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|
--atc.lua
--registers and controls the ATC system
local atc={}
local eval_conditional
-- ATC persistence table. advtrains.atc is created by init.lua when it loads the save file.
atc.controllers = {}
function atc.load_data(data)
local temp = data and data.controllers or {}
--transcode atc controller data to node hashes: table access times for numbers are far less than for strings
for pts, data in pairs(temp) do
if type(pts)=="number" then
pts=minetest.pos_to_string(minetest.get_position_from_hash(pts))
end
atc.controllers[pts] = data
end
end
function atc.save_data()
return {controllers = atc.controllers}
end
--contents: {command="...", arrowconn=0-15 where arrow points}
--general
function atc.train_set_command(train, command, arrow)
atc.train_reset_command(train, true)
train.atc_delay = 0
train.atc_arrow = arrow
train.atc_command = command
end
function atc.send_command(pos, par_tid)
local pts=minetest.pos_to_string(pos)
if atc.controllers[pts] then
--atprint("Called send_command at "..pts)
local train_id = par_tid or advtrains.get_train_at_pos(pos)
if train_id then
if advtrains.trains[train_id] then
--atprint("send_command inside if: "..sid(train_id))
if atc.controllers[pts].arrowconn then
atlog("ATC controller at",pts,": This controller had an arrowconn of", atc.controllers[pts].arrowconn, "set. Since this field is now deprecated, it was removed.")
atc.controllers[pts].arrowconn = nil
end
local train = advtrains.trains[train_id]
local index = advtrains.path_lookup(train, pos)
local iconnid = 1
if index then
iconnid = train.path_cn[index]
else
atwarn("ATC rail at", pos, ": Rail not on train's path! Can't determine arrow direction. Assuming +!")
end
local command = atc.controllers[pts].command
atc.train_set_command(train, command, iconnid==1)
atprint("Sending ATC Command to", train_id, ":", command, "iconnid=",iconnid)
return true
else
atwarn("ATC rail at", pos, ": Sending command failed: The train",train_id,"does not exist. This seems to be a bug.")
end
else
atwarn("ATC rail at", pos, ": Sending command failed: There's no train at this position. This seems to be a bug.")
-- huch
--local train = advtrains.trains[train_id_temp_debug]
--atlog("Train speed is",train.velocity,", have moved",train.dist_moved_this_step,", lever",train.lever)
--advtrains.path_print(train, atlog)
-- TODO track again when ATC bugs occur...
end
else
atwarn("ATC rail at", pos, ": Sending command failed: Entry for controller not found.")
atwarn("ATC rail at", pos, ": Please visit controller and click 'Save'")
end
return false
end
-- Resets any ATC commands the train is currently executing, including the target speed (tarvelocity) it is instructed to hold
-- if keep_tarvel is set, does not clear the tarvelocity
function atc.train_reset_command(train, keep_tarvel)
train.atc_command=nil
train.atc_delay=nil
train.atc_brake_target=nil
train.atc_wait_finish=nil
train.atc_arrow=nil
if not keep_tarvel then
train.tarvelocity=nil
end
end
--nodes
local idxtrans={static=1, mesecon=2, digiline=3}
local apn_func=function(pos)
-- FIX for long-persisting ndb bug: there's no node in parameter 2 of this function!
local meta=minetest.get_meta(pos)
if meta then
meta:set_string("infotext", attrans("ATC controller, unconfigured."))
meta:set_string("formspec", atc.get_atc_controller_formspec(pos, meta))
end
end
advtrains.atc_function = function(def, preset, suffix, rotation)
return {
after_place_node=apn_func,
after_dig_node=function(pos)
advtrains.invalidate_all_paths(pos)
advtrains.ndb.clear(pos)
local pts=minetest.pos_to_string(pos)
atc.controllers[pts]=nil
end,
on_receive_fields = function(pos, formname, fields, player)
if advtrains.is_protected(pos, player:get_player_name()) then
minetest.record_protection_violation(pos, player:get_player_name())
return
end
local meta=minetest.get_meta(pos)
if meta then
if not fields.save then
--[[--maybe only the dropdown changed
if fields.mode then
meta:set_string("mode", idxtrans[fields.mode])
if fields.mode=="digiline" then
meta:set_string("infotext", attrans("ATC controller, mode @1\nChannel: @2", fields.mode, meta:get_string("command")) )
else
meta:set_string("infotext", attrans("ATC controller, mode @1\nCommand: @2", fields.mode, meta:get_string("command")) )
end
meta:set_string("formspec", atc.get_atc_controller_formspec(pos, meta))
end]]--
return
end
--meta:set_string("mode", idxtrans[fields.mode])
meta:set_string("command", fields.command)
--meta:set_string("command_on", fields.command_on)
meta:set_string("channel", fields.channel)
--if fields.mode=="digiline" then
-- meta:set_string("infotext", attrans("ATC controller, mode @1\nChannel: @2", fields.mode, meta:get_string("command")) )
--else
meta:set_string("infotext", attrans("ATC controller, mode @1\nCommand: @2", "-", meta:get_string("command")) )
--end
meta:set_string("formspec", atc.get_atc_controller_formspec(pos, meta))
local pts=minetest.pos_to_string(pos)
local _, conns=advtrains.get_rail_info_at(pos, advtrains.all_tracktypes)
atc.controllers[pts]={command=fields.command}
if #advtrains.occ.get_trains_at(pos) > 0 then
atc.send_command(pos)
end
end
end,
advtrains = {
on_train_enter = function(pos, train_id)
atc.send_command(pos, train_id)
end,
},
}
end
function atc.get_atc_controller_formspec(pos, meta)
local mode=tonumber(meta:get_string("mode")) or 1
local command=meta:get_string("command")
local command_on=meta:get_string("command_on")
local channel=meta:get_string("channel")
local formspec="size[8,6]"
-- "dropdown[0,0;3;mode;static,mesecon,digiline;"..mode.."]"
if mode<3 then
formspec=formspec
.."style[command;font=mono]"
.."field[0.8,1.5;7,1;command;"..attrans("Command")..";"..minetest.formspec_escape(command).."]"
if tonumber(mode)==2 then
formspec=formspec
.."style[command_on;font=mono]"
.."field[0.8,3;7,1;command_on;"..attrans("Command (on)")..";"..minetest.formspec_escape(command_on).."]"
end
else
formspec=formspec.."field[0.8,1.5;7,1;channel;"..attrans("Digiline channel")..";"..minetest.formspec_escape(channel).."]"
end
return formspec.."button_exit[0.5,4.5;7,1;save;"..attrans("Save").."]"
end
function atc.execute_atc_command(id, train)
local _, e = advtrains.atcjit.execute(id, train)
if e then
atwarn(sid(id),e)
atc.train_reset_command(train, true)
end
end
minetest.register_chatcommand("at_get_lua",{
params = "<command>",
description = "Compile the given ATC command into Lua code and show the given code",
privs = {train_admin = true},
func = function(name, params)
local f, s = advtrains.atcjit.compile(params)
if not f then
return false, s or ("Unknown compilation error")
else
return true, s
end
end,
})
--move table to desired place
advtrains.atc=atc
|
