feat: AtsEx.Callerが読み込まれたときもレガシーモードへ移行するように

.github/workflows/build.yml

@@ -78,6 +78,7 @@ jobs:
         run: |
           mkdir Target\LocalReferences\Legacy
           copy Legacy\AtsEx\bin\Release\AtsEx.dll Target\LocalReferences\Legacy\
+          copy Legacy\AtsEx.Launcher\bin\Release\AtsEx.Launcher.dll Target\LocalReferences\Legacy\
           msbuild Target\BveEx.sln /p:Configuration=Release /p:DebugSymbols=false /p:DebugType=none
       - name: Package
         run: |

BveEx.Launcher/BveEx.Launcher.csproj

@@ -74,6 +74,7 @@
     <Compile Include="InputEventArgs.cs" />
     <Compile Include="LauncherVersionChecker.cs" />
     <Compile Include="LegacyCoreHost.cs" />
+    <Compile Include="OldLauncherLoader.cs" />
     <Compile Include="Resources.cs" />
     <Compile Include="VersionSelector.cs" />
     <Compile Include="Hosting\TargetBveFinder.cs" />

BveEx.Launcher/OldLauncherLoader.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BveEx.Launcher
+{
+    internal class OldLauncherLoader : IDisposable
+    {
+        private static readonly string FileName = "AtsEx.Launcher";
+        private readonly string OldLauncherPath;
+
+        public OldLauncherLoader()
+        {
+            string launcherPath = Assembly.GetExecutingAssembly().Location;
+            OldLauncherPath = Path.Combine(Path.GetDirectoryName(launcherPath), FileName + ".dll");
+
+            AppDomain.CurrentDomain.AssemblyResolve += OnAssemblyResolve;
+        }
+
+        public void Dispose()
+        {
+            AppDomain.CurrentDomain.AssemblyResolve -= OnAssemblyResolve;
+        }
+
+        private Assembly OnAssemblyResolve(object sender, ResolveEventArgs e)
+        {
+            AssemblyName assemblyName = new AssemblyName(e.Name);
+            if (assemblyName.Name != FileName) return null;
+            Assembly assembly = Assembly.LoadFrom(OldLauncherPath);
+            return assembly;
+        }
+    }
+}

BveEx.Launcher/VersionSelector.cs

@@ -34,9 +34,12 @@ static VersionSelector()
             LegacyFilePath = Path.Combine(RootDirectory, ".LEGACY");
         }
 
+
         private readonly Process SplashProcess;
         private readonly SplashFormInfo SplashForm;
 
+        private readonly OldLauncherLoader OldLauncherLoader;
+
         public ICoreHost CoreHost { get; }
 
         public VersionSelector(Assembly callerAssembly)
@@ -57,6 +60,8 @@ public VersionSelector(Assembly callerAssembly)
                 SplashProcess.Refresh();
             }
 
+            OldLauncherLoader = new OldLauncherLoader();
+
             SplashForm = (SplashFormInfo)Activator.GetObject(typeof(SplashFormInfo), $"ipc://{channelGuid}/{nameof(SplashFormInfo)}");
             SplashForm.ProgressText = $"{productName} を探しています...";
 
@@ -157,6 +162,7 @@ public void Dispose()
             }
             catch { }
 
+            OldLauncherLoader.Dispose();
             CoreHost.Dispose();
         }
     }

BveEx/BveEx.csproj

@@ -39,6 +39,10 @@
     <Reference Include="0Harmony, Version=2.2.2.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Lib.Harmony.2.2.2\lib\net48\0Harmony.dll</HintPath>
     </Reference>
+    <Reference Include="AtsEx.Launcher">
+      <HintPath>..\LocalReferences\Legacy\AtsEx.Launcher.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
     <Reference Include="Irony, Version=1.1.0.0, Culture=neutral, PublicKeyToken=ca48ace7223ead47, processorArchitecture=MSIL">
       <HintPath>..\packages\Irony.1.1.0\lib\net40\Irony.dll</HintPath>
       <Private>False</Private>

BveEx/Main/BveEx.cs

@@ -65,6 +65,7 @@ static BveEx()
         public BveEx(BveTypeSet bveTypes)
         {
             BveHacker = new BveHacker(bveTypes);
+            BveHacker.ScenarioCreated += OnScenarioCreated;
             AppDomain.CurrentDomain.FirstChanceException += OnFirstChanceException;
 
             ClassMemberSet mainFormMembers = bveTypes.GetClassInfoOf<MainForm>();
@@ -83,6 +84,14 @@ public BveEx(BveTypeSet bveTypes)
             VersionFormProvider = CreateVersionFormProvider(Extensions);
         }
 
+        private void OnScenarioCreated(ScenarioCreatedEventArgs e)
+        {
+            if (!(AtsEx.Launcher.CoreHost.VehicleConfigPath is null) || !(AtsEx.Launcher.CoreHost.VehicleConfigPath is null))
+            {
+                throw new LaunchModeException();
+            }
+        }
+
         private VersionFormProvider CreateVersionFormProvider(IEnumerable<PluginBase> extensions)
             => new VersionFormProvider(BveHacker.MainFormSource, extensions, Extensions.GetExtension<IContextMenuHacker>());