When a train has empty schedule, is still often ends up in "auto" (e.g. after ctrl-click waypoint), which often is inconvenient (WASD and roboport don't work).
What ?When a train has empty schedule, force it to full-manual mode. Maybe even grey out the "Automatic" switch in GUI. This includes when the last temporary stop is auto-removed and there are no regular stops.
Why ?I'm not exactly sure how a train without a schedule is treated, but that state isn't very useful. You cannot control it with WASD. Your personal roboport doesn't work if you are in it. Inserters cannot load or unload its cargo. It is as if the train is moving but not really.
As I see it, a train schedule can be empty in one of two cases:
- It is a new train and you haven't filled the schedule yet.
- It is a "personal" train that you use to move around and carry stuff that didn't fit into your inventory.
The train already switches to "Auto" automatically when you Ctrl-click a temporary stop, so IMO it would also make sense to switch it back when it arrives, at least when there are no other stops. I feel that is especially true now when 1.1.0 lets you control the train you are in through the map instead of the train GUI.
Also, I personally often miss a little when Ctrl-clicking those temporary stops, and when the train arrives I have to manually switch to "Manual" before I can use WASD to get train's tail out of a busy intersection or whatever.