Sails command now listens to race to check if goal velocity is met

#story[1196]

racevisionGame/src/main/java/mock/model/commandFactory/SailsCommand.java

@@ -2,12 +2,15 @@ package mock.model.commandFactory;
 
 import mock.model.MockBoat;
 import mock.model.MockRace;
+import mock.model.NewPolars;
+import mock.model.VMG;
 
 import java.util.Observable;
 
 public class SailsCommand extends ObserverCommand {
     private boolean sailsOut;
     private double goalVelocity;
+    private double acceleration = 1;
 
     public SailsCommand(MockRace race, MockBoat boat, boolean sailsOut) {
         super(race, boat);
@@ -17,11 +20,26 @@ public class SailsCommand extends ObserverCommand {
     @Override
     public void execute() {
         this.boat.setSailsOut(this.sailsOut);
-
+        if(sailsOut) {
+            // Accelerate to VMG speed
+            double polarSpeed = NewPolars.calculateSpeed(race.getWindDirection(), race.getWindSpeed(), boat.getBearing());
+            VMG vmg = new VMG(polarSpeed, boat.getBearing());
+            goalVelocity = vmg.getSpeed();
+        } else {
+            // Decelerate to 0
+            goalVelocity = 0;
+        }
     }
 
     @Override
     public void update(Observable o, Object arg) {
-
+        if(sailsOut && boat.getCurrentSpeed() < goalVelocity) {
+            // Apply acceleration
+        } else if (!sailsOut && boat.getCurrentSpeed() > goalVelocity) {
+            // Apply deceleration
+        } else {
+            System.out.println(goalVelocity + " " + boat.getCurrentSpeed());
+            race.deleteObserver(this);
+        }
     }
 }