Minor refactor.

src/AnimGraph/AnimGraphEditor.cc

@@ -46,16 +46,23 @@ ImNodesPinShape sGetSocketShapeFromSocketType(const SocketType& socket_type) {
   return ImNodesPinShape_Quad;
 }
 
-void NodeSocketEditor(Socket& socket) {
+bool NodeSocketEditor(Socket& socket) {
+  bool modified = false;
   int mode_current = static_cast<int>(socket.m_type);
-  ImGui::InputText("Name", &socket.m_name);
+  if (ImGui::InputText("Name", &socket.m_name)) {
+    modified = true;
+  }
   if (ImGui::Combo(
           "Type",
           &mode_current,
           SocketTypeNames,
           sizeof(SocketTypeNames) / sizeof(char*))) {
     socket.m_type = static_cast<SocketType>(mode_current);
+
+    modified = true;
   }
+
+  return modified;
 }
 
 void RemoveBlendTreeConnectionsForSocket(
@@ -227,7 +234,12 @@ void AnimGraphEditorRenderSidebar(
     while (iter != outputs.end()) {
       Socket& output = *iter;
       ImGui::PushID(&output);
-      NodeSocketEditor(output);
+      if (NodeSocketEditor(output)) {
+        AnimGraphResource* current_graph_resource =
+            sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex];
+        current_graph_resource->m_socket_accessor->m_inputs = outputs;
+      }
+
       if (ImGui::Button("X")) {
         RemoveBlendTreeConnectionsForSocket(
             blend_tree_resource,
@@ -239,6 +251,13 @@ void AnimGraphEditorRenderSidebar(
       }
       ImGui::PopID();
     }
+
+    if (ImGui::Button("+")) {
+      AnimGraphResource* current_graph_resource =
+          sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex];
+      current_graph_resource->RegisterBlendTreeOutputSocket<float>(
+          "GraphFloatOutput");
+    }
   }
 
   if (node_resource == blend_tree_resource.GetGraphInputNode()) {
@@ -251,7 +270,11 @@ void AnimGraphEditorRenderSidebar(
     while (iter != inputs.end()) {
       Socket& input = *iter;
       ImGui::PushID(&input);
-      NodeSocketEditor(input);
+      if (NodeSocketEditor(input)) {
+        AnimGraphResource* current_graph_resource =
+            sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex];
+        current_graph_resource->m_socket_accessor->m_inputs = inputs;
+      }
       if (ImGui::Button("X")) {
         RemoveBlendTreeConnectionsForSocket(
             blend_tree_resource,
@@ -263,6 +286,13 @@ void AnimGraphEditorRenderSidebar(
       }
       ImGui::PopID();
     }
+
+    if (ImGui::Button("+")) {
+      AnimGraphResource* current_graph_resource =
+          sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex];
+      current_graph_resource->RegisterBlendTreeInputSocket<float>(
+          "GraphFloatInput");
+    }
   }
 }
 
@@ -271,12 +301,16 @@ void AnimGraphEditorClear() {
     ax::NodeEditor::ClearSelection();
   }
 
+  if (sEditorState.rootGraphResource) {
+    delete sEditorState.rootGraphResource->m_socket_accessor;
+  }
   delete sEditorState.rootGraphResource;
 
   sEditorState.rootGraphResource = new AnimGraphResource();
   sEditorState.rootGraphResource->m_name = "Root";
   sEditorState.rootGraphResource->m_graph_type_name = "BlendTree";
   sEditorState.rootGraphResource->m_blend_tree_resource.InitGraphConnectors();
+  sEditorState.rootGraphResource->m_socket_accessor = new NodeDescriptorBase;
 
   sEditorState.hierarchyStack.clear();
   sEditorState.hierarchyStack.push_back(sEditorState.rootGraphResource);
@@ -456,17 +490,18 @@ void AnimGraphEditorUpdate(ax::NodeEditor::EditorContext* context) {
   if (ax::NodeEditor::BeginCreate()) {
     ax::NodeEditor::PinId input_pin_id, output_pin_id;
     if (ax::NodeEditor::QueryNewLink(&input_pin_id, &output_pin_id)) {
-      if (input_pin_id && output_pin_id) {
       int source_node_index;
       int source_node_socket_index;
+      const AnimNodeResource* source_node = nullptr;
       const Socket* source_socket = nullptr;
 
+      if (input_pin_id) {
         OutputPinIdToNodeIndexAndSocketIndex(
             input_pin_id.Get(),
             &source_node_index,
             &source_node_socket_index);
 
-        const AnimNodeResource* source_node =
+        source_node =
             sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex]
                 ->m_blend_tree_resource.GetNode(source_node_index);
         if (source_node->m_socket_accessor->m_outputs.size()
@@ -479,17 +514,20 @@ void AnimGraphEditorUpdate(ax::NodeEditor::EditorContext* context) {
                       source_node,
                       source_node_socket_index);
         }
+      }
 
       int target_node_index;
       int target_node_socket_index;
+      const AnimNodeResource* target_node = nullptr;
       const Socket* target_socket = nullptr;
 
+      if (output_pin_id) {
         InputPinIdToNodeIndexAndSocketIndex(
             output_pin_id.Get(),
             &target_node_index,
             &target_node_socket_index);
 
-        const AnimNodeResource* target_node =
+        target_node =
             sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex]
                 ->m_blend_tree_resource.GetNode(target_node_index);
         if (target_node->m_socket_accessor->m_inputs.size()
@@ -502,7 +540,9 @@ void AnimGraphEditorUpdate(ax::NodeEditor::EditorContext* context) {
                       target_node,
                       target_node_socket_index);
         }
+      }
 
+      if (input_pin_id && output_pin_id) {
         if (source_socket == nullptr || target_socket == nullptr
             || !sEditorState.hierarchyStack[sEditorState.hierarchyStackIndex]
                     ->m_blend_tree_resource.IsConnectionValid(

src/AnimGraph/AnimGraphResource.cc

@@ -182,6 +182,7 @@ AnimNodeResource* sAnimGraphNodeFromJson(
 
   if (node_type == "BlendTree") {
     AnimGraphResource* result = new AnimGraphResource();
+    result->m_socket_accessor = new NodeDescriptorBase;
     sAnimGraphResourceBlendTreeFromJson(json_node, result);
     return result;
   }
@@ -330,8 +331,7 @@ static bool sAnimGraphResourceBlendTreeFromJson(
   if (json_data["nodes"][0].contains("inputs")) {
     const json& graph_outputs = json_data["nodes"][0]["inputs"];
     for (const auto& graph_output : graph_outputs) {
-      AnimNodeResource* graph_node = blend_tree_resource.GetNode(0);
-      graph_node->m_socket_accessor->m_inputs.push_back(
+      result_graph_resource->RegisterBlendTreeOutputSocket(
           sJsonToSocket(graph_output));
     }
   }
@@ -340,8 +340,7 @@ static bool sAnimGraphResourceBlendTreeFromJson(
   if (json_data["nodes"][1].contains("outputs")) {
     const json& graph_inputs = json_data["nodes"][1]["outputs"];
     for (const auto& graph_input : graph_inputs) {
-      AnimNodeResource* graph_node = blend_tree_resource.GetNode(1);
-      graph_node->m_socket_accessor->m_outputs.push_back(
+      result_graph_resource->RegisterBlendTreeInputSocket(
           sJsonToSocket(graph_input));
     }
   }