Refactor menu notification, added TCTT message

core/src/main/kotlin/com/bombbird/terminalcontrol2/screens/MainMenu.kt

@@ -2,15 +2,16 @@ package com.bombbird.terminalcontrol2.screens
 
 import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.graphics.Texture
-import com.badlogic.gdx.utils.Align
 import com.bombbird.terminalcontrol2.global.*
 import com.bombbird.terminalcontrol2.screens.settings.MainSettings
-import com.bombbird.terminalcontrol2.ui.CustomDialog
+import com.bombbird.terminalcontrol2.ui.MenuNotificationManager
 import com.bombbird.terminalcontrol2.ui.addChangeListener
 import ktx.scene2d.*
 
 /** The main menu screen which extends [BasicUIScreen] */
 class MainMenu: BasicUIScreen() {
+    private val menuNotificationManager: MenuNotificationManager
+
     init {
         stage.actors {
             // UI Container
@@ -53,19 +54,7 @@ class MainMenu: BasicUIScreen() {
             }
         }
 
-        val prefs = Gdx.app.getPreferences(PREFS_FILE_NAME)
-        if (!prefs.getBoolean("beta-welcome-msg-shown", false)) {
-            // Show welcome message
-            CustomDialog("Welcome to the beta!", "Thank you for joining the beta! This is a very early version" +
-                    " of the game, so there are likely to be bugs and issues. Please report them by emailing" +
-                    " bombbirddev@gmail.com, or by clicking the \"Report Bug\" button in the info menu. Please include" +
-                    " as much information as possible, including the build version (in info menu), expected behaviour" +
-                    " and steps to reproduce the bug. Screenshots and video recordings are very helpful too.\n\n" +
-                    "Currently, there are only 2 default airports for testing, but rest assured that more will be" +
-                    " added as testing goes on. We hope you will enjoy the new multiplayer functionality, have fun!",
-                "", "Ok!", height = 800, width = 1800, fontAlign = Align.left).show(stage)
-            prefs.putBoolean("beta-welcome-msg-shown", true)
-            prefs.flush()
-        }
+        menuNotificationManager = MenuNotificationManager(stage)
+        menuNotificationManager.showMessages()
     }
 }

core/src/main/kotlin/com/bombbird/terminalcontrol2/ui/MenuNotificationManager.kt

@@ -0,0 +1,55 @@
+package com.bombbird.terminalcontrol2.ui
+
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.scenes.scene2d.Stage
+import com.badlogic.gdx.utils.Align
+import com.bombbird.terminalcontrol2.global.PREFS_FILE_NAME
+import ktx.collections.GdxArray
+
+class MenuNotificationManager(private val stage: Stage) {
+    private class MenuNotification(val prefKey: String, val title: String, val message: String, val height: Int, val width: Int)
+
+    /**
+     * Notification array, added in order of highest to lowest priority (i.e. if a notification is shown, all
+     * notifications added after will not be shown even if it has not been shown ever before to the user
+     */
+    private val notifications = GdxArray<MenuNotification>().apply {
+        add(
+            MenuNotification("beta-welcome-msg-shown", "Welcome to the beta!", "Thank you for" +
+                    " joining the beta! This is a very early version of the game, so there are likely to be bugs and" +
+                    " issues. Please report them by emailing bombbirddev@gmail.com, or by clicking the \"Report Bug\"" +
+                    " button in the Pause screen or info menu. Please include as much information as possible," +
+                    " including the build version (in info menu), expected behaviour and steps to reproduce the bug." +
+                    " Screenshots and video recordings are very helpful too.\n\nCurrently, there are 3 default airports" +
+                    " for testing, and more will be added as testing goes on. We hope you will enjoy the new" +
+                    " multiplayer functionality, have fun!", 800, 1800)
+        )
+        add(
+            MenuNotification("tctt-added", "New airport available!", "TCTT has been added to the" +
+                    " game. Custom datatag layouts have also been enabled: Settings => Datatag => Datatag style. As" +
+                    " always, please report bugs encountered by clicking the \"Report Bug\" button in the Pause" +
+                    " screen, or from the info menu. We hope you will enjoy the new map, have fun!", 600, 1400)
+        )
+    }
+
+    /** Shows the message that has not been shown before with the highest priority */
+    fun showMessages() {
+        val prefs = Gdx.app.getPreferences(PREFS_FILE_NAME)
+
+        for (i in 0 until notifications.size) {
+            val notif = notifications[i]
+            if (!prefs.getBoolean(notif.prefKey, false)) {
+                // Show welcome message
+                CustomDialog(notif.title, notif.message, "", "Ok!", height = notif.height,
+                    width = notif.width, fontAlign = Align.left).show(stage)
+                break
+            }
+        }
+
+        // All messages are marked as shown
+        for (i in 0 until notifications.size) {
+            prefs.putBoolean(notifications[i].prefKey, true)
+        }
+        prefs.flush()
+    }
+}