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Jiddos Npc system

Arkangel Nyx

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Error: [28/08/2012 16:49:08] Lua Script Error: [Npc interface]
[28/08/2012 16:49:08] data/npc/scripts/default.lua
[28/08/2012 16:49:08] data/npc/scripts/default.lua:1: attempt to index global 'KeywordHandler' (a nil value)
[28/08/2012 16:49:08] stack traceback:
[28/08/2012 16:49:08] [C]: in function '__index'
[28/08/2012 16:49:08] data/npc/scripts/default.lua:1: in main chunk
[28/08/2012 16:49:09] [Warning - NpcScript::NpcScript] Can not load script: data/npc/scripts/default.lua
[28/08/2012 16:49:09] cannot open default.lua: No such file or directory

It says this error over and over again, i am assuming for every npc i have. I am using Jiddos npc system which im sure you are all familiar with considering that it seems to be the npc system that is ran on all distributions. Now....if you think you can fix this error, by all means let me know what your idea is...i have placed all the scripts involved in the error below. However, after searching for a fix for almost 3 days now i am concluding that the error is being caused because i am trying to run Jiddos npc system with a server(or npc pack) that doesnt support it. Obviously going through and changing all 600 of them is a last resort option, but i was hoping otland could help me out...

1. Is there another npc system out there? If so, where can i download it?

2. Does anyone know of a full rl npc pack that can run using Jiddos system?

Right now these are the only two options i see as realistic. Thanks guys, here are the scripts...Rep++

Default.lua:

Lua:
 local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)

function onCreatureAppear(cid)			npcHandler:onCreatureAppear(cid)			end
function onCreatureDisappear(cid)		npcHandler:onCreatureDisappear(cid)			end
function onCreatureSay(cid, type, msg)		npcHandler:onCreatureSay(cid, type, msg)		end
function onThink()				npcHandler:onThink()					end

npcHandler:addModule(FocusModule:new())

KeywordHandler:

Lua:
 -- Advanced NPC System (Created by Jiddo),
-- Modified by Talaturen.

if(KeywordHandler == nil) then
	BEHAVIOR_SIMPLE = 1 -- Does not support nested keywords. If you choose this setting you must use a variable such as 'talkState' to keep track of how to handle keywords.
	BEHAVIOR_NORMAL = 2 -- Default behvaior. If a sub-keyword is not found, then the root is searched, not the parent hierarchy,
	BEHAVIOR_NORMAL_EXTENDED = 3 -- Same as BEHAVIOR_NORMAL but it also searches through the last node's parent.
	BEHAVIOR_COMPLEX = 4 -- Extended behavior. It a sub-keyword is not found, then the entire keyword hierarchy is searched upwards until root is reached.

	-- BEHAVIOR_NORMAL_EXTENDED is recommended as it (probably) mimics the behavior of real Tibia's NPCs the most.
	--		However, you are strongly recommended to test some (or all) other settings as well as it might suit you better.
	--		Also note that not much difference can be seen with the different settings unless you have a npc with a quite heavy
	--		nestled keyword hierarchy.
	-- Note: BEHAVIOR_SIMPLE should not be used unless you have any special reason to do so as it forces you to keep track of talkStates etc.
	--		This was pretty much the method used in the 2.0x versions of this system. It is here mainly for compability issues.
	KEYWORD_BEHAVIOR = BEHAVIOR_NORMAL_EXTENDED

	KeywordNode = {
		keywords = nil,
		callback = nil,
		parameters = nil,
		children = nil,
		parent = nil
	}

	-- Created a new keywordnode with the given keywords, callback function and parameters and without any childNodes.
	function KeywordNode:new(keys, func, param)
		local obj = {}
		obj.keywords = keys
		obj.callback = func
		obj.parameters = param
		obj.children = {}
		setmetatable(obj, self)
		self.__index = self
		return obj
	end

	-- Calls the underlying callback function if it is not nil.
	function KeywordNode:processMessage(cid, message)
		return (self.callback == nil or self.callback(cid, message, self.keywords, self.parameters, self))
	end

