diff --git a/server/robotserver/global.cc b/server/robotserver/global.cc
deleted file mode 100644
index fa8914d4..00000000
--- a/server/robotserver/global.cc
+++ /dev/null
@@ -1,80 +0,0 @@
-#include "precompile.h"
-#include "global.h"
-
-#include "attrdefine.h"
-
-int g_hint_flags = 0;
-
-int Global::g_nowtime = time(nullptr);
-ColliderComponent* Global::last_collider = nullptr;
-
-bool IsValidSlotId(int slot_id)
-{
-    return slot_id >= 0 && slot_id < IS_END;
-}
-
-bool IsValidBuffEffect(int buff_effect)
-{
-    return buff_effect > kBET_Begin && buff_effect < (kBET_End + 10);
-}
-
-bool IsValidHumanAttr(int attr_type)
-{
-    return attr_type > kHAT_Begin && attr_type < kHAT_End;
-}
-
-bool IsValidHumanVirtualAttr(int attr_type)
-{
-    return attr_type > kHVAT_Begin && attr_type < kHVAT_End;
-}
-
-bool IsValidEventBuff(int event)
-{
-    return event >= 0 && event < kEventBuffEnd;
-}
-
-bool IsValidWeaponOpt(int opt)
-{
-    return opt >= 0 && opt < kWeaponOptEnd;
-}
-
-bool IsValidBuffOpt(int opt)
-{
-    return opt >= 0 && opt < kBuffOptEnd;
-}
-
-float GetAttrAbsFromXObject(std::shared_ptr<a8::XObject> obj, int attr_id)
-{
-    if (obj->IsArray()) {
-        for (int i = 0; i < obj->Size(); ++i) {
-            auto attr = obj->At(i);
-            if (attr->IsObject()){
-                int tmp_attr_id = attr->Get("attr_id", 0);
-                int tmp_type = attr->Get("type", 0);
-                int tmp_val = attr->Get("val", 0);
-                if (tmp_attr_id == attr_id && tmp_type == 1) {
-                    return tmp_val;
-                }
-            }
-        }
-    }
-    return 0;
-}
-
-float GetAttrRateFromXObject(std::shared_ptr<a8::XObject> obj,int attr_id)
-{
-    if (obj->IsArray()) {
-        for (int i = 0; i < obj->Size(); ++i) {
-            auto attr = obj->At(i);
-            if (attr->IsObject()){
-                int tmp_attr_id = attr->Get("attr_id", 0);
-                int tmp_type = attr->Get("type", 0);
-                int tmp_val = attr->Get("val", 0);
-                if (tmp_attr_id == attr_id && tmp_type == 2) {
-                    return tmp_val;
-                }
-            }
-        }
-    }
-    return 0;
-}
diff --git a/server/robotserver/global.h b/server/robotserver/global.h
deleted file mode 100644
index 3fe1cdfd..00000000
--- a/server/robotserver/global.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#pragma once
-
-#include <a8/singleton.h>
-
-extern int g_hint_flags;
-
-class ColliderComponent;
-class Global : public a8::Singleton<Global>
-{
- private:
-    Global() {};
-    friend class a8::Singleton<Global>;
- public:
-
-    static int g_nowtime;
-    static ColliderComponent* last_collider;
-    int traversing_cell_creature_count = 0;
-    int verify_set_pos = 0;
-};
-
-bool IsValidSlotId(int slot_id);
-bool IsValidBuffEffect(int buff_effect);
-bool IsValidHumanAttr(int attr_type);
-bool IsValidHumanVirtualAttr(int attr_type);
-bool IsValidEventBuff(int event);
-bool IsValidWeaponOpt(int opt);
-bool IsValidBuffOpt(int opt);
-float GetAttrAbsFromXObject(std::shared_ptr<a8::XObject> obj, int attr_id);
-float GetAttrRateFromXObject(std::shared_ptr<a8::XObject> obj,int attr_id);