Extracted classes from server.js

Webservice/Player.js

@@ -0,0 +1,16 @@
+class Player {
+    constructor(socketUsername) {
+        this.socketUsername = socketUsername;
+        this.position = 0;
+        this.isAlive = true;
+    }
+
+    move(amount) {
+        this.position += amount;
+        if (this.position === 15) {
+            // todo: win
+        }
+    }
+}
+
+module.exports = Player;