Merge branch 'master' of https://git.frank-ebner.de/matt/RothenburgAR

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>      
+<colors>
+    <color name="t_color_name_light_blue">
+        <base color="#03A9F4"/>
+        <light color="#E1F5FE"/>
+        <dark color="#0277BD"/>
+        <transparency value="0.75"/>
+    </color>
+    <color name="t_color_name_light_green">
+        <base color="#8BC34A"/>
+        <light color="#F1F8E9"/>
+        <dark color="#558B2F"/>
+        <transparency value="0.75"/>
+    </color>
+    <color name="t_color_name_red">
+        <base color="#F44336"/>
+        <light color="#FFEBEE"/>
+        <dark color="#C62828"/>
+        <transparency value="0.75"/>
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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<localization>
+  <language key="de" name="Deutsch" flagPath="localization/flag_de"/>
+  <language key="en" name="English" flagPath="localization/flag_uk_us" default="true"/>
+
+  <entry name="t_color_name_light_blue">
+    <text lang="de" type="inline" value="Hellblau"/>
+    <text lang="en" type="inline" value="Light Blue"/>
+  </entry>
+  <entry name="t_color_name_light_green">
+    <text lang="de" type="inline" value="Hellgrün"/>
+    <text lang="en" type="inline" value="Light Green"/>
+  </entry>
+  <entry name="t_color_name_red">
+    <text lang="de" type="inline" value="Rot"/>
+    <text lang="en" type="inline" value="Red"/>
+  </entry>
+  <entry name="t_tutorial_reticule">
+    <text lang="de" type="inline" value="Exponat anvisieren"/>
+    <text lang="en" type="inline" value="Aim at exhibit"/>
+  </entry>
+  <entry name="t_tutorial_settings">
+    <text lang="de" type="inline" value="Einstellungen öffnen"/>
+    <text lang="en" type="inline" value="Open settings"/>
+  </entry>
+  <entry name="t_tutorial_select">
+    <text lang="de" type="inline" value="Exponat auswählen"/>
+    <text lang="en" type="inline" value="Select exhibit"/>
+  </entry>
+  <entry name="t_menu_button_color">
+    <text lang="de" type="inline" value="Farbe"/>
+    <text lang="en" type="inline" value="Color"/>
+  </entry>
+  <entry name="t_menu_button_language">
+    <text lang="de" type="inline" value="Sprache"/>
+    <text lang="en" type="inline" value="Language"/>
+  </entry>
+  <entry name="t_menu_button_fontsize">
+    <text lang="de" type="inline" value="Textgröße"/>
+    <text lang="en" type="inline" value="Font size"/>
+  </entry>
+  <entry name="t_menu_button_tutorial">
+    <text lang="de" type="inline" value="Anleitung"/>
+    <text lang="en" type="inline" value="Tutorial"/>
+  </entry>
+  <entry name="t_menu_button_credits">
+    <text lang="de" type="inline" value="Credits"/>
+    <text lang="en" type="inline" value="Credits"/>
+  </entry>
+  <entry name="t_menu_button_update">
+    <text lang="de" type="inline" value="Update"/>
+    <text lang="en" type="inline" value="Update"/>
+  </entry>
+  <entry name="t_languageselect_Default">
+    <text lang="de" type="inline" value="Standard"/>
+    <text lang="en" type="inline" value="Default"/>
+  </entry>
+  <entry name="t_languageselect_Large">
+    <text lang="de" type="inline" value="Groß"/>
+    <text lang="en" type="inline" value="Large"/>
+  </entry>
+  <entry name="t_updater_header">
+    <text lang="de" type="inline" value="Updates"/>
+    <text lang="en" type="inline" value="Updates"/>
+  </entry>
+  <entry name="t_updater_updating">
+    <text lang="de" type="inline" value="Es wurden Inhaltsupdates gefunden. Bitte warten sie, bis diese heruntergeladen wurden."/>
+    <text lang="en" type="inline" value="Updates have been found. Please wait until they finished downloading."/>
+  </entry>
+  <entry name="t_updater_confirmUpdatesDialog">
+    <text lang="de" type="inline" value="Es wurden Inhaltsupdates gefunden. Hierbei handelt es sich um mehrere Megabytes an Daten. Wollen Sie diese mit mobilen Daten herunterladen?"/>
+    <text lang="en" type="inline" value="Updates have been found. This is several Megabytes of data. Do you want to download these using mobile data?"/>
+  </entry>
+  <entry name="t_updater_confirmUpdates">
+    <text lang="de" type="inline" value="Trotzdem herunterladen"/>
+    <text lang="en" type="inline" value="Download anyway"/>
+  </entry>
+  <entry name="t_updater_completed">
+    <text lang="de" type="inline" value="Updates heruntergeladen."/>
+    <text lang="en" type="inline" value="Updates downloaded."/>
+  </entry>
+  <entry name="t_updater_applyUpdates">
+    <text lang="de" type="inline" value="Updates anwenden"/>
+    <text lang="en" type="inline" value="Apply updates"/>
+  </entry>
+  <entry name="t_updater_failed">
+    <text lang="de" type="inline" value="Beim Herunterladen des Updates ist ein Fehler aufgetreten. Bitte versuchen Sie es später erneut."/>
+    <text lang="en" type="inline" value="An error occurred during the update. Please try again later."/>
+  </entry>
+  <entry name="t_updater_retry">
+    <text lang="de" type="inline" value="Erneut versuchen"/>
+    <text lang="en" type="inline" value="Try again"/>
+  </entry>
+  <entry name="t_updater_alreadyUpToDate">
+    <text lang="de" type="inline" value="Die Anwendungsinhalte sind auf dem neuesten Stand."/>
+    <text lang="en" type="inline" value="The application content is up to date."/>
+  </entry>
+  <entry name="t_updater_alreadyUpToDateOK">
+    <text lang="de" type="inline" value="OK"/>
+    <text lang="en" type="inline" value="OK"/>
+  </entry>
+  <entry name="t_updater_noInternet">
+    <text lang="de" type="inline" value="Die Anwendung verfügt aktuell über keinen Internetzugriff. Stellen Sie sicher, dass Ihr Gerät über eine Internetverbindung verfügt und starten Sie die App neu."/>
+    <text lang="en" type="inline" value="The application currently has no Internet access. Make sure your device has an internet connection and restart the app."/>
+  </entry>
+  <entry name="t_credits">
+    <text lang="de" type="file" value="localization/t_credits_de"/>
+    <text lang="en" type="file" value="localization/t_credits_en"/>
+  </entry>
+  <entry name="t_credits_version">
+    <text lang="de" type="file" value="localization/t_credits_version"/>
+    <text lang="en" type="file" value="localization/t_credits_version"/>
+  </entry>
+</localization>

Assets/Resources/localization.xml.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 4652cedf37d935e46a26d6f44630a456
+timeCreated: 1545484620
+licenseType: Free
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Resources/localization/flag_de.png.meta

@@ -1,6 +1,6 @@
 fileFormatVersion: 2
-guid: fdb1754a808f9d445872e8ccd06f961f
+guid: 25491ea9c6e1b7244b2d9cacdd154d8f
-timeCreated: 1497822839
+timeCreated: 1545490981
 licenseType: Free
 TextureImporter:
   fileIDToRecycleName: {}
@@ -31,27 +31,27 @@ TextureImporter:
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
-    filterMode: 1
+    filterMode: -1
-    aniso: 1
+    aniso: -1
     mipBias: -1
-    wrapU: 1
+    wrapU: -1
-    wrapV: 1
+    wrapV: -1
-    wrapW: 1
+    wrapW: -1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
-  spriteMode: 1
+  spriteMode: 0
   spriteExtrude: 1
   spriteMeshType: 1
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
-  spritePixelsToUnits: 1
+  spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
   alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   maxTextureSizeSet: 0
   compressionQualitySet: 0
@@ -77,6 +77,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   - buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0

Assets/Resources/localization/flag_jp.png.meta

@@ -1,6 +1,6 @@
 fileFormatVersion: 2
-guid: 35b33f8eeb1cca541b1c6fc0c236fa0a
+guid: 2c05577f49b120f4b8ee7b9733af5ad2
-timeCreated: 1497822838
+timeCreated: 1545490982
 licenseType: Free
 TextureImporter:
   fileIDToRecycleName: {}
@@ -31,27 +31,27 @@ TextureImporter:
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
-    filterMode: 1
+    filterMode: -1
-    aniso: 1
+    aniso: -1
     mipBias: -1
-    wrapU: 1
+    wrapU: -1
-    wrapV: 1
+    wrapV: -1
-    wrapW: 1
+    wrapW: -1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
-  spriteMode: 1
+  spriteMode: 0
   spriteExtrude: 1
   spriteMeshType: 1
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
-  spritePixelsToUnits: 1
+  spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
   alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   maxTextureSizeSet: 0
   compressionQualitySet: 0
@@ -77,6 +77,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   - buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0

Assets/Resources/localization/flag_uk_us.png.meta

@@ -1,6 +1,6 @@
 fileFormatVersion: 2
-guid: 538cea92ef30ede40a354bae3e7eaeda
+guid: c64690fd7ce0e5c4a8061babcfa165a6
-timeCreated: 1497822838
+timeCreated: 1545490982
 licenseType: Free
 TextureImporter:
   fileIDToRecycleName: {}
@@ -31,27 +31,27 @@ TextureImporter:
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
-    filterMode: 1
+    filterMode: -1
-    aniso: 1
+    aniso: -1
     mipBias: -1
-    wrapU: 1
+    wrapU: -1
-    wrapV: 1
+    wrapV: -1
-    wrapW: 1
+    wrapW: -1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
-  spriteMode: 1
+  spriteMode: 0
   spriteExtrude: 1
   spriteMeshType: 1
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
-  spritePixelsToUnits: 1
+  spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
   alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   maxTextureSizeSet: 0
   compressionQualitySet: 0
@@ -77,6 +77,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   - buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0

Assets/Resources/localization/t_credits_de.txt

@@ -0,0 +1,17 @@
+Diese Anwendung wurde als Projektarbeit im 6. Semester von Studenten der Hochschule für angewandte Wissenschaften Würzburg-Schweinfurt erstellt.
+
+Entwicklerteam:
+René Ziegler
+Matthias Kleinhenz
+Alexander Frühwald
+
+Betreuer FHWS:
+Prof. Dr. Frank Deinzer
+Toni Fetzer
+
+Besonderer Dank für die Aufnahme der 3D-Scans geht an Frank Ebner.
+
+Verantwortlicher im Auftrag des Reichstadtmuseums in Rothenburg:
+Dr. Hellmuth Möhring
+
+Die in dieser App verwendeten Icons sind Teil der Google Material Icon Library, abrufbar unter https://material.io/icons/ und sind lizenziert unter der Apache License Version 2.0.

