some comments

game/lib/details_page/details_page.dart

@@ -5,6 +5,9 @@ import 'package:google_sign_in/google_sign_in.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:game/details_page/dropdown_widget.dart';
 
+/**
+ * The details page. Allows the user to enter their details. Follows from the RegisterPageWidget.
+ */
 class DetailsPageWidget extends StatefulWidget {
   DetailsPageWidget(
       {Key? key,

game/lib/loading_page/loading_page.dart

@@ -2,6 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:game/navigation_page/bottom_navbar.dart';
 import 'package:game/splash_page/splash_page.dart';
 
+/**
+ * The loading page. Used to check if the user is already signed in. Directs the user to the corresponding page (HomePage vs SplashPage)
+ */
 class LoadingPageWidget extends StatelessWidget {
   final Future<bool> relogResult;
   LoadingPageWidget(this.relogResult, {Key? key}) : super(key: key);

game/lib/progress_indicators/circular_progress_indicator.dart

@@ -1,5 +1,8 @@
 import 'package:flutter/material.dart';
 
+/**
+ * A circular progress indicator. Used for loading screens.
+ */
 class CircularIndicator extends StatelessWidget {
   const CircularIndicator({super.key});
 

game/lib/register_page/register_page.dart

@@ -4,7 +4,12 @@ import 'package:game/details_page/details_page.dart';
 import 'package:google_sign_in/google_sign_in.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 
+/**
+ * The register page. Allows the user to select their enrollment type.
+ * Comes from the SplashPageWidget.
+ */
 class RegisterPageWidget extends StatefulWidget {
+  // The user's Google account. Must be kept track of to sign in.
   final GoogleSignInAccount? user;
   final String? idToken;
   RegisterPageWidget(

game/lib/splash_page/splash_page.dart

@@ -8,6 +8,9 @@ import 'package:game/register_page/register_page.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:game/navigation_page/bottom_navbar.dart';
 
+/**
+ * The splash page. Allows the user to sign in with Google or continue as a guest. SplashPageWidget is skipped if the user is already signed in (account already exists).
+ */
 class SplashPageWidget extends StatelessWidget {
   SplashPageWidget({Key? key}) : super(key: key);
   final scaffoldKey = GlobalKey<ScaffoldState>();