Fix exception thrown by children.ChildContainers in VisualTask when c…

Assets/Samples/BehaviorTreeList.cs

@@ -0,0 +1,30 @@
+using CleverCrow.Fluid.BTs.Trees;
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace CleverCrow.Fluid.BTs.Samples
+{
+    public class BehaviorTreeList : MonoBehaviour
+    {
+        protected void Awake()
+        {
+            for (int i = 0; i < 3; i++)
+            {
+                trees.Add(new NestedTree()
+                {
+                    tree = new BehaviorTreeBuilder(gameObject).Name($"Tree{i}").Sequence()
+                        .WaitTime(1)
+                        .ReturnSuccess()
+                    .End().Build()
+                });
+            }
+        }
+        public List<NestedTree> trees = new List<NestedTree>();
+    }
+    [Serializable]
+    public class NestedTree
+    {
+        public BehaviorTree tree;
+    }
+}

Assets/Samples/TreeSample.unity

@@ -38,12 +38,11 @@ RenderSettings:
   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0, g: 0, b: 0, a: 1}
   m_UseRadianceAmbientProbe: 0
 --- !u!157 &3
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-  serializedVersion: 11
+  serializedVersion: 12
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@@ -98,13 +97,13 @@ LightmapSettings:
     m_TrainingDataDestination: TrainingData
     m_LightProbeSampleCountMultiplier: 4
   m_LightingDataAsset: {fileID: 0}
-  m_UseShadowmask: 1
+  m_LightingSettings: {fileID: 1443705540}
 --- !u!196 &4
 NavMeshSettings:
   serializedVersion: 2
   m_ObjectHideFlags: 0
   m_BuildSettings:
-    serializedVersion: 2
+    serializedVersion: 3
     agentTypeID: 0
     agentRadius: 0.5
     agentHeight: 2
@@ -117,7 +116,9 @@ NavMeshSettings:
     cellSize: 0.16666667
     manualTileSize: 0
     tileSize: 256
-    accuratePlacement: 0
+    buildHeightMesh: 0
+    maxJobWorkers: 0
+    preserveTilesOutsideBounds: 0
     debug:
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@@ -197,6 +198,7 @@ Light:
   m_UseColorTemperature: 0
   m_BoundingSphereOverride: {x: 0, y: 0, z: 0, w: 0}
   m_UseBoundingSphereOverride: 0
+  m_UseViewFrustumForShadowCasterCull: 1
   m_ShadowRadius: 0
   m_ShadowAngle: 0
 --- !u!4 &294120168
@@ -206,12 +208,13 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 294120166}
+  serializedVersion: 2
   m_LocalRotation: {x: 0.40821788, y: -0.23456968, z: 0.10938163, w: 0.8754261}
   m_LocalPosition: {x: 0, y: 3, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 50, y: -30, z: 0}
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 GameObject:
@@ -253,9 +256,17 @@ Camera:
   m_projectionMatrixMode: 1
   m_GateFitMode: 2
   m_FOVAxisMode: 0
+  m_Iso: 200
+  m_ShutterSpeed: 0.005
+  m_Aperture: 16
+  m_FocusDistance: 10
+  m_FocalLength: 50
+  m_BladeCount: 5
+  m_Curvature: {x: 2, y: 11}
+  m_BarrelClipping: 0.25
+  m_Anamorphism: 0
   m_SensorSize: {x: 36, y: 24}
   m_LensShift: {x: 0, y: 0}
-  m_FocalLength: 50
   m_NormalizedViewPortRect:
     serializedVersion: 2
     x: 0
@@ -289,12 +300,13 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 322793818}
+  serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 1, z: -10}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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 GameObject:
@@ -333,12 +345,13 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 343368638}
+  serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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@@ -369,18 +382,137 @@ MonoBehaviour:
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   m_Name: 
   m_EditorClassIdentifier: 
-  _toggle: 0
+  _isTaskSuccess: 0
 --- !u!4 &533478366
 Transform:
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   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 533478364}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!850595691 &1443705540
+LightingSettings:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: Settings.lighting
+  serializedVersion: 6
+  m_GIWorkflowMode: 1
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+  m_EnableRealtimeLightmaps: 1
+  m_RealtimeEnvironmentLighting: 1
+  m_BounceScale: 1
+  m_AlbedoBoost: 1
+  m_IndirectOutputScale: 1
+  m_UsingShadowmask: 1
+  m_BakeBackend: 1
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+  m_BakeResolution: 40
+  m_Padding: 2
+  m_LightmapCompression: 3
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+  m_AOMaxDistance: 1
+  m_CompAOExponent: 1
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+  m_ExtractAO: 0
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+  m_LightmapsBakeMode: 1
+  m_FilterMode: 1
+  m_LightmapParameters: {fileID: 15204, guid: 0000000000000000f000000000000000, type: 0}
+  m_ExportTrainingData: 0
+  m_TrainingDataDestination: TrainingData
+  m_RealtimeResolution: 2
+  m_ForceWhiteAlbedo: 0
+  m_ForceUpdates: 0
+  m_FinalGather: 0
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+  m_FinalGatherFiltering: 1
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+  m_PVRSampling: 1
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+  m_PVRSampleCount: 512
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+  m_PVREnvironmentReferencePointCount: 2048
+  m_LightProbeSampleCountMultiplier: 4
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+  m_PVRMinBounces: 2
+  m_PVREnvironmentImportanceSampling: 1
+  m_PVRFilteringMode: 1
+  m_PVRDenoiserTypeDirect: 1
+  m_PVRDenoiserTypeIndirect: 1
+  m_PVRDenoiserTypeAO: 1
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+  m_PVRFilterTypeIndirect: 0
+  m_PVRFilterTypeAO: 0
+  m_PVRFilteringGaussRadiusDirect: 1
+  m_PVRFilteringGaussRadiusIndirect: 5
+  m_PVRFilteringGaussRadiusAO: 2
+  m_PVRFilteringAtrousPositionSigmaDirect: 0.5
+  m_PVRFilteringAtrousPositionSigmaIndirect: 2
+  m_PVRFilteringAtrousPositionSigmaAO: 1
+  m_PVRTiledBaking: 0
+  m_NumRaysToShootPerTexel: -1
+  m_RespectSceneVisibilityWhenBakingGI: 0
+--- !u!1 &1786752064
+GameObject:
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+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1786752065}
+  - component: {fileID: 1786752066}
+  m_Layer: 0
+  m_Name: BehaviorTreeList
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &1786752065
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   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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+  m_EditorClassIdentifier: 
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+  - {fileID: 343368640}
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Assets/com.fluid.behavior-tree/Editor/BehaviorTree/BehaviorTreeDrawer.cs