Assets/Resources/localization/t_credits_de.txt.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 5e33d40fce62ea349af0e5cb81a4058b
+timeCreated: 1545490982
+licenseType: Free
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Resources/localization/t_credits_en.txt

@@ -0,0 +1,17 @@
+This app has been created as a project by 6th semester students at the University of Applied Sciences Wurzburg-Schweinfurt.
+
+Developer Team:
+René Ziegler
+Matthias Kleinhenz
+Alexander Frühwald
+
+Project Monitoring FHWS:
+Prof. Dr. Frank Deinzer
+Toni Fetzer
+
+Special thanks for taking the 3D-Scans go to Frank Ebner.
+
+Responsible on behalf of the Reichstadtmuseum of Rothenburg:
+Dr. Hellmuth Moehring
+
+Icons used in this App are part of the Google Material Icon Library, available at https://material.io/icons/ and are licensed under the Apache License Version 2.0.

Assets/Resources/localization/t_credits_en.txt.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 7e87879c9f3136b4a8527b183fd599c8
+timeCreated: 1545490982
+licenseType: Free
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Resources/localization/t_credits_version.txt

@@ -0,0 +1 @@
+Version RC3 - 05.10.2017

Assets/Resources/localization/t_credits_version.txt.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: fe180226794a33a4fb817bbc80b657c6
+timeCreated: 1545490982
+licenseType: Free
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/RothenburgAR/Editor/Test/ExhibitionXmlPreloaderTest.cs

@@ -79,10 +79,6 @@ namespace RothenburgAR
 
             Assert.NotNull(testExhibit.Description);
             Assert.IsTrue(testExhibit.Title.HasValue);
-
-            Assert.AreEqual(40f, testExhibit.Title.Value.FontSize);
-            Assert.AreEqual(45f, testExhibit.Title.Value.BoxHeight);
-            Assert.AreEqual(200f, testExhibit.Title.Value.BoxWidth);
         }
     }
 }

Assets/RothenburgAR/Scripts/AppInitializerBehaviour.cs

@@ -2,6 +2,7 @@
 using RothenburgAR.Exhibition;
 using RothenburgAR.PointOfInterest;
 using RothenburgAR.UI;
+using RothenburgAR.Updater;
 using UnityEngine;
 using Vuforia;
 
@@ -11,10 +12,20 @@ namespace RothenburgAR
     {
         public Camera UICamera;
         public Camera UIObjectCamera;
+        private LogFileHandler logFileHandler;
 
         // Use this for initialization
         void Start()
         {
+#if !UNITY_EDITOR
+            logFileHandler = new LogFileHandler();
+#else
+            Debug.Log("Found Unity Editor; Disabled logging into file.");
+#endif
+            //OBJLoader.defaultShader = Shader.Find("Standard (Specular setup)")
+            OBJLoader.defaultShader = Shader.Find("Standard");
+            OBJLoader.defaultMaterial = new Material(OBJLoader.defaultShader);
+
             LanguageManager.Instance.LoadLanguagesFromXml();
             UIColorSchemeManager.Instance.Initialize();
 
@@ -23,14 +34,12 @@ namespace RothenburgAR
             UIManager.Instance.Initialize();
             UIManager.Instance.UICamera = UICamera;
             UIManager.Instance.UIObjectCamera = UIObjectCamera;
-            UIManager.Instance.InitStartView();
+
+            StartCoroutine(UIManager.Instance.InitStartView());
 
             InputManager.Instance.Initialize();
-            var init = DisplayManager.Instance;
+            var initDisplayManagerSingleton = DisplayManager.Instance;
-
+            var initUpdaterSingleton = UpdateManager.Instance;
-            //OBJLoader.defaultShader = Shader.Find("Standard (Specular setup)")
-            OBJLoader.defaultShader = Shader.Find("Standard");
-            OBJLoader.defaultMaterial = new Material(OBJLoader.defaultShader);
         }
 
         void InitializeData()
@@ -54,5 +63,10 @@ namespace RothenburgAR
                               " Exhibitions of Path " + currentPaths + " of " + maxPaths + " paths.</color>");
                 });
         }
+
+        private void OnDestroy()
+        {
+            VuforiaARController.Instance.UnregisterVuforiaInitializedCallback(InitializeData);
+        }
     }
 }

Assets/RothenburgAR/Scripts/Common/PathHelper.cs

@@ -40,6 +40,11 @@ namespace RothenburgAR.Common
             get { return Directory.Exists(ExhibitionPath); }
         }
 
+        public static string SettingsFilePath
+        {
+            get { return Path.Combine(DataPath, "settings.json"); }
+        }
+
         public static string GetXmlPathFromDirectoryPath(string poiDirectory)
         {
             string directoryName = new DirectoryInfo(poiDirectory).Name;

Assets/RothenburgAR/Scripts/Common/Singleton.cs

@@ -1,4 +1,5 @@
-using UnityEngine;
+using RothenburgAR.UI;
+using UnityEngine;
 
 namespace RothenburgAR.Common
 {
@@ -32,7 +33,7 @@ namespace RothenburgAR.Common
                 {
                     if (_instance == null)
                     {
-                        _instance = (T) FindObjectOfType(typeof(T));
+                        _instance = (T)FindObjectOfType(typeof(T));
 
                         if (FindObjectsOfType(typeof(T)).Length > 1)
                         {
@@ -68,6 +69,12 @@ namespace RothenburgAR.Common
 
         private static bool applicationIsQuitting = false;
 
+        public virtual void ResetInstance()
+        {
+            Destroy(_instance.gameObject);
+            _instance = null;
+        }
+
         /// <summary>
         /// When Unity quits, it destroys objects in a random order.
         /// In principle, a Singleton is only destroyed when application quits.
@@ -77,6 +84,10 @@ namespace RothenburgAR.Common
         /// So, this was made to be sure we're not creating that buggy ghost object.
         /// </summary>
         public void OnDestroy()
+        {
+        }
+
+        private void OnApplicationQuit()
         {
             applicationIsQuitting = true;
         }

Assets/RothenburgAR/Scripts/Common/TextElement.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Xml;
+using UnityEngine;
 
 namespace RothenburgAR.Common
 {
@@ -76,7 +77,18 @@ namespace RothenburgAR.Common
                 TextEntryType type = TextElement.GetTextEntryTypeFromString(typeStr);
                 var valueStr = xmlNode.Attributes["value"].Value;
                 if (type == TextEntryType.File)
-                    valueStr = Path.Combine(basePath, valueStr);
+                {
+                    var file = Resources.Load<TextAsset>(valueStr);
+                    if (file != null)
+                    {
+                        valueStr = file.text;
+                        type = TextEntryType.Inline;
+                    }
+                    else
+                    {
+                        valueStr = Path.Combine(basePath, valueStr);
+                    }
+                }
                 textElement.AddTextElement(langCode, type, valueStr);
             }
             return textElement;

Assets/RothenburgAR/Scripts/Exhibition/ExhibitBehaviour.cs

@@ -40,13 +40,16 @@ namespace RothenburgAR.Exhibition
                 TitleBehaviour.Exhibit = this;
             }
 
-            //TODO remove title rotation
+            TitleBehaviour.transform.localEulerAngles = new Vector3(90, 0, 0);
-            if (newTitle.Rotation.HasValue)
-                TitleBehaviour.transform.localEulerAngles = newTitle.Rotation.Value + new Vector3(90, 0, 0);
 
-            //TODO remove title position and calculate on the fly? if tracker is on a wall, below is best. if it sits on the ground, what?
+            //TODO remove title position property and calculate on the fly? 
+            // if tracker is on a wall, below is best. if it sits on the ground, what?
+            // leave property alive for now and set title slightly below the bottom border for now
             if (newTitle.Position.HasValue)
                 TitleBehaviour.transform.localPosition = newTitle.Position.Value;
+            else
+                TitleBehaviour.transform.localPosition = new Vector3(0, .05f, -.52f);
+
 
             TitleBehaviour.DataText = newTitle.Text;
         }

Assets/RothenburgAR/Scripts/Exhibition/ExhibitionApiDataPreloader.cs

@@ -16,6 +16,8 @@ namespace RothenburgAR.Exhibition
         {
             if (!Directory.Exists(exhibitionDirectory))
                 return false;
+            if (!File.Exists(Path.Combine(exhibitionDirectory, "version.txt")))
+                return false;
             if (!File.Exists(Path.Combine(exhibitionDirectory, "tracker.xml")))
                 return false;
             if (!File.Exists(Path.Combine(exhibitionDirectory, "tracker.dat")))
@@ -86,21 +88,9 @@ namespace RothenburgAR.Exhibition
             }
             newExhibit.Description = exhibitDescr;
 
-            //TODO calculate sizes dynamically and remove these default values
-            var position = new Vector3(0, .1f, -.52f);
-            var rotation = Vector3.zero;
-            var fontSize = .7f;
-            var boxHeight = .25f;
-            var boxWidth = .75f;
-
             PreloadedExhibitTitle preTitle = new PreloadedExhibitTitle
             {
-                Text = exhibitTitle,
+                Text = exhibitTitle
-                Position = position,
-                Rotation = rotation,
-                FontSize = fontSize,
-                BoxWidth = boxWidth,
-                BoxHeight = boxHeight
             };
             newExhibit.Title = preTitle;
 

Assets/RothenburgAR/Scripts/Exhibition/ExhibitionXmlPreloader.cs

@@ -93,11 +93,7 @@ namespace RothenburgAR.Exhibition
                 PreloadedExhibitTitle preTitle = new PreloadedExhibitTitle
                 {
                     Text = exhibitTitle,
-                    Position = GetVector3FromXmlNode(exhibitNode.SelectSingleNode("title/position")),
+                    Position = GetVector3FromXmlNode(exhibitNode.SelectSingleNode("title/position"))
-                    Rotation = GetVector3FromXmlNode(exhibitNode.SelectSingleNode("title/rotation")),
-                    FontSize = fontSize ?? 20,
-                    BoxWidth = boxWidth ?? 200,
-                    BoxHeight = boxHeight ?? 25
                 };
                 newExhibit.Title = preTitle;
             }

