diff options
| -rwxr-xr-x[-rw-r--r--] | advtrains_luaautomation/README.md | 2 | ||||
| -rwxr-xr-x[-rw-r--r--] | advtrains_luaautomation/atc_rail.lua | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/advtrains_luaautomation/README.md b/advtrains_luaautomation/README.md index 683e45c..de4be3b 100644..100755 --- a/advtrains_luaautomation/README.md +++ b/advtrains_luaautomation/README.md @@ -260,6 +260,8 @@ There are several functions available especially for shunting operations. Some o - `split_at_index(index, atc_command)` Splits the train at the specified index, into a train with index-1 wagons and a second train starting with the index-th wagon. The `atc_command` specified is sent to the second train after decoupling. `"S0"` or `"B0"` is common to ensure any locomotives in the remaining train don't continue to move. + `index` must be more than 1 to avoid trying to decouple the very front of a train. + Example: train has wagons `"foo","foo","foo","bar","bar","bar"` Command: `split_at_index(4,"S0")` Result: first train (continues at previous speed): `"foo","foo","foo"`, second train (slows at S0): `"bar","bar","bar"` diff --git a/advtrains_luaautomation/atc_rail.lua b/advtrains_luaautomation/atc_rail.lua index bfd7357..6c157e3 100644..100755 --- a/advtrains_luaautomation/atc_rail.lua +++ b/advtrains_luaautomation/atc_rail.lua @@ -56,7 +56,7 @@ function r.fire_event(pos, evtdata, appr_internal) split_at_index = function(index, cmd) if not train_id then return false end assertt(cmd, "string") - if type(index) ~= "number" then + if type(index) ~= "number" or index < 2 then return false end local new_id = advtrains.split_train_at_index(train, index) |