.atZone(zoneId);
-        time.setValue(dateTimeFormatter.format(zonedDateTime));
-    }
-
-    public String getTime() {
-        return time.get();
-    }
-
-    public StringProperty timeProperty() {
-        return time;
+        this.time.plus(Duration.of(System.currentTimeMillis() - this.lastTime, ChronoUnit.MILLIS));
+        this.lastTime = System.currentTimeMillis();
     }
 
     public String getTimeZone() {
-        return timeZone;
+        return zoneId.toString();
+    }
+
+    public String getTimeString() {
+        return timeString.get();
+    }
+
+    public StringProperty timeStringProperty() {
+        return timeString;
     }
 }

visualiser/src/main/java/seng302/RaceDataSource.java

@@ -3,6 +3,7 @@ package seng302;
 import seng302.Model.BoatInRace;
 import seng302.Model.Leg;
 
+import java.time.ZonedDateTime;
 import java.util.List;
 
 /**
@@ -13,7 +14,7 @@ public interface RaceDataSource {
     List<Leg> getLegs();
     List<GPSCoordinate> getBoundary();
 
-    GPSCoordinate getMark();
+    ZonedDateTime getZonedDateTime();
     GPSCoordinate getMapTopLeft();
     GPSCoordinate getMapBottomRight();
 }

visualiser/src/main/java/seng302/RaceXMLReader.java

@@ -4,12 +4,11 @@ import javafx.scene.paint.Color;
 import org.w3c.dom.Element;
 import org.w3c.dom.NodeList;
 import org.xml.sax.SAXException;
-import seng302.Model.BoatInRace;
-import seng302.Model.Leg;
-import seng302.Model.Marker;
+import seng302.Model.*;
 
 import javax.xml.parsers.ParserConfigurationException;
 import java.io.IOException;
+import java.time.ZonedDateTime;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -272,8 +271,8 @@ public class RaceXMLReader extends XMLReader implements RaceDataSource {
         return legs;
     }
 
-    public GPSCoordinate getMark() {
-        return mark;
+    public ZonedDateTime getZonedDateTime() {
+        return RaceClock.getCurrentZonedDateTime(mark);
     }
 
     public GPSCoordinate getStartPt1() {