Added ability to set starting node

SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.cpp

@@ -305,7 +305,10 @@ namespace SHADE
     ImGui::BeginDisabled(ImNodes::NumSelectedNodes() != 1);
     if (ImGui::Button(std::format("{} Set Starting Node", ICON_MD_HOME).data()))
     {
-
+      // Get id of selected node
+      int selectedNode = 0;
+      ImNodes::GetSelectedNodes(&selectedNode);
+      controllerData->StartingNode = selectedNode; // We can do this as the ImNodes node index is the same
     }
     ImGui::EndDisabled();
   }
@@ -325,6 +328,15 @@ namespace SHADE
           // Title
           ImNodes::BeginNodeTitleBar();
           {
+            // Starting node marker
+            if (node.Index == controllerData->StartingNode)
+            { 
+              const float INDENT = NODE_WIDTH * 0.6f;
+              ImGui::Indent(INDENT);
+              ImGui::Text(ICON_MD_HOME);
+              ImGui::Unindent(INDENT);
+            }
+
             if (node.EditingName)
             {
               if (ImGui::Button(ICON_MD_DONE))
@@ -749,6 +761,12 @@ namespace SHADE
       }
     }
 
+    // Mark starting node
+    if (nodeMap.contains(controller.GetStartingNode()))
+    {
+      data.StartingNode = nodeMap[controller.GetStartingNode()]->Index;
+    }
+
     return data;
   }
   SHAnimationController SHAnimationControllerEditor::serialise(const AnimControllerData& data)

SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.h

@@ -100,7 +100,7 @@ namespace SHADE
 
     struct AnimControllerData
     {
-
+      NodeIndex       StartingNode = 0;
       std::list<Node> Nodes;
       std::unordered_map<std::string, SHAnimationController::AnimParam::Type> Params;
       LinkMap Links;