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-- autonaming.lua
-- Automatically set names of signals (and maybe track sections) based on numbering
local function find_highest_count(prefix)
local cnt = 0
local pattern = "^"..prefix.."(%d+)$"
local alltcb = advtrains.interlocking.db.get_all_tcb()
for _,tcb in pairs(alltcb) do
for _,tcbs in pairs(tcb) do
if tcbs.signal_name then
local mnum = string.match(tcbs.signal_name, pattern)
if mnum then
local n = tonumber(mnum)
if n and n > cnt then
cnt = n
end
end
end
end
end
return cnt
end
-- { pname = { prefix = "FOO", count = 7 } }
local player_prefix_info = {}
function advtrains.interlocking.set_autoname_prefix(pname, prefix)
if prefix and #prefix>0 then
-- check that it is valid
if not string.match(prefix,"[A-Za-z_]+") then
return false, "Illegal prefix, only letters and _ allowed"
end
-- scan database for this prefix to find out the highest count
local count = find_highest_count(prefix)
player_prefix_info[pname] = { prefix = prefix, count = count}
return true, "Prefix set, next signal name will be: ".. advtrains.interlocking.get_next_autoname(pname, true)
else
player_prefix_info[pname] = nil
return true, "Prefix unset, signals are not auto-named for you!"
end
end
function advtrains.interlocking.get_next_autoname(pname, no_increment)
local pi = player_prefix_info[pname]
if pi then
local name = pi.prefix..(pi.count+1)
if not no_increment then pi.count = pi.count+1 end
return name
else
return nil
end
end
function advtrains.interlocking.add_autoname_to_tcbs(tcbs, pname)
if not tcbs or not pname then return end
if tcbs.signal_name then return end -- name already set
tcbs.signal_name = advtrains.interlocking.get_next_autoname(pname)
end
minetest.register_chatcommand("at_nameprefix",
{
params = "<prefix>",
description = "Sets the current prefix for automatically naming interlocking components. Example: '/at_nameprefix TEST' - signals will be named TEST1, TEST2 and so on",
privs = {interlocking = true},
func = advtrains.interlocking.set_autoname_prefix,
})
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