User modified keybindings are persistently saved

- Works on windows computers
- KeyFactory processes its own XML saving/loading
- Does not work with Jar yet
- Changed keyFactory to static temporarily to work with existing FXML loading architecture

#story[1197]

racevisionGame/src/main/java/visualiser/gameController/Keys/KeyFactory.java

@@ -1,5 +1,9 @@
 package visualiser.gameController.Keys;
 
+import java.beans.XMLDecoder;
+import java.beans.XMLEncoder;
+import java.io.*;
+import java.net.URISyntaxException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -62,4 +66,43 @@ public class KeyFactory {
         keyState.put(newKey, controlKey);
     }
 
+    /**
+     * Persistently saves the keybindings the user has set.
+     */
+    public void save(){
+        try {
+            XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(
+                    new FileOutputStream(getClass().getResource(
+                            "/visualiser/userSettings/keyFactory.xml")
+                            .toURI().getPath())));
+            encoder.writeObject(this.keyState);
+            encoder.close();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (URISyntaxException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Loads the persistently saved keybindings the user has set.
+     */
+    public void load(){
+        try {
+            XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(
+                    new FileInputStream(getClass().getResource(
+                            "/visualiser/userSettings/keyFactory.xml")
+                            .toURI().getPath())));
+
+            Map<String, ControlKey> savedKeyState
+                    = (Map<String, ControlKey>)decoder.readObject();
+            decoder.close();
+            this.keyState = savedKeyState;
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (URISyntaxException e) {
+            e.printStackTrace();
+        }
+    }
+
 }