	-- Returns true if message contains all patterns/strings found in keywords.
	function KeywordNode:checkMessage(message)
		local ret = true
		if(self.keywords.callback ~= nil) then
			return self.keywords.callback(self.keywords, message)
		end
		for i,v in ipairs(self.keywords) do
			if(type(v) == 'string') then
				local a, b = string.find(message, v)
				if(a == nil or b == nil) then
					ret = false
					break
				end
			end
		end
		return ret
	end

	-- Returns the parent of this node or nil if no such node exists.
	function KeywordNode:getParent()
		return self.parent
	end

	-- Returns an array of the callback function parameters assosiated with this node.
	function KeywordNode:getParameters()
		return self.parameters
	end

	-- Returns an array of the triggering keywords assosiated with this node.
	function KeywordNode:getKeywords()
		return self.keywords
	end

	-- Adds a childNode to this node. Creates the childNode based on the parameters (k = keywords, c = callback, p = parameters)
	function KeywordNode:addChildKeyword(keywords, callback, parameters)
		local new = KeywordNode:new(keywords, callback, parameters)
		return self:addChildKeywordNode(new)
	end

	-- Adds a pre-created childNode to this node. Should be used for example if several nodes should have a common child.
	function KeywordNode:addChildKeywordNode(childNode)
		table.insert(self.children, childNode)
		childNode.parent = self
		return childNode
	end

	KeywordHandler = {
		root = nil,
		lastNode = nil
	}

	-- Creates a new keywordhandler with an empty rootnode.
	function KeywordHandler:new()
		local obj = {}
		obj.root = KeywordNode:new(nil, nil, nil)
		setmetatable(obj, self)
		self.__index = self
		return obj
	end

	-- Resets the lastNode field, and this resetting the current position in the node hierarchy to root.
	function KeywordHandler:reset()
		self.lastNode = nil
	end

	-- Makes sure the correct childNode of lastNode gets a chance to process the message.
	--	The behavior of this function depends much on the KEYWORD_BEHAVIOR.
	function KeywordHandler:processMessage(cid, message)
		local node = self:getLastNode()
		if(node == nil) then
			error('No root node found.')
			return false
		end
		if(KEYWORD_BEHAVIOR == BEHAVIOR_SIMPLE) then
			local ret = self:processNodeMessage(node, cid, message)
			if(ret) then
				return true
			end
		elseif(KEYWORD_BEHAVIOR == BEHAVIOR_NORMAL or KEYWORD_BEHAVIOR == BEHAVIOR_NORMAL_EXTENDED) then
			local ret = self:processNodeMessage(node, cid, message)
			if(ret) then
				return true
			end
			if(KEYWORD_BEHAVIOR == BEHAVIOR_NORMAL_EXTENDED and node:getParent()) then
				node = node:getParent() -- Search through the parent.
				local ret = self:processNodeMessage(node, cid, message)
				if(ret) then
					return true
				end
			end
			if(node ~= self:getRoot()) then
				node = self:getRoot() -- Search through the root.
				local ret = self:processNodeMessage(node, cid, message)
				if(ret) then
					return true
				end
			end
		elseif(KEYWORD_BEHAVIOR == BEHAVIOR_COMPLEX) then
			while true do
				local ret = self:processNodeMessage(node, cid, message)
				if(ret) then
					return true
				end

				if(node:getParent() ~= nil) then
					node = node:getParent() -- Move one step upwards in the hierarchy.
				else
					break
				end
			end
		else
			error('Unknown keyword behavior.')
		end
		return false
	end

	-- Tries to process the given message using the node parameter's children and calls the node's callback function if found.
	--	Returns the childNode which processed the message or nil if no such node was found.
	function KeywordHandler:processNodeMessage(node, cid, message)
		local messageLower = string.lower(message)
		for i, childNode in pairs(node.children) do
			if(childNode:checkMessage(messageLower)) then
				local oldLast = self.lastNode
				self.lastNode = childNode
				childNode.parent = node -- Make sure node is the parent of childNode (as one node can be parent to several nodes).
				if(childNode:processMessage(cid, message)) then
					return true
				else
					self.lastNode = oldLast
				end
			end
		end
		return false
	end

	-- Returns the root keywordnode
	function KeywordHandler:getRoot()
		return self.root
	end

