MoreMesecons/moremesecons_teleporter/init.lua
HybridDog c41d0371c0 Various code fixes detected by luacheck
* Luablock: Fix the missing position argument when executing the lua code fails
* Wireless: Fix the missing id argument
* Localize several variables
* Some other small changes, e.g. dead code removal
2021-03-08 19:40:21 +01:00

109 lines
3.5 KiB
Lua

local storage = minetest.get_mod_storage()
local teleporters = minetest.deserialize(storage:get_string("teleporters")) or {}
local teleporters_rids = moremesecons.load_MapDataStorage_legacy(storage,
"teleporters_rids_v2", "teleporters_rids")
local function update_mod_storage()
storage:set_string("teleporters", minetest.serialize(teleporters))
storage:set_string("teleporters_rids_v2", teleporters_rids:serialize())
end
local function register(pos)
if not teleporters_rids:getAt(pos) then
table.insert(teleporters, pos)
teleporters_rids:setAt(pos, #teleporters)
update_mod_storage()
end
end
local function teleport_nearest(pos)
local MAX_TELEPORTATION_DISTANCE = moremesecons.setting("teleporter", "max_t2t_distance", 50, 1)
local MAX_PLAYER_DISTANCE = moremesecons.setting("teleporter", "max_p2t_distance", 25, 1)
-- Search for the nearest player
local nearest = nil
local min_distance_player = MAX_PLAYER_DISTANCE
local players = minetest.get_connected_players()
for _, player in pairs(players) do
local distance = vector.distance(pos, player:getpos())
if distance <= min_distance_player then
min_distance_player = distance
nearest = player
end
end
if not nearest then
-- If there is no nearest player (maybe too far away...)
return
end
-- Search for the corresponding teleporter and teleport
if not minetest.registered_nodes["moremesecons_teleporter:teleporter"] then return end
local newpos = {}
local min_distance = MAX_TELEPORTATION_DISTANCE
for i = 1, #teleporters do
if minetest.get_node(teleporters[i]).name == "moremesecons_teleporter:teleporter" then
local tel_pos
if teleporters[i].y == pos.y and teleporters[i].x == pos.x and teleporters[i].z ~= pos.z then
tel_pos = {x=teleporters[i].x, y=teleporters[i].y+1, z=teleporters[i].z}
elseif teleporters[i].z == pos.z and teleporters[i].x == pos.x and teleporters[i].y ~= pos.y then
tel_pos = {x=teleporters[i].x, y=teleporters[i].y+1, z=teleporters[i].z}
elseif teleporters[i].z == pos.z and teleporters[i].y == pos.y and teleporters[i].x ~= pos.x then
tel_pos = {x=teleporters[i].x, y=teleporters[i].y+1, z=teleporters[i].z}
end
if tel_pos then
local distance = vector.distance(tel_pos, pos)
if distance <= min_distance then
min_distance = distance
newpos = tel_pos
end
end
end
end
if not newpos.x then
newpos = {x=pos.x, y=pos.y+1, z=pos.z} -- If newpos doesn't exist, teleport on the current teleporter
end
nearest:moveto(newpos)
minetest.log("action", "Player "..nearest:get_player_name().." was teleported using a MoreMesecons Teleporter.")
end
minetest.register_craft({
output = "moremesecons_teleporter:teleporter 2",
recipe = {{"default:diamond","default:stick","default:mese"}}
})
minetest.register_node("moremesecons_teleporter:teleporter", {
tiles = {"moremesecons_teleporter.png"},
paramtype = "light",
walkable = true,
groups = {cracky=3},
description="Teleporter",
mesecons = {effector = {
state = mesecon.state.off,
action_on = teleport_nearest
}},
sounds = default.node_sound_stone_defaults(),
on_construct = register,
on_destruct = function(pos)
local RID = teleporters_rids:getAt(pos)
if RID then
table.remove(teleporters, RID)
teleporters_rids:removeAt(pos)
update_mod_storage()
end
end,
})
if moremesecons.setting("teleporter", "enable_lbm", false) then
minetest.register_lbm({
name = "moremesecons_teleporter:add_teleporter",
nodenames = {"moremesecons_teleporter:teleporter"},
run_at_every_load = true,
action = register
})
end