Added Market/MarketProtocol module to begin the construction of the Market! Fixed some Minor Issues, and Some Cosmetics

* Added new protocol lib.
* Added missing Game Features to game/const.lua
* Added new Market module that will handle the market/market protocols too.
* Finished Market protocol and begun on the market structure (MarketOffer etc).
* Removed any traces of market protocol in the core (I think).
* Moved minimap images to /images.
* Removed old zoom images for minimap.
* Fixed a bug with randomize outfit.

modules/game_market/marketprotocol.lua

@@ -0,0 +1,204 @@
+MarketProtocol = {}
+
+local market
+
+-- private functions
+
+function parseOpcode(protocol, opcode, msg)
+  if not g_game.getFeature(GamePlayerMarket) then
+    return false
+  end
+
+  -- process msg
+  if opcode == GameServerOpcodes.GameServerMarketEnter then
+    parseMarketEnter(msg)
+  elseif opcode == GameServerOpcodes.GameServerMarketLeave then
+    parseMarketLeave(msg)
+  elseif opcode == GameServerOpcodes.GameServerMarketDetail then
+    parseMarketDetail(msg)
+  elseif opcode == GameServerOpcodes.GameServerMarketBrowse then
+    parseMarketBrowse(msg)
+  else
+    return false
+  end
+  return true
+end
+
+function send(msg)
+  print(msg:getMessageSize())
+  g_game.getProtocolGame():safeSend(msg)
+end
+
+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, itemId, amount, price, playerName, state)
+end
+
+-- parsing protocols
+
+function parseMarketEnter(msg)
+  local balance = msg:getU32()
+  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
+
+  Market.onMarketEnter(depotItems, offers, balance)
+end
+
+function parseMarketLeave(msg)
+  Market.onMarketLeave()
+end
+
+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()})
+    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, {transaction, 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, {transaction, totalPrice, highestPrice, lowestPrice})
+  end
+
+  Market.onMarketDetail(itemId, descriptions, purchaseStats, saleStats)
+end
+
+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
+
+  Market.onMarketBrowse(offers)
+end
+
+-- public functions
+
+function MarketProtocol.init()
+  connect(ProtocolGame, { onOpcode = parseOpcode } )
+
+end
+
+function MarketProtocol.terminate()
+  disconnect(ProtocolGame, { onOpcode = parseOpcode } )
+
+  market = nil
+  MarketProtocol = 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