	-- Returns the last processed keywordnode or root if no last node is found.
	function KeywordHandler:getLastNode()
		if(KEYWORD_BEHAVIOR == BEHAVIOR_SIMPLE) then
			return self:getRoot()
		else
			return self.lastNode or self:getRoot()
		end
	end

	-- Adds a new keyword to the root keywordnode. Returns the new node.
	function KeywordHandler:addKeyword(keys, callback, parameters)
		return self:getRoot():addChildKeyword(keys, callback, parameters)
	end

	-- Moves the current position in the keyword hierarchy count steps upwards. Count defalut value = 1.
	--	This function MIGHT not work properly yet. Use at your own risk.
	function KeywordHandler:moveUp(count)
		local steps = count
		if(steps == nil) then
			steps = 1
		end
		for i = 1, steps,1 do
			if(self.lastNode == nil) then
				break
			else
				self.lastNode = self.lastNode:getParent() or self:getRoot()
			end
		end
		return self.lastNode
	end
end

npcsystem.lua:

Lua:
 -- This file is part of Jiddo's advanced NpcSystem v3.0x. This npcsystem is free to use by anyone, for any purpuse. 
-- Initial release date: 2007-02-21
-- Credits: Jiddo, honux(I'm using a modified version of his Find function).
-- Please include full credits whereever you use this system, or parts of it.
-- For support, questions and updates, please consult the following thread:
-- [url=http://otfans.net/showthread.php?t=67810][Release] Advanced NPC System v3.0a![/url]

if(NpcSystem == nil) then
	
	-- Loads the underlying classes of the npcsystem.
	dofile('data/npc/scripts/lib/npcsystem/keywordhandler.lua')
	dofile('data/npc/scripts/lib/npcsystem/queue.lua')
	dofile('data/npc/scripts/lib/npcsystem/npchandler.lua')
	dofile('data/npc/scripts/lib/npcsystem/modules.lua')
	
	
	-- Global npc constants:
	
	-- Keyword nestling behavior. For more information look at the top of keywordhandler.lua
	KEYWORD_BEHAVIOR = BEHAVIOR_NORMAL_EXTENDED
	
	-- Gerrting and unGreeting keywords. For mor information look at the top of modules.lua
	FOCUS_GREETWORDS = {'hi', 'hello'}
	FOCUS_FAREWELLWORDS = {'bye', 'farewell', 'cya'}
	
	
	-- The word for accepting/declining an offer. CAN ONLY CONTAIN ONE FIELD! For more information look at the top of modules.lua
	SHOP_YESWORD = {'yes'}
	SHOP_NOWORD = {'no'}
	
	-- Pattern used to get the amount of an item a player wants to buy/sell.
	PATTERN_COUNT = '%d+'
	
	-- Talkdelay behavior. For mor information, look at the top of npchandler.lua.
	NPCHANDLER_TALKDELAY = TALKDELAY_ONTHINK
	
	-- Constant strings defining the keywords to replace in the default messages.
	--	For more information, look at the top of npchandler.lua...
	TAG_PLAYERNAME = '|PLAYERNAME|'
	TAG_ITEMCOUNT = '|ITEMCOUNT|'
	TAG_TOTALCOST = '|TOTALCOST|'
	TAG_ITEMNAME = '|ITEMNAME|'
	TAG_QUEUESIZE = '|QUEUESIZE|'
	
	
	
	
	
	NpcSystem = {
			--
		}
	
	-- Gets an npcparameter with the specified key. Returns nil if no such parameter is found.
	function NpcSystem.getParameter(key)
		local ret = getNpcParameter(tostring(key))
		if((type(ret) == 'number' and ret == 0) or ret == nil) then
			return nil
		else
			return ret
		end
	end
	
