First steps in reorganizing the project, so that assets and game state are managed separately from the interop modules. This will allow for a clearer picture of where gameplay-related interactions should take place, and how entities and such should be linked to their associated assets.

Assets/Scripts/Game.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 3f9fc42dc891bc547be3172cab9c8ade
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Game/GameAssets.cs

@@ -0,0 +1,88 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class GameAssets
+{
+    private readonly UniQuake uq;
+    
+    private readonly Dictionary<uint, Texture2D> textures = new Dictionary<uint, Texture2D>();
+    
+    private BrushModel worldModel;
+    private readonly List<BrushModel> brushModels = new List<BrushModel>();
+    private readonly List<AliasModel> aliasModels = new List<AliasModel>();
+    
+    private uint nextTexNum = 0x10001;
+    
+    public GameAssets(UniQuake uniQuake)
+    {
+        uq = uniQuake;
+    }
+
+    public uint SetTexture(uint texNum, Texture2D texture)
+    {
+        if (texNum == 0)
+        {
+            // Assign a new texture number
+            while (textures.ContainsKey(nextTexNum))
+                ++nextTexNum;
+
+            texNum = nextTexNum++;
+        }
+        
+        textures[texNum] = texture;
+        return texNum;
+    }
+
+    public bool TryGetTexture(uint texNum, out Texture2D texture)
+    {
+        texture = null;
+        return texNum > 0 && textures.TryGetValue(texNum, out texture);
+    }
+
+    public void AddAliasModel(AliasModel aliasModel)
+    {
+        aliasModels.Add(aliasModel);
+    }
+
+    public void AddBrushModel(BrushModel brushModel)
+    {
+        brushModels.Add(brushModel);
+    }
+
+    public void SetWorldModel(BrushModel brushModel)
+    {
+        worldModel?.Dispose();     // TODO: also need to clean up any GameObjects made from this
+        worldModel = brushModel;
+    }
+
+    public void Destroy()
+    {
+        if (worldModel != null)
+        {
+            worldModel.Dispose();
+            worldModel = null;
+        }
+        
+        foreach (var brushModel in brushModels)
+        {
+            // brushModel.Dispose();    // TODO: reactivate when done testing in editor
+        }
+        
+        brushModels.Clear();
+
+        foreach (var aliasModel in aliasModels)
+        {
+            // aliasModel.Dispose();    // TODO: reactivate when done testing in editor
+        }
+        
+        aliasModels.Clear();
+
+        foreach (var texture in textures.Values)
+        {
+            // Object.Destroy(texture); // TODO: reactivate when done testing in editor
+        }
+        
+        textures.Clear();
+    }
+}

Assets/Scripts/Game/GameAssets.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 3821114b8377e3a458eebb55f1363672
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Game/GameState.cs

@@ -0,0 +1,13 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class GameState
+{
+    private readonly UniQuake uq;
+
+    public GameState(UniQuake uniQuake)
+    {
+        uq = uniQuake;
+    }
+}

Assets/Scripts/Game/GameState.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 27dd2ba6514f88c4bb767eb1765546de
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Modules/GameModule.Interop.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using UnityEngine;
+
+public partial class GameModule : CallbackHandler<GameModule>
+{
+    private void BuildCallbacks()
+    {
+        var callbacks = new Callbacks
+        {
+            target = TargetPtr,
+        };
+        
+        RegisterCallbacks(callbacks);
+    }
+
+    /// <summary>
+    /// This matches unity_gamecalls_t from mod_uniquake.c in native code.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 0)]
+    private class Callbacks
+    {
+        public IntPtr target;
+    }
+}

Assets/Scripts/Modules/GameModule.Interop.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: b8d9b402c1d6a3d4a8634a85bece7d77
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Modules/GameModule.cs

