BlendTree input and output sockets can now be registered via the AnimGraphResource.

tests/AnimGraphResourceTests.cc

@@ -304,21 +304,11 @@ class EmbeddedTreeBlend2GraphResource {
     embedded_blend_tree_resource = &embedded_graph->m_blend_tree_resource;
 
     // Embedded: outputs
-    AnimNodeResource* embedded_outputs =
-        embedded_blend_tree_resource->GetGraphOutputNode();
-    embedded_outputs->m_socket_accessor->RegisterInput<AnimData>(
-        "AnimOutput",
-        nullptr);
+    embedded_graph->RegisterBlendTreeOutputSocket<AnimData>("AnimOutput");
 
     // Embedded: inputs
-    AnimNodeResource* embedded_inputs =
-        embedded_blend_tree_resource->GetGraphInputNode();
-    embedded_inputs->m_socket_accessor->RegisterOutput<AnimData>(
-        "AnimInput",
-        nullptr);
-    embedded_inputs->m_socket_accessor->RegisterOutput<float>(
-        "BlendWeight",
-        nullptr);
+    embedded_graph->RegisterBlendTreeInputSocket<AnimData>("AnimInput");
+    embedded_graph->RegisterBlendTreeInputSocket<float>("BlendWeight");
 
     // Embedded nodes
     embedded_blend2_node_index = embedded_blend_tree_resource->AddNode(
@@ -343,7 +333,7 @@ class EmbeddedTreeBlend2GraphResource {
 
     // Embedded: setup connections
     REQUIRE(embedded_blend_tree_resource->ConnectSockets(
-        embedded_inputs,
+        embedded_blend_tree_resource->GetGraphInputNode(),
         "AnimInput",
         embedded_blend2_node_resource,
         "Input0"));
@@ -358,7 +348,7 @@ class EmbeddedTreeBlend2GraphResource {
         embedded_blend_tree_resource->GetGraphOutputNode(),
         "AnimOutput"));
     REQUIRE(embedded_blend_tree_resource->ConnectSockets(
-        embedded_inputs,
+        embedded_blend_tree_resource->GetGraphInputNode(),
         "BlendWeight",
         embedded_blend2_node_resource,
         "Weight"));
@@ -1341,4 +1331,24 @@ TEST_CASE_METHOD(
   }
 
   graph_context.freeAnimations();
+}
+
+TEST_CASE(
+    "Register AnimGraphResource Blendtree Sockets",
+    "[AnimGraphResource]") {
+  AnimNodeResource* blend_tree_anim_node_resource =
+      AnimNodeResourceFactory("BlendTree");
+  AnimGraphResource* blend_tree_graph_resource =
+      dynamic_cast<AnimGraphResource*>(blend_tree_anim_node_resource);
+
+  Socket socket;
+  socket.m_name = "FloatSocket";
+  socket.m_type = SocketType::SocketTypeFloat;
+  socket.m_reference.ptr = nullptr;
+
+  CHECK(blend_tree_graph_resource->RegisterBlendTreeInputSocket(socket));
+  CHECK(!blend_tree_graph_resource->RegisterBlendTreeInputSocket(socket));
+
+  CHECK(blend_tree_graph_resource->RegisterBlendTreeOutputSocket(socket));
+  CHECK(!blend_tree_graph_resource->RegisterBlendTreeOutputSocket(socket));
 }