	-- Parses all known parameters for the npc. Also parses parseable modules.
	function NpcSystem.parseParameters(npcHandler)
		
		local ret = NpcSystem.getParameter('idletime')
		if(ret ~= nil) then
			npcHandler.idleTime = tonumber(ret)
		end
		
		local ret = NpcSystem.getParameter('talkradius')
		if(ret ~= nil) then
			npcHandler.talkRadius = tonumber(ret)
		end
		
		local ret = NpcSystem.getParameter('talkdelaytime')
		if(ret ~= nil) then
			npcHandler.talkDelayTime = tonumber(ret)
		end
		
		local ret = NpcSystem.getParameter('message_greet')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_GREET, ret)
		end
		local ret = NpcSystem.getParameter('message_farewell')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_FAREWELL, ret)
		end
		local ret = NpcSystem.getParameter('message_buy')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_BUY, ret)
		end
		local ret = NpcSystem.getParameter('message_sell')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_SELL, ret)
		end
		local ret = NpcSystem.getParameter('message_onbuy')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_ONBUY, ret)
		end
		local ret = NpcSystem.getParameter('message_onsell')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_ONSELL, ret)
		end
		local ret = NpcSystem.getParameter('message_needmoremoney')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_NEEDMOREMONEY, ret)
		end
		local ret = NpcSystem.getParameter('message_nothaveitem')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_NOTHAVEITEM, ret)
		end
		local ret = NpcSystem.getParameter('message_idletimeout')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_IDLETIMEOUT, ret)
		end
		local ret = NpcSystem.getParameter('message_walkaway')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_WALKAWAY, ret)
		end
		local ret = NpcSystem.getParameter('message_alreadyfocused')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_ALREADYFOCUSED, ret)
		end
		local ret = NpcSystem.getParameter('message_placedinqueue')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_PLACEDINQUEUE, ret)
		end
		local ret = NpcSystem.getParameter('message_decline')
		if(ret ~= nil) then
			npcHandler:setMessage(MESSAGE_DECLINE, ret)
		end
		
		-- Parse modules.
		for parameter, module in pairs(Modules.parseableModules) do
			local ret = NpcSystem.getParameter(parameter)
			if(ret ~= nil) then
				local number = tonumber(ret)
				if(number ~= 0 and module.parseParameters ~= nil) then
					local instance = module:new()
					npcHandler:addModule(instance)
					instance:parseParameters()
				end
			end
		end
		
	end
end

npchandler.lua:

Lua:
 -- This file is part of Jiddo's advanced NpcSystem v3.0x. This npcsystem is free to use by anyone, for any purpuse. 
-- Initial release date: 2007-02-21
-- Credits: Jiddo, honux(I'm using a modified version of his Find function).
-- Please include full credits whereever you use this system, or parts of it.
-- For support, questions and updates, please consult the following thread:
-- [url=http://otfans.net/showthread.php?t=67810][Release] Advanced NPC System v3.0a![/url]

if(NpcHandler == nil) then
	
	-- Constant talkdelay behaviors.
	TALKDELAY_NONE = 0 -- No talkdelay. Npc will reply immedeatly.
	TALKDELAY_ONTHINK = 1 -- Talkdelay handled through the onThink callback function. (Default)
	TALKDELAY_EVENT = 2 -- Not yet implemented
	
	-- Currently applied talkdelay behavior. TALKDELAY_ONTHINK is default.
	NPCHANDLER_TALKDELAY = TALKDELAY_ONTHINK
	
	
	
	-- Constant indexes for defining default messages.
	MESSAGE_GREET 		= 1 -- When the player greets the npc.
	MESSAGE_FAREWELL 	= 2 -- When the player unGreets the npc.
	MESSAGE_BUY 		= 3 -- When the npc asks the player if he wants to buy something.
	MESSAGE_SELL 		= 4 -- When the npc asks the player if he wants to sell something.
	MESSAGE_ONBUY 		= 5 -- When the player successfully buys something
	MESSAGE_ONSELL 		= 6 -- When the player successfully sells something
	MESSAGE_NEEDMOREMONEY = 7 -- When the player does not have enough money
	MESSAGE_NOTHAVEITEM = 8 -- When the player is trying to sell an item he does not have.
	MESSAGE_IDLETIMEOUT = 9 -- When the player has been idle for longer then idleTime allows.
	MESSAGE_WALKAWAY 	= 10 -- When the player walks out of the talkRadius of the npc.
	MESSAGE_ALREADYFOCUSED = 11 -- When the player already has the focus of this nopc.
	MESSAGE_PLACEDINQUEUE = 12 -- When the player has been placed in the costumer queue. 
	MESSAGE_DECLINE 	= 13 -- When the player sais no to something.
	
