- Added input box to animation sample node to receive animation assets

- AssetSelect not gets shown or hidden depending on if the box has a connection
- Animation asset reference box now overrides asset picker

Source/Editor/Surface/Archetypes/Animation.cs

@@ -34,6 +34,9 @@ namespace FlaxEditor.Surface.Archetypes
         /// <seealso cref="FlaxEditor.Surface.SurfaceNode" />
         public class Sample : SurfaceNode
         {
+            private AssetSelect _assetSelect;
+            private Box _assetBox;
+            
             /// <inheritdoc />
             public Sample(uint id, VisjectSurfaceContext context, NodeArchetype nodeArch, GroupArchetype groupArch)
             : base(id, context, nodeArch, groupArch)
@@ -54,8 +57,13 @@ namespace FlaxEditor.Surface.Archetypes
                 base.OnSurfaceLoaded();
 
                 if (Surface != null)
+                {
+                    _assetSelect = GetChild<AssetSelect>();
+                    _assetBox = GetBox(8);
+                    _assetSelect.Visible = !_assetBox.HasAnyConnection;
                     UpdateTitle();
                 }
+            }
 
             private void UpdateTitle()
             {
@@ -64,6 +72,17 @@ namespace FlaxEditor.Surface.Archetypes
                 var style = Style.Current;
                 Resize(Mathf.Max(230, style.FontLarge.MeasureText(Title).X + 30), 160);
             }
+
+            /// <inheritdoc />
+            public override void ConnectionTick(Box box)
+            {
+                base.ConnectionTick(box);
+                
+                if(box.ID != _assetBox.ID)
+                    return;
+
+                _assetSelect.Visible = !box.HasAnyConnection;
+            }
         }
 
         /// <summary>
@@ -305,7 +324,8 @@ namespace FlaxEditor.Surface.Archetypes
                     NodeElementArchetype.Factory.Input(0, "Speed", true, typeof(float), 5, 1),
                     NodeElementArchetype.Factory.Input(1, "Loop", true, typeof(bool), 6, 2),
                     NodeElementArchetype.Factory.Input(2, "Start Position", true, typeof(float), 7, 3),
-                    NodeElementArchetype.Factory.Asset(0, Surface.Constants.LayoutOffsetY * 3, 0, typeof(FlaxEngine.Animation)),
+                    NodeElementArchetype.Factory.Input(3, "Animation Asset", true, typeof(FlaxEngine.Animation), 8),
+                    NodeElementArchetype.Factory.Asset(0, Surface.Constants.LayoutOffsetY * 4, 0, typeof(FlaxEngine.Animation)),
                 }
             },
             new NodeArchetype

Source/Engine/Animations/Graph/AnimGroup.Animation.cpp

@@ -749,7 +749,7 @@ void AnimGraphExecutor::ProcessGroupAnimation(Box* boxBase, Node* nodeBase, Valu
     // Animation
     case 2:
     {
-        const auto anim = node->Assets[0].As<Animation>();
+        auto anim = node->Assets[0].As<Animation>();
         auto& bucket = context.Data->State[node->BucketIndex].Animation;
 
         switch (box->ID)
@@ -761,6 +761,18 @@ void AnimGraphExecutor::ProcessGroupAnimation(Box* boxBase, Node* nodeBase, Valu
             const float speed = (float)tryGetValue(node->GetBox(5), node->Values[1]);
             const bool loop = (bool)tryGetValue(node->GetBox(6), node->Values[2]);
             const float startTimePos = (float)tryGetValue(node->GetBox(7), node->Values[3]);
+
+            // Override animation when animation reference box is connected
+            auto animationAssetBox = node->GetBox(8);
+            if(animationAssetBox->HasConnection())
+            {
+                const Value assetBoxValue = tryGetValue(animationAssetBox, Value::Null);
+                if(assetBoxValue != Value::Null)
+                    anim = (Animation*)assetBoxValue.AsAsset;
+                else
+                    anim = nullptr;
+            }
+            
             const float length = anim ? anim->GetLength() : 0.0f;
 
             // Calculate new time position