From 57a2daa5e4370ae2e594d579ba74dc16b38897e2 Mon Sep 17 00:00:00 2001
From: tresabhi <43380238+tresabhi@users.noreply.github.com>
Date: Tue, 25 Feb 2025 15:36:34 -0600
Subject: [PATCH] feat: hull collision mesh

---
 src/BlitzKit.CLI/Functions/Mangler.cs | 27 +++++----------------------
 src/BlitzKit.CLI/Models/MonoGltf.cs   | 14 ++++++++------
 2 files changed, 13 insertions(+), 28 deletions(-)

diff --git a/src/BlitzKit.CLI/Functions/Mangler.cs b/src/BlitzKit.CLI/Functions/Mangler.cs
index 67419526a..801dda85a 100644
--- a/src/BlitzKit.CLI/Functions/Mangler.cs
+++ b/src/BlitzKit.CLI/Functions/Mangler.cs
@@ -1,30 +1,10 @@
 using System.Data;
-using AssetRipper.TextureDecoder.Rgb.Channels;
 using Blitzkit;
 using BlitzKit.CLI.Models;
-using BlitzKit.CLI.Utils;
-using CommunityToolkit.HighPerformance;
-using CommunityToolkit.HighPerformance.Helpers;
-using CUE4Parse;
-using CUE4Parse_Conversion;
-using CUE4Parse_Conversion.Animations;
-using CUE4Parse_Conversion.Meshes;
-using CUE4Parse_Conversion.Meshes.glTF;
-using CUE4Parse_Conversion.Textures;
-using CUE4Parse_Conversion.UEFormat.Enums;
-using CUE4Parse.FileProvider.Objects;
 using CUE4Parse.UE4.Assets.Exports;
 using CUE4Parse.UE4.Assets.Exports.Engine;
-using CUE4Parse.UE4.Assets.Exports.Material;
 using CUE4Parse.UE4.Assets.Exports.StaticMesh;
-using CUE4Parse.UE4.Assets.Exports.Texture;
 using CUE4Parse.UE4.Assets.Objects;
-using CUE4Parse.UE4.Assets.Objects.Properties;
-using CUE4Parse.UE4.Assets.Utils;
-using CUE4Parse.UE4.Objects.UObject;
-using CUE4Parse.UE4.Readers;
-using CUE4Parse.UE4.Writers;
-using CUE4Parse.Utils;
 using Google.Protobuf.Collections;
 using Newtonsoft.Json.Linq;
 
@@ -52,8 +32,8 @@ namespace BlitzKit.CLI.Functions
     {
       foreach (var tankDir in nation.Directories)
       {
-        if (tankDir.Value.Name != "R90_IS_4")
-          continue;
+        // if (tankDir.Value.Name != "R90_IS_4")
+        //   continue;
 
         var tank = MangleTank(tankDir.Value);
 
@@ -73,6 +53,9 @@ namespace BlitzKit.CLI.Functions
       var hullVisualData = PropertyUtil.Get<UObject>(hull, "VisualData");
       var hullMeshSettings = PropertyUtil.Get<FStructFallback>(hullVisualData, "MeshSettings");
       var hullCollision = PropertyUtil.Get<UStaticMesh>(hullMeshSettings, "CollisionMesh");
+      MonoGltf hullCollisionGltf = new(hullCollision);
+
+      hullCollisionGltf.Write();
 
       return new() { Id = "" };
     }
diff --git a/src/BlitzKit.CLI/Models/MonoGltf.cs b/src/BlitzKit.CLI/Models/MonoGltf.cs
index b008a01f2..4046ba117 100644
--- a/src/BlitzKit.CLI/Models/MonoGltf.cs
+++ b/src/BlitzKit.CLI/Models/MonoGltf.cs
@@ -30,11 +30,13 @@ namespace BlitzKit.CLI.Models
 
   public class MonoGltf
   {
+    readonly SceneBuilder Scene;
+
     public MonoGltf(UStaticMesh staticMesh)
     {
+      Scene = new(staticMesh.Name);
       ExporterOptions options = new() { TextureFormat = ETextureFormat.Jpeg };
       staticMesh.TryConvert(out var convertedMesh);
-      SceneBuilder sceneBuilder = new(staticMesh.Name);
       var lod =
         convertedMesh.LODs.Find(lod => !lod.SkipLod) ?? throw new Exception("Failed to find lod0");
 
@@ -155,13 +157,13 @@ namespace BlitzKit.CLI.Models
           primitive.AddTriangle((v1, c1), (v2, c2), (v3, c3));
         }
 
-        sceneBuilder.AddRigidMesh(meshBuilder, Matrix4x4.Identity);
+        Scene.AddRigidMesh(meshBuilder, Matrix4x4.Identity);
       }
+    }
 
-      var gltf2 = sceneBuilder.ToGltf2();
-      var glbBytes = gltf2.WriteGLB();
-
-      File.WriteAllBytes("../../temp/test.glb", glbBytes);
+    public ArraySegment<byte> Write()
+    {
+      return Scene.ToGltf2().WriteGLB();
     }
 
     private static (