mirror of
https://github.com/mt-mods/pipeworks.git
synced 2024-11-16 07:20:34 +01:00
375 lines
10 KiB
Lua
375 lines
10 KiB
Lua
|
|
local S = minetest.get_translator("pipeworks")
|
|
local filename = minetest.get_worldpath().."/teleport_tubes" -- Only used for backward-compat
|
|
local storage = minetest.get_mod_storage()
|
|
|
|
local enable_logging = minetest.settings:get_bool("pipeworks_log_teleport_tubes", false)
|
|
|
|
local has_digilines = minetest.get_modpath("digilines")
|
|
|
|
-- V1: Serialized text file indexed by vector position.
|
|
-- V2: Serialized text file indexed by hash position.
|
|
-- V3: Mod storage using serialized tables.
|
|
-- V4: Mod storage using "<can_receive>:<channel>" format.
|
|
local tube_db_version = 4
|
|
local tube_db = {}
|
|
local receiver_cache = {}
|
|
|
|
local function hash_pos(pos)
|
|
vector.round(pos)
|
|
return string.format("%.0f", minetest.hash_node_position(pos))
|
|
end
|
|
|
|
local function serialize_tube(tube)
|
|
return string.format("%d:%s", tube.cr, tube.channel)
|
|
end
|
|
|
|
local function deserialize_tube(hash, str)
|
|
local sep = str:sub(2, 2) == ":"
|
|
local cr = tonumber(str:sub(1, 1))
|
|
local channel = str:sub(3)
|
|
if sep and cr and channel then
|
|
local pos = minetest.get_position_from_hash(tonumber(hash))
|
|
return {x = pos.x, y = pos.y, z = pos.z, cr = cr, channel = channel}
|
|
end
|
|
end
|
|
|
|
local function save_tube_db()
|
|
receiver_cache = {}
|
|
local fields = {version = tube_db_version}
|
|
for key, val in pairs(tube_db) do
|
|
fields[key] = serialize_tube(val)
|
|
end
|
|
storage:from_table({fields = fields})
|
|
end
|
|
|
|
local function save_tube(hash)
|
|
local tube = tube_db[hash]
|
|
receiver_cache[tube.channel] = nil
|
|
storage:set_string(hash, serialize_tube(tube))
|
|
end
|
|
|
|
local function remove_tube(pos)
|
|
local hash = hash_pos(pos)
|
|
if tube_db[hash] then
|
|
receiver_cache[tube_db[hash].channel] = nil
|
|
tube_db[hash] = nil
|
|
storage:set_string(hash, "")
|
|
end
|
|
end
|
|
|
|
local function migrate_tube_db()
|
|
if storage:get_int("version") == 3 then
|
|
for key, val in pairs(storage:to_table().fields) do
|
|
if tonumber(key) then
|
|
tube_db[key] = minetest.deserialize(val)
|
|
elseif key ~= "version" then
|
|
error("Unknown field in teleport tube database: "..key)
|
|
end
|
|
end
|
|
save_tube_db()
|
|
return
|
|
end
|
|
local file = io.open(filename, "r")
|
|
if file then
|
|
local content = file:read("*all")
|
|
io.close(file)
|
|
if content and content ~= "" then
|
|
tube_db = minetest.deserialize(content)
|
|
end
|
|
end
|
|
local version = tube_db.version or 0
|
|
tube_db.version = nil
|
|
if version < 2 then
|
|
local tmp_db = {}
|
|
for _, val in pairs(tube_db) do
|
|
if val.channel ~= "" then -- Skip unconfigured tubes
|
|
tmp_db[hash_pos(val)] = val
|
|
end
|
|
end
|
|
tube_db = tmp_db
|
|
end
|
|
save_tube_db()
|
|
end
|
|
|
|
local function read_tube_db()
|
|
local version = storage:get_int("version")
|
|
if version < tube_db_version then
|
|
migrate_tube_db()
|
|
elseif version > tube_db_version then
|
|
error("Cannot read teleport tube database of version "..version)
|
|
else
|
|
for key, val in pairs(storage:to_table().fields) do
|
|
if tonumber(key) then
|
|
tube_db[key] = deserialize_tube(key, val)
|
|
elseif key ~= "version" then
|
|
error("Unknown field in teleport tube database: "..key)
|
|
end
|
|
end
|
|
end
|
|
tube_db.version = nil
|
|
end
|
|
|
|
local function set_tube(pos, channel, cr)
|
|
local hash = hash_pos(pos)
|
|
local tube = tube_db[hash]
|
|
if tube then
|
|
if tube.channel ~= channel or tube.cr ~= cr then
|
|
tube.channel = channel
|
|
tube.cr = cr
|
|
save_tube(hash)
|
|
end
|
|
else
|
|
tube_db[hash] = {x = pos.x, y = pos.y, z = pos.z, channel = channel, cr = cr}
|
|
save_tube(hash)
|
|
end
|
|
end
|
|
|
|
local function get_receivers(pos, channel)
|
|
local hash = hash_pos(pos)
|
|
local cache = receiver_cache[channel] or {}
|
|
if cache[hash] then
|
|
return cache[hash]
|
|
end
|
|
local receivers = {}
|
|
for key, val in pairs(tube_db) do
|
|
if val.cr == 1 and val.channel == channel and not vector.equals(val, pos) then
|
|
minetest.load_area(val)
|
|
local node_name = minetest.get_node(val).name
|
|
if node_name:find("pipeworks:teleport_tube") then
|
|
table.insert(receivers, val)
|
|
else
|
|
remove_tube(val)
|
|
end
|
|
end
|
|
end
|
|
cache[hash] = receivers
|
|
receiver_cache[channel] = cache
|
|
return receivers
|
|
end
|
|
|
|
local help_text = minetest.formspec_escape(
|
|
S("Channels are public by default").."\n"..
