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+----------------------------------------------------------
+-- Merchant Function Sample --
+----------------------------------------------------------------------------------
+-- Copyright 2009-2010 The Mana World Development Team --
+-- --
+-- This file is part of The Mana World. --
+-- --
+-- The Mana World is free software; you can redistribute it and/or modify it --
+-- under the terms of the GNU General Public License as published by the Free --
+-- Software Foundation; either version 2 of the License, or any later version. --
+----------------------------------------------------------------------------------
+
+function Merchant(npc, ch, buy_sell_table)
+
+ local function say(message)
+ do_message(npc, ch, message)
+ end
+
+ -- Important note: You can add two tables made of trinoms here when calling the
+ -- merchant function. E.g.: Merchant(npc, ch, buy_table, sell_table)
+ -- Even though, the function here will see only one table:
+ -- buy_sell_table[1] will corresponds to the first table (used to list
+ -- boughtable items, and buy_sell_table[2] listing sellable items.
+
+ local rights = mana.chr_get_rights(ch);
+
+ if (rights >= 128) then
+ mana.announce(mana.being_get_name(ch) .. " the big administrator was at my shop!",
+ mana.being_get_name(npc))
+ say "Oh mighty server administrator, how can I avoid your wrath?"
+ elseif (rights >= 8) then
+ say "How can I be of assistance, sir gamemaster?"
+ elseif (rights >= 4) then
+ say "What feature would you like to debug, developer?"
+ elseif (rights >= 2) then
+ say "How can I assist you in your testing duties?"
+ elseif (rights >= 1) then
+ if mana.being_get_gender(ch) == GENDER_FEMALE then
+ say "What do you want, Madam?"
+ else
+ say "What do you want, Sir?"
+ end
+ else
+ say "...Aren't you supposed to be banned??"
+ end
+
+ -- Constructing the choice list
+ local choice_table = {}
+ table.insert (choice_table, "To Buy...")
+
+ if (buy_sell_table[2] == nil) then
+ table.insert (choice_table, "To sell stuff...")
+ else
+ table.insert (choice_table, "Can you make me a price for what I have?")
+ end
+ table.insert (choice_table, "Tell me about the objects on this map")
+ table.insert (choice_table, "Nevermind...")
+
+ local v = do_choice(npc, ch, choice_table)
+
+ --Debug and learning purpose
+ --for i,k in ipairs(choice_table) do print(i,k) end
+ -- The buy table first line content
+ --print (((buy_sell_table[1])[1])[1], ((buy_sell_table[1])[1])[2], ((buy_sell_table[1])[1])[3])
+ -- The sell table first line content
+ --print (((buy_sell_table[2])[1])[1], ((buy_sell_table[2])[1])[2], ((buy_sell_table[2])[1])[3])
+
+ if v == 1 then
+ -- "To buy."
+ local buycase = mana.npc_trade(npc, ch, false, buy_sell_table[1])
+ if buycase == 0 then
+ say "What do you want to buy?"
+ elseif buycase == 1 then
+ say "I've got no items to sell."
+ else
+ say "Hmm, something went wrong... Ask a scripter to fix the buying mode!"
+ end
+
+ elseif v == 2 then
+
+ if buy_sell_table[2] == nil then
+ -- "To sell stuff..."
+ local sellcase = mana.npc_trade(npc, ch, true)
+ if sellcase == 0 then
+ say "Ok, what do you want to sell?"
+ elseif sellcase == 1 then
+ say "I'm not interested by any of your items."
+ else
+ say "Hmm, something went wrong... Ask a scripter to fix this!"
+ end
+ else
+ -- "Can you make me a price for what I have?"
+ local sellcase = mana.npc_trade(npc, ch, true, buy_sell_table[2])
+ if sellcase == 0 then
+ say "Here we go:"
+ elseif sellcase == 1 then
+ say "I'm not that interested in any of your items."
+ else
+ say "Hmm, something went wrong... Ask a scripter to fix me!"
+ end
+ end
+
+ elseif v == 3 then
+
+ local objects = mana.map_get_objects()
+ say("There are " .. #objects .. " objects on this map, their names are:")
+ for i=1,#objects do
+ say(tostring(i) .. ": " .. objects[i]:name())
+ end
+
+ end
+
+ say "See you later!"
+end