Add **Behavior Tree** asset type and editing

Source/Engine/ContentImporters/AssetsImportingManager.cpp

@@ -33,6 +33,7 @@
 #include "CreateAnimationGraphFunction.h"
 #include "CreateVisualScript.h"
 #include "CreateAnimation.h"
+#include "CreateBehaviorTree.h"
 #include "CreateJson.h"
 
 // Tags used to detect asset creation mode
@@ -54,6 +55,7 @@ const String AssetsImportingManager::CreateMaterialFunctionTag(TEXT("MaterialFun
 const String AssetsImportingManager::CreateParticleEmitterFunctionTag(TEXT("ParticleEmitterFunction"));
 const String AssetsImportingManager::CreateAnimationGraphFunctionTag(TEXT("AnimationGraphFunction"));
 const String AssetsImportingManager::CreateAnimationTag(TEXT("Animation"));
+const String AssetsImportingManager::CreateBehaviorTreeTag(TEXT("BehaviorTree"));
 const String AssetsImportingManager::CreateVisualScriptTag(TEXT("VisualScript"));
 
 class AssetsImportingManagerService : public EngineService
@@ -485,6 +487,7 @@ bool AssetsImportingManagerService::Init()
         { AssetsImportingManager::CreateParticleEmitterFunctionTag, CreateParticleEmitterFunction::Create },
         { AssetsImportingManager::CreateAnimationGraphFunctionTag, CreateAnimationGraphFunction::Create },
         { AssetsImportingManager::CreateAnimationTag, CreateAnimation::Create },
+        { AssetsImportingManager::CreateBehaviorTreeTag, CreateBehaviorTree::Create },
         { AssetsImportingManager::CreateVisualScriptTag, CreateVisualScript::Create },
     };
     AssetsImportingManager::Creators.Add(InBuildCreators, ARRAY_COUNT(InBuildCreators));

Source/Engine/ContentImporters/AssetsImportingManager.h

@@ -118,6 +118,11 @@ public:
     /// </summary>
     static const String CreateAnimationTag;
 
+    /// <summary>
+    /// The create Behavior Tree asset tag.
+    /// </summary>
+    static const String CreateBehaviorTreeTag;
+
     /// <summary>
     /// The create visual script asset tag.
     /// </summary>

Source/Engine/ContentImporters/CreateBehaviorTree.h

@@ -0,0 +1,36 @@
+// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Types.h"
+
+#if COMPILE_WITH_ASSETS_IMPORTER
+
+#include "Engine/AI/BehaviorTree.h"
+
+/// <summary>
+/// Creating animation utility
+/// </summary>
+class CreateBehaviorTree
+{
+public:
+    static CreateAssetResult Create(CreateAssetContext& context)
+    {
+        // Base
+        IMPORT_SETUP(BehaviorTree, 1);
+
+        // Chunk 0 - Visject Surface
+        if (context.AllocateChunk(0))
+            return CreateAssetResult::CannotAllocateChunk;
+        {
+            const BehaviorTreeGraph graph;
+            MemoryWriteStream stream(64);
+            graph.Save(&stream, true);
+            context.Data.Header.Chunks[0]->Data.Copy(stream.GetHandle(), stream.GetPosition());
+        }
+
+        return CreateAssetResult::Ok;
+    }
+};
+
+#endif