Split off native interop code for the main UniQuake class into a separate partial class file as well

Assets/Scripts/UniQuake.Interop.cs

@@ -0,0 +1,78 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using UnityEngine;
+
+public partial class UniQuake
+{
+#if UNITY_EDITOR
+    private const string DllPath = "Plugins/windows/x86_64/uniquake.dll";
+#elif UNITY_STANDALONE_WIN
+    #if UNITY_64
+    private const string DllPath = "Plugins/x86_64/uniquake.dll";
+    #else
+    private const string DllPath = "Plugins/x86/uniquake.dll";
+    #endif
+#endif
+    
+    private IntPtr libraryHandle;
+    
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate void UniQuake_InitFunc(IntPtr parms, IntPtr sysCalls, IntPtr glCalls);
+    private UniQuake_InitFunc UniQuake_Init;
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate void UniQuake_UpdateFunc(float deltaTime);
+    private UniQuake_UpdateFunc UniQuake_Update;
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate void UniQuake_ShutdownFunc();
+    private UniQuake_ShutdownFunc UniQuake_Shutdown;
+
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate void UniQuake_SetFmodSystemFunc(IntPtr fmodSystem);
+    private UniQuake_SetFmodSystemFunc UniQuake_SetFmodSystem;
+
+    private void LoadLibrary()
+    {
+        string dllFile = Path.Combine(Application.dataPath, DllPath);
+
+        // Experimental code to allow running multiple instances of Quake next to each other
+        // string dllName = Path.GetFileNameWithoutExtension(dllFile);
+        // string dllExt = Path.GetExtension(dllFile);
+        // string dllCopy = Path.Combine(Application.persistentDataPath, $"{dllName}{GetInstanceID()}{dllExt}");
+        // File.Copy(dllFile, dllCopy, true);
+        // dllFile = dllCopy;
+        
+        libraryHandle = SystemLibrary.LoadLibrary(dllFile);
+        if (libraryHandle == IntPtr.Zero)
+        {
+            throw new DllNotFoundException($"Failed to load UniQuake library from path: {dllFile}, last error = {Marshal.GetLastWin32Error()}");
+        }
+
+        UniQuake_Init = LoadLibraryFunction<UniQuake_InitFunc>("UniQuake_Init");
+        UniQuake_Update = LoadLibraryFunction<UniQuake_UpdateFunc>("UniQuake_Update");
+        UniQuake_Shutdown = LoadLibraryFunction<UniQuake_ShutdownFunc>("UniQuake_Shutdown");
+        UniQuake_SetFmodSystem = LoadLibraryFunction<UniQuake_SetFmodSystemFunc>("UniQuake_SetFmodSystem");
+    }
+
+    private TDelegate LoadLibraryFunction<TDelegate>(string functionName)
+    {
+        IntPtr procAddress = SystemLibrary.GetProcAddress(libraryHandle, functionName);
+        if (procAddress == IntPtr.Zero)
+        {
+            throw new DllNotFoundException($"Could not find library function: {functionName}");
+        }
+
+        return Marshal.GetDelegateForFunctionPointer<TDelegate>(procAddress);
+    }
+
+    private void FreeLibrary()
+    {
+        if (libraryHandle != IntPtr.Zero)
+        {
+            SystemLibrary.FreeLibrary(libraryHandle);
+            libraryHandle = IntPtr.Zero;
+        }
+    }
+}

Assets/Scripts/UniQuake.Interop.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: a22391b0c55941c6b4c6fb0f8510d88e
+timeCreated: 1618223248

Assets/Scripts/UniQuake.cs

@@ -1,25 +1,13 @@
 using System;
 using System.Collections.Generic;
-using System.IO;
-using System.Runtime.InteropServices;
 using System.Text;
 using UnityEngine;
 
-public class UniQuake: MonoBehaviour
+public partial class UniQuake: MonoBehaviour
 {
-#if UNITY_EDITOR
-    private const string DllPath = "Plugins/windows/x86_64/uniquake.dll";
-#elif UNITY_STANDALONE_WIN
-    #if UNITY_64
-    private const string DllPath = "Plugins/x86_64/uniquake.dll";
-    #else
-    private const string DllPath = "Plugins/x86/uniquake.dll";
-    #endif
-#endif
+    private const int DefaultMemSize = 0x8000000;  // 128 MB of heap space
 
