diff --git a/libs/B-luga/include/B-luga/Json.hpp b/libs/B-luga/include/B-luga/Json.hpp
index ba05526..e3704cd 100644
--- a/libs/B-luga/include/B-luga/Json.hpp
+++ b/libs/B-luga/include/B-luga/Json.hpp
@@ -174,6 +174,20 @@ class Json {
         return jsonData[index].get<T>();
     }
 
+    template <typename T>
+    std::vector<T> getObjectsIdInArray(const std::string &dataType, const std::string &arrayName)
+    {
+        std::vector<T> ids;
+        auto data = getDataByJsonType(dataType)[arrayName];
+
+        for (const auto &object : data) {
+            if (isDataExist(object, "id")) {
+                ids.push_back(object["id"].get<T>());
+            }
+        }
+        return ids;
+    }
+
     template <typename T>
     T getDataByVector(const std::string &dataType, const std::vector<std::string> &indexes)
     {
diff --git a/libs/B-luga/include/B-luga/Maths/Maths.hpp b/libs/B-luga/include/B-luga/Maths/Maths.hpp
index 40577da..ada13e1 100644
--- a/libs/B-luga/include/B-luga/Maths/Maths.hpp
+++ b/libs/B-luga/include/B-luga/Maths/Maths.hpp
@@ -7,6 +7,7 @@
 
 #pragma once
 
+#define _USE_MATH_DEFINES
 #include <cmath>
 #include <stdexcept>