	-- Constant indexes for callback functions. These are also used for module callback ids.
	CALLBACK_CREATURE_APPEAR 	= 1
	CALLBACK_CREATURE_DISAPPEAR = 2
	CALLBACK_CREATURE_SAY 		= 3
	CALLBACK_ONTHINK 			= 4
	CALLBACK_GREET 				= 5
	CALLBACK_FAREWELL 			= 6
	CALLBACK_MESSAGE_DEFAULT 	= 7
	
	-- Addidional module callback ids
	CALLBACK_MODULE_INIT		= 10
	CALLBACK_MODULE_RESET		= 11
	
	
	-- Constant strings defining the keywords to replace in the default messages.
	TAG_PLAYERNAME = '|PLAYERNAME|'
	TAG_ITEMCOUNT = '|ITEMCOUNT|'
	TAG_TOTALCOST = '|TOTALCOST|'
	TAG_ITEMNAME = '|ITEMNAME|'
	TAG_QUEUESIZE = '|QUEUESIZE|'
	
	
	NpcHandler = {
		keywordHandler = nil,
		queue = nil,
		focus = 0,
		talkStart = 0,
		idleTime = 30,
		talkRadius = 5,
		talkDelayTime = 1, -- Seconds to delay outgoing messages.
		talkDelay = nil,
		callbackFunctions = nil,
		modules = nil,
		messages = {
				-- These are the default replies of all npcs. They can/should be changed individually for each npc.
			[MESSAGE_GREET] 		= 'Welcome, |PLAYERNAME|! I have been expecting you.',
			[MESSAGE_FAREWELL] 		= 'Good bye, |PLAYERNAME|!',
			[MESSAGE_BUY] 			= 'Do you want to buy |ITEMCOUNT| |ITEMNAME| for |TOTALCOST| gold coins?',
			[MESSAGE_SELL] 			= 'Do you want to sell |ITEMCOUNT| |ITEMNAME| for |TOTALCOST| gold coins?',
			[MESSAGE_ONBUY] 		= 'It was a pleasure doing business with you.',
			[MESSAGE_ONSELL] 		= 'Thank you for this item, |PLAYERNAME|.',
			[MESSAGE_NEEDMOREMONEY] = 'You do not have enough money.',
			[MESSAGE_NOTHAVEITEM] 	= 'You don\'t even have that item!',
			[MESSAGE_IDLETIMEOUT] 	= 'Next please!',
			[MESSAGE_WALKAWAY] 		= 'How rude!',
			[MESSAGE_ALREADYFOCUSED]= '|PLAYERNAME|, I am already talking to you.',
			[MESSAGE_PLACEDINQUEUE] = '|PLAYERNAME|, please wait for your turn. There are |QUEUESIZE| customers before you.',
			[MESSAGE_DECLINE]		= 'Not good enough, is it?'
		}
	}
	
	
	-- Creates a new NpcHandler with an empty callbackFunction stack. 
	function NpcHandler:new(keywordHandler)
		local obj = {}
		obj.callbackFunctions = {}
		obj.modules = {}
		obj.talkDelay = {
				message = nil,
				time = nil
			}
		obj.queue = Queue:new(obj)
		obj.keywordHandler = keywordHandler
		obj.messages = {}
		setmetatable(obj.messages, self.messages)
		self.messages.__index = self.messages
		
		setmetatable(obj, self)
		self.__index = self
		return obj
	end
	
	-- Re-defines the maximum idle time allowed for a player when talking to this npc.
	function NpcHandler:setMaxIdleTime(newTime)
		self.idleTime = newTime
	end
	
	-- Attaches a new costumer queue to this npchandler.
	function NpcHandler:setQueue(newQueue)
		self.queue = newQueue
		self.queue:setHandler(self)
	end
	
	-- Attackes a new keyword handler to this npchandler
	function NpcHandler:setKeywordHandler(newHandler)
		self.keywordHandler = newHandler
	end
	