-    private const int MemSize = 0x8000000;  // 128 MB of heap space
-
-    private IntPtr libraryHandle;
+    public int memorySize = DefaultMemSize;
 
     private QuakeParms quakeParms;
     private SystemModule systemModule;
@@ -36,7 +24,8 @@ public class UniQuake: MonoBehaviour
     /// </summary>
     public double CurrentTime => Time.timeAsDouble - startTime;
 
-    private Action<string> logHandler; 
+    private Action<string> logHandler;
+    private StringBuilder logBuffer = new StringBuilder();
 
     void Start()
     {
@@ -83,7 +72,7 @@ public class UniQuake: MonoBehaviour
             errState = 0,
         };
         quakeParms.SetArguments(arguments.ToArray());
-        quakeParms.AllocateMemory(MemSize);
+        quakeParms.AllocateMemory(memorySize);
 
         startTime = Time.timeAsDouble;
 
@@ -169,8 +158,6 @@ public class UniQuake: MonoBehaviour
         Debug.Log(log);
     }
 
-    private StringBuilder logBuffer = new StringBuilder();
-    
     private void CollectLog(string log)
     {
         logBuffer.Append(log);
@@ -184,65 +171,6 @@ public class UniQuake: MonoBehaviour
             logBuffer.Clear();
         }
     }
-
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    private delegate void UniQuake_InitFunc(IntPtr parms, IntPtr sysCalls, IntPtr glCalls);
-    private UniQuake_InitFunc UniQuake_Init;
-
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    private delegate void UniQuake_UpdateFunc(float deltaTime);
-    private UniQuake_UpdateFunc UniQuake_Update;
-
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    private delegate void UniQuake_ShutdownFunc();
-    private UniQuake_ShutdownFunc UniQuake_Shutdown;
-
-    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    private delegate void UniQuake_SetFmodSystemFunc(IntPtr fmodSystem);
-    private UniQuake_SetFmodSystemFunc UniQuake_SetFmodSystem;
-
-    private void LoadLibrary()
-    {
-        string dllFile = Path.Combine(Application.dataPath, DllPath);
-
-        // Experimental code to allow running multiple instances of Quake next to each other
-        // string dllName = Path.GetFileNameWithoutExtension(dllFile);
-        // string dllExt = Path.GetExtension(dllFile);
-        // string dllCopy = Path.Combine(Application.persistentDataPath, $"{dllName}{GetInstanceID()}{dllExt}");
-        // File.Copy(dllFile, dllCopy, true);
-        // dllFile = dllCopy;
-        
-        libraryHandle = SystemLibrary.LoadLibrary(dllFile);
-        if (libraryHandle == IntPtr.Zero)
-        {
-            throw new DllNotFoundException($"Failed to load UniQuake library from path: {dllFile}, last error = {Marshal.GetLastWin32Error()}");
-        }
-
-        UniQuake_Init = LoadLibraryFunction<UniQuake_InitFunc>("UniQuake_Init");
-        UniQuake_Update = LoadLibraryFunction<UniQuake_UpdateFunc>("UniQuake_Update");
-        UniQuake_Shutdown = LoadLibraryFunction<UniQuake_ShutdownFunc>("UniQuake_Shutdown");
-        UniQuake_SetFmodSystem = LoadLibraryFunction<UniQuake_SetFmodSystemFunc>("UniQuake_SetFmodSystem");
-    }
-
-    private TDelegate LoadLibraryFunction<TDelegate>(string functionName)
-    {
-        IntPtr procAddress = SystemLibrary.GetProcAddress(libraryHandle, functionName);
-        if (procAddress == IntPtr.Zero)
-        {
-            throw new DllNotFoundException($"Could not find library function: {functionName}");
-        }
-
-        return Marshal.GetDelegateForFunctionPointer<TDelegate>(procAddress);
-    }
-
-    private void FreeLibrary()
-    {
-        if (libraryHandle != IntPtr.Zero)
-        {
-            SystemLibrary.FreeLibrary(libraryHandle);
-            libraryHandle = IntPtr.Zero;
-        }
-    }
 }
 
 public enum MissionPack