mirror of
https://github.com/sys4-fr/server-nalc.git
synced 2024-12-25 10:10:39 +01:00
243 lines
7.6 KiB
Lua
Executable File
243 lines
7.6 KiB
Lua
Executable File
local filename=minetest.get_worldpath() .. "/teleport_tubes"
|
|
|
|
local tp_tube_db = nil -- nil forces a read
|
|
local tp_tube_db_version = 2.0
|
|
|
|
local function hash(pos)
|
|
return string.format("%d", minetest.hash_node_position(pos))
|
|
end
|
|
|
|
local function save_tube_db()
|
|
local file, err = io.open(filename, "w")
|
|
if file then
|
|
tp_tube_db.version = tp_tube_db_version
|
|
file:write(minetest.serialize(tp_tube_db))
|
|
tp_tube_db.version = nil
|
|
io.close(file)
|
|
else
|
|
error(err)
|
|
end
|
|
end
|
|
|
|
local function migrate_tube_db()
|
|
local tmp_db = {}
|
|
tp_tube_db.version = nil
|
|
for key, val in pairs(tp_tube_db) do
|
|
if(val.channel ~= "") then -- skip unconfigured tubes
|
|
tmp_db[hash(val)] = val
|
|
end
|
|
end
|
|
tp_tube_db = tmp_db
|
|
save_tube_db()
|
|
end
|
|
|
|
local function read_tube_db()
|
|
local file = io.open(filename, "r")
|
|
if file ~= nil then
|
|
local file_content = file:read("*all")
|
|
io.close(file)
|
|
|
|
if file_content and file_content ~= "" then
|
|
tp_tube_db = minetest.deserialize(file_content)
|
|
if(not tp_tube_db.version or tonumber(tp_tube_db.version) < tp_tube_db_version) then
|
|
migrate_tube_db()
|
|
end
|
|
tp_tube_db.version = nil -- we add it back when saving
|
|
return tp_tube_db -- we read sucessfully
|
|
end
|
|
end
|
|
tp_tube_db = {}
|
|
return tp_tube_db
|
|
end
|
|
|
|
-- updates or adds a tube
|
|
local function set_tube(pos, channel, can_receive)
|
|
local tubes = tp_tube_db or read_tube_db()
|
|
local hash = hash(pos)
|
|
local tube = tubes[hash]
|
|
if tube then
|
|
tube.channel = channel
|
|
tube.cr = can_receive
|
|
save_tube_db()
|
|
return
|
|
end
|
|
|
|
-- we haven't found any tp tube to update, so lets add it
|
|
tp_tube_db[hash] = {x=pos.x,y=pos.y,z=pos.z,channel=channel,cr=can_receive}
|
|
save_tube_db()
|
|
end
|
|
|
|
local function remove_tube(pos)
|
|
local tubes = tp_tube_db or read_tube_db()
|
|
tubes[hash(pos)] = nil
|
|
save_tube_db()
|
|
end
|
|
|
|
local function read_node_with_vm(pos)
|
|
local vm = VoxelManip()
|
|
local MinEdge, MaxEdge = vm:read_from_map(pos, pos)
|
|
local data = vm:get_data()
|
|
local area = VoxelArea:new({MinEdge = MinEdge, MaxEdge = MaxEdge})
|
|
return minetest.get_name_from_content_id(data[area:index(pos.x, pos.y, pos.z)])
|
|
end
|
|
|
|
local function get_receivers(pos, channel)
|
|
local tubes = tp_tube_db or read_tube_db()
|
|
local receivers = {}
|
|
local dirty = false
|
|
for key, val in pairs(tubes) do
|
|
-- skip all non-receivers and the tube that it came from as early as possible, as this is called often
|
|
if (val.cr == 1 and val.channel == channel and (val.x ~= pos.x or val.y ~= pos.y or val.z ~= pos.z)) then
|
|
local is_loaded = (minetest.get_node_or_nil(val) ~= nil)
|
|
local node_name = is_loaded and minetest.get_node(pos).name or read_node_with_vm(val)
|
|
|
|
if minetest.registered_nodes[node_name] and minetest.registered_nodes[node_name].is_teleport_tube then
|
|
table.insert(receivers, val)
|
|
else
|
|
tp_tube_db[key] = nil
|
|
dirty = true
|
|
end
|
|
end
|
|
end
|
|
if dirty then
|
|
save_tube_db()
|
|
end
|
|
return receivers
|
|
end
|
|
|
|
local function update_meta(meta, can_receive)
|
|
meta:set_int("can_receive", can_receive and 1 or 0)
|
|
local cr_state = can_receive and "on" or "off"
|
|
meta:set_string("formspec","size[8.6,2.2]"..
|
|
"field[0.6,0.6;7,1;channel;Channel:;${channel}]"..
|
|
"label[7.3,0;Receive]"..
|
|
"image_button[7.3,0.3;1,1;pipeworks_button_" .. cr_state .. ".png;cr" .. (can_receive and 0 or 1) .. ";;;false;pipeworks_button_interm.png]"..
