diff --git a/src/world/CWorld.cpp b/src/world/CWorld.cpp
index 8a14a42..1ebc1c1 100644
--- a/src/world/CWorld.cpp
+++ b/src/world/CWorld.cpp
@@ -213,3 +213,7 @@ void CWorld::SetUpdateTime(float tickTimeSec, uint32_t curTimeMs) {
     CWorld::s_tickTimeMs = static_cast<uint32_t>(tickTimeSec * 1000.0f);
     CWorld::s_tickTimeSec = tickTimeSec;
 }
+
+void CWorld::Update(const C3Vector& cameraPos, const C3Vector& cameraTarget, const C3Vector& targetPos) {
+    // TODO
+}
diff --git a/src/world/CWorld.hpp b/src/world/CWorld.hpp
index 124e370..63c19ec 100644
--- a/src/world/CWorld.hpp
+++ b/src/world/CWorld.hpp
@@ -70,6 +70,7 @@ class CWorld {
         static int32_t OnTick(const EVENT_DATA_TICK* data, void* param);
         static void SetFarClip(float farClip);
         static void SetUpdateTime(float tickTimeSec, uint32_t curTimeMs);
+        static void Update(const C3Vector& cameraPos, const C3Vector& cameraTarget, const C3Vector& targetPos);
 
     private:
         // Private static variables