diff --git a/includes/xna/common/numerics.hpp b/includes/xna/common/numerics.hpp
index 08599df..8f9a40b 100644
--- a/includes/xna/common/numerics.hpp
+++ b/includes/xna/common/numerics.hpp
@@ -2,11 +2,18 @@
 #define XNA_COMMON_VECTORS_HPP
 
 #include <cmath>
-#include "../default.hpp"
 #include <optional>
 #include <cstdint>
+#include <vector>
 
 namespace xna {
+	struct Vector2;
+	struct Vector3;
+	struct Vector4;
+	struct Matrix;
+	struct Quaternion;
+	struct Plane;
+
 	//Represents a rational number.
 	struct RationalNumber {
 		constexpr RationalNumber() = default;
diff --git a/includes/xna/forward.hpp b/includes/xna/forward.hpp
new file mode 100644
index 0000000..b115841
--- /dev/null
+++ b/includes/xna/forward.hpp
@@ -0,0 +1,23 @@
+#ifndef XNA_FORWARD_HPP
+#define XNA_FORWARD_HPP
+
+#include <memory>
+
+
+
+struct RationalNumber;
+struct Point;
+struct Vector2;
+struct Vector3;
+struct Vector4;
+struct Matrix;
+struct Quaternion;
+
+using P_RationalNumber = std::shared_ptr<RationalNumber>;
+using P_Pointer = std::shared_ptr<Point>;
+using P_Vector2 = std::shared_ptr<Vector2>;
+using P_Vector3 = std::shared_ptr<Vector3>;
+using P_Vector4 = std::shared_ptr<Vector4>;
+using P_Quaternion = std::shared_ptr<Quaternion>;
+
+#endif
\ No newline at end of file