|
|
"image[0.3,1.3;1,1;pipeworks_teleport_tube_inv.png]"..
|
|
"label[1.6,1.2;channels are public by default]" ..
|
|
"label[1.6,1.5;use <player>:<channel> for fully private channels]" ..
|
|
"label[1.6,1.8;use <player>\\;<channel> for private receivers]" ..
|
|
default.gui_bg..
|
|
default.gui_bg_img)
|
|
end
|
|
|
|
pipeworks.register_tube("pipeworks:teleport_tube", {
|
|
description = "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 = {
|
|
is_teleport_tube = true,
|
|
tube = {
|
|
can_go = function(pos,node,velocity,stack)
|
|
velocity.x = 0
|
|
velocity.y = 0
|
|
velocity.z = 0
|
|
|
|
local channel = minetest.get_meta(pos):get_string("channel")
|
|
if channel == "" then return {} end
|
|
|
|
local target = get_receivers(pos, channel)
|
|
if target[1] == nil then return {} end
|
|
|
|
local d = math.random(1,#target)
|
|
pos.x = target[d].x
|
|
pos.y = target[d].y
|
|
pos.z = target[d].z
|
|
return pipeworks.meseadjlist
|
|
end
|
|
},
|
|
on_construct = function(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
update_meta(meta, true)
|
|
meta:set_string("infotext", "unconfigured Teleportation Tube")
|
|
end,
|
|
on_receive_fields = function(pos,formname,fields,sender)
|
|
if not fields.channel -- ignore escaping or clientside manipulation of the form
|
|
or not pipeworks.may_configure(pos, sender) then
|
|
return
|
|
end
|
|
local new_channel = tostring(fields.channel):trim()
|
|
|
|
local meta = minetest.get_meta(pos)
|
|
local can_receive = meta:get_int("can_receive")
|
|
|
|
-- check for private channels each time before actually changing anything
|
|
-- to not even allow switching between can_receive states of private channels
|
|
if new_channel ~= "" then
|
|
local sender_name = sender:get_player_name()
|
|
local name, mode = new_channel:match("^([^:;]+)([:;])")
|
|
if name and mode and name ~= sender_name then
|
|
--channels starting with '[name]:' can only be used by the named player
|
|
if mode == ":" then
|
|
minetest.chat_send_player(sender_name, "Sorry, channel '"..new_channel.."' is reserved for exclusive use by "..name)
|
|
return
|
|
|
|
--channels starting with '[name];' can be used by other players, but cannot be received from
|
|
elseif mode == ";" and (fields.cr1 or (can_receive ~= 0 and not fields.cr0)) then
|
|
minetest.chat_send_player(sender_name, "Sorry, receiving from channel '"..new_channel.."' is reserved for "..name)
|
|
return
|
|
end
|
|
end
|
|
end
|
|
|
|
local dirty = false
|
|
|
|
-- was the channel changed?
|
|
local channel = meta:get_string("channel")
|
|
if new_channel ~= channel then
|
|
channel = new_channel
|
|
meta:set_string("channel", channel)
|
|
dirty = true
|
|
end
|
|
|
|
-- test if a can_receive button was pressed
|
|
if fields.cr0 and can_receive ~= 0 then
|
|
can_receive = 0
|
|
update_meta(meta, false)
|
|
dirty = true
|
|
elseif fields.cr1 and can_receive ~= 1 then
|
|
can_receive = 1
|
|
update_meta(meta, true)
|
|
dirty = true
|
|
end
|
|
|
|
-- save if we changed something, handle the empty channel while we're at it
|
|
if dirty then
|
|
if channel ~= "" then
|
|
set_tube(pos, channel, can_receive)
|
|
local cr_description = (can_receive == 1) and "sending and receiving" or "sending"
|
|
meta:set_string("infotext", string.format("Teleportation Tube %s on '%s'", cr_description, channel))
|
|
else
|
|
-- remove empty channel tubes, to not have to search through them
|
|
remove_tube(pos)
|
|
meta:set_string("infotext", "unconfigured Teleportation Tube")
|
|
end
|
|
end
|
|
end,
|
|
on_destruct = function(pos)
|
|
remove_tube(pos)
|
|
end
|
|
},
|
|
})
|
|
minetest.register_craft( {
|
|
output = "pipeworks:teleport_tube_1 2",
|
|
recipe = {
|
|
{ "homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting" },
|
|
{ "default:desert_stone", "default:mese", "default:desert_stone" },
|
|
{ "homedecor:plastic_sheeting", "homedecor:plastic_sheeting", "homedecor:plastic_sheeting" }
|
|
},
|
|
})
|
|
|
|
if minetest.get_modpath("mesecons_mvps") ~= nil then
|
|
mesecon.register_on_mvps_move(function(moved_nodes)
|
|
for _, n in ipairs(moved_nodes) do
|
|
if string.find(n.node.name, "pipeworks:teleport_tube") ~= nil 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
|