Assets/RothenburgAR/Scripts/Exhibition/PreloadedExhibition.cs

@@ -31,11 +31,6 @@ namespace RothenburgAR.Exhibition
     public struct PreloadedExhibitTitle
     {
         public TextElement Text { get; set; }
-        public Vector3? Rotation { get; set; }
         public Vector3? Position { get; set; }
-        public Vector2? Dimensions { get; set; }
-        public float FontSize { get; set; }
-        public float BoxHeight { get; set; }
-        public float BoxWidth { get; set; }
     }
 }

Assets/RothenburgAR/Scripts/LanguageManager.cs

@@ -86,21 +86,21 @@ namespace RothenburgAR
 
         public void LoadLanguagesFromXml()
         {
-            var xmlFilePath = Path.Combine(PathHelper.DataPath, "localization.xml");
+            var file = Resources.Load<TextAsset>("localization");
+            Debug.Log("Loading languages from Resources");
 
-            Debug.Log("Loading languages from  '" + xmlFilePath + "'");
+            if (file == null)
-            if (!File.Exists(xmlFilePath))
+                throw new FileNotFoundException("Localization file Assets/Resources/localization.xml not found");
-                throw new FileNotFoundException(xmlFilePath);
 
             XmlDocument doc = new XmlDocument();
-            doc.Load(xmlFilePath);
+            doc.LoadXml(file.text);
 
             var languageNodes = doc.SelectNodes("//language");
             foreach (XmlNode languageNode in languageNodes)
             {
                 var langKey = languageNode.Attributes["key"].Value;
                 var langName = languageNode.Attributes["name"].Value;
-                var langFlagPath = Path.Combine(PathHelper.DataPath, languageNode.Attributes["flagPath"].Value);
+                var langFlagPath = languageNode.Attributes["flagPath"].Value;
 
                 AddLanguage(langKey, langName, langFlagPath);
 

Assets/RothenburgAR/Scripts/UI/ARViewBehaviour.cs

@@ -8,6 +8,12 @@ namespace RothenburgAR.UI
     {
         public DetailsPanelBehaviour DetailsPanel;
         public ProjectionEffectBehaviour ProjectionEffect;
+        public GameObject Crosshairs;
+
+        public void Start()
+        {
+            Crosshairs.SetActive(InputManager.Instance.AllowCrosshairControls);
+        }
 
         public void DisplayPoiDetails(PoiBehaviour poi, bool animated = true)
         {

Assets/RothenburgAR/Scripts/UI/BaseViewBehaviour.cs

@@ -35,5 +35,9 @@ namespace RothenburgAR.UI
         {
             UIManager.Instance.SwitchToView(ViewName.FontsizeSelectView);
         }
+        public void SwitchToUpdaterView()
+        {
+            UIManager.Instance.SwitchToView(ViewName.UpdaterView);
+        }
     }
 }

Assets/RothenburgAR/Scripts/UI/ColorSelectViewBehaviour.cs

@@ -2,6 +2,7 @@
 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections.Generic;
+using RothenburgAR.Common;
 
 namespace RothenburgAR.UI
 {
@@ -11,6 +12,9 @@ namespace RothenburgAR.UI
 
         void Start()
         {
+            if (SettingsManager.Instance.Settings.ColorschemeID.HasValue && UIManager.Instance.StartingUp)
+                SwitchToFontsizeSelectView();
+
             CreateColorSelectionCircles();
         }
 
@@ -26,7 +30,11 @@ namespace RothenburgAR.UI
                 selectionCircle.GetComponentInChildren<Button>().onClick.AddListener(() =>
                 {
                     UIColorSchemeManager.Instance.SetUiColorScheme(id);
-                    if (UIManager.Instance.StartingUp) SwitchToTutorialView();
+
+                    SettingsManager.Instance.Settings.ColorschemeID = UIColorSchemeManager.Instance.CurrentColorSchemeID;
+                    SettingsManager.Instance.PersistSettings();
+
+                    if (UIManager.Instance.StartingUp) SwitchToFontsizeSelectView();
                     else SwitchToARView();
                 });
 
@@ -45,20 +53,5 @@ namespace RothenburgAR.UI
 
             return selectionCircle;
         }
-
-        private void AddSwitchViewEventListener(GameObject selectionCircle)
-        {
-            selectionCircle.GetComponentInChildren<Button>().onClick.AddListener(() =>
-            {
-                if (UIManager.Instance.StartingUp)
-                {
-                    SwitchToTutorialView();
-                }
-                else
-                {
-                    SwitchToARView();
-                }
-            });
-        }
     }
 }

Assets/RothenburgAR/Scripts/UI/DisplayManager.cs

@@ -18,7 +18,10 @@ namespace RothenburgAR.UI
 
         public readonly UnityEvent OnOrientationChange = new UnityEvent();
         public ScreenOrientation ScreenOrientation;
-        private Vector2 resolution; // Current Resolution
+
+        public float ScreensizeInInches { get; set; }
+
+        private Vector2 lastKnownResolution; // Current Resolution
         private ScreenOrientation orientation; // Current Screen Orientation
 
         static void Init()
@@ -35,12 +38,16 @@ namespace RothenburgAR.UI
             scaler.screenMatchMode = UnityEngine.UI.CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
             scaler.matchWidthOrHeight = .5f;
 
-            instance.resolution = new Vector2(Screen.width, Screen.height);
+            instance.lastKnownResolution = new Vector2(Screen.width, Screen.height);
             instance.orientation = Screen.orientation;
 
-            instance.ScreenOrientation = instance.resolution.x < instance.resolution.y
+            instance.ScreenOrientation = instance.lastKnownResolution.x < instance.lastKnownResolution.y
                     ? ScreenOrientation.Portrait
                     : ScreenOrientation.Landscape;
+
+            // Screen diagonal in logical inches
+            instance.ScreensizeInInches = Mathf.Sqrt(Mathf.Pow(Screen.height, 2) + Mathf.Pow(Screen.width, 2)) / Screen.dpi;
+            Debug.Log("Screen Diagonal is approximately " + instance.ScreensizeInInches + " inches.");
         }
 
         private void Start()
@@ -53,12 +60,12 @@ namespace RothenburgAR.UI
 
         private void OnRectTransformDimensionsChange()
         {
-            if (orientation != Screen.orientation || !(resolution.x == Screen.width && resolution.y == Screen.height))
+            if (orientation != Screen.orientation || !(lastKnownResolution.x == Screen.width && lastKnownResolution.y == Screen.height))
             {
                 orientation = Screen.orientation;
-                resolution = new Vector2(Screen.width, Screen.height);
+                lastKnownResolution = new Vector2(Screen.width, Screen.height);
-                ScreenOrientation = resolution.x < resolution.y 
+                ScreenOrientation = lastKnownResolution.x < lastKnownResolution.y
-                    ? ScreenOrientation.Portrait 
+                    ? ScreenOrientation.Portrait
                     : ScreenOrientation.Landscape;
 
                 OnOrientationChange.Invoke();

Assets/RothenburgAR/Scripts/UI/FontsizeSelectViewBehaviour.cs

@@ -1,4 +1,5 @@
-using System;
+using RothenburgAR.Common;
+using System;
 using System.IO;
 using System.Linq;
 using TMPro;
@@ -16,6 +17,9 @@ namespace RothenburgAR.UI
 
         public void Start()
         {
+            if (SettingsManager.Instance.Settings.Fontsize.HasValue && UIManager.Instance.StartingUp)
+                SwitchToTutorialView();
+
             CreateLanguageSelectionFlags();
         }
 
@@ -48,6 +52,9 @@ namespace RothenburgAR.UI
             Debug.Log("Switching Font size to '" + Enum.GetName(typeof(FontsizeSetting), setting) + "'");
             FontsizeManager.Instance.CurrentFontsizeSetting = setting;
 
+            SettingsManager.Instance.Settings.Fontsize = FontsizeManager.Instance.CurrentFontsizeSetting;
+            SettingsManager.Instance.PersistSettings();
+
             StateManager sm = TrackerManager.Instance.GetStateManager();
             foreach (var item in sm.GetActiveTrackableBehaviours())
             {
@@ -55,7 +62,8 @@ namespace RothenburgAR.UI
                 teh.OnTrackableStateChanged(TrackableBehaviour.Status.NOT_FOUND, TrackableBehaviour.Status.TRACKED);
             }
 
-            SwitchToARView();
+            if (UIManager.Instance.StartingUp) SwitchToTutorialView();
+            else SwitchToARView();
         }
     }
 }

Assets/RothenburgAR/Scripts/UI/FontsizeSelector.cs

@@ -14,10 +14,6 @@ namespace RothenburgAR.UI
             if (tmproTextUI != null)
             {
                 tmproTextUI.fontSize = FontsizeManager.Instance.GetFontsize(this.SizeClass);
-
-                //tmproText.enableAutoSizing = true;
-                //tmproText.fontSizeMax = FontsizeManager.Instance.GetFontsize(this.SizeClass);
-                //tmproText.fontSizeMin = tmproText.fontSizeMax * 0.8f;
             }
 
             var tmproText = gameObject.GetComponent<TMPro.TextMeshPro>();

Assets/RothenburgAR/Scripts/UI/InputManager.cs

@@ -8,9 +8,14 @@ namespace RothenburgAR.UI
 {
     internal class InputManager : Singleton<InputManager>
     {
+        public bool AllowCrosshairControls { get; private set; }
+
+        private static readonly float CrosshairControlsDisplaySizeThreshold = 7f;
+
         internal void Initialize()
         {
             Input.simulateMouseWithTouches = false;
+            AllowCrosshairControls = DisplayManager.Instance.ScreensizeInInches >= CrosshairControlsDisplaySizeThreshold;
         }
 
         private void Update()
@@ -26,6 +31,15 @@ namespace RothenburgAR.UI
             {
                 DoRaycast(screenPoint);
             }
+
+            if (Input.GetKeyDown(KeyCode.Escape))
+            {
+                if (Application.platform == RuntimePlatform.Android)
+                {
+                    AndroidJavaObject activity = new AndroidJavaClass("com.unity3d.player.UnityPlayer").GetStatic<AndroidJavaObject>("currentActivity");
+                    activity.Call<bool>("moveTaskToBack", true);
+                }
+            }
         }
 
         public void DoRaycast(Vector2 screenPoint, bool denyBlockedHits = true)

