Organize alias model textures into skins and animation frames

Assets/Scripts/Game/Entity.cs

@@ -143,7 +143,8 @@ public class Entity
             meshRenderer.enabled = true;
         }
 
-        var textures = aliasModel.Textures;
-        visualStyle.SetAliasModelTextures(material, textures.MainTexture, textures.FullBrightTexture);
+        var textures = aliasModel.Textures.PrimaryTextures;
+        if (textures != null)
+            visualStyle.SetAliasModelTextures(material, textures.MainTexture, textures.FullBrightTexture);
     }
 }

Assets/Scripts/Modules/RenderModule.cs

@@ -20,25 +20,10 @@ public partial class RenderModule
 
         AliasModel aliasModel = new AliasModel(name, header, frameType);
         aliasModel.ImportMeshData(poseVertices, triangles, stVertices);
+        aliasModel.Textures.Import(uq.GameAssets, glTextures, fbTextures);
         
         uq.GameAssets.AddAliasModel(aliasModel);
 
-        // DEBUG kept for reference for the moment, how to address skins & texture frames, and full-bright textures
-        uint texNum = glTextures[0][0].texNum;
-        if (uq.GameAssets.TryGetTexture(texNum, out var texture))
-        {
-            aliasModel.Textures.MainTexture = texture;
-        }
-
-        if (fbTextures != null && fbTextures[0] != null && fbTextures[0][0] != null)
-        {
-            var fbTexNum = fbTextures[0][0].texNum;
-            if (uq.GameAssets.TryGetTexture(fbTexNum, out var fbTexture))
-            {
-                aliasModel.Textures.FullBrightTexture = fbTexture;
-            }
-        }
-        
         return 1;
     }
 

Assets/Scripts/Support/TextureSet.cs

@@ -4,9 +4,79 @@ using UnityEngine;
 
 public class TextureSet
 {
-    public Texture2D MainTexture { get; set; }
+    public List<TextureSkin> Skins { get; } = new List<TextureSkin>();
 
-    public Texture2D FullBrightTexture { get; set; }
+    public TexturePair PrimaryTextures => Skins.Count > 0 && Skins[0].Frames.Count > 0 ? Skins[0].Frames[0] : null;
 
-    // TODO: organize into skins, frames/groups
+    public bool Import(GameAssets assets, QGLTexture[][] textures, QGLTexture[][] fullBrights)
+    {
+        if (textures == null)
+            return false;
+
+        for (int skinIndex = 0; skinIndex < textures.Length; skinIndex++)
+        {
+            if (textures[skinIndex] == null)
+                break;
+
+            var skin = new TextureSkin();
+            if (skin.Import(assets, textures[skinIndex],
+                fullBrights != null && skinIndex < fullBrights.Length ? fullBrights[skinIndex] : null))
+            {
+                Skins.Add(skin);
+            }
+        }
+
+        return true;
+    }
+}
+
+public class TextureSkin
+{
+    public List<TexturePair> Frames { get; } = new List<TexturePair>();
+
+    public bool Import(GameAssets assets, QGLTexture[] textures, QGLTexture[] fullBrights)
+    {
+        if (textures == null)
+            return false;
+
+        for (int frameIndex = 0; frameIndex < textures.Length; frameIndex++)
+        {
+            if (textures[frameIndex] == null)
+                break;
+
+            var frame = new TexturePair();
+            if (frame.Import(assets, textures[frameIndex],
+                fullBrights != null && frameIndex < fullBrights.Length ? fullBrights[frameIndex] : null))
+            {
+                Frames.Add(frame);
+            }
+        }
+
+        return true;
+    }
+}
+
+public class TexturePair
+{
+    public Texture2D MainTexture { get; private set; }
+    
+    public Texture2D FullBrightTexture { get; private set; }
+
+    public bool Import(GameAssets assets, QGLTexture texture, QGLTexture fullBright)
+    {
+        if (texture == null)
+            return false;
+        
+        if (assets.TryGetTexture(texture.texNum, out var mainTexture))
+        {
+            MainTexture = mainTexture;
+        }
+
+        if (fullBright != null && assets.TryGetTexture(fullBright.texNum, out var fullBrightTexture))
+        {
+            FullBrightTexture = fullBrightTexture;
+        }
+
+        return true;
+    }
 }