@@ -0,0 +1,14 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public partial class GameModule
+{
+    private readonly UniQuake uq;
+    
+    public GameModule(UniQuake uniQuake)
+    {
+        uq = uniQuake;
+        BuildCallbacks();
+    }
+}

Assets/Scripts/Modules/GameModule.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 204138db5cbbd944ebc9bd1c5adfadcc
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Modules/RenderModule.Interop.cs

@@ -15,6 +15,8 @@ public partial class RenderModule: CallbackHandler<RenderModule>
 
             UploadAliasModel = CreateCallback<UploadAliasModelCallback>(Callback_UploadAliasModel),
             UploadBrushModel = CreateCallback<UploadBrushModelCallback>(Callback_UploadBrushModel),
+            UploadWorldModel = CreateCallback<UploadWorldModelCallback>(Callback_UploadWorldModel),
+            
             UploadTexture = CreateCallback<UploadTextureCallback>(Callback_UploadTexture),
             SetupView = CreateCallback<SetupViewCallback>(Callback_SetupView),
         };
@@ -32,6 +34,7 @@ public partial class RenderModule: CallbackHandler<RenderModule>
 
         public IntPtr UploadAliasModel;
         public IntPtr UploadBrushModel;
+        public IntPtr UploadWorldModel;
         public IntPtr UploadTexture;
         public IntPtr SetupView;
     }
@@ -97,6 +100,18 @@ public partial class RenderModule: CallbackHandler<RenderModule>
         return GetSelf(target).UploadBrushModel(model);
     }
     
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate int UploadWorldModelCallback(IntPtr target, QModel model);
+
+    [MonoPInvokeCallback(typeof(UploadBrushModelCallback))]
+    private static int Callback_UploadWorldModel(IntPtr target, QModel model)
+    {
+        if (model == null || model.type != QModelType.Brush)
+            return -1;
+
+        return GetSelf(target).UploadWorldModel(model);
+    }
+
     [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
     private delegate bool UploadTextureCallback(IntPtr target, QGLTexture texture, IntPtr data, ref uint texNum);
 

Assets/Scripts/Modules/RenderModule.cs

@@ -5,11 +5,6 @@ using UnityEngine.Rendering;
 public partial class RenderModule
 {
     private readonly UniQuake uq;
-    private readonly List<BrushModel> brushModels = new List<BrushModel>();
-    private readonly List<AliasModel> aliasModels = new List<AliasModel>();
-    private readonly Dictionary<uint, Texture2D> textures = new Dictionary<uint, Texture2D>();
-
-    private BrushModel worldModel;
 
     public RenderModule(UniQuake uniQuake)
     {
@@ -20,33 +15,6 @@ public partial class RenderModule
         globalZPos -= 256f;
     }
 
-    public override void Destroy()
-    {
-        base.Destroy();
-
-        foreach (var brushModel in brushModels)
-        {
-            // brushModel.Dispose();    // TODO: reactivate when done testing in editor
-        }
-        
-        brushModels.Clear();
-        worldModel = null;
-
-        foreach (var aliasModel in aliasModels)
-        {
-            // aliasModel.Dispose();    // TODO: reactivate when done testing in editor
-        }
-        
-        aliasModels.Clear();
-
-        foreach (var texture in textures.Values)
-        {
-            // Object.Destroy(texture); // TODO: reactivate when done testing in editor
-        }
-        
-        textures.Clear();
-    }
-
     private float xPos = -2048f;
     private float zPos = 0f;
     private static float globalZPos = 0f;
@@ -66,7 +34,8 @@ public partial class RenderModule
         string modelName = System.IO.Path.GetFileNameWithoutExtension(name);
         AliasModel aliasModel = new AliasModel(modelName, frameType);
         aliasModel.ImportMeshData(header, poseVertices, triangles, stVertices);
-        aliasModels.Add(aliasModel);
+        
+        uq.GameAssets.AddAliasModel(aliasModel);
 
