Implemented runCommand method in VMGCommand and TackGybeCommand classes. Both classes currently rely on the MockRace class so changes will be required when MockRace is refactored.

#story[1097]

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

@@ -1,7 +1,9 @@
 package mock.model.commandFactory;
 
 import mock.model.MockBoat;
+import mock.model.MockRace;
 
 public interface CommandFactory {
-    void runCommand(MockBoat boat);
+
+    void runCommand(MockBoat boat, MockRace race);
 }

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

@@ -1,15 +1,21 @@
 package mock.model.commandFactory;
 
 import mock.model.MockBoat;
+import mock.model.MockRace;
+import mock.model.VMG;
 
 /**
  * Created by David on 2/08/2017.
  */
 public class TackGybeCommand implements CommandFactory {
 
-
+    //The refactoring of MockRace will require changes to be made
     @Override
-    public void runCommand(MockBoat boat) {
-        
+    public void runCommand(MockBoat boat, MockRace race) {
+        VMG newVMG = race.calculateVMG(boat);
+        VMG boatVMG = new VMG(boat.getCurrentSpeed(), boat.getBearing());
+        if(race.improvesVelocity(boatVMG, newVMG, boat.calculateBearingToNextMarker())){
+            boat.setVMG(newVMG);
+        }
     }
 }

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

@@ -0,0 +1,19 @@
+package mock.model.commandFactory;
+
+import mock.model.MockBoat;
+import mock.model.MockRace;
+import mock.model.VMG;
+import shared.model.Bearing;
+
+/**
+ * Created by David on 2/08/2017.
+ */
+public class VMGCommand implements CommandFactory {
+
+    //The refactoring of MockRace will require changes to be made
+    @Override
+    public void runCommand(MockBoat boat, MockRace race) {
+        VMG newVMG = race.calculateVMG(boat);
+        boat.setVMG(newVMG);
+    }
+}