Assets/RothenburgAR/Scripts/UI/LanguageSelectViewBehaviour.cs

@@ -1,4 +1,5 @@
-using System;
+using RothenburgAR.Common;
+using System;
 using System.IO;
 using TMPro;
 using UnityEngine;
@@ -15,6 +16,9 @@ namespace RothenburgAR.UI
 
         public void Start()
         {
+            if (SettingsManager.Instance.Settings.Language != null && UIManager.Instance.StartingUp)
+                SwitchToColorSelectView();
+
             CreateLanguageSelectionFlags();
         }
 
@@ -32,13 +36,10 @@ namespace RothenburgAR.UI
         {
             var newFlag = GameObject.Instantiate(FlagPrefab, FlagContainer.transform);
             newFlag.SetActive(true);
-            
-            if (File.Exists(language.FlagImagePath))
-            {
-                var bytes = File.ReadAllBytes(language.FlagImagePath);
-                Texture2D texture = new Texture2D(4, 4, TextureFormat.RGBA32, false);
-                texture.LoadImage(bytes);
 
+            var texture = Resources.Load<Texture2D>(language.FlagImagePath);
+            if (texture != null)
+            {
                 var image = newFlag.GetComponentInChildren<Image>();
                 image.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
                 image.preserveAspect = true;
@@ -54,6 +55,9 @@ namespace RothenburgAR.UI
             Debug.Log("Switching Language to  '" + languageCode + "'");
             LanguageManager.Instance.CurrentLanguageKey = languageCode;
 
+            SettingsManager.Instance.Settings.Language = LanguageManager.Instance.CurrentLanguageKey;
+            SettingsManager.Instance.PersistSettings();
+
             StateManager sm = TrackerManager.Instance.GetStateManager();
             foreach (var item in sm.GetActiveTrackableBehaviours())
             {
@@ -61,14 +65,8 @@ namespace RothenburgAR.UI
                 teh.OnTrackableStateChanged(TrackableBehaviour.Status.NOT_FOUND, TrackableBehaviour.Status.TRACKED);
             }
 
-            if (UIManager.Instance.StartingUp)
+            if (UIManager.Instance.StartingUp) SwitchToColorSelectView();
-            {
+            else SwitchToARView();
-                SwitchToColorSelectView();
-            }
-            else
-            {
-                SwitchToARView();
-            }
         }
     }
 }

Assets/RothenburgAR/Scripts/UI/LocalizationSelector.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace RothenburgAR.UI
+{
+    public class LocalizationSelector : MonoBehaviour
+    {
+        public string LocalizationToken;
+
+        void OnEnable()
+        {
+            var tmproTextUI = gameObject.GetComponent<TMPro.TextMeshProUGUI>();
+            if (tmproTextUI != null)
+            {
+                tmproTextUI.text = LanguageManager.Instance.GetString(this.LocalizationToken);
+            }
+
+            var tmproText = gameObject.GetComponent<TMPro.TextMeshPro>();
+            if (tmproText != null)
+            {
+                tmproText.text = LanguageManager.Instance.GetString(this.LocalizationToken);
+            }
+        }
+    }
+}

Assets/RothenburgAR/Scripts/UI/LocalizationSelector.cs.meta

@@ -0,0 +1,13 @@
+fileFormatVersion: 2
+guid: 104796bd5a7a2434bb835da75350ba3f
+timeCreated: 1546026587
+licenseType: Free
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/RothenburgAR/Scripts/UI/SettingsManager.cs

@@ -0,0 +1,55 @@
+using System.IO;
+using Newtonsoft.Json;
+using RothenburgAR.Common;
+
+namespace RothenburgAR.UI
+{
+    class SettingsManager : Singleton<SettingsManager>
+    {
+        public bool? IsInitialized { get; private set; }
+
+        public class AppSettings
+        {
+            public string Language { get; set; }
+            public FontsizeSetting? Fontsize { get; set; }
+            public int? ColorschemeID { get; set; }
+        }
+
+        public AppSettings Settings { get; private set; }
+
+        public void Start()
+        {
+            if (File.Exists(PathHelper.SettingsFilePath))
+            {
+                //load settings file into settings object if existent
+                var json = File.ReadAllText(PathHelper.SettingsFilePath);
+                Settings = JsonConvert.DeserializeObject<AppSettings>(json);
+
+                IsInitialized = true;
+
+                if (Settings.Language != null)
+                    LanguageManager.Instance.CurrentLanguageKey = Settings.Language;
+
+                if (Settings.ColorschemeID.HasValue)
+                    UIColorSchemeManager.Instance.SetUiColorScheme(Settings.ColorschemeID.Value);
+
+                if (Settings.Fontsize.HasValue)
+                    FontsizeManager.Instance.CurrentFontsizeSetting = Settings.Fontsize.Value;
+
+                if (Settings.Language == null || !Settings.ColorschemeID.HasValue || !Settings.Fontsize.HasValue)
+                    IsInitialized = false;
+            }
+            else
+            {
+                Settings = new AppSettings();
+                IsInitialized = false;
+            }
+        }
+
+        public void PersistSettings()
+        {
+            var json = JsonConvert.SerializeObject(Settings);
+            File.WriteAllText(PathHelper.SettingsFilePath, json);
+        }
+    }
+}

Assets/RothenburgAR/Scripts/UI/SettingsManager.cs.meta

@@ -0,0 +1,13 @@
+fileFormatVersion: 2
+guid: d50764101604fa14d92f7523c16bdabc
+timeCreated: 1546388554
+licenseType: Free
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/RothenburgAR/Scripts/UI/SettingsViewBehaviour.cs

@@ -6,24 +6,7 @@ using UnityEngine;
 
 namespace RothenburgAR.UI
 {
-    [Serializable]
-    public struct MenuEntry
-    {
-        public string Token;
-        public TextMeshProUGUI TextMesh;
-    }
-
     public class SettingsViewBehaviour : BaseViewBehaviour
     {
-        [SerializeField]
-        private List<MenuEntry> MenuEntries;
-
-        public void OnEnable()
-        {
-            foreach (MenuEntry entry in MenuEntries)
-            {
-                entry.TextMesh.SetText(LanguageManager.Instance.GetString(entry.Token));
-            }
-        }
     }
 }

Assets/RothenburgAR/Scripts/UI/TutorialViewBehaviour.cs

@@ -1,4 +1,5 @@
-using UnityEngine;
+using RothenburgAR.Common;
+using UnityEngine;
 
 namespace RothenburgAR.UI
 {
@@ -7,20 +8,23 @@ namespace RothenburgAR.UI
         public TutorialHighlightBehaviour reticuleHighlight;
         public TutorialHighlightBehaviour menuHighlight;
         public TutorialHighlightBehaviour selectHighlight;
+        public GameObject Crosshairs;
 
         void OnEnable()
         {
             reticuleHighlight.SetText(LanguageManager.Instance.GetString("t_tutorial_reticule"));
             menuHighlight.SetText(LanguageManager.Instance.GetString("t_tutorial_settings"));
             selectHighlight.SetText(LanguageManager.Instance.GetString("t_tutorial_select"));
+
+            Crosshairs.SetActive(InputManager.Instance.AllowCrosshairControls);
         }
 
         void Update()
         {
-            if (Input.GetMouseButtonDown(0) == true ||
+            if (Input.GetMouseButtonDown(0) == true || (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Ended))
-                (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Ended))
             {
-                UIManager.Instance.SwitchToView(ViewName.ARView);
+                if (UIManager.Instance.StartingUp) SwitchToUpdaterView();
+                else UIManager.Instance.SwitchToView(ViewName.ARView);
             }
         }
 

Assets/RothenburgAR/Scripts/UI/UIColorSchemeManager.cs

@@ -27,6 +27,8 @@ namespace RothenburgAR.UI
         private Dictionary<UIMaterial, Material> _uiMaterials;
         public List<UIColorScheme> AvailableUIColorSchemes { get; private set; }
 
+        public int CurrentColorSchemeID = 0;
+
         internal void Initialize()
         {
             AvailableUIColorSchemes = new List<UIColorScheme>();
@@ -46,6 +48,7 @@ namespace RothenburgAR.UI
             else
             {
                 scheme = AvailableUIColorSchemes[uiColorSchemeId];
+                CurrentColorSchemeID = uiColorSchemeId;
             }
 
             _uiMaterials[UIMaterial.BaseOpaque].color = scheme.BaseColorOpaque;
@@ -95,13 +98,13 @@ namespace RothenburgAR.UI
 
         private void InitializeUIColorSchemes()
         {
-            var xmlFilePath = Path.Combine(PathHelper.DataPath, "colors.xml");
+            var file = Resources.Load<TextAsset>("colors");
-            Debug.Log("Loading colors from '" + xmlFilePath + "'");
+            Debug.Log("Loading colors from Resources..");
 
-            if (!File.Exists(xmlFilePath))
+            if (file == null)
             {
                 // Set default colors, if not able to load
-                Debug.Log("File " + xmlFilePath + " does not exist - use default colors");
+                Debug.LogWarning("colors.xml does not exist in Resources folder - use default colors");
                 AvailableUIColorSchemes = new List<UIColorScheme>
                 {
                     new UIColorScheme("t_color_name_light_blue", "#03A9F4", "#E1F5FE", "#0277BD", 0.75f),
@@ -112,7 +115,7 @@ namespace RothenburgAR.UI
             }
 
             XmlDocument doc = new XmlDocument();
-            doc.Load(xmlFilePath);
+            doc.LoadXml(file.text);
 
             var colorNodes = doc.SelectNodes("//color");
             if (colorNodes == null) return;

Assets/RothenburgAR/Scripts/UI/UIManager.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using RothenburgAR.Common;
 using UnityEngine;
@@ -14,7 +15,8 @@ namespace RothenburgAR.UI
         LanguageSelectView,
         ColorSelectView,
         FontsizeSelectView,
-        FullscreenModelView
+        FullscreenModelView,
+        UpdaterView
     }
 
     public class UIManager : Singleton<UIManager>
@@ -25,7 +27,7 @@ namespace RothenburgAR.UI
 
         public Boolean IsARViewVisible
         {
-            get { return _currentView.ViewName == ViewName.ARView; }
+            get { return _currentView != null && _currentView.ViewName == ViewName.ARView; }
         }
 
         public ARViewBehaviour ARViewBehaviour
@@ -62,7 +64,6 @@ namespace RothenburgAR.UI
         public UIManager()
         {
             _availableViews = new Dictionary<ViewName, View>();
-            StartingUp = true;
         }
 
         internal void Initialize()
@@ -123,12 +124,28 @@ namespace RothenburgAR.UI
                     ViewName = ViewName.FullscreenModelView,
                     PrefabName = "UI/FullscreenModelView"
                 });
+
+            _availableViews.Add(ViewName.UpdaterView,
+                new View()
+                {
+                    ViewName = ViewName.UpdaterView,
+                    PrefabName = "UI/UpdaterView"
+                });
         }
 