	-- Function used to change the focus of this npc. 
	function NpcHandler:changeFocus(newFocus)
		self.focus = newFocus
		self:updateFocus()
	end
	
	-- This function should be called on each onThink and makes sure the npc faces the player it is talking to.
	--	Should also be called whenever a new player is focused.
	function NpcHandler:updateFocus()
		doNpcSetCreatureFocus(self.focus)
	end
	
	-- Used when the npc should un-focus the player. 
	function NpcHandler:releaseFocus()
		self:changeFocus(0)
	end
	
	-- Returns the callback function with the specified id or nil if no such callback function exists.
	function NpcHandler:getCallback(id)
		local ret = nil
		if(self.callbackFunctions ~= nil) then
			ret = self.callbackFunctions[id]
		end
		return ret
	end
	
	-- Changes the callback function for the given id to callback.
	function NpcHandler:setCallback(id, callback)
		if(self.callbackFunctions ~= nil) then
			self.callbackFunctions[id] = callback
		end
	end
	
	-- Adds a module to this npchandler and inits it.
	function NpcHandler:addModule(module)
		if(self.modules ~= nil) then
			table.insert(self.modules, module)
			module:init(self)
		end
	end
	
	-- Calls the callback function represented by id for all modules added to this npchandler with the given arguments.
	function NpcHandler:processModuleCallback(id, ...)
		local ret = true
		for i, module in pairs(self.modules) do
			local tmpRet = true
			if(id == CALLBACK_CREATURE_APPEAR and module.callbackOnCreatureAppear ~= nil) then
				tmpRet = module:callbackCreatureAppear(unpack(arg))
				
			elseif(id == CALLBACK_CREATURE_DISAPPEAR and module.callbackOnCreatureDisappear ~= nil) then
				tmpRet = module:callbackCreatureDisappear(unpack(arg))
				
			elseif(id == CALLBACK_CREATURE_SAY and module.callbackOnCreatureSay ~= nil) then
				tmpRet = module:callbackCreatureSay(unpack(arg))
				
			elseif(id == CALLBACK_ONTHINK and module.callbackOnThink ~= nil) then
				tmpRet = module:callbackOnThink(unpack(arg))
				
			elseif(id == CALLBACK_GREET and module.callbackOnGreet ~= nil) then
				tmpRet = module:callbackOnGreet(unpack(arg))
				
			elseif(id == CALLBACK_FAREWELL and module.callbackOnFarewell ~= nil) then
				tmpRet = module:callbackOnFarewell(unpack(arg))
				
			elseif(id == CALLBACK_MESSAGE_DEFAULT and module.callbackOnMessageDefault ~= nil) then
				tmpRet = module:callbackOnMessageDefault(unpack(arg))
				
			elseif(id == CALLBACK_MODULE_RESET and module.callbackOnModuleReset ~= nil) then
				tmpRet = module:callbackOnModuleReset(unpack(arg))
			end
			if(not tmpRet) then
				ret = false
				break
			end
		end
		return ret
	end
	
	-- Returns the message represented by id.
	function NpcHandler:getMessage(id)
		local ret = nil
		if(self.messages ~= nil) then
			ret = self.messages[id]
		end
		return ret
	end
	
	-- Changes the default response message with the specified id to newMessage.
	function NpcHandler:setMessage(id, newMessage)
		if(self.messages ~= nil) then
			self.messages[id] = newMessage
		end
	end
	
	-- Translates all message tags found in msg using parseInfo
	function NpcHandler:parseMessage(msg, parseInfo)
		local ret = msg
		for search, replace in pairs(parseInfo) do
			ret = string.gsub(ret, search, replace)
		end
		return ret
	end
	
	-- Makes sure the npc un-focuses the furrently focused player, and greets the next player in the queue is it is not empty.
	function NpcHandler:unGreet()
		if(self.focus == 0) then
			return
		end
		local callback = self:getCallback(CALLBACK_FAREWELL)
		if(callback == nil or callback()) then
			if(self:processModuleCallback(CALLBACK_FAREWELL)) then
				if(self.queue == nil or not self.queue:greetNext()) then
					local msg = self:getMessage(MESSAGE_FAREWELL)
					local parseInfo = { [TAG_PLAYERNAME] = getPlayerName(self.focus) }
					msg = self:parseMessage(msg, parseInfo)
					self:say(msg)
					self:releaseFocus()
				end
			end
		end
	end
	