         var go = new GameObject(modelName);
         go.transform.SetPositionAndRotation(new Vector3(xPos, 0, zPos), Quaternion.identity);
@@ -75,18 +44,18 @@ public partial class RenderModule
 
         var material = new Material(Shader.Find("Universal Render Pipeline/Simple Lit"));
         uint texNum = glTextures[0][0].texNum;
-        if (texNum > 0 && textures.ContainsKey(texNum))
+        if (uq.GameAssets.TryGetTexture(texNum, out var texture))
         {
-            material.mainTexture = textures[texNum];
+            material.mainTexture = texture;
         }
 
         if (fbTextures != null && fbTextures[0] != null && fbTextures[0][0] != null)
         {
             var fbTexNum = fbTextures[0][0].texNum;
-            if (fbTexNum > 0 && textures.ContainsKey(fbTexNum))
+            if (uq.GameAssets.TryGetTexture(fbTexNum, out var fbTexture))
             {
                 material.EnableKeyword("_EMISSION");
-                material.SetTexture("_EmissionMap", textures[fbTexNum]);
+                material.SetTexture("_EmissionMap", fbTexture);
                 material.SetColor("_EmissionColor", Color.white);
             }
         }
@@ -119,7 +88,7 @@ public partial class RenderModule
         }
 
         xPos += 128f;
-        return aliasModels.Count;
+        return 1;
     }
 
     private int UploadBrushModel(QModel model)
@@ -129,6 +98,20 @@ public partial class RenderModule
         var brushModel = new BrushModel(model.name);
         brushModel.ImportMeshData(model);
         
+        uq.GameAssets.AddBrushModel(brushModel);
+        
+        return 1;
+    }
+
+    private int UploadWorldModel(QModel model)
+    {
+        Debug.Log($"World model '{model.name}' with {model.numVertices} vertices, {model.numEdges} edges, {model.numSurfaces} surfaces");
+
+        var brushModel = new BrushModel(model.name);
+        brushModel.ImportMeshData(model);
+        
+        uq.GameAssets.SetWorldModel(brushModel);
+
         // DEBUG
         var worldGO = new GameObject(model.name);
         for (int i = 0; i < brushModel.SubModelCount; ++i)
@@ -147,9 +130,9 @@ public partial class RenderModule
 
                 var material = new Material(Shader.Find("Universal Render Pipeline/Simple Lit"));
                 uint texNum = surfaceMesh.Texture.TextureNum;
-                if (texNum > 0 && textures.ContainsKey(texNum))
+                if (uq.GameAssets.TryGetTexture(texNum, out var texture))
                 {
-                    material.mainTexture = textures[texNum];
+                    material.mainTexture = texture;
                 }
 
                 var mr = meshGO.AddComponent<MeshRenderer>();
@@ -161,12 +144,9 @@ public partial class RenderModule
             }
         }
 
-        brushModels.Add(brushModel);
-        return brushModels.Count;
+        return 1;
     }
 
-    private uint nextTexNum = 0x10001;
-    
     private bool UploadTexture(QGLTexture texture, byte[] data, ref uint texNum)
     {
         Debug.Log($"Texture '{texture.name}' with dimensions {texture.width}x{texture.height}, data size = {data.Length} bytes");
@@ -174,21 +154,12 @@ public partial class RenderModule
         if (texture.width == 0 || texture.height == 0)
             return false;
 
-        if (texNum == 0)
-        {
-            // Assign a new texture number
-            while (textures.ContainsKey(nextTexNum))
-                ++nextTexNum;
-
-            texNum = nextTexNum++;
-        }
-
         var tex = new Texture2D((int)texture.width, (int)texture.height, TextureFormat.RGBA32, texture.flags.HasFlag(QTexPrefs.Mipmap));
         tex.name = texture.name;
         tex.SetPixelData(data, 0);
         tex.Apply();
 
-        textures[texNum] = tex;
+        texNum = uq.GameAssets.SetTexture(texNum, tex);
         return true;
     }
     

