local focus = 0
local max_distance = 8
local talk_start = 0
local conv = 0
local fighting = false
local challenger = 0
local afk_limit_time = 30 -- seconds
local afk_time = 0 -- don't change
local battle_turn = 1 -- don't change
local challenger_turn = 0 -- don't change
local masterpos = {}
local time_to_fight_again = 15 -- seconds, not ms (so 30 * 60 means 30 minutes)

local can_walk = true -- true to make this npc walks randomly
local max_distance = 5 -- maximum distance this npc can get far (sqms)
local walk_delay = 7 -- every seconds make this npc walk

local cooldown_table = {}

local min_pokemons_to_battle = 1-- change to whatever you want
local number_of_pokemons = 0 -- don't change

local prizes = {
[1] = {{itemid = 2393, count = 30}, {itemid = 2392, count = 20}},
[2] = {{itemid = 2393, count = 40}, {itemid = 2392, count = 30}},
[3] = {{itemid = 2393, count = 50}, {itemid = 2392, count = 40}},
[4] = {{itemid = 2393, count = 60}, {itemid = 2392, count = 50}},
[5] = {{itemid = 2393, count = 70}, {itemid = 2392, count = 60}},
[6] = {{itemid = 2393, count = 80}, {itemid = 2392, count = 70}}}

local pokemons = {
{name = "Cloyster", optionalLevel = 50, sex = SEX_MALE, nick = "Crusher", ball = "super"},
{name = "Lapras", optionalLevel = 50, sex = SEX_FEMALE, nick = "Laura", ball = "normal"},
{name = "Electabuzz", optionalLevel = 50, sex = SEX_MALE, nick = "Eletron", ball = "great"},
{name = "Pinsir", optionalLevel = 50, sex = SEX_MALE, nick = "Headcutter", ball = "normal"},
{name = "Dragonair", optionalLevel = 50, sex = SEX_FEMALE, nick = "Dragonix", ball = "ultra"},
}


local function doSummonGymPokemon(npc)
local this = npc
if not isCreature(this) then return true end
if #getCreatureSummons(this) >= 1 or focus == 0 then return true end
local it = pokemons[battle_turn]
doSummonMonster(this, it.name)
local summon = getCreatureSummons(this)[1]
local balleffect = pokeballs["normal"].effect
if it.ball and pokeballs[it.ball] then
balleffect = pokeballs[it.ball].effect
end
doSendMagicEffect(getThingPos(summon), balleffect)
setPlayerStorageValue(summon, 10000, balleffect)
setPlayerStorageValue(summon, 10001, gobackmsgs[math.random(#gobackmsgs)].back:gsub("doka", it.nick ~= "" and it.nick or it.name))
setPlayerStorageValue(summon, 1007, it.nick ~= "" and it.nick or it.name)
doSetMonsterGym(summon, focus)
local name = it.nick ~= "" and it.nick or getCreatureName(this).."s "..it.name
addEvent(adjustWildPoke, 15, summon, it.optionalLevel)
doCreatureSay(this, gobackmsgs[math.random(#gobackmsgs)].go:gsub("doka", getPlayerStorageValue(summon, 1007)), 1)
fighting = true
battle_turn = battle_turn + 1
end

local function doWinDuel(cid, npc)
if not isCreature(cid) then return true end
local this = npc
local x = prizes[number_of_pokemons]
for n = 1, #x do
doPlayerAddItem(cid, x[n].itemid, x[n].count)
end
doCreatureSay(npc, "Congratulations! You won, here is your prize.", 1)
cooldown_table[getCreatureName(cid)] = os.clock() + time_to_fight_again
return true
end

function onCreatureSay(cid, type, msg)

local msg = string.lower(msg)

if focus == cid then
talk_start = os.clock()
end

if msgcontains(msg, 'hi') and focus == 0 and getDistanceToCreature(cid) <= 4 then

if cooldown_table[getCreatureName(cid)] and cooldown_table[getCreatureName(cid)] - os.clock() > 0 then
selfSay("Hello "..getCreatureName(cid)..", I really enjoyed our last battle!")
conv = 10
else
selfSay("Hello "..getCreatureName(cid)..", are you up to a duel? I can give prizes if you win!")
conv = 1
end

focus = cid
talk_start = os.clock()
return true
end

if (isDuelMsg(msg) or isConfirmMsg(msg)) and (conv == 1 or conv == 10) and focus == cid then

if conv == 10 then
selfSay("We have just battled! Please wait for me to recover from out last battle!")
focus = 0
return true
end