	-- Greets a new player. 
	function NpcHandler:greet(cid)
		if(cid ~= 0) then
			local callback = self:getCallback(CALLBACK_GREET)
			if(callback == nil or callback(cid)) then
				if(self:processModuleCallback(CALLBACK_GREET, cid)) then
					local msg = self:getMessage(MESSAGE_GREET)
					local parseInfo = { [TAG_PLAYERNAME] = getPlayerName(cid) }
					msg = self:parseMessage(msg, parseInfo)
					self:say(msg)
				else
					return
				end
			else
				return
			end
		end
		self:changeFocus(cid)
	end
	
	-- Handles onCreatureAppear events. If you with to handle this yourself, please use the CALLBACK_CREATURE_APPEAR callback.
	function NpcHandler:onCreatureAppear(cid)
		local callback = self:getCallback(CALLBACK_CREATURE_APPEAR)
		if(callback == nil or callback(cid)) then
			if(self:processModuleCallback(CALLBACK_CREATURE_APPEAR, cid)) then
				
			end
		end
	end
	
	-- Handles onCreatureDisappear events. If you with to handle this yourself, please use the CALLBACK_CREATURE_DISAPPEAR callback.
	function NpcHandler:onCreatureDisappear(cid)
		local callback = self:getCallback(CALLBACK_CREATURE_DISAPPEAR)
		if(callback == nil or callback(cid)) then
			if(self:processModuleCallback(CALLBACK_CREATURE_DISAPPEAR, cid)) then
				if(self.focus == cid) then
					self:unGreet()
				end
			end
		end
	end
	
	-- Handles onCreatureSay events. If you with to handle this yourself, please use the CALLBACK_CREATURE_SAY callback.
	function NpcHandler:onCreatureSay(cid, msgtype, msg)
		local callback = self:getCallback(CALLBACK_CREATURE_SAY)
		if(callback == nil or callback(cid, msgtype, msg)) then
			if(self:processModuleCallback(CALLBACK_CREATURE_SAY, cid, msgtype, msg)) then
				if(not self:isInRange(cid)) then
					return
				end
				if(self.keywordHandler ~= nil) then
					local ret = self.keywordHandler:processMessage(cid, msg)
					if(not ret) then
						local callback = self:getCallback(CALLBACK_MESSAGE_DEFAULT)
						if(callback ~= nil and callback(cid, msgtype, msg)) then
							self.talkStart = os.time()
						end
					else
						self.talkStart = os.time()
					end
				end
			end
		end
	end
	
	-- Handles onThink events. If you with to handle this yourself, please use the CALLBACK_ONTHINK callback.
	function NpcHandler:onThink()
		local callback = self:getCallback(CALLBACK_ONTHINK)
		if(callback == nil or callback()) then
			
			if(NPCHANDLER_TALKDELAY == TALKDELAY_ONTHINK and self.talkDelay.time ~= nil and self.talkDelay.message ~= nil and os.time() >= self.talkDelay.time) then
				selfSay(self.talkDelay.message)
				self.talkDelay.time = nil
				self.talkDelay.message = nil
			end
			
			if(self:processModuleCallback(CALLBACK_ONTHINK)) then
				if(self.focus ~= 0) then
					if(not self:isInRange(self.focus)) then
						self:onWalkAway(self.focus)
					elseif(os.time()-self.talkStart > self.idleTime) then
						self:unGreet()
					else
						self:updateFocus()
					end
				end
			end
		end
	end
	
	-- Tries to greet the player iwth the given cid. This function does not override queue order, current focus etc.
	function NpcHandler:onGreet(cid)
		if(self:isInRange(cid)) then
			if(self.focus == 0) then
				self:greet(cid)
			elseif(cid == self.focus) then
				local msg = self:getMessage(MESSAGE_ALREADYFOCUSED)
				local parseInfo = { [TAG_PLAYERNAME] = getPlayerName(cid) }
				msg = self:parseMessage(msg, parseInfo)
				self:say(msg)
			else
				if(not self.queue:isInQueue(cid)) then
					self.queue:push(cid)
				end
				local msg = self:getMessage(MESSAGE_PLACEDINQUEUE)
				local parseInfo = { [TAG_PLAYERNAME] = getPlayerName(cid), [TAG_QUEUESIZE] = self.queue:getSize() }
				msg = self:parseMessage(msg, parseInfo)
				self:say(msg)
			end
		end
	end
	
