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--pcnaming.lua
--a.k.a Passive component naming
--Allows to assign names to passive components, so they can be called like:
--setstate("iamasignal", "green")
atlatc.pcnaming={name_map={}}
function atlatc.pcnaming.load(stuff)
if type(stuff)=="table" then
atlatc.pcnaming.name_map=stuff
end
end
function atlatc.pcnaming.save()
return atlatc.pcnaming.name_map
end
function atlatc.pcnaming.resolve_pos(pos, func_name)
if type(pos)=="string" then
local e = atlatc.pcnaming.name_map[pos]
if e then return e end
elseif type(pos)=="table" and pos.x and pos.y and pos.z then
return pos
end
error("Invalid position supplied to " .. (func_name or "???")..": " .. dump(pos))
end
minetest.register_craftitem("advtrains_luaautomation:pcnaming",{
description = attrans("Passive Component Naming Tool\n\nRight-click to name a passive component."),
groups = {cracky=1}, -- key=name, value=rating; rating=1..3.
inventory_image = "atlatc_pcnaming.png",
wield_image = "atlatc_pcnaming.png",
stack_max = 1,
on_place = function(itemstack, placer, pointed_thing)
local pname = placer:get_player_name()
if not pname then
return
end
if not minetest.check_player_privs(pname, {atlatc=true}) then
minetest.chat_send_player(pname, "Missing privilege: atlatc")
return
end
if pointed_thing.type=="node" then
local pos=pointed_thing.under
if advtrains.is_protected(pos, pname) then
minetest.record_protection_violation(pos, pname)
return
end
local node = advtrains.ndb.get_node(pos)
if node.name and (minetest.get_item_group(node.name, "advtrains_signal")>0 or advtrains.is_passive(pos)) then
--look if this one already has a name
local pn=""
for name, npos in pairs(atlatc.pcnaming.name_map) do
if vector.equals(npos, pos) then
pn=name
end
end
minetest.show_formspec(pname, "atlatc_naming_"..minetest.pos_to_string(pos), "field[pn;Set name of component (empty to clear);"..minetest.formspec_escape(pn).."]")
end
end
end,
})
minetest.register_on_player_receive_fields(function(player, formname, fields)
local pts=string.match(formname, "^atlatc_naming_(.+)")
if pts then
local pos=minetest.string_to_pos(pts)
if fields.pn then
--first remove all occurences
for name, npos in pairs(atlatc.pcnaming.name_map) do
if vector.equals(npos, pos) then
atlatc.pcnaming.name_map[name]=nil
end
end
if fields.pn~="" then
atlatc.pcnaming.name_map[fields.pn]=pos
end
end
end
end)
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