Initial commit: Star of Words Unity project

Snapshot of the existing Unity 6 language-learning word game before any
refactoring. Adds Unity .gitignore and .gitattributes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/GoogleMobileAds/Editor/GoogleMobileAdsSettings.cs

@@ -0,0 +1,158 @@
+using System;
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+
+namespace GoogleMobileAds.Editor
+{
+  internal class GoogleMobileAdsSettings : ScriptableObject
+  {
+    private const string MobileAdsSettingsResDir = "Assets/GoogleMobileAds/Resources";
+
+    private const string MobileAdsSettingsFile = "GoogleMobileAdsSettings";
+
+    private const string MobileAdsSettingsFileExtension = ".asset";
+
+    public enum GmaAndroidSdk
+    {
+      Standard = 0,
+      NextGen = 1
+    }
+
+    internal static GoogleMobileAdsSettings LoadInstance()
+    {
+      // Read from resources.
+      var instance = Resources.Load<GoogleMobileAdsSettings>(MobileAdsSettingsFile);
+
+      // Create instance if null.
+      if (instance == null)
+      {
+        Directory.CreateDirectory(MobileAdsSettingsResDir);
+        instance = ScriptableObject.CreateInstance<GoogleMobileAdsSettings>();
+        string assetPath = Path.Combine(MobileAdsSettingsResDir,
+                                        MobileAdsSettingsFile + MobileAdsSettingsFileExtension);
+        AssetDatabase.CreateAsset(instance, assetPath);
+        AssetDatabase.SaveAssets();
+      }
+
+      return instance;
+    }
+
+    [SerializeField]
+    private string adMobAndroidAppId = string.Empty;
+
+    [SerializeField]
+    private string adMobIOSAppId = string.Empty;
+
+    [SerializeField]
+    private bool enableKotlinXCoroutinesPackagingOption = true;
+
+    [SerializeField]
+    private bool enableGradleBuildPreProcessor = true;
+
+    [SerializeField]
+    private bool disableOptimizeInitialization;
+
+    [SerializeField]
+    private bool disableOptimizeAdLoading;
+
+    [SerializeField]
+    private string userTrackingUsageDescription;
+
+    [SerializeField]
+    private string userLanguage = "en";
+
+    [SerializeField]
+    private bool overrideDefaultGmaAndroidSdk = false;
+
+    [SerializeField]
+    private int selectedGmaAndroidSdk = 0;
+
+    public string GoogleMobileAdsAndroidAppId
+    {
+      get { return adMobAndroidAppId; }
+
+      set { adMobAndroidAppId = value; }
+    }
+
+    public bool EnableGradleBuildPreProcessor
+    {
+      get { return enableGradleBuildPreProcessor; }
+
+      set { enableGradleBuildPreProcessor = value; }
+    }
+
+    public bool EnableKotlinXCoroutinesPackagingOption
+    {
+      get { return enableKotlinXCoroutinesPackagingOption; }
+
+      set { enableKotlinXCoroutinesPackagingOption = value; }
+    }
+
+    public string GoogleMobileAdsIOSAppId
+    {
+      get { return adMobIOSAppId; }
+
+      set { adMobIOSAppId = value; }
+    }
+
+    public bool DisableOptimizeInitialization
+    {
+      get { return disableOptimizeInitialization; }
+
+      set { disableOptimizeInitialization = value; }
+    }
+
+    public bool DisableOptimizeAdLoading
+    {
+      get { return disableOptimizeAdLoading; }
+
+      set { disableOptimizeAdLoading = value; }
+    }
+
+    public string UserTrackingUsageDescription
+    {
+      get { return userTrackingUsageDescription; }
+
+      set { userTrackingUsageDescription = value; }
+    }
+
+    public string UserLanguage
+    {
+      get { return userLanguage; }
+
+      set { userLanguage = value; }
+    }
+
+    public bool OverrideDefaultGmaAndroidSdk
+    {
+      get { return overrideDefaultGmaAndroidSdk; }
+
+      set { overrideDefaultGmaAndroidSdk = value; }
+    }
+
+    public int SelectedGmaAndroidSdk
+    {
+      get { return selectedGmaAndroidSdk; }
+
+      set { selectedGmaAndroidSdk = value; }
+    }
+
+    /// <summary>
+    /// Returns the active GMA Android SDK architecture.
+    /// This property is decoupled from the stored value to allow easily switching the default
+    /// to Next-Gen in the next phase of migration for users who haven't overridden the default.
+    /// </summary>
+    public GmaAndroidSdk EffectiveGmaAndroidSdk
+    {
+      get
+      {
+        if (overrideDefaultGmaAndroidSdk)
+        {
+          return (GmaAndroidSdk)selectedGmaAndroidSdk;
+        }
+        return GmaAndroidSdk.Standard;
+      }
+    }
+  }
+}