-        public void InitStartView()
+        public IEnumerator InitStartView()
         {
-            SwitchToView(ViewName.LanguageSelectView);
+            yield return new WaitUntil(() => SettingsManager.Instance.IsInitialized.HasValue);
-            StartingUp = true;
+            if (SettingsManager.Instance.IsInitialized.Value == true)
+            {
+                StartingUp = false;
+                SwitchToView(ViewName.ARView);
+            }
+            else
+            {
+                StartingUp = true;
+                SwitchToView(ViewName.LanguageSelectView);
+            }
         }
 
         public GameObject SwitchToView(ViewName nextViewName)
@@ -142,7 +159,7 @@ namespace RothenburgAR.UI
             View nextView;
             if (!_availableViews.TryGetValue(nextViewName, out nextView))
             {
-                Debug.Log("Tried to switch to view '" + nextViewName + "', but it failed.");
+                Debug.Log("Tried to switch to view '" + nextViewName + "', but it was not found.");
                 return null;
             }
 
@@ -156,7 +173,6 @@ namespace RothenburgAR.UI
                 Debug.Log("Switching to view '" + nextViewName + "'");
             }
 
-
             if (_currentView != null && _currentView.OnExit != null)
             {
                 _currentView.OnExit();

Assets/RothenburgAR/Scripts/UI/UpdaterViewBehaviour.cs

@@ -0,0 +1,117 @@
+using RothenburgAR.Exhibition;
+using RothenburgAR.PointOfInterest;
+using RothenburgAR.Updater;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace RothenburgAR.UI
+{
+    public class UpdaterViewBehaviour : BaseViewBehaviour
+    {
+        public UnityEngine.UI.Slider ProgressBar;
+        public GameObject UpdateProgressDialog;
+        public GameObject UpdateConfirmationDialog;
+        public GameObject UpdateCompletedDialog;
+        public GameObject UpdateFailedDialog;
+        public GameObject AlreadyUpToDateDialog;
+        public GameObject NoInternetDialog;
+
+        public GameObject ButtonBack;
+
+        private bool allowAbort = true;
+
+        private UpdateState lastUpdateState = UpdateState.UpdatesFound;
+
+        private void Start()
+        {
+            UpdateProgressDialog.SetActive(true);
+            UpdateConfirmationDialog.SetActive(false);
+            UpdateCompletedDialog.SetActive(false);
+            UpdateFailedDialog.SetActive(false);
+            ProgressBar.value = 0;
+            ProgressBar.maxValue = 1;
+
+            if (UIManager.Instance.StartingUp)
+            {
+                allowAbort = false;
+                ButtonBack.SetActive(false);
+            }
+
+            UIManager.Instance.StartingUp = false;
+        }
+
+        private void Update()
+        {
+            ProgressBar.value = UpdateManager.Instance.CurrentProgress;
+            ProgressBar.maxValue = UpdateManager.Instance.MaxProgress;
+
+            var state = UpdateManager.Instance.UpdateState;
+            if (state == lastUpdateState) return;
+            lastUpdateState = state;
+
+            UpdateProgressDialog.SetActive(false);
+            UpdateConfirmationDialog.SetActive(false);
+            UpdateCompletedDialog.SetActive(false);
+            UpdateFailedDialog.SetActive(false);
+
+            switch (state)
+            {
+                case UpdateState.ConfirmationPending:
+                    UpdateConfirmationDialog.SetActive(true);
+                    break;
+
+                case UpdateState.UpdatesFound:
+                case UpdateState.Downloading:
+                    UpdateProgressDialog.SetActive(true);
+                    break;
+
+                case UpdateState.Completed:
+                    UpdateCompletedDialog.SetActive(true);
+                    break;
+
+                case UpdateState.Failed:
+                    UpdateFailedDialog.SetActive(true);
+                    break;
+
+                case UpdateState.NoInternet:
+                    NoInternetDialog.SetActive(true);
+                    break;
+
+                case UpdateState.UpToDate:
+                    AlreadyUpToDateDialog.SetActive(true);
+                    break;
+            }
+        }
+
+        public void TriggerUpdate()
+        {
+            UpdateManager.Instance.TriggerUpdate();
+        }
+
+        public void ExitView()
+        {
+            UIManager.Instance.SwitchToView(ViewName.ARView);
+        }
+
+        public void ApplyUpdates()
+        {
+            //DisplayManager.ResetInstance(); // Not necessary
+
+            LanguageManager.Instance.ResetInstance();
+            InputManager.Instance.ResetInstance();
+
+            UIManager.Instance.ResetInstance();
+            UpdateManager.Instance.ResetInstance();
+            SettingsManager.Instance.ResetInstance();
+
+            PoiDataManager.Instance.ResetInstance();
+            ExhibitionManager.Instance.ResetInstance();
+
+            UIColorSchemeManager.Instance.ResetInstance();
+            FontsizeManager.Instance.ResetInstance();
+
+            SceneManager.LoadScene("mainScene");
+        }
+    }
+}

Assets/RothenburgAR/Scripts/UI/UpdaterViewBehaviour.cs.meta

@@ -0,0 +1,13 @@
+fileFormatVersion: 2
+guid: 49d9434809cb84c44ae021b275939980
+timeCreated: 1546011854
+licenseType: Free
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/RothenburgAR/Scripts/Updater/HttpHandler.cs

@@ -65,11 +65,14 @@ namespace RothenburgAR.Updater
         public UnityWebRequest Request { get; set; }
         public UnityWebRequestAsyncOperation Operation { get; set; }
 
+        private bool isDone = false;
+        public bool IsError { get; set; }
+
         public bool IsDone
         {
             get
             {
-                return Operation.isDone && Request.isDone;
+                return Operation.isDone && Request.isDone && this.isDone;
             }
         }
 
@@ -79,6 +82,16 @@ namespace RothenburgAR.Updater
             this.Download = download;
             this.Request = request;
             this.Operation = operation;
+
+            this.Operation.completed += (_) =>
+            {
+                this.isDone = true;
+                this.IsError =
+                    request.isNetworkError
+                    || request.isHttpError
+                    // Error when answer is empty except when it's a 300 error code
+                    || (!(request.responseCode >= 300 && request.responseCode < 400) && download.data.Length == 0);
+            };
         }
     }
 

