diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 7fa25e0..14704a4 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -873,7 +873,8 @@ void Creature::ProcBuffEffect(Creature* caster, Buff* buff)
         break;
     case kBET_SummonObstacle:
         {
-            SummonObstacle(buff->meta->param1, GetPos());
+            a8::Vec2 target_pos = caster->GetPos() + caster->skill_dir_ * caster->skill_distance_;
+            SummonObstacle(buff->meta->param1, target_pos);
         }
         break;
     case kBET_Sprint:
diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index 6e30e28..003e24f 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -39,6 +39,8 @@ message Map
 message MapThing
 {
     optional int32 thing_id = 1; //物件id
+    optional int32 thing_type = 16;
+    optional int32 time = 17;
     optional int32 type = 2; //类型
     optional int32 height = 3; //高度
     optional int32 width = 4; //宽度