diff --git a/lua/app/module/battle/battle_manager.lua b/lua/app/module/battle/battle_manager.lua
index 0935f870..ef4960dc 100644
--- a/lua/app/module/battle/battle_manager.lua
+++ b/lua/app/module/battle/battle_manager.lua
@@ -219,43 +219,35 @@ function BattleManager:getAroundPosIds(posId, direction, range, cludePosIdsMap,
             end
         end
     elseif direction == BattleConst.BOARD_RANGE_TYPE.LEFT_UP then
-        for i = c - 1, c - range, -1 do
-            if i >= 1 then
-                for j = r - 1, r - range, -1 do
-                    if j >= 1 then
-                        table.insert(posIdList, {posId = self:getPosId(j, i), direction = direction})
-                    end
-                end
+        for i = 1, range do
+            local newR = r - i
+            local newC = c - i
+            if newR >= 1 and newC >= 1 then
+                table.insert(posIdList, {posId = self:getPosId(newR, newC), direction = direction})
             end
         end
     elseif direction == BattleConst.BOARD_RANGE_TYPE.LEFT_DOWN then
-        for i = c - 1, c - range, -1 do
-            if i >= 1 then
-                for j = r + 1, r + range do
-                    if j <= BattleConst.ROW_COUNT then
-                        table.insert(posIdList, {posId = self:getPosId(j, i), direction = direction})
-                    end
-                end
+        for i = 1, range do
+            local newR = r + i
+            local newC = c - i
+            if newR <= BattleConst.ROW_COUNT and newC >= 1 then
+                table.insert(posIdList, {posId = self:getPosId(newR, newC), direction = direction})
             end
         end
     elseif direction == BattleConst.BOARD_RANGE_TYPE.RIGHT_UP then
-        for i = c + 1, c + range do
-            if i <= BattleConst.COLUMN_COUNT then
-                for j = r - 1, r - range, -1 do
-                    if j >= 1 then
-                        table.insert(posIdList, {posId = self:getPosId(j, i), direction = direction})
-                    end
-                end
+        for i = 1, range do
+            local newR = r - i
+            local newC = c + i
+            if newR >= 1 and newC <= BattleConst.COLUMN_COUNT then
+                table.insert(posIdList, {posId = self:getPosId(newR, newC), direction = direction})
             end
         end
     elseif direction == BattleConst.BOARD_RANGE_TYPE.RIGHT_DOWN then
-        for i = c + 1, c + range do
-            if i <= BattleConst.COLUMN_COUNT then
-                for j = r + 1, r + range do
-                    if j <= BattleConst.ROW_COUNT then
-                        table.insert(posIdList, {posId = self:getPosId(j, i), direction = direction})
-                    end
-                end
+        for i = 1, range do
+            local newR = r + i
+            local newC = c + i
+            if newR <= BattleConst.ROW_COUNT and newC <= BattleConst.COLUMN_COUNT then
+                table.insert(posIdList, {posId = self:getPosId(newR, newC), direction = direction})
             end
         end
     end