Assets/RothenburgAR/Scripts/Updater/UpdateManager.cs

@@ -0,0 +1,466 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using System;
+using Newtonsoft.Json;
+using RothenburgAR.Common;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text.RegularExpressions;
+using RothenburgAR.UI;
+
+namespace RothenburgAR.Updater
+{
+    public enum UpdateState
+    {
+        UpToDate,
+        UpdatesFound,
+        ConfirmationPending,
+        Downloading,
+        Completed,
+        Failed,
+        NoInternet
+    }
+
+    public class UpdateManager : Singleton<UpdateManager>
+    {
+        public UpdateState UpdateState { get; private set; }
+
+        public int CurrentProgress { get; private set; }
+        public int MaxProgress { get; private set; }
+
+        private readonly int retriesUntilFailure = 4;
+        private readonly string trackerMainFile = "tracker.dat";
+
+        public ApiVersioncheckAnswer VersionAnswer { get; set; }
+
+        Dictionary<string, List<ApiExhibit>> ExhibitMetas = new Dictionary<string, List<ApiExhibit>>();
+
+        void Start()
+        {
+            if (Application.internetReachability == NetworkReachability.NotReachable)
+            {
+                // just continue to app
+                UpdatesCompleted();
+                UpdateState = UpdateState.NoInternet;
+                return;
+            }
+
+            CheckForUpdates();
+        }
+
+        private void CheckForUpdates()
+        {
+            // check for updates and ask for permission to download if there are any
+            string versionMap = GenerateVersionMap();
+            CheckForUpdates(versionMap, 0);
+        }
+
+        private void CheckForUpdates(string versionMap, int retries)
+        {
+            HttpHandler http = new HttpRequest(ApiInfo.VersionCheckEndpoint, HttpVerb.POST, versionMap).Send();
+            http.Operation.completed += ar =>
+            {
+                Debug.Log("VersionAnswer: " + http.Download.text);
+                var answer = JsonConvert.DeserializeObject<ApiVersioncheckAnswer>(http.Download.text);
+                if (http.IsError)
+                {
+                    if (retries < retriesUntilFailure)
+                    {
+                        CheckForUpdates(versionMap, retries + 1);
+                        return;
+                    }
+                    else
+                    {
+                        UpdateFailed(http);
+                        return;
+                    }
+                }
+
+                Debug.Log(string.Format("{1}-DONE with {0}", ApiInfo.VersionCheckEndpoint, Time.realtimeSinceStartup));
+                VersionAnswer = answer;
+
+                if (VersionAnswer.Data.TrueForAll(d => d.Meta.Status == VersionStatus.ok && d.Tracker.Status == VersionStatus.ok))
+                {
+                    UpdateState = UpdateState.UpToDate;
+                    StartCoroutine(CheckFiles());
+                    return;
+                }
+
+                UpdateState = UpdateState.UpdatesFound;
+
+                if (Application.internetReachability == NetworkReachability.ReachableViaLocalAreaNetwork)
+                {
+                    TriggerUpdate();
+                }
+                else
+                {
+                    UpdateState = UpdateState.ConfirmationPending;
+
+                    if (!UIManager.Instance.StartingUp)
+                        UIManager.Instance.SwitchToView(ViewName.UpdaterView);
+                }
+            };
+        }
+
+        private string GenerateVersionMap()
+        {
+            string result = "{ ";
+
+            var rootDir = new DirectoryInfo(PathHelper.ExhibitionPath);
+            if (!rootDir.Exists)
+            {
+                rootDir.Create();
+            }
+
+            var exhibitionDirs = rootDir.GetDirectories().ToList();
+
+            foreach (var dir in exhibitionDirs)
+            {
+                var versionFilePath = Path.Combine(dir.FullName, "version.txt");
+                if (!File.Exists(versionFilePath)) continue;
+
+                var version = long.Parse(File.ReadAllText(versionFilePath));
+                result += @"""{id}"":""{version}"",".Replace("{id}", dir.Name).Replace("{version}", version.ToString());
+            };
+
+            result = result.Substring(0, result.Length - 1) + "}";
+            return result;
+        }
+
+        public void TriggerUpdate()
+        {
+            /*
+             * dir structure:
+             *     data
+             *         exhibition
+             *             id
+             *                 tracker.dat
+             *                 tracker.xml
+             *                 de
+             *                     meta.json
+             *                 en
+             *                     meta.json
+             *             id
+             *                 ...
+             *         media
+             *             ...
+             */
+
+            UpdateState = UpdateState.Downloading;
+
+            if (VersionAnswer == null)
+            {
+                // try to get VersionAnswer first if that's what failed
+                CheckForUpdates();
+                return;
+            }
+
+            //TODO write languages to file the app can read (so that the languagemanager can decide which languages the user can choose from)
+
+            var updatedExhibitions = VersionAnswer.Data.Where(d => d.Meta.Status == VersionStatus.updated).ToList();
+            var updatedTracker = VersionAnswer.Data.Where(d => d.Tracker.Status == VersionStatus.updated).ToList();
+            updatedExhibitions.Union(updatedTracker).Distinct().ToList().ForEach(updatedExhibition =>
+            {
+                // create exhibition directories
+                var path = Path.Combine(PathHelper.ExhibitionPath, updatedExhibition.Id);
+                if (!Directory.Exists(path))
+                {
+                    Directory.CreateDirectory(path);
+                }
+            });
+
+            updatedExhibitions.ForEach(d => UpdateExhibition(d, updatedExhibitions));
+            StartCoroutine(UpdateExhibitionsCoroutine(updatedExhibitions));
+        }
+
+        private IEnumerator UpdateExhibitionsCoroutine(List<ApiExhibitionVersion> updatedExhibitions)
+        {
+            yield return new WaitUntil(() => updatedExhibitions.Count == 0);
+            StartCoroutine(CheckFiles());
+        }
+
+        private void UpdateExhibition(ApiExhibitionVersion exhibition, List<ApiExhibitionVersion> updatedExhibitions)
+        {
+            var exhibitionDownloads = new List<HttpHandler>();
+
+            foreach (var lang in VersionAnswer.Languages)
+            {
+                var path = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id, lang);
+                if (!Directory.Exists(path))
+                {
+                    Directory.CreateDirectory(path);
+                }
+
+                UpdateMetaFile(exhibition, path, lang, exhibitionDownloads);
+            }
+
+            var versionPath = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id, "version.txt");
+            var version = exhibition.Meta.UpdateVersion.ToString();
+            StartCoroutine(UpdateVersionFileCoroutine(exhibitionDownloads, versionPath, version, exhibition, updatedExhibitions));
+        }
+
+        private IEnumerator UpdateVersionFileCoroutine(List<HttpHandler> exhibitionDownloads, string versionPath, string version, ApiExhibitionVersion exhibition, List<ApiExhibitionVersion> updatedExhibitions)
+        {
+            // updates version file only if all sub files were downloaded successfully
+            yield return new WaitUntil(() => exhibitionDownloads.All(h => h.IsDone));
+            if (exhibitionDownloads.Any(http => http.IsError)) yield break;
+
+            File.WriteAllText(versionPath, version);
+            updatedExhibitions.Remove(exhibition);
+        }
+
+        private void UpdateMetaFile(ApiExhibitionVersion exhibition, string path, string lang, List<HttpHandler> exhibitionDownloads, int retries = 0)
+        {
+            var url = exhibition.Meta.UpdateUrl.Replace("{lang}", lang);
+            var http = new HttpRequest(url, HttpVerb.GET).Send();
+            exhibitionDownloads.Add(http);
+
+            http.Operation.completed += ar =>
+            {
+                if (http.IsError)
+                {
+                    if (retries < retriesUntilFailure)
+                    {
+                        exhibitionDownloads.Remove(http);
+                        UpdateMetaFile(exhibition, path, lang, exhibitionDownloads, retries + 1);
+                        return;
+                    }
+                    else
+                    {
+                        UpdateFailed(http);
+                        return;
+                    }
+                }
+
+                File.WriteAllText(Path.Combine(path, "meta.json"), http.Download.text, System.Text.Encoding.UTF8);
+                Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
+
+                var exhibits = JsonConvert.DeserializeObject<List<ApiExhibit>>(http.Download.text);
+                if (exhibits == null)
+                {
+                    Debug.LogError(string.Format("Exhibit could not be parsed from Json:\nurl: {0}\njson: {1}", url, http.Download.text));
+                    http.IsError = true;
+                    UpdateFailed(http);
+                }
+            };
+        }
+
+        private IEnumerator CheckFiles()
+        {
+            var usedFileList = new Dictionary<string, FileDownloadInfo>();
+            GenerateUsedFileList(usedFileList);
+
+            MaxProgress = usedFileList.Count;
+            foreach (var file in usedFileList)
+            {
+                var fileInfo = file.Value;
+                Dictionary<string, byte[]> data = new Dictionary<string, byte[]>();
+                yield return DownloadFile(fileInfo, data);
+
+                foreach (var item in data)
+                {
+                    if (!Directory.Exists(fileInfo.directory)) Directory.CreateDirectory(fileInfo.directory);
+                    File.WriteAllBytes(item.Key, item.Value);
+                }
+            }
+
+            var deletedData = VersionAnswer.Data.Where(d =>
+                d.Meta.Status == VersionStatus.deleted
+                || d.Tracker.Status == VersionStatus.deleted).ToList();
+            deletedData.ForEach(d => DeleteExhibition(d));
+
+            CleanupMediaFiles();
+            UpdatesCompleted();
+        }
+
+        private void GenerateUsedFileList(Dictionary<string, FileDownloadInfo> downloadList)
+        {
+            ExhibitMetas.Clear();
+            var rootDir = new DirectoryInfo(PathHelper.ExhibitionPath);
+            var exhibitionDirs = rootDir.GetDirectories().ToList();
+
+            foreach (var dir in exhibitionDirs)
+            {
+                var versionFilePath = Path.Combine(dir.FullName, "version.txt");
+                if (!File.Exists(versionFilePath)) continue;
+
+                var exhibitionId = dir.Name;
+                foreach (var lang in VersionAnswer.Languages)
+                {
+                    var metaFilePath = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibitionId, lang, "meta.json");
+                    var metaFile = File.ReadAllText(metaFilePath);
+                    var exhibits = JsonConvert.DeserializeObject<List<ApiExhibit>>(metaFile);
+                    ExhibitMetas.Add(exhibitionId + "/" + lang, exhibits);
+                }
+            }
+
+            // would check for   || d.Tracker.Status == VersionStatus.ok   as well but we don't get an updateUrl for those so it's no use
+            var updatedTracker = VersionAnswer.Data.Where(d => d.Tracker.Status == VersionStatus.updated).ToList();
+            foreach (var exhibition in updatedTracker)
+            {
+                var url = exhibition.Tracker.UpdateUrl;
+                var directory = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id);
+                var filepath = PathHelper.CombinePaths(directory, trackerMainFile);
+
+                downloadList.Add(url, new FileDownloadInfo(url, filepath, directory));
+            }
+
+            var mediaList = ExhibitMetas.Values.ToList().SelectMany(m => m.SelectMany(i => i.Pois.Select(p => p.MediaId))).Where(m => m != null).Distinct().ToList();
+            foreach (var mediaId in mediaList)
+            {
+                var url = ApiInfo.FileEndpoint.Replace("{id}", mediaId);
+                var directory = PathHelper.CombinePaths(PathHelper.MediaPath, mediaId);
+                var filepath = PathHelper.CombinePaths(directory, mediaId + ".obj");
+
+                downloadList.Add(url, new FileDownloadInfo(url, filepath, directory));
+            }
+        }
+
+        private class FileDownloadInfo
+        {
+            public string url;
+            public string filepath;
+            public string directory;
+
+            public FileDownloadInfo(string url, string filepath, string directory)
+            {
+                this.url = url;
+                this.filepath = filepath;
+                this.directory = directory;
+            }
+        }
+
+        private IEnumerator DownloadFile(FileDownloadInfo info, Dictionary<string, byte[]> data)
+        {
+            if (!Directory.Exists(info.directory)) Directory.CreateDirectory(info.directory);
+
+            var eTag = GenerateETag(info.filepath);
+            yield return DownloadFile(info, eTag, data);
+        }
+
+        private IEnumerator DownloadFile(FileDownloadInfo info, string eTag, Dictionary<string, byte[]> data, int retries = 0)
+        {
+            var url = info.url;
+            var http = new HttpRequest(url, HttpVerb.GET)
+                .WithHeader("If-None-Match", eTag)
+                .WithHeader("Accept-Encoding", "gzip,deflate")
+                .Send();
+
+            yield return new WaitUntil(() => http.IsDone);
+
+            if (http.IsError)
+            {
+                if (retries < retriesUntilFailure)
+                {
+                    yield return DownloadFile(info, eTag, data, retries + 1);
+                }
+                else
+                {
+                    UpdateFailed(http);
+                    yield return null;
+                }
+            }
+
+            if (http.Request.responseCode != 304)
+            {
+                if (!data.ContainsKey(info.filepath))
+                {
+                    // gzipped files are un-gzipped automagically
+                    data.Add(info.filepath, http.Download.data);
+                }
+            }
+
+            var subfilesHeader = http.Request.GetResponseHeader("subfiles");
+            var test = http.Request.GetResponseHeaders();
+            if (subfilesHeader != null)
+            {
+                var subfiles = subfilesHeader.Split(new string[1] { ";;" }, StringSplitOptions.RemoveEmptyEntries).ToList();
+
+                MaxProgress += subfiles.Count(subfileName => !data.Keys.Contains(Path.Combine(info.directory, subfileName)));
+
+                foreach (var subfileName in subfiles)
+                {
+                    var subfileInfo = new FileDownloadInfo(
+                        info.url + "/" + subfileName,
+                        Path.Combine(info.directory, subfileName),
+                        info.directory);
+
+                    var subfileETag = GenerateETag(info.filepath);
+                    //                                              HACK to prevent infinite subfile loop
+                    if (!data.ContainsKey(subfileInfo.filepath) && subfileName != "brick.png")
+                    {
+                        yield return DownloadFile(subfileInfo, subfileETag, data);
+                    }
+                }
+            }
+
+            Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
+            CurrentProgress += 1;
+        }
+
+        private string GenerateETag(string filepath)
+        {
+            string eTag = "";
+            if (File.Exists(filepath))
+            {
+                var bytes = File.ReadAllBytes(filepath);
+                SHA256Managed hasher = new SHA256Managed();
+                byte[] hash = hasher.ComputeHash(bytes);
+                eTag = "sha256-";
+                foreach (byte x in hash)
+                {
+                    eTag += String.Format("{0:x2}", x);
+                }
+            }
+            return eTag;
+        }
+
+        private void DeleteExhibition(ApiExhibitionVersion exhibition)
+        {
+            var path = Path.Combine(PathHelper.ExhibitionPath, exhibition.Id);
+            Directory.Delete(path, true);
+        }
+
+        private void CleanupMediaFiles()
+        {
+            var requiredMedia = ExhibitMetas.Values.ToList().SelectMany(m => m.SelectMany(i => i.Pois.Select(p => p.MediaId))).Where(m => m != null).Distinct().ToList();
+
+            var mediaDir = new DirectoryInfo(PathHelper.MediaPath);
+            var mediaDirs = mediaDir.GetDirectories().ToList();
+            foreach (var dir in mediaDirs)
+            {
+                //                                    HACK to preserve passion media files
+                if (!requiredMedia.Contains(dir.Name) && Regex.IsMatch(dir.Name, "[0-9]"))
+                {
+                    Directory.Delete(dir.FullName, true);
+                }
+            }
+        }
+
+        private void UpdateFailed(HttpHandler http)
+        {
+            Debug.LogError(String.Format("Error while downloading\nurl: {0}\nNetwork Error: {1}\nHttp Error: {2}\nHttp Response Code: {3}",
+                    http.Request.url,
+                    http.Request.isNetworkError,
+                    http.Request.isHttpError,
+                    http.Request.responseCode));
+
+            UpdateState = UpdateState.Failed;
+
+            if (!UIManager.Instance.StartingUp)
+                UIManager.Instance.SwitchToView(ViewName.UpdaterView);
+        }
+        
+        public void UpdatesCompleted()
+        {
+            if (UpdateState == UpdateState.UpToDate) return;
+
+            UpdateState = UpdateState.Completed;
+
+            if (!UIManager.Instance.StartingUp)
+                UIManager.Instance.SwitchToView(ViewName.UpdaterView);
+        }
+    }
+}