|
|
S("Use <player>:<channel> for fully private channels").."\n"..
|
|
S("Use <player>;<channel> for private receivers")
|
|
)
|
|
|
|
local size = has_digilines and "8,5.9" or "8,4.4"
|
|
|
|
local formspec = "formspec_version[2]size["..size.."]"..
|
|
pipeworks.fs_helpers.get_prepends(size)..
|
|
"image[0.5,0.3;1,1;pipeworks_teleport_tube_inv.png]"..
|
|
"label[1.75,0.8;"..S("Teleporting Tube").."]"..
|
|
"field[0.5,1.7;5,0.8;channel;"..S("Channel")..";${channel}]"..
|
|
"button_exit[5.5,1.7;2,0.8;save;"..S("Save").."]"..
|
|
"label[6.5,0.6;"..S("Receive").."]"..
|
|
"label[0.5,2.8;"..help_text.."]"
|
|
|
|
if has_digilines then
|
|
formspec = formspec..
|
|
"field[0.5,4.6;5,0.8;digiline_channel;"..S("Digiline Channel")..";${digiline_channel}]"..
|
|
"button_exit[5.5,4.6;2,0.8;save;"..S("Save").."]"
|
|
end
|
|
|
|
local function update_meta(meta)
|
|
local channel = meta:get_string("channel")
|
|
local cr = meta:get_int("can_receive") == 1
|
|
if channel == "" then
|
|
meta:set_string("infotext", S("Unconfigured Teleportation Tube"))
|
|
else
|
|
local desc = cr and "sending and receiving" or "sending"
|
|
meta:set_string("infotext", S("Teleportation Tube @1 on '@2'", desc, channel))
|
|
end
|
|
local state = cr and "on" or "off"
|
|
meta:set_string("formspec", formspec..
|
|
"image_button[6.4,0.8;1,0.6;pipeworks_button_"..state..
|
|
".png;cr_"..state..";;;false;pipeworks_button_interm.png]")
|
|
end
|
|
|
|
local function update_tube(pos, channel, cr, player_name)
|
|
local meta = minetest.get_meta(pos)
|
|
if meta:get_string("channel") == channel and meta:get_int("can_receive") == cr then
|
|
return
|
|
end
|
|
if channel == "" then
|
|
meta:set_string("channel", "")
|
|
meta:set_int("can_receive", cr)
|
|
remove_tube(pos)
|
|
return
|
|
end
|
|
local name, mode = channel:match("^([^:;]+)([:;])")
|
|
if name and mode and name ~= player_name then
|
|
if mode == ":" then
|
|
minetest.chat_send_player(player_name,
|
|
S("Sorry, channel '@1' is reserved for exclusive use by @2", channel, name))
|
|
return
|
|
elseif mode == ";" and cr ~= 0 then
|
|
minetest.chat_send_player(player_name,
|
|
S("Sorry, receiving from channel '@1' is reserved for @2", channel, name))
|
|
return
|
|
end
|
|
end
|
|
meta:set_string("channel", channel)
|
|
meta:set_int("can_receive", cr)
|
|
set_tube(pos, channel, cr)
|
|
end
|
|
|
|
local function receive_fields(pos, _, fields, sender)
|
|
if not fields.channel or not pipeworks.may_configure(pos, sender) then
|
|
return
|
|
end
|
|
local meta = minetest.get_meta(pos)
|
|
local channel = fields.channel:trim()
|
|
local cr = meta:get_int("can_receive")
|
|
if fields.cr_on then
|
|
cr = 0
|
|
elseif fields.cr_off then
|
|
cr = 1
|
|
end
|
|
if has_digilines and fields.digiline_channel then
|
|
meta:set_string("digiline_channel", fields.digiline_channel)
|
|
end
|
|
update_tube(pos, channel, cr, sender:get_player_name())
|
|
update_meta(meta)
|
|
end
|
|
|
|
local function can_go(pos, node, velocity, stack)
|
|
velocity.x = 0
|
|
velocity.y = 0
|
|
velocity.z = 0
|
|
local src_meta = minetest.get_meta(pos)
|
|
local channel = src_meta:get_string("channel")
|
|
if channel == "" then
|
|
return {}
|
|
end
|
|
local receivers = get_receivers(pos, channel)
|
|
if #receivers == 0 then
|
|
return {}
|
|
end
|
|
local target = receivers[math.random(1, #receivers)]
|
|
if enable_logging then
|
|
local src_owner = src_meta:get_string("owner")
|
|
local dst_meta = minetest.get_meta(pos)
|
|
local dst_owner = dst_meta:get_string("owner")
|
|
