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-rw-r--r--advtrains/locale/advtrains.de.tr5
-rw-r--r--advtrains/trackplacer.lua50
-rw-r--r--advtrains/tracks.lua24
3 files changed, 68 insertions, 11 deletions
diff --git a/advtrains/locale/advtrains.de.tr b/advtrains/locale/advtrains.de.tr
index 520b200..f0d797f 100644
--- a/advtrains/locale/advtrains.de.tr
+++ b/advtrains/locale/advtrains.de.tr
@@ -64,3 +64,8 @@ Passenger Wagon=Passagierwaggon
Box wagon=Güterwaggon
Subway Passenger Wagon=U-Bahn-Waggon
The wagon's inventory is not empty!=Das Inventar dieses Waggons ist nicht leer!
+This track can not be changed!=Diese Schiene kann nicht geändert werden!
+This track can not be rotated!=Diese Schiene kann nicht gedreht werden!
+Position is occupied by a train.=Ein Zug steht an dieser Position.
+There's a Track Circuit Break here.=Hier ist eine Gleisabschnittsgrenze (TCB).
+There's a Signal Influence Point here.=Hier ist ein Signal-Beeinflussungspunkt.
diff --git a/advtrains/trackplacer.lua b/advtrains/trackplacer.lua
index db65cd9..904d851 100644
--- a/advtrains/trackplacer.lua
+++ b/advtrains/trackplacer.lua
@@ -120,6 +120,11 @@ function tp.rail_and_can_be_bent(originpos, conn)
return advtrains.conn_matches_to(conn, cconns)
end
end
+ -- If the rail is not allowed to be modified, also only use if already in desired direction
+ if not advtrains.can_dig_or_modify_track(pos) then
+ local cconns=advtrains.get_track_connections(node.name, node.param2)
+ return advtrains.conn_matches_to(conn, cconns)
+ end
--rail at other end?
local adj1, adj2=tp.find_already_connected(pos)
if adj1 and adj2 then
@@ -326,15 +331,7 @@ minetest.register_craftitem("advtrains:trackworker",{
local node=minetest.get_node(pos)
--if not advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then return end
- if advtrains.get_train_at_pos(pos) then return end
- if has_aux1_down then
- --feature: flip the node by 180°
- --i've always wanted this!
- advtrains.ndb.swap_node(pos, {name=node.name, param2=(node.param2+2)%4})
- return
- end
-
local nnprefix, suffix, rotation=string.match(node.name, "^(.+)_([^_]+)(_[^_]+)$")
--atdebug(node.name.."\npattern recognizes:"..nnprefix.." / "..suffix.." / "..rotation)
--atdebug("nntab: ",tp.tracks[nnprefix])
@@ -346,6 +343,28 @@ minetest.register_craftitem("advtrains:trackworker",{
return
end
end
+
+ -- check if the node is modify-protected
+ if advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then
+ -- is a track, we can query
+ local can_modify, reason = advtrains.can_dig_or_modify_track(pos)
+ if not can_modify then
+ local str = attrans("This track can not be rotated!")
+ if reason then
+ str = str .. " " .. reason
+ end
+ minetest.chat_send_player(placer:get_player_name(), str)
+ return
+ end
+ end
+
+ if has_aux1_down then
+ --feature: flip the node by 180°
+ --i've always wanted this!
+ advtrains.ndb.swap_node(pos, {name=node.name, param2=(node.param2+2)%4})
+ return
+ end
+
local modext=tp.tracks[nnprefix].twrotate[suffix]
if rotation==modext[#modext] then --increase param2
@@ -390,6 +409,21 @@ minetest.register_craftitem("advtrains:trackworker",{
return
end
end
+
+ -- check if the node is modify-protected
+ if advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then
+ -- is a track, we can query
+ local can_modify, reason = advtrains.can_dig_or_modify_track(pos)
+ if not can_modify then
+ local str = attrans("This track can not be changed!")
+ if reason then
+ str = str .. " " .. reason
+ end
+ minetest.chat_send_player(user:get_player_name(), str)
+ return
+ end
+ end
+
local nextsuffix=tp.tracks[nnprefix].twcycle[suffix]
advtrains.ndb.swap_node(pos, {name=nnprefix.."_"..nextsuffix..rotation, param2=node.param2})
diff --git a/advtrains/tracks.lua b/advtrains/tracks.lua
index 45d45ff..6799c40 100644
--- a/advtrains/tracks.lua
+++ b/advtrains/tracks.lua
@@ -478,9 +478,7 @@ function advtrains.register_tracks(tracktype, def, preset)
not_blocking_trains=1,
},
- can_dig=function(pos)
- return not advtrains.get_train_at_pos(pos)
- end,
+ can_dig = advtrains.can_dig_or_modify_track,
after_dig_node=function(pos)
advtrains.ndb.update(pos)
end,
@@ -602,6 +600,26 @@ function advtrains.get_track_connections(name, param2)
return advtrains.rotate_conn_by(nodedef.at_conns, noderot*AT_CMAX/4), (nodedef.at_rail_y or 0), tracktype
end
+-- Function called when a track is about to be dug or modified by the trackworker
+-- Returns either true (ok) or false,"translated string describing reason why it isn't allowed"
+function advtrains.can_dig_or_modify_track(pos)
+ if advtrains.get_train_at_pos(pos) then
+ return false, attrans("Position is occupied by a train.")
+ end
+ -- interlocking: tcb, signal IP a.s.o.
+ if advtrains.interlocking then
+ -- TCB?
+ if advtrains.interlocking.db.get_tcb(pos) then
+ return false, attrans("There's a Track Circuit Break here.")
+ end
+ -- signal ip?
+ if advtrains.interlocking.db.is_ip_at(pos) then
+ return false, attrans("There's a Signal Influence Point here.")
+ end
+ end
+ return true
+end
+
-- slope placer. Defined in register_tracks.
--crafted with rail and gravel
local sl={}