Update Game tab

src/game_tab/HalfMove.cpp

@@ -177,6 +177,21 @@ void HalfMove::Promote() {
   }
 }
 
+bool HalfMove::HasParent(HalfMove*m){
+  return m==parent;
+}
+
+bool HalfMove::HasChild(HalfMove*m){
+  if(mainline==m){
+    return true;
+  }
+  for(auto var: variations){
+    if(var == m)
+      return true;
+  }
+  return false;
+}
+
 bool HalfMove::IsVariation() {
   HalfMove *m = this;
   HalfMove *p = HalfMove::parent;

src/game_tab/HalfMove.hpp

@@ -46,6 +46,8 @@ public:
   /// @brief Check if current half move is within a variation
   bool IsVariation();
   /// @brief Get the root of a variation
+  bool HasParent(HalfMove*m);
+  bool HasChild(HalfMove*m);
   HalfMove *GetRoot();
   /// @brief Get parent of the current move
   HalfMove *GetParent();