added finding path with A* and json file to know where character can walk

src/ScriptEngine.cpp

@@ -155,6 +155,14 @@ namespace ZL {
                 return game->getDialogueFlag(flag);
             });
 
+        api.set_function("set_navigation_area_available",
+            [game](const std::string& areaName, bool available) {
+                if (!game->setNavigationAreaAvailable(areaName, available)) {
+                    std::cerr << "[script] set_navigation_area_available: area not found: "
+                              << areaName << "\n";
+                }
+            });
+
         // receive_npc_gift(npc_index)
         api.set_function("receive_npc_gift", [game](int npcIndex) {
             std::cout << "[script] receive_npc_gift: npc index " << npcIndex << std::endl;