Assets/RothenburgAR/Scripts/Updater/UpdaterBehaviour.cs

@@ -1,435 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
-using UnityEngine;
-using System;
-using Newtonsoft.Json;
-using RothenburgAR.Common;
-using System.IO;
-using System.IO.Compression;
-using System.Security.Cryptography;
-
-namespace RothenburgAR.Updater
-{
-    public class UpdaterBehaviour : MonoBehaviour
-    {
-        public UnityEngine.UI.Slider ProgressBar;
-        public GameObject UpdateDialog;
-        public GameObject UpdateConfirmationDialog;
-        public GameObject UpdateCompletedDialog;
-        public GameObject UpdateFailedDialog;
-
-        private readonly float afterDownloadWaitTime = 10f;
-
-        public ApiVersioncheckAnswer VersionAnswer { get; set; }
-        private List<HttpHandler> httpHandlers = new List<HttpHandler>();
-        private LogFileHandler logFileHandler;
-
-        private readonly List<string> downloadingMedia = new List<string>();
-
-        void Start()
-        {
-#if !UNITY_EDITOR
-            logFileHandler = new LogFileHandler();
-#else
-            Debug.Log("Found Unity Editor; Disabled logging into file.");
-#endif
-            InitUI();
-
-            if (Application.internetReachability == NetworkReachability.NotReachable)
-            {
-                // just continue to app
-                LoadMainScene();
-                return;
-            }
-
-            CheckForUpdates();
-        }
-
-        private void InitUI()
-        {
-            FindObjectsOfType<Camera>().First().enabled = true;
-            UpdateDialog.SetActive(false);
-            UpdateConfirmationDialog.SetActive(false);
-            UpdateCompletedDialog.SetActive(false);
-            UpdateFailedDialog.SetActive(false);
-            ProgressBar.value = 0;
-        }
-
-        private void CheckForUpdates()
-        {
-            // check for updates and ask for permission to download if there are any
-            string versionMap = GenerateVersionMap();
-            HttpHandler http = new HttpRequest(ApiInfo.VersionCheckEndpoint, HttpVerb.POST, versionMap).Send();
-            httpHandlers.Add(http);
-
-            http.Operation.completed += ar =>
-            {
-                if (CheckNetworkErrors(http))
-                {
-                    return;
-                }
-
-                Debug.Log(http.Download.text);
-
-                VersionAnswer = JsonConvert.DeserializeObject<ApiVersioncheckAnswer>(http.Download.text);
-                Debug.Log(string.Format("{1}-DONE with {0}", ApiInfo.VersionCheckEndpoint, Time.realtimeSinceStartup));
-
-                var answer = VersionAnswer;
-
-                if (VersionAnswer.Data.TrueForAll(d => d.Meta.Status == VersionStatus.ok && d.Tracker.Status == VersionStatus.ok))
-                {
-                    // no updates required, continue to app
-                    LoadMainScene();
-                    return;
-                }
-
-                UpdateDialog.SetActive(true);
-
-                if (Application.internetReachability == NetworkReachability.ReachableViaLocalAreaNetwork)
-                {
-                    TriggerUpdate();
-                }
-                else
-                {
-                    UpdateConfirmationDialog.SetActive(true);
-                }
-            };
-        }
-
-        private string GenerateVersionMap()
-        {
-            string result = "{ ";
-
-            var rootDir = new DirectoryInfo(PathHelper.ExhibitionPath);
-            if (!rootDir.Exists)
-            {
-                rootDir.Create();
-            }
-
-            var exhibitionDirs = rootDir.GetDirectories().ToList();
-
-            foreach (var dir in exhibitionDirs)
-            {
-                var versionFilePath = Path.Combine(dir.FullName, "version.txt");
-                if (!File.Exists(versionFilePath)) continue;
-
-                var version = long.Parse(File.ReadAllText(versionFilePath));
-                result += @"""{id}"":""{version}"",".Replace("{id}", dir.Name).Replace("{version}", version.ToString());
-            };
-
-            result = result.Substring(0, result.Length - 1) + "}";
-            return result;
-        }
-
-        public void TriggerUpdate()
-        {
-            /*
-             * dir structure:
-             *     data
-             *         exhibition
-             *             id
-             *                 tracker.dat
-             *                 tracker.xml
-             *                 de
-             *                     meta.json
-             *                 en
-             *                     meta.json
-             *             id
-             *                 ...
-             *         media
-             *             ...
-             */
-
-            UpdateConfirmationDialog.SetActive(false);
-            UpdateFailedDialog.SetActive(false);
-            this.downloadingMedia.Clear();
-
-            if (VersionAnswer == null)
-            {
-                // try to get VersionAnswer first if that's what failed
-                CheckForUpdates();
-                return;
-            }
-
-            //TODO write languages to file the app can read (so that the languagemanager can decide which languages the user can choose from)
-
-            var updatedMeta = VersionAnswer.Data.Where(d => d.Meta.Status == VersionStatus.updated).ToList();
-            var updatedTracker = VersionAnswer.Data.Where(d => d.Tracker.Status == VersionStatus.updated).ToList();
-            updatedMeta.Union(updatedTracker).ToList().ForEach(updatedExhibition =>
-            {
-                // create exhibition directories
-                var path = Path.Combine(PathHelper.ExhibitionPath, updatedExhibition.Id);
-                if (!Directory.Exists(path))
-                {
-                    Directory.CreateDirectory(path);
-                }
-            });
-
-            updatedMeta.ForEach(d => UpdateMeta(d));
-            updatedTracker.ForEach(d => UpdateTracker(d));
-
-            var deletedData = VersionAnswer.Data.Where(d =>
-                d.Meta.Status == VersionStatus.deleted
-                || d.Tracker.Status == VersionStatus.deleted).ToList();
-            deletedData.ForEach(d => DeleteExhibition(d));
-        }
-
-        private void DeleteExhibition(ApiExhibitionVersion exhibition)
-        {
-            //TODO delete media as well if not used elsewhere?
-            var path = Path.Combine(PathHelper.ExhibitionPath, exhibition.Id);
-            Directory.Delete(path, true);
-        }
-
-        private void UpdateMeta(ApiExhibitionVersion exhibition)
-        {
-            var currentHandlers = new List<HttpHandler>();
-
-            foreach (var lang in VersionAnswer.Languages)
-            {
-                var path = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id, lang);
-                var url = exhibition.Meta.UpdateUrl.Replace("{lang}", lang);
-                var http = new HttpRequest(url, HttpVerb.GET).Send();
-                httpHandlers.Add(http);
-                currentHandlers.Add(http);
-
-                http.Operation.completed += ar =>
-                {
-                    if (CheckNetworkErrors(http))
-                    {
-                        return;
-                    }
-
-                    if (!Directory.Exists(path))
-                    {
-                        Directory.CreateDirectory(path);
-                    }
-
-                    File.WriteAllText(Path.Combine(path, "meta.json"), http.Download.text, System.Text.Encoding.UTF8);
-                    Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
-
-                    var exhibits = JsonConvert.DeserializeObject<List<ApiExhibit>>(http.Download.text);
-                    foreach (var exhibit in exhibits)
-                    {
-                        UpdateMedia(exhibit);
-                    }
-                };
-            }
-
-            var versionPath = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id, "version.txt");
-            var version = exhibition.Meta.UpdateVersion.ToString();
-            StartCoroutine(UpdateVersionFileCoroutine(currentHandlers, versionPath, version));
-        }
-
-        private IEnumerator UpdateVersionFileCoroutine(List<HttpHandler> currentHandlers, string versionPath, string version)
-        {
-            // updates version file only if all sub files were downloaded successfully
-            yield return new WaitUntil(() => httpHandlers.All(h => h.IsDone));
-            if (httpHandlers.Any(http => http.Request.isNetworkError || http.Request.isHttpError)) yield break;
-
-            File.WriteAllText(versionPath, version);
-        }
-
-        private void UpdateMedia(ApiExhibit exhibit)
-        {
-            var mediaIDs = exhibit.Pois.Select(p => p.MediaId).Except(new List<string> { null }).ToList();
-
-            foreach (var mediaId in mediaIDs)
-            {
-                if (downloadingMedia.Contains(mediaId)) continue;
-                downloadingMedia.Add(mediaId);
-
-                var path = PathHelper.CombinePaths(PathHelper.MediaPath, mediaId);
-                var filepath = Path.Combine(path, mediaId + ".med");
-
-                // create dir if nonexistent
-                if (!Directory.Exists(path)) Directory.CreateDirectory(path);
-
-                //System.Security.Cryptography.SHA1CryptoServiceProvider
-                //System.Security.Cryptography.SHA256
-                var eTag = GenerateETag(filepath);
-
-                var url = ApiInfo.FileEndpoint.Replace("{id}", mediaId);
-                var http = new HttpRequest(url, HttpVerb.GET)
-                    .WithHeader("If-None-Match", eTag)
-                    .Send();
-
-                httpHandlers.Add(http);
-
-                http.Operation.completed += ar =>
-                {
-                    if (CheckNetworkErrors(http))
-                    {
-                        return;
-                    }
-
-                    // do nothing if unchanged
-                    if (http.Request.responseCode == 304) return;
-
-                    // gzipped files are un-gzipped automagically
-                    File.WriteAllBytes(filepath, http.Download.data);
-
-                    var subfilesHeader = http.Request.GetResponseHeader("subfiles");
-                    if (subfilesHeader != null)
-                    {
-                        string[] separator = new string[1] { ";;" };
-                        var subfiles = subfilesHeader.Split(separator, StringSplitOptions.RemoveEmptyEntries);
-                        foreach (var subfile in subfiles)
-                        {
-                            UpdateSubfile(path, mediaId, subfile);
-                        }
-                    }
-
-                    Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
-                };
-            }
-        }
-
-        private string GenerateETag(string filepath)
-        {
-            string eTag = "";
-            if (File.Exists(filepath))
-            {
-                var bytes = File.ReadAllBytes(filepath);
-                SHA256Managed hasher = new SHA256Managed();
-                byte[] hash = hasher.ComputeHash(bytes);
-                eTag = "sha256-";
-                foreach (byte x in hash)
-                {
-                    eTag += String.Format("{0:x2}", x);
-                }
-            }
-            return eTag;
-        }
-
-        private void UpdateSubfile(string path, string mediaId, string subfile)
-        {
-            var filepath = Path.Combine(path, subfile);
-            var eTag = GenerateETag(filepath);
-
-            var url = ApiInfo.FileEndpoint.Replace("{id}", mediaId) + "/" + subfile;
-            var http = new HttpRequest(url, HttpVerb.GET)
-                .WithHeader("If-None-Match", eTag)
-                .Send();
-
-            httpHandlers.Add(http);
-
-            http.Operation.completed += ar =>
-            {
-                if (CheckNetworkErrors(http))
-                {
-                    return;
-                }
-
-                // do nothing if unchanged
-                if (http.Request.responseCode == 304) return;
-
-                // gzipped files are un-gzipped automagically
-                File.WriteAllBytes(filepath, http.Download.data);
-
-                Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
-            };
-        }
-
-        private bool CheckNetworkErrors(HttpHandler http)
-        {
-            if (http.Request.isNetworkError || http.Request.isHttpError)
-            {
-                Debug.LogError(String.Format("Error while downloading\nurl: {0}\nNetwork Error: {1}\nHttp Error: {2}\nHttp Response Code: {3}",
-                    http.Request.url,
-                    http.Request.isNetworkError,
-                    http.Request.isHttpError,
-                    http.Request.responseCode));
-
-                UpdateDialog.SetActive(true);
-                UpdateFailedDialog.SetActive(true);
-
-                //TODO decide on level of detail for user notification 
-                //var all = UpdateFailedDialog.GetComponentsInChildren<TextMeshProUGUI>().ToList();
-                //var errorText = all.First(c => c.name == "ErrorText");
-                //errorText.text = string.Format("Fehlercode: {0}", http.Request.responseCode.ToString());
-
-                return true;
-            }
-            return false;
-        }
-
-        private void UpdateTracker(ApiExhibitionVersion exhibition)
-        {
-            //TODO test UpdateTracker
-            var path = PathHelper.CombinePaths(PathHelper.ExhibitionPath, exhibition.Id);
-            var url = exhibition.Tracker.UpdateUrl;
-            var http = new HttpRequest(url, HttpVerb.GET).Send();
-            httpHandlers.Add(http);
-
-            http.Operation.completed += ar =>
-            {
-                if (CheckNetworkErrors(http))
-                {
-                    return;
-                }
-
-                if (!Directory.Exists(path))
-                {
-                    Directory.CreateDirectory(path);
-                }
-
-                //TODO unzip, should be tracker.xml and tracker.dat files
-                var type = http.Request.GetResponseHeader("Content-Type");
-                File.WriteAllBytes(Path.Combine(path, "tracker.zip"), http.Download.data);
-                Debug.Log(string.Format("{1}-DONE with {0}", url, Time.realtimeSinceStartup));
-            };
-        }
-
-        public void LoadMainScene()
-        {
-            Debug.Log("Loading mainScene");
-            UnityEngine.SceneManagement.SceneManager.LoadScene("mainScene");
-        }
-
-        private DateTime downloadEndedTime = DateTime.Now.AddYears(1);
-
-        void Update()
-        {
-            // Update the download progress bar
-            if (httpHandlers.Count > 0)
-            {
-                float downloadProgress = 0f;
-                httpHandlers.ForEach(h =>
-                {
-                    downloadProgress += h.Operation.progress;
-                });
-
-                downloadProgress /= httpHandlers.Count;
-
-                // operation.progress is bugged and goes all over the place:
-                //      jumps from 0 to 1 and back despite not being done 
-                //      steadily increases from 0,5 to 0,99 and resets to 0,5 multiple times (5-15x) during a single download
-
-                // update progress bar and ignore all negative changes
-                ProgressBar.value = ProgressBar.value < downloadProgress ? downloadProgress : ProgressBar.value;
-            }
-
-            // Continue to Main Scene after all downloads are done and this.afterDownloadWaitTime seconds have passed without any new downloads triggering.
-            if (httpHandlers.All(h => h.IsDone) && !UpdateFailedDialog.activeInHierarchy)
-            {
-                if (downloadEndedTime > DateTime.Now)
-                {
-                    Debug.Log("Done Updating");
-                    UpdateCompletedDialog.SetActive(true);
-                    downloadEndedTime = DateTime.Now;
-                }
-                if (downloadEndedTime.AddSeconds(afterDownloadWaitTime) < DateTime.Now)
-                {
-                    LoadMainScene();
-                }
-            }
-            else
-            {
-                UpdateCompletedDialog.SetActive(false);
-                downloadEndedTime = DateTime.Now.AddYears(1);
-            }
-        }
-    }
-}