minetest.log("action", string.format("[pipeworks] %s teleported from %s (owner=%s) to %s (owner=%s) via %s",
|
|
stack:to_string(), minetest.pos_to_string(pos), src_owner, minetest.pos_to_string(target), dst_owner, channel
|
|
))
|
|
end
|
|
pos.x = target.x
|
|
pos.y = target.y
|
|
pos.z = target.z
|
|
return pipeworks.meseadjlist
|
|
end
|
|
|
|
local function repair_tube(pos, node)
|
|
minetest.swap_node(pos, {name = node.name, param2 = node.param2})
|
|
pipeworks.scan_for_tube_objects(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
local channel = meta:get_string("channel")
|
|
if channel ~= "" then
|
|
set_tube(pos, channel, meta:get_int("can_receive"))
|
|
end
|
|
update_meta(meta)
|
|
end
|
|
|
|
local function digiline_action(pos, _, digiline_channel, msg)
|
|
local meta = minetest.get_meta(pos)
|
|
if digiline_channel ~= meta:get_string("digiline_channel") then
|
|
return
|
|
end
|
|
local channel = meta:get_string("channel")
|
|
local can_receive = meta:get_int("can_receive")
|
|
if type(msg) == "string" then
|
|
channel = msg
|
|
elseif type(msg) == "table" then
|
|
if type(msg.channel) == "string" then
|
|
channel = msg.channel
|
|
end
|
|
if msg.can_receive == 1 or msg.can_receive == true then
|
|
can_receive = 1
|
|
elseif msg.can_receive == 0 or msg.can_receive == false then
|
|
can_receive = 0
|
|
end
|
|
else
|
|
return
|
|
end
|
|
local player_name = meta:get_string("owner")
|
|
update_tube(pos, channel, can_receive, player_name)
|
|
update_meta(meta)
|
|
end
|
|
|
|
local def = {
|
|
tube = {
|
|
can_go = can_go,
|
|
on_repair = repair_tube,
|
|
},
|
|
on_construct = function(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
meta:set_int("can_receive", 1) -- Enabled by default
|
|
update_meta(meta)
|
|
end,
|
|
on_receive_fields = receive_fields,
|
|
on_destruct = remove_tube,
|
|
}
|
|
|
|
if has_digilines then
|
|
def.after_place_node = function(pos, placer)
|
|
-- Set owner for digilines
|
|
minetest.get_meta(pos):set_string("owner", placer:get_player_name())
|
|
pipeworks.after_place(pos)
|
|
end
|
|
def.digiline = {
|
|
receptor = {
|
|
rules = pipeworks.digilines_rules,
|
|
},
|
|
effector = {
|
|
rules = pipeworks.digilines_rules,
|
|
action = digiline_action,
|
|
}
|
|
}
|
|
end
|
|
|
|
pipeworks.register_tube("pipeworks:teleport_tube", {
|
|
description = S("Teleporting Pneumatic Tube Segment"),
|
|
inventory_image = "pipeworks_teleport_tube_inv.png",
|
|
noctr = { "pipeworks_teleport_tube_noctr.png" },
|
|
plain = { "pipeworks_teleport_tube_plain.png" },
|
|
ends = { "pipeworks_teleport_tube_end.png" },
|
|
short = "pipeworks_teleport_tube_short.png",
|
|
node_def = def,
|
|
})
|
|
|
|
if minetest.get_modpath("mesecons_mvps") then
|
|
-- Update tubes when moved by pistons
|
|
mesecon.register_on_mvps_move(function(moved_nodes)
|
|
for _, n in ipairs(moved_nodes) do
|
|
if n.node.name:find("pipeworks:teleport_tube") then
|
|
local meta = minetest.get_meta(n.pos)
|
|
set_tube(n.pos, meta:get_string("channel"), meta:get_int("can_receive"))
|
|
end
|
|
end
|
|
end)
|
|
end
|
|
|
|
-- Expose teleport tube database API for other mods
|
|
pipeworks.tptube = {
|
|
version = tube_db_version,
|
|
hash = hash_pos,
|
|
get_db = function() return tube_db end,
|
|
save_tube_db = save_tube_db,
|
|
remove_tube = remove_tube,
|
|
set_tube = set_tube,
|
|
save_tube = save_tube,
|
|
update_tube = update_tube,
|
|
update_meta = function(meta, cr)
|
|
-- Legacy behaviour
|
|
if cr ~= nil then
|
|
meta:set_int("can_receive", cr and 1 or 0)
|
|
end
|
|
update_meta(meta)
|
|
end,
|
|
}
|
|
|
|
-- Load the database
|
|
read_tube_db()
|