MarketProtocol = {} -- private functions local protocol local function send(msg) if protocol then print(msg:getMessageSize()) protocol:send(msg) end end local function readMarketOffer(msg, action, var) local timestamp = msg:getU32() local counter = msg:getU16() local itemId = 0 if var == MarketRequest.MyOffers or var == MarketRequest.MyHistory then itemId = msg:getU16() else itemId = var end local amount = msg:getU16() local price = msg:getU32() local playerName local state = MarketOfferState.Active if var == MarketRequest.MyHistory then state = msg:getU8() else playerName = msg:getString() end return MarketOffer.new({timestamp, counter}, action, Item.create(itemId), amount, price, playerName, state) end -- parsing protocols local function parseMarketEnter(msg) local balance = msg:getU32() if g_game.getProtocolVersion() < 950 then msg:getU8() -- get vocation id end local offers = msg:getU8() local depotItems = {} local depotCount = (msg:getU16() - 1) for i = 0, depotCount do local itemId = msg:getU16() -- item id local itemCount = msg:getU16() -- item count table.insert(depotItems, {itemId, itemCount}) end signalcall(Market.onMarketEnter, depotItems, offers, balance) return true end local function parseMarketLeave(msg) Market.onMarketLeave() return true end local function parseMarketDetail(msg) local itemId = msg:getU16() local descriptions = {} for i = MarketItemDescription.First, MarketItemDescription.Last do if msg:peekU16() ~= 0x00 then table.insert(descriptions, {i, msg:getString()}) -- item descriptions else msg:getU16() end end local purchaseStats = {} if msg:getU8() == 0x01 then local transactions = msg:getU32() -- transaction count local totalPrice = msg:getU32() -- total price local highestPrice = msg:getU32() -- highest price local lowestPrice = msg: getU32() -- lowest price table.insert(purchaseStats, {transactions, totalPrice, highestPrice, lowestPrice}) end local saleStats = {} if msg:getU8() == 0x01 then local transactions = msg:getU32() -- transaction count local totalPrice = msg:getU32() -- total price local highestPrice = msg:getU32() -- highest price local lowestPrice = msg: getU32() -- lowest price table.insert(saleStats, {transactions, totalPrice, highestPrice, lowestPrice}) end signalcall(Market.onMarketDetail, itemId, descriptions, purchaseStats, saleStats) return true end local function parseMarketBrowse(msg) local var = msg:getU16() local offers = {} local buyOfferCount = (msg:getU32() - 1) for i = 0, buyOfferCount do table.insert(offers, readMarketOffer(msg, MarketAction.Buy, var)) end local sellOfferCount = (msg:getU32() - 1) for i = 0, sellOfferCount do table.insert(offers, readMarketOffer(msg, MarketAction.Sell, var)) end signalcall(Market.onMarketBrowse, offers) return true end -- public functions function MarketProtocol.init() connect(g_game, { onGameStart = MarketProtocol.registerProtocol, onGameEnd = MarketProtocol.unregisterProtocol }) -- reloading module if g_game.isOnline() then MarketProtocol.updateProtocol(g_game.getProtocolGame()) end end function MarketProtocol.terminate() disconnect(g_game, { onGameStart = MarketProtocol.registerProtocol, onGameEnd = MarketProtocol.unregisterProtocol }) -- reloading module if not g_game.isOnline() then MarketProtocol.updateProtocol(nil) end MarketProtocol = nil end function MarketProtocol.updateProtocol(_protocol) protocol = _protocol end function MarketProtocol.registerProtocol() if g_game.getFeature(GamePlayerMarket) then ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketEnter, parseMarketEnter) ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketLeave, parseMarketLeave) ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketDetail, parseMarketDetail) ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketBrowse, parseMarketBrowse) end MarketProtocol.updateProtocol(g_game.getProtocolGame()) end function MarketProtocol.unregisterProtocol() if g_game.getFeature(GamePlayerMarket) then ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketEnter, parseMarketEnter) ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketLeave, parseMarketLeave) ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketDetail, parseMarketDetail) ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketBrowse, parseMarketBrowse) end MarketProtocol.updateProtocol(nil) end -- sending protocols function MarketProtocol.sendMarketLeave() if g_game.getFeature(GamePlayerMarket) then local msg = OutputMessage.create() msg:addU8(ClientOpcodes.ClientMarketLeave) send(msg) else g_logger.error('MarketProtocol.sendMarketLeave does not support the current protocol.') end end function MarketProtocol.sendMarketBrowse(browseId) if g_game.getFeature(GamePlayerMarket) then local msg = OutputMessage.create() msg:addU8(ClientOpcodes.ClientMarketBrowse) msg:addU16(browseId) send(msg) else g_logger.error('MarketProtocol.sendMarketBrowse does not support the current protocol.') end end function MarketProtocol.sendMarketCreateOffer(type, spriteId, amount, price, anonymous) if g_game.getFeature(GamePlayerMarket) then local msg = OutputMessage.create() msg:addU8(ClientOpcodes.ClientMarketCreate) msg:addU8(type) msg:addU16(spriteId) msg:addU16(amount) msg:addU32(price) msg:addU8(anonymous) send(msg) else g_logger.error('MarketProtocol.sendMarketCreateOffer does not support the current protocol.') end end function MarketProtocol.sendMarketCancelOffer(counter) if g_game.getFeature(GamePlayerMarket) then local msg = OutputMessage.create() msg:addU8(ClientOpcodes.ClientMarketCancel) msg:addU32(os.time()) msg:addU16(counter) send(msg) else g_logger.error('MarketProtocol.sendMarketCancelOffer does not support the current protocol.') end end function MarketProtocol.sendMarketAcceptOffer(counter) if g_game.getFeature(GamePlayerMarket) then local msg = OutputMessage.create() msg:addU8(ClientOpcodes.ClientMarketAccept) msg:addU32(os.time()) msg:addU16(counter) send(msg) else g_logger.error('MarketProtocol.sendMarketAcceptOffer does not support the current protocol.') end end