@@ -1,21 +1,91 @@
+using System;
+using System.Collections;
+using System.Reflection;
 using UnityEditor;
 using UnityEngine;
 
-namespace CleverCrow.Fluid.BTs.Trees.Editors {
+namespace CleverCrow.Fluid.BTs.Trees.Editors
+{
     [CustomPropertyDrawer(typeof(BehaviorTree))]
-    public class BehaviorTreeDrawer : PropertyDrawer {
-        public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) {
+    public class BehaviorTreeDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+        {
             EditorGUI.BeginProperty(position, label, property);
-            
+
             position = EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);
             GUI.enabled = Application.isPlaying;
-            if (GUI.Button(position, "View Tree")) {
-                var tree = fieldInfo.GetValue(property.serializedObject.targetObject) as IBehaviorTree;
-                BehaviorTreeWindow.ShowTree(tree, tree.Name ?? property.displayName);
+            if (GUI.Button(position, "View Tree"))
+            {
+                object value = GetTargetObjectOfProperty(property);
+                if (value is IBehaviorTree tree)
+                {
+                    BehaviorTreeWindow.ShowTree(tree, tree.Name ?? property.displayName);
+                }
+                else
+                {
+                    Debug.LogWarning($"BehaviorTreeDrawer: cannot resolve runtime value for property '{property.propertyPath}'.");
+                }
             }
             GUI.enabled = true;
-            
+
             EditorGUI.EndProperty();
         }
+        public object GetTargetObjectOfProperty(SerializedProperty prop)
+        {
+            if (prop == null) return null;
+
+            object obj = prop.serializedObject.targetObject;
+            if (obj == null) return null;
+
+            string path = prop.propertyPath.Replace(".Array.data[", "[");
+            string[] elements = path.Split('.');
+
+            foreach (string element in elements)
+            {
+                if (element.Contains("["))
+                {
+                    int indexStart = element.IndexOf("[", StringComparison.Ordinal);
+                    string memberName = element.Substring(0, indexStart);
+                    string indexStr = element.Substring(indexStart)
+                                             .Trim('[', ']');
+
+                    obj = GetMemberValue(obj, memberName);
+
+                    if (obj is IList list && int.TryParse(indexStr, out int index) && index >= 0 && index < list.Count)
+                    {
+                        obj = list[index];
+                    }
+                    else
+                    {
+                        return null;
+                    }
+                }
+                else
+                {
+                    obj = GetMemberValue(obj, element);
+                }
+
+                if (obj == null)
+                    return null;
+            }
+
+            return obj;
+        }
+
+        private object GetMemberValue(object source, string name)
+        {
+            if (source == null)
+                return null;
+            var type = source.GetType();
+
+            const BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
+
+            FieldInfo field = type.GetField(name, flags);
+            if (field != null)
+                return field.GetValue(source);
+
+            return null;
+        }
     }
 }