Announce next destination

[amalon]

Feature Request

Description

It'd be useful to be able to replace some part of an announcement with different things which differ between trains.
Text replacements that could be useful:

• current destination (%d%)
• name of next destination (%D%). You might have a destination for each platform (LondonP1, LondonP2), but for the purposes of the sign you only want "London" for both destinations, I suppose that'd require an extra sign after a destination sign to give a text name for that specific destination).
• last destination on route (%r-1% / %rl% or %R-1% / %Rl% for text name of destination)
• route name (this is trickier, it doesn't seem to store the saved route name that has been loaded, alternatively key/value pairs in tags? so if tag route=central is set, then maybe %Troute% turns into "central")

Examples

After a station used by multiple train routes:

[+train:south]
announce
This is a %Troute% train to %Rl%
Next stop: %D%

[bergerkiller]

My idea here was to give traincarts a proper placeholderapi integration, and then using papi in announce messages. This same mechanism can then be used for a future text billboard attachment thingy.

Currently busy with other things though