diff options
Diffstat (limited to 'advtrains_luaautomation/atc_rail.lua')
| -rw-r--r-- | advtrains_luaautomation/atc_rail.lua | 123 |
1 files changed, 78 insertions, 45 deletions
diff --git a/advtrains_luaautomation/atc_rail.lua b/advtrains_luaautomation/atc_rail.lua index 6083dfc..33b5d00 100644 --- a/advtrains_luaautomation/atc_rail.lua +++ b/advtrains_luaautomation/atc_rail.lua @@ -5,7 +5,10 @@ --Using subtable local r={} -function r.fire_event(pos, evtdata) +-- Note on appr_internal: +-- The Approach callback is a special corner case: the train is not on the node, and it is executed synchronized +-- (in the train step right during LZB traversal). We therefore need access to the train id and the lzbdata table +function r.fire_event(pos, evtdata, appr_internal) local ph=minetest.pos_to_string(pos) local railtbl = atlatc.active.nodes[ph] @@ -27,6 +30,13 @@ function r.fire_event(pos, evtdata) local train_id=advtrains.get_train_at_pos(pos) local train, atc_arrow, tvel if train_id then train=advtrains.trains[train_id] end + + if not train and appr_internal then + -- also use the train when called as an approach callback + train_id = appr_internal.train_id + train = appr_internal.train + end + if train then if not train.path then --we happened to get in between an invalidation step @@ -92,20 +102,9 @@ function r.fire_event(pos, evtdata) advtrains.train_step_fc(train) end, set_shunt = function() + -- enable shunting mode if not train_id then return false end - train.autocouple = true - end, - unset_shunt = function() - if not train_id then return false end - train.autocouple = nil - end, - set_autocouple = function () - if not train_id then return false end - train.autocouple = true - end, - unset_autocouple = function () - if not train_id then return false end - train.autocouple = nil + train.is_shunt = true end, set_line = function(line) if type(line)~="string" and type(line)~="number" then @@ -150,45 +149,79 @@ function r.fire_event(pos, evtdata) advtrains.trains[train_id].text_inside=text return true end, + atc_set_lzb_tsr = function(speed) + if not appr_internal then + error("atc_set_lzb_tsr() can only be used during 'approach' events!") + end + + local index = appr_internal.index + advtrains.lzb_add_checkpoint(train, index, speed, nil) + + return true + end, } atlatc.active.run_in_env(pos, evtdata, customfct) end -if minetest.get_modpath("advtrains_train_track") ~= nil then - advtrains.register_tracks("default", { - nodename_prefix="advtrains_luaautomation:dtrack", - texture_prefix="advtrains_dtrack_atc", - models_prefix="advtrains_dtrack", - models_suffix=".b3d", - shared_texture="advtrains_dtrack_shared_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) +advtrains.register_tracks("default", { + nodename_prefix="advtrains_luaautomation:dtrack", + texture_prefix="advtrains_dtrack_atc", + models_prefix="advtrains_dtrack", + models_suffix=".b3d", + shared_texture="advtrains_dtrack_shared_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 _, conns=advtrains.get_rail_info_at(pos, advtrains.all_tracktypes) + atlatc.active.nodes[ph].arrowconn=conns[1].c + 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, + on_train_approach = function(pos, train_id, train, index, lzbdata) + -- Insert an event only if the rail indicated that it supports approach callbacks local ph=minetest.pos_to_string(pos) - local _, conns=advtrains.get_rail_info_at(pos, advtrains.all_tracktypes) - atlatc.active.nodes[ph].arrowconn=conns[1].c + local railtbl = atlatc.active.nodes[ph] + -- uses a "magic variable" in the local environment of the node + -- This hack is necessary because code might not be prepared to get approach events... + if railtbl and railtbl.data and railtbl.data.__approach_callback_mode then + local acm = railtbl.data.__approach_callback_mode + if acm==2 or (acm==1 and train.path_cn[index] == 1) then + local evtdata = {type="approach", approach=true, id=train_id} + -- This event is *required* to run synchronously, because it might set the ars_disable flag on the train and add LZB checkpoints, + -- although this is generally discouraged because this happens right in a train step + -- At this moment, I am not aware whether this may cause side effects, and I must encourage users not to do expensive calculations here. + r.fire_event(pos, evtdata, {train_id = train_id, train = train, index = index, lzbdata = lzbdata}) + end + end end, - advtrains = atlatc.active.trackdef_advtrains_defs, - luaautomation = { - fire_event=r.fire_event - }, - digiline = { - receptor = {}, - effector = { - action = atlatc.active.on_digiline_receive - }, + }, + luaautomation = { + fire_event=r.fire_event + }, + digiline = { + receptor = {}, + effector = { + action = atlatc.active.on_digiline_receive }, - } - end, - }, advtrains.trackpresets.t_30deg_straightonly) -end + }, + } + end, +}, advtrains.trackpresets.t_30deg_straightonly) + atlatc.rail = r |