add interface functions

Emulator/BMD.File.Emulator/Bmd/BmdBuilderFactory.cs

@@ -62,6 +62,21 @@ public void AddFromFolders(string redirectorFolder)
         }
     }
 
+    public void AddFile(string fileName, string filePath, string dirPath, string route)
+    {
+        if (fileName.Equals(Constants.ArgsFile, StringComparison.OrdinalIgnoreCase))
+            OverrideCompilerArgs(filePath);
+
+        if (!fileName.EndsWith(Constants.MessageExtension, StringComparison.OrdinalIgnoreCase))
+            return;
+
+        RouteFileTuples.Add(new RouteGroupTuple()
+        {
+            Route = new Route(route),
+            File = filePath
+        });
+    }
+
     /// <summary>
     /// Tries to create a BMD from a given route.
     /// </summary>

Emulator/BMD.File.Emulator/BmdEmulator.cs

@@ -160,6 +160,10 @@ private void DumpFile(string route, Stream stream)
     }
 
     internal List<RouteGroupTuple> GetInput() => _builderFactory.RouteFileTuples;
+
+    internal void AddFromFolders(string dir) => _builderFactory.AddFromFolders(dir);
+
+    internal void AddFile(string file, string route) => _builderFactory.AddFile(Path.GetFileName(file), file, Path.GetDirectoryName(file)!, route);
 }
 
 public class AtlusLogListener : LogListener

Emulator/BMD.File.Emulator/BmdEmulatorApi.cs

@@ -92,4 +92,14 @@ public bool TryCreateFromBmd(string sourcePath, string route, string destination
         _framework.RegisterVirtualFile(destinationPath, emulated!, false);
         return true;
     }
+
+    public void AddFile(string file, string route)
+    {
+        _bmdEmulator.AddFile(file, route);
+    }
+
+    public void AddDirectory(string dir)
+    {
+        _bmdEmulator.AddFromFolders(dir);
+    }
 }

Emulator/Interfaces/BMD.File.Emulator.Interfaces/IBmdEmulator.cs

@@ -30,4 +30,16 @@ public interface IBmdEmulator
     /// <param name="destinationPath">The path where the emulated bmd file should be put</param>
     public void RegisterBmd(string sourcePath, string destinationPath);
 
+    /// <summary>
+    /// Adds a new file to be used when compiling bmds
+    /// </summary>
+    /// <param name="file">The path to the file to add</param>
+    /// <param name="route">The route the file is in</param>
+    public void AddFile(string file, string route);
+
+    /// <summary>
+    /// Adds a directory to BMD Emulator so it's like the files were in FEmulator\BMD
+    /// </summary>
+    /// <param name="dir">The directory to add the files from</param>
+    public void AddDirectory(string dir);
 }

FileEmulationFramework.Tests/Emulators/BMD/BmdEmulatorTests.cs

@@ -1,5 +1,6 @@
 using AtlusScriptLibrary.Common.Libraries;
 using AtlusScriptLibrary.Common.Text.Encodings;
+using AtlusScriptLibrary.MessageScriptLanguage;
 using BMD.File.Emulator.Bmd;
 using FileEmulationFramework.Lib.Utilities;
 using System;

FileEmulationFramework.Tests/FileEmulationFramework.Tests.csproj

@@ -77,6 +77,9 @@
   </ItemGroup>
 
   <ItemGroup>
+    <None Update="Emulators\BMD\Assets\datDressHelp.bmd">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
     <None Update="Emulators\BMD\Assets\E722_103.BMD">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>