Multi-protocol

Lots of chagnes to add multi protocol flexibility, not really
completed yet, still have to rework text messages opcodes and other stuff,
so this still a working in progress feature

* Rework dat reader, the dat reader can now
* dinamically detect dat version
* Split game into gamelib and game_interface
* Lots of other minor changes

modules/game_market/market.otmod

@@ -4,9 +4,6 @@ Module
   author: BeniS
   website: www.otclient.info
 
-  dependencies:
-    - game
-
   @onLoad: |
     dofile 'marketoffer'
     dofile 'marketprotocol'

modules/game_market/marketoffer.lua

@@ -32,7 +32,7 @@ MarketOffer.new = function(offerId, action, itemId, amount, price, playerName, s
   offer.player = playerName
 
   state = tonumber(state)
-  if state ~= MarketOfferState.Active and state ~= MarketOfferState.Cancelled 
+  if state ~= MarketOfferState.Active and state ~= MarketOfferState.Cancelled
     and state ~= MarketOfferState.Expired and state ~= MarketOfferState.Accepted then
     g_logger.error('MarketOffer.new - invalid state provided.')
   end

modules/game_market/marketprotocol.lua

@@ -3,27 +3,6 @@ MarketProtocol = {}
 local market
 
 -- private functions
-
-local 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
-
 local function send(msg)
   print(msg:getMessageSize())
   g_game.getProtocolGame():safeSend(msg)
@@ -49,12 +28,11 @@ local function readMarketOffer(msg, action, var)
   else
     playerName = msg:getString()
   end
-  
+
   return MarketOffer.new({timestamp, counter}, action, itemId, amount, price, playerName, state)
 end
 
 -- parsing protocols
-
 local function parseMarketEnter(msg)
   local balance = msg:getU32()
   local offers = msg:getU8()
@@ -128,14 +106,18 @@ local function parseMarketBrowse(msg)
 end
 
 -- public functions
-
 function MarketProtocol.init()
-  connect(ProtocolGame, { onOpcode = parseOpcode } )
-
+  ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketEnter, parseMarketEnter)
+  ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketLeave, parseMarketLeave)
+  ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketDetail, parseMarketDetail)
+  ProtocolGame.registerOpcode(GameServerOpcodes.GameServerMarketBrowse, parseMarketBrowse)
 end
 
 function MarketProtocol.terminate()
-  disconnect(ProtocolGame, { onOpcode = parseOpcode } )
+  ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketEnter, parseMarketEnter)
+  ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketLeave, parseMarketLeave)
+  ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketDetail, parseMarketDetail)
+  ProtocolGame.unregisterOpcode(GameServerOpcodes.GameServerMarketBrowse, parseMarketBrowse)
 
   market = nil
   MarketProtocol = nil