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-- atc_rail.lua
-- registers and handles the ATC rail. Active component.
-- This is the only component that can interface with trains, so train interface goes here too.
--Using subtable
local r={}
function r.fire_event(pos, evtdata)
local ph=minetest.pos_to_string(pos)
local railtbl = atlatc.active.nodes[ph]
if not railtbl then
atwarn("LuaAutomation ATC interface rail at",ph,": Data not in memory! Please visit position and click 'Save'!")
return
end
local arrowconn = railtbl.arrowconn
--prepare ingame API for ATC. Regenerate each time since pos needs to be known
--If no train, then return false.
local train_id=advtrains.detector.on_node[ph]
local train, atc_arrow, tvel
if train_id then train=advtrains.trains[train_id] end
if train then
if not train.path then
--we happened to get in between an invalidation step
--delay
atlatc.interrupt.add(0,pos,evtdata)
return
end
for index, ppos in pairs(train.path) do
if vector.equals(advtrains.round_vector_floor_y(ppos), pos) then
atc_arrow =
vector.equals(
advtrains.dirCoordSet(pos, arrowconn),
advtrains.round_vector_floor_y(train.path[index+train.movedir])
)
end
end
if atc_arrow==nil then
atwarn("LuaAutomation ATC rail at", pos, ": Rail not on train's path! Can't determine arrow direction. Assuming +!")
atc_arrow=true
tvel=train.velocity
end
end
local customfct={
atc_send = function(cmd)
if not train_id then return false end
advtrains.atc.train_reset_command(train_id)
train.atc_command=cmd
train.atc_arrow=atc_arrow
return true
end,
atc_reset = function(cmd)
if not train_id then return false end
advtrains.atc.train_reset_command(train_id)
return true
end,
atc_arrow = atc_arrow,
atc_id = train_id,
atc_speed = tvel,
}
atlatc.active.run_in_env(pos, evtdata, customfct)
end
advtrains.register_tracks("default", {
nodename_prefix="advtrains_luaautomation:dtrack",
texture_prefix="advtrains_dtrack_atc",
models_prefix="advtrains_dtrack_detector",
models_suffix=".b3d",
shared_texture="advtrains_dtrack_rail_atc.png",
description=atltrans("LuaAutomation ATC Rail"),
formats={},
get_additional_definiton = function(def, preset, suffix, rotation)
return {
after_place_node = atlatc.active.after_place_node,
after_dig_node = atlatc.active.after_dig_node,
on_receive_fields = function(pos, ...)
atlatc.active.on_receive_fields(pos, ...)
--set arrowconn (for ATC)
local ph=minetest.pos_to_string(pos)
local _, conn1=advtrains.get_rail_info_at(pos, advtrains.all_tracktypes)
atlatc.active.nodes[ph].arrowconn=conn1
end,
advtrains = {
on_train_enter = function(pos, train_id)
--do async. Event is fired in train steps
atlatc.interrupt.add(0, pos, {type="train", train=true, id=train_id})
end,
},
luaautomation = {
fire_event=r.fire_event
}
}
end
}, advtrains.trackpresets.t_30deg_straightonly)
atlatc.rail = r
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