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------------------
-- Support code --
------------------
-- NOTE: Could be put into a separate library
function create_npc(id, x, y, handler)
local npc = tmw.obj_create_npc(id, x, y)
npcs[npc] = handler
end
function do_message(npc, ch, msg)
tmw.msg_npc_message(npc, ch, msg)
coroutine.yield(1)
end
function do_choice(npc, ch, msg)
tmw.msg_npc_choice(npc, ch, msg)
return coroutine.yield(2)
end
-- Called whenever a player starts talking to an NPC.
-- Creates a coroutine based on the register NPC handler.
function npc_start(npc, ch)
local h = npcs[npc]
if not h then return end
local co = coroutine.create(h)
local b, v = coroutine.resume(co, npc, ch)
if b and v then
states[ch] = {npc, co, v, 5}
if not timer then
timer = 600
end
end
end
-- Called whenever a player keeps talking to an NPC.
-- Checks that the NPC expects it, and resumes the respective coroutine.
function npc_next(npc, ch)
local w = states[ch]
if w and w[1] == npc and w[3] == 1 then
local b, v = coroutine.resume(w[2])
if b and v then
w[3] = v
w[4] = 5
else
states[ch] = nil
end
end
end
-- Called whenever a player selects a particular reply.
-- Checks that the NPC expects it, and resumes the respective coroutine.
function npc_choose(npc, ch, u)
local w = states[ch]
if w and w[1] == npc and w[3] == 2 then
local b, v = coroutine.resume(w[2], u)
if b and v then
w[3] = v
w[4] = 5
else
states[ch] = nil
end
end
end
function npc_update(npc)
end
function update()
-- Run every minute only, in order not to overload the server.
if not timer then return end
timer = timer - 10
if timer ~= 0 then return end
-- Free connections that have been inactive for 3-4 minutes.
for k, w in pairs(states) do
local t = w[4] - 1
if t == 0 then
states[k] = nil
else
w[4] = t
end
end
-- Restart timer if there are still some pending states.
if next(states) then
timer = 600
else
timer = nil
end
end
npcs = {}
states = {}
--------------
-- Map code --
--------------
function initialize()
create_npc(110, 50 * 32 + 16, 19 * 32 + 16, my_npc1)
create_npc(107, 53 * 32 + 16, 21 * 32 + 16, my_npc2)
create_npc(107, 53 * 32 + 16, 23 * 32 + 16, my_npc3)
end
function my_npc1(npc, ch)
do_message(npc, ch, "Hello! I am the testing NPC")
do_message(npc, ch, "This message is just here for testing intertwined connections.")
do_message(npc, ch, "What do you want?")
local v = do_choice(npc, ch, "Guns! Lots of guns!:Nothing")
if v == 1 then
do_message(npc, ch, "Sorry, this is a heroic-fantasy game, I do not have any gun.")
end
end
npc2_times = 1
function my_npc2(npc, ch)
do_message(npc, ch, "You know what?")
do_message(npc, ch, string.format("I have already asked this question %d times today.", npc2_times))
npc2_times = npc2_times + 1
end
function my_npc3(npc, ch)
do_message(npc, ch, "Don't you think the guy behind me is my evil twin?")
end
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