Assets/RothenburgAR/Sprites/Icons/baseline-3d_rotation-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-close-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-format_size-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-help-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-info-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-language-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-palette-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-refresh-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-settings-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/RothenburgAR/Sprites/Icons/baseline-visibility-512px.png.meta

@@ -87,6 +87,16 @@ TextureImporter:
     allowsAlphaSplitting: 0
     overridden: 0
     androidETC2FallbackOverride: 0
+  - buildTarget: iPhone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
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+    allowsAlphaSplitting: 0
+    overridden: 0
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   spriteSheet:
     serializedVersion: 2
     sprites: []

Assets/mainScene.unity

@@ -23,7 +23,7 @@ RenderSettings:
   m_AmbientSkyColor: {r: 0.212, g: 0.227, b: 0.259, a: 1}
   m_AmbientEquatorColor: {r: 0.114, g: 0.125, b: 0.133, a: 1}
   m_AmbientGroundColor: {r: 0.047, g: 0.043, b: 0.035, a: 1}
-  m_AmbientIntensity: 1
+  m_AmbientIntensity: 0
   m_AmbientMode: 0
   m_SubtractiveShadowColor: {r: 0.42, g: 0.478, b: 0.627, a: 1}
   m_SkyboxMaterial: {fileID: 10304, guid: 0000000000000000f000000000000000, type: 0}
@@ -51,8 +51,8 @@ LightmapSettings:
     m_AlbedoBoost: 1
     m_TemporalCoherenceThreshold: 1
     m_EnvironmentLightingMode: 0
-    m_EnableBakedLightmaps: 1
+    m_EnableBakedLightmaps: 0
-    m_EnableRealtimeLightmaps: 1
+    m_EnableRealtimeLightmaps: 0
   m_LightmapEditorSettings:
     serializedVersion: 9
     m_Resolution: 2

ProjectSettings/EditorBuildSettings.asset

@@ -5,9 +5,6 @@ EditorBuildSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 2
   m_Scenes:
-  - enabled: 1
-    path: Assets/updaterScene.unity
-    guid: 974eb12c09ab8804392cefb59d4a0de8
   - enabled: 1
     path: Assets/mainScene.unity
     guid: 26344e586197d424bb80c37c69080abb

ProjectSettings/GraphicsSettings.asset

@@ -39,6 +39,7 @@ GraphicsSettings:
   - {fileID: 4800000, guid: 3a1c68c8292caf046bd21158886c5e40, type: 3}
   - {fileID: 207, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 17000, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 16002, guid: 0000000000000000f000000000000000, type: 0}
   m_PreloadedShaders: []
   m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,
     type: 0}

ProjectSettings/ProjectSettings.asset

@@ -168,9 +168,9 @@ PlayerSettings:
   AndroidPreferredInstallLocation: 1
   aotOptions: 
   stripEngineCode: 1
-  iPhoneStrippingLevel: 0
+  iPhoneStrippingLevel: 1
   iPhoneScriptCallOptimization: 0
-  ForceInternetPermission: 0
+  ForceInternetPermission: 1
   ForceSDCardPermission: 1
   CreateWallpaper: 0
   APKExpansionFiles: 0
@@ -248,7 +248,7 @@ PlayerSettings:
   AndroidKeystoreName: 
   AndroidKeyaliasName: 
   AndroidTVCompatibility: 0
-  AndroidIsGame: 1
+  AndroidIsGame: 0
   AndroidEnableTango: 0
   androidEnableBanner: 1
   androidUseLowAccuracyLocation: 0