local focus = 0
local talk_start = 0
local target = 0
local following = false
local attacking = false

function onThingMove(creature, thing, oldpos, oldstackpos)

end


function onCreatureAppear(creature)

end


function onCreatureDisappear(cid, pos)
  	if focus == cid then
          selfSay('Tchau, Volte sempre.')
          focus = 0
          talk_start = 0
  	end
end


function onCreatureTurn(creature)

end


function msgcontains(txt, str)
  	return (string.find(txt, str) and not string.find(txt, '(%w+)' .. str) and not string.find(txt, str .. '(%w+)'))
end


function onCreatureSay(cid, type, msg)
  	msg = string.lower(msg)

  	if (msgcontains(msg, 'hi') and (focus == 0)) and getDistanceToCreature(cid) < 4 then
  		selfSay('Ola ' .. creatureGetName(cid) .. '! Eu Vendo O first addon Por 5k o second addon por 10k. O que Deseja?.')
  		focus = cid
  		talk_start = os.clock()

  	elseif msgcontains(msg, 'hi') and (focus ~= cid) and getDistanceToCreature(cid) < 4 then
  		selfSay('Desculpe, ' .. creatureGetName(cid) .. '!Ja Falo Com Você Um Minuto!.')

	elseif focus == cid then
		talk_start = os.clock()

		if msgcontains(msg, 'first addon') then
			selfSay('Você quer comprar o First addon por 5k?')
			talk_state = 1

		elseif msgcontains(msg, 'second addon') then
			selfSay('Você quer comprar o Second addon por 10k?')
			talk_state = 2	
		
		elseif talk_state == 1 then
			if msgcontains(msg, 'yes') then
				if pay(cid,5000) then
					addon(cid, 1)
					doPlayerAddAddon(cid, 252, 1) 
					doPlayerAddAddon(cid, 251, 1) 
					doPlayerAddAddon(cid, 269, 1) 
					doPlayerAddAddon(cid, 268, 1) 
					doPlayerAddAddon(cid, 273, 1) 
					doPlayerAddAddon(cid, 270, 1) 
					doPlayerAddAddon(cid, 279, 1) 
					doPlayerAddAddon(cid, 278, 1) 



				else
					selfSay('Desculpe Você Não Tem Dinheiro Suficiente.')
				end
 			end
			talk_state = 0

		elseif talk_state == 2 then
			if msgcontains(msg, 'yes') then
				if pay(cid,10000) then
					addon(cid, 2)
					doPlayerAddAddon(cid, 252, 2) 
					doPlayerAddAddon(cid, 251, 2) 
					doPlayerAddAddon(cid, 269, 2) 
					doPlayerAddAddon(cid, 268, 2) 
					doPlayerAddAddon(cid, 273, 2) 
					doPlayerAddAddon(cid, 270, 2) 
					doPlayerAddAddon(cid, 279, 2) 
					doPlayerAddAddon(cid, 278, 2) 
				else
					selfSay('Desculpe Você não tem dinheiro suficiente.')
				end
 			end
			talk_state = 0
			
		elseif msgcontains(msg, 'bye') and getDistanceToCreature(cid) < 4 then
			selfSay('Tchau, ' .. creatureGetName(cid) .. '!')
			focus = 0
			talk_start = 0
		end
	end
end


function onCreatureChangeOutfit(creature)

end


function onThink()
	doNpcSetCreatureFocus(focus)
	if (os.clock() - talk_start) > 30 then
  		if focus > 0 then
  			selfSay('Proximo Porfavor...')
  		end
  			focus = 0
  	end
 	if focus ~= 0 then
 		if getDistanceToCreature(focus) > 5 then
 			selfSay('Tchau, Tchau Amigo.')
 			focus = 0
 		end
 	end
end