Assets/Scripts/UniQuake.cs

@@ -12,6 +12,7 @@ public partial class UniQuake: MonoBehaviour
     private QuakeParms quakeParms;
     private SystemModule systemModule;
     private RenderModule renderModule;
+    private GameModule gameModule;
 
     private bool initialized = false;
     private double startTime;
@@ -30,6 +31,9 @@ public partial class UniQuake: MonoBehaviour
     /// </summary>
     public double CurrentTime => Time.realtimeSinceStartupAsDouble - startTime;
     
+    public GameAssets GameAssets { get; private set; }
+    public GameState GameState { get; private set; }
+
     private Action<string> logHandler;
     private StringBuilder logBuffer = new StringBuilder();
 
@@ -39,15 +43,19 @@ public partial class UniQuake: MonoBehaviour
         
         systemModule = new SystemModule(this);
         renderModule = new RenderModule(this);
+        gameModule = new GameModule(this);
+
+        GameAssets = new GameAssets(this);
+        GameState = new GameState(this);
         
         LoadLibrary();
 
         List<string> arguments = new List<string>
         {
             "",
-            "-window",
-            "-width", "1440",
-            "-height", "1080",
+            //"-fullscreen", "-width", "1920", "-height", "1080",
+            "-window", "-width", "1440", "-height", "1080",
+            //"-window", "-width", "2240", "-height", "1260",
         };
 
         switch (BaseGame)

engine/Quake/gl_model.h

@@ -518,5 +518,6 @@ void Mod_SetExtraFlags (qmodel_t *mod);
 
 int UQ_GL_UploadAliasModel(qmodel_t *model, aliashdr_t *aliashdr, aliasframetype_t frametype, trivertx_t **poseVerts, mtriangle_t *triangles, stvert_t *stVerts);
 int UQ_GL_UploadBrushModel(qmodel_t *model);
+int UQ_GL_UploadWorldModel(qmodel_t *model);
 
 #endif	// __MODEL__

engine/Quake/gl_rmisc.c

@@ -404,7 +404,7 @@ void R_NewMap (void)
 	//ericw -- no longer load alias models into a VBO here, it's done in Mod_LoadAliasModel
 #endif	// USE_OPENGL
 
-	UQ_GL_UploadBrushModel(cl.worldmodel);
+	UQ_GL_UploadWorldModel(cl.worldmodel);
 
 	r_framecount = 0; //johnfitz -- paranoid?
 	r_visframecount = 0; //johnfitz -- paranoid?

engine/UniQuake/gl_uniquake.c

@@ -9,6 +9,7 @@ typedef struct unity_glcalls_s
 
 	int(*UploadAliasModel)(void *target, const char *name, aliashdr_t *aliashdr, aliasframetype_t frametype, maliasframedesc_t *frames, trivertx_t **poseVerts, mtriangle_t *triangles, stvert_t *stVerts);
 	int(*UploadBrushModel)(void *target, qmodel_t *model);
+	int(*UploadWorldModel)(void *target, qmodel_t *model);
 	qboolean(*UploadTexture)(void *target, gltexture_t *texture, unsigned *data, GLuint *texnum);
 	void(*SetupView)(void *target, vec3_t origin, vec3_t angles, mleaf_t *viewLeaf);
 } unity_glcalls_t;
@@ -27,6 +28,11 @@ int UQ_GL_UploadBrushModel(qmodel_t *model)
 	return unity_glcalls->UploadBrushModel(unity_glcalls->target, model);
 }
 
+int UQ_GL_UploadWorldModel(qmodel_t *model)
+{
+	return unity_glcalls->UploadWorldModel(unity_glcalls->target, model);
+}
+
 qboolean UQ_GL_UploadTexture(gltexture_t *texture, unsigned *data)
 {
 	// Allow UniQuake to either sync up its internal texture reference number, or assign a new one.