diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 946593e..a41aa58 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -3460,7 +3460,8 @@ void Human::UpdateViewObjects()
     if (view_objects_.size() >= 2) {
         std::vector<Human*> deleted_humans;
         for (Human* hum : view_objects_) {
-            if (hum->dead || hum->GetPos().ManhattanDistance(GetPos()) > 1000) {
+            if (hum->dead || hum->GetPos().ManhattanDistance(GetPos()) >
+                MetaMgr::Instance()->view_objects_out_distance) {
                 deleted_humans.push_back(hum);
             }
         }
@@ -3474,7 +3475,8 @@ void Human::UpdateViewObjects()
              [this] (Human* hum, bool& stop)
              {
                  if (hum->IsAndroid() && !hum->dead && view_objects_.find(hum) == view_objects_.end()) {
-                     if (hum->GetPos().ManhattanDistance(GetPos()) < 1000) {
+                     if (hum->GetPos().ManhattanDistance(GetPos()) <
+                         MetaMgr::Instance()->view_objects_in_distance) {
                          view_objects_.insert(hum);
                      }
                      if (view_objects_.size() >= 2) {
diff --git a/server/gameserver/incubator.cc b/server/gameserver/incubator.cc
index d98fdfd..e9442d8 100644
--- a/server/gameserver/incubator.cc
+++ b/server/gameserver/incubator.cc
@@ -3,9 +3,7 @@
 #include "incubator.h"
 #include "room.h"
 #include "human.h"
-
-const int ALLOC_BASE_LENGTH = 500;
-const int ALLOC_RAND_LENGTH = 100;
+#include "metamgr.h"
 
 void Incubator::Init()
 {
@@ -23,10 +21,10 @@ void Incubator::AllocAndroid(Human* target, int num)
     a8::Vec2 dir = a8::Vec2::UP;
     while (num > 0 && try_count < 20 && !hold_humans_.empty()) {
         dir.Rotate(a8::RandAngle());
-        int rand_len = rand() % ALLOC_RAND_LENGTH;
+        int rand_len = rand() % MetaMgr::Instance()->incubator_rand_length;
         Human* hum = hold_humans_[0];
         a8::Vec2 old_pos = hum->GetPos();
-        hum->SetPos(target->GetPos() + dir + ALLOC_BASE_LENGTH + rand_len);
+        hum->SetPos(target->GetPos() + dir + MetaMgr::Instance()->incubator_base_length + rand_len);
         if (!hum->CollisonDetection() && CanSet(hum, target)) {
             hum->SetPos(old_pos);
         } else {
@@ -81,7 +79,8 @@ bool Incubator::CanSet(Human* hum, Human* exclude_hum)
          [target, exclude_hum, &can_set] (Human* hum, a8::XParams& param) -> bool
          {
              if (hum != exclude_hum) {
-                 if (target->GetPos().ManhattanDistance(hum->GetPos()) < 100) {
+                 if (target->GetPos().ManhattanDistance(hum->GetPos()) <
+                     MetaMgr::Instance()->incubator_canset_distance) {
                      can_set = false;
                      return false;
                  }
diff --git a/server/gameserver/metamgr.h b/server/gameserver/metamgr.h
index 5854d6d..b2c16a7 100755
--- a/server/gameserver/metamgr.h
+++ b/server/gameserver/metamgr.h
@@ -144,6 +144,13 @@ class MetaMgr : public a8::Singleton<MetaMgr>
     int refresh_ai_downed_nearby_teammate_num = 1;
     int refresh_ai_downed_nearby_range = 580;
 
+    int view_objects_out_distance = 580;
+    int view_objects_in_distance = 580;
+
+    int incubator_base_length = 580;
+    int incubator_rand_length = 100;
+    int incubator_canset_distance = 100;
+
     #if 0
     int refresh_robot_min_num = 0;
     int refresh_robot_max_num = 0;