diff --git a/src/ProtocolCode.lua b/src/ProtocolCode.lua
index c137a00..2cc7eb7 100644
--- a/src/ProtocolCode.lua
+++ b/src/ProtocolCode.lua
@@ -100,6 +100,7 @@ actionCodes = {
 	Hang_startBonusBattleRpc = 260,
 	Hang_endBonusBattleRpc = 261,
 	Hang_hangGiftRpc = 262,
+	Hang_bagFieldRpc = 263,
 
 	Diner_updateProperty = 300,
 	Diner_addSellRpc = 301,
diff --git a/src/actions/HangAction.lua b/src/actions/HangAction.lua
index 26acbaf..ce1d6ff 100644
--- a/src/actions/HangAction.lua
+++ b/src/actions/HangAction.lua
@@ -40,20 +40,54 @@ local function checkReward(role)
 	for _, temp in pairs(carbonData.item:toArray()) do
 		table.insert(pool, temp:toArray(true, "="))
 	end
-	local curTypeCount = 0
-	for id, _ in pairs(items) do
+	local curFC = 0
+	local curIC = 0
+	for id, count in pairs(items) do
 		if id ~= ItemId.Gold and id ~= ItemId.Exp and id ~= ItemId.PlayerExp then
-			curTypeCount = curTypeCount + 1
+			curFC = curFC + math.ceil(count / globalCsv.idle_field_limit)
+			curIC = curIC + count
 		end
 	end
-	for i = 1, itemCount do
-		local cur = pool[math.randWeight(pool, 3)]
-		if items[cur[1]] or curTypeCount < role:getProperty("hangBagLimit") then
-			if not items[cur[1]] then
-				curTypeCount = curTypeCount + 1
+	local selfFC = role:getProperty("hangBagLimit")	--再加上月卡的栏位 TODO
+	local selfIC = selfFC * globalCsv.idle_field_limit
+
+	local function randomItem()
+		if curIC >= selfIC then
+			return
+		end
+		local tempPool = clone(pool)
+		while #tempPool > 0 do
+			local idx = math.randWeight(tempPool, 3)
+			local cur = pool[idx]
+			if (items[cur[1]] and math.ceil((items[cur[1]] + cur[2]) / globalCsv.idle_field_limit) > math.ceil(items[cur[1]] / globalCsv.idle_field_limit))
+					or not items[cur[1]] then	--要占用新栏位的情况
+				local addFC
+				if not items[cur[1]] then
+					addFC = math.ceil(cur[2] / globalCsv.idle_field_limit)
+				else
+					local frontC = items[cur[1]] % globalCsv.idle_field_limit
+					if frontC == 0 then
+						frontC = globalCsv.idle_field_limit
+					end
+					addFC = math.ceil((cur[2] - (globalCsv.idle_field_limit - frontC)) / globalCsv.idle_field_limit)
+				end
+				if curFC + addFC <= selfFC then
+					curFC = curFC + addFC
+					items[cur[1]] = (items[cur[1]] or 0) + cur[2]
+					break
+				else
+					--加不了，换别的东西
+					table.remove(tempPool, idx)
+				end
+			else
+				items[cur[1]] = items[cur[1]] + cur[2]
+				break
 			end
-			items[cur[1]] = (items[cur[1]] or 0) + cur[2]
 		end
+		curIC = curIC + 1
+	end
+	for i = 1, itemCount do
+		randomItem()
 	end
 
 	if coinCount > 0 or itemCount > 0 then
@@ -61,8 +95,6 @@ local function checkReward(role)
 	end
 end
 
-
-
 --开始一个新的关卡
 function _M.startRpc( agent, data )
 	local role = agent.role
@@ -511,5 +543,20 @@ function _M.hangGiftRpc(agent, data)
 	return true
 end
 
+function _M.bagFieldRpc(agent, data)
+	local role = agent.role
+	local curBL = role:getProperty("hangBagLimit")
+	local costD = globalCsv.idle_field_cost[curBL - globalCsv.idle_field_origin]
+	if not costD then
+		return 1
+	end
+	if costD ~= 0 and not role:checkItemEnough({[ItemId.Diamond] = costD}) then
+		return 2
+	end
+	role:updateProperty({field = "hangBagLimit", value = curBL + 1})
+	role:costItems({[ItemId.Diamond] = costD}, {log = {desc = "bagField"}})
+	SendPacket(actionCodes.Hang_bagFieldRpc, '')
+	return true
+end
 
 return _M
\ No newline at end of file
--
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