if not hasPokemon(cid) then
selfSay("You need pokemons to battle!")
return true
end

selfSay("Ok, tell me how many pokemons will fight.")
conv = 2

return true
end

if conv == 2 and focus == cid then

if not tonumber(msg) then
selfSay("Tell me the number of pokemons that will battle.")
return true
elseif tonumber(msg) > #pokemons then
selfSay("I have only "..#pokemons..", so the maximum is "..#pokemons.."!")
return true
elseif tonumber(msg) < min_pokemons_to_battle or tonumber(msg) < 1 then
selfSay("It has to be more than "..min_pokemons_to_battle..".")
return true
else
number_of_pokemons = tonumber(msg)
selfSay("Ok, the first that defeats "..number_of_pokemons.." wins, let's start!")
challenger = focus
setPlayerStorageValue(cid, 990, 1)
addEvent(doSummonGymPokemon, 850, getThis())
conv = 3
return true
end


return true
end

if isNegMsg(msg) and conv == 1 and focus == cid then

focus = 0
selfSay("It is better for you to refuse a battle against me!")

return true
end

if msgcontains(msg, 'bye') and focus == cid then
selfSay('Bye and do your best trainer!')
setPlayerStorageValue(focus, 990, -1)
focus = 0
return true
end
end

local afk_warning = false
local change = false
local walkdelay = 0

function onThink()

if not masterpos.x then
masterpos = getThingPos(getThis())
end

if focus == 0 then
selfTurn(2)
fighting = false
challenger = 0
change = false
challenger_turn = 0
battle_turn = 1
afk_time = 0
afk_warning = false

if #getCreatureSummons(getThis()) >= 1 then
setPlayerStorageValue(getCreatureSummons(getThis())[1], 1006, 0)
doCreatureAddHealth(getCreatureSummons(getThis())[1], -getCreatureMaxHealth(getCreatureSummons(getThis())[1]))
end

walkdelay = walkdelay - 0.5

if walkdelay <= 0 then
walkdelay = walk_delay
local pos = getThingPos(getThis())
local npos = {}
for a = 0, 3 do
if getDistanceBetween(getPosByDir(pos, a), masterpos) <= max_distance and canWalkOnPos(getPosByDir(pos, a), true, false, true, true, false) then
table.insert(npos, getPosByDir(pos, a))
end
end

if npos and #npos > 0 then
doTeleportThing(getThis(), npos[math.random(#npos)])
end
end

return true
else

if not isCreature(focus) then
focus = 0
return true
end

if fighting then

talk_start = os.clock()

if not isCreature(getCreatureTarget(getThis())) then
if #getCreatureSummons(challenger) >= 1 then
if getCreatureOutfit(getCreatureSummons(challenger)[1]).lookType ~= 2 then --alterado v1.6
selfAttackCreature(getCreatureSummons(challenger)[1])
change = true
afk_time = 0
end
else
afk_time = afk_time + 0.5
if change then
change = false
challenger_turn = challenger_turn + 1
end
end
end

if afk_time > afk_limit_time then
setPlayerStorageValue(focus, 990, -1)
focus = 0
selfSay("I have waited too long, come back when you are ready!")
return true
end

if not afk_warning and afk_time > afk_limit_time / 2 then
selfSay("Where's your pokemon? Let's fight!")
afk_warning = true
end


if #getCreatureSummons(getThis()) == 0 then
if battle_turn > number_of_pokemons then
addEvent(doWinDuel, 1000, focus, getThis())
setPlayerStorageValue(focus, 990, -1)
focus = 0
return true
end
addEvent(doSummonGymPokemon, 1000, getThis())
end

if not hasPokemon(challenger) or challenger_turn > 6 or challenger_turn >= number_of_pokemons then
selfSay("You lost our duel! Maybe some other time you'll defeat me.")
setPlayerStorageValue(focus, 990, -1)
focus = 0
return true
end

end

local npcpos = getThingPos(getThis())
local focpos = getThingPos(focus)

if npcpos.z ~= focpos.z then
setPlayerStorageValue(focus, 990, -1)
focus = 0
selfSay("Bye then.")
return true
end

if (os.clock() - talk_start) > 30 then
selfSay("Good bye and keep training!")
setPlayerStorageValue(focus, 990, -1)
focus = 0
end

if getDistanceToCreature(focus) > max_distance then
setPlayerStorageValue(focus, 990, -1)
focus = 0
return true
end

local dir = doRedirectDirection(getDirectionTo(npcpos, focpos))
selfTurn(dir)
end
return true
end