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-rw-r--r--advtrains/trainlogic.lua58
1 files changed, 31 insertions, 27 deletions
diff --git a/advtrains/trainlogic.lua b/advtrains/trainlogic.lua
index eac7ddb..580a7d4 100644
--- a/advtrains/trainlogic.lua
+++ b/advtrains/trainlogic.lua
@@ -951,21 +951,23 @@ function advtrains.train_check_couples(train)
if not train.cpl_front then
-- recheck front couple
local front_trains, pos = advtrains.occ.get_occupations(train, atround(train.index) + CPL_CHK_DST)
- for tid, idx in pairs(front_trains) do
- local other_train = advtrains.trains[tid]
- if not advtrains.train_ensure_init(tid, other_train) then
- atwarn("Train",tid,"is not initialized! Couldn't check couples!")
- return
- end
- --atdebug(train.id,"front: ",idx,"on",tid,atround(other_train.index),atround(other_train.end_index))
- if other_train.velocity == 0 then
- if idx>=other_train.index and idx<=other_train.index + CPL_ZONE then
- createcouple(pos, train, true, other_train, true)
- break
+ if minetest.get_node_or_nil(pos) then -- if the position is loaded...
+ for tid, idx in pairs(front_trains) do
+ local other_train = advtrains.trains[tid]
+ if not advtrains.train_ensure_init(tid, other_train) then
+ atwarn("Train",tid,"is not initialized! Couldn't check couples!")
+ return
end
- if idx<=other_train.end_index and idx>=other_train.end_index - CPL_ZONE then
- createcouple(pos, train, true, other_train, false)
- break
+ --atdebug(train.id,"front: ",idx,"on",tid,atround(other_train.index),atround(other_train.end_index))
+ if other_train.velocity == 0 then
+ if idx>=other_train.index and idx<=other_train.index + CPL_ZONE then
+ createcouple(pos, train, true, other_train, true)
+ break
+ end
+ if idx<=other_train.end_index and idx>=other_train.end_index - CPL_ZONE then
+ createcouple(pos, train, true, other_train, false)
+ break
+ end
end
end
end
@@ -979,20 +981,22 @@ function advtrains.train_check_couples(train)
if not train.cpl_back then
-- recheck back couple
local back_trains, pos = advtrains.occ.get_occupations(train, atround(train.end_index) - CPL_CHK_DST)
- for tid, idx in pairs(back_trains) do
- local other_train = advtrains.trains[tid]
- if not advtrains.train_ensure_init(tid, other_train) then
- atwarn("Train",tid,"is not initialized! Couldn't check couples!")
- return
- end
- if other_train.velocity == 0 then
- if idx>=other_train.index and idx<=other_train.index + CPL_ZONE then
- createcouple(pos, train, false, other_train, true)
- break
+ if minetest.get_node_or_nil(pos) then -- if the position is loaded...
+ for tid, idx in pairs(back_trains) do
+ local other_train = advtrains.trains[tid]
+ if not advtrains.train_ensure_init(tid, other_train) then
+ atwarn("Train",tid,"is not initialized! Couldn't check couples!")
+ return
end
- if idx<=other_train.end_index and idx>=other_train.end_index - CPL_ZONE then
- createcouple(pos, train, false, other_train, false)
- break
+ if other_train.velocity == 0 then
+ if idx>=other_train.index and idx<=other_train.index + CPL_ZONE then
+ createcouple(pos, train, false, other_train, true)
+ break
+ end
+ if idx<=other_train.end_index and idx>=other_train.end_index - CPL_ZONE then
+ createcouple(pos, train, false, other_train, false)
+ break
+ end
end
end
end