- Implemented saving and loading of a player model. High scores are now persistent, though only for one user.

- Created a JUnit test class to test the serialization. Should be useful for later tests.

src/model/playerModel/GameLog.java

@@ -1,7 +1,10 @@
 package model.playerModel;
 
-public class GameLog implements Comparable<GameLog> {
+import java.io.Serializable;
+
+public class GameLog implements Comparable<GameLog>, Serializable {
 	public static boolean SORT_BY_SCORE = true;
+	private static final long serialVersionUID = 1L;
 	private final int gameNum;
 
 	private final int score;

src/model/playerModel/Node.java

@@ -1,6 +1,8 @@
 package model.playerModel;
 
-public interface Node {
+import java.io.Serializable;
+
+public interface Node extends Serializable {
 
 	boolean axon();
 

src/model/playerModel/PlayerModel.java

@@ -1,6 +1,11 @@
 package model.playerModel;
 
 import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -31,8 +36,18 @@ public class PlayerModel implements Serializable {
 	}
 
 	public static PlayerModel load() {
-		// TODO Import the PlayerModel from a file.
-		return new PlayerModel();
+		FileInputStream fin = null;
+		ObjectInputStream oin = null;
+
+		try {
+			fin = new FileInputStream(PLAYER_MODEL_PATH);
+			oin = new ObjectInputStream(fin);
+			PlayerModel pm = (PlayerModel) oin.readObject();
+			oin.close();
+			return pm;
+		} catch (Exception e) {
+			return null;
+		}
 	}
 
 	private int GAME_COUNTER = 0;
@@ -170,8 +185,17 @@ public class PlayerModel implements Serializable {
 	}
 
 	public boolean save() {
-		// TODO Implement saving.
-		return false;
+		FileOutputStream fout = null;
+		ObjectOutputStream oout = null;
+		try {
+			fout = new FileOutputStream(PLAYER_MODEL_PATH);
+			oout = new ObjectOutputStream(fout);
+			oout.writeObject(this);
+			oout.close();
+			return true;
+		} catch (IOException ex) {
+			return false;
+		}
 	}
 
 	public void train(boolean[] example) {

src/model/playerModel/node/InputNode.java

@@ -4,6 +4,7 @@ import model.playerModel.Node;
 
 public class InputNode implements Node {
 
+	private static final long serialVersionUID = 1L;
 	private boolean dendrite = false;
 
 	@Override

src/model/playerModel/node/SigmoidNode.java

@@ -6,6 +6,8 @@ import model.playerModel.Node;
 
 public class SigmoidNode implements Node {
 
+	private static final long serialVersionUID = 1L;
+
 	// Training rate.
 	private final double A = .15;