	-- Simply calls the underlying unGreet function. 
	function NpcHandler:onFarewell()
		self:unGreet()
	end
	
	-- Should be called on this npc's focus if the distance to focus is greater then talkRadius.
	function NpcHandler:onWalkAway(cid)
		if(cid == self.focus) then
			local callback = self:getCallback(CALLBACK_CREATURE_DISAPPEAR)
			if(callback == nil or callback()) then
				if(self:processModuleCallback(CALLBACK_CREATURE_DISAPPEAR, cid)) then
					if(self.queue == nil or not self.queue:greetNext()) then
						local msg = self:getMessage(MESSAGE_WALKAWAY)
						local parseInfo = { [TAG_PLAYERNAME] = getPlayerName(self.focus) }
						msg = self:parseMessage(msg, parseInfo)
						self:say(msg)
						self:releaseFocus()
					end
				end
			end
		end
	end
	
	-- Returns true if cid is within the talkRadius of this npc.
	function NpcHandler:isInRange(cid)
		local playerPos = getPlayerPosition(cid)
		if playerPos == LUA_ERROR or playerPos == LUA_NO_ERROR then
			return false
		end
		
		local sx, sy, sz = selfGetPosition()
		local dx = math.abs(sx-playerPos.x)
		local dy = math.abs(sy-playerPos.y)
		local dz = math.abs(sz-playerPos.z)
		
		local dist = (dx^2 + dy^2)^0.5
		
		return (dist <= self.talkRadius and dz == 0)
	end
	
	-- Resets the npc into it's initial state (in regard of the keyrodhandler). 
	--	All modules are also receiving a reset call through their callbackOnModuleReset function.
	function NpcHandler:resetNpc()
		if(self:processModuleCallback(CALLBACK_MODULE_RESET)) then
			self.keywordHandler:reset()
		end
	end
	
	
	-- Makes the npc represented by this instance of NpcHandler say something. 
	--	This implements the currently set type of talkdelay.
	--	shallDelay is a boolean value. If it is false, the message is not delayed. Default value is true.
	function NpcHandler:say(message, shallDelay)
		if(shallDelay == nil) then
			shallDelay = true
		end
		if(NPCHANDLER_TALKDELAY == TALKDELAY_NONE or shallDelay == false) then
			selfSay(message)
			return
		end
		self.talkDelay.message = message
		self.talkDelay.time = os.time()+self.talkDelayTime
	end
	
	
end

I don't think the last two scripts listed are relevant..but i figured it couldn't hurt to add them. If you made it this far in my thread and are still reading..i think another THANKS is in order :p. Well, do your thangg otland.
 
Sorry for being off-topic here.

It's amazing how we're still using Jiddo's NPC system, 6 years later.
I remember when Jiddo released it on OTFans, we were all freaking out that something big like this was coming out.
Hell, I don't even remember what the NPCs were like before Jiddo's system came out.

Anyways, I can answer a couple of your questions, unfortunately, none relating to your error.

You can try replacing the whole NPC/lib folder with the ones that are used in other TFS distros.

And about other NPC systems, I'm sure someone has made their own systems, but just not available to the public.
If you're looking for another system, you most likely have to re-do all NPC scripts; considering you're using real map, good freaking luck.
Although, you can also wait for Revscriptsys to complete (which is between 2013-2014).
 
No i am not. However like Evan said...jiddos npc system script is extremely outdated and is still being used on every distribution for some reason...that is why we are experiencing the same problem.

@Evan: I looked into the tfs distributions..they are ran off the exact same system. In fact i have downloaded 9+ distributions and ALL of them are using this system. No idea what to do. I guess i could snort some coke and do 600+ npc's by hand :D
 
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