On the shared stracks, both players (owner of track and owner of train) must have opportunity to do following tasks:
1) turn train around
2) start/stop train
3) send train to depo
4) ignore signals
That allow both sides to "terorise" each others so no-one would be "winner or loser". But also that give ability to both sides to solve stuck or any problems and prevent "terrorism"
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When company is bancrupted and others player's train is actualy by some of its part on bancupted company's track tile, i suppost the following:
1) Train must inmediatly stop there, where he actualy is.
2) Tracks tiles of bancupted comany under the train will be converted to the actual player company for some real price even he dont have money.
More compicated is situation which is big problem i suppoust end would be needed to solve in future versions:
when someone else is buying company and will not more allow track sharing. I suppoust that in that exactly momment when that happends must:
1) Trains, which are actualy on shared track title will be:
a) denyed to use shared depos
b) send to the depo for service where NO-ONE can change that (but must still react on commands turn,stop/start,ignore signals).
c) when they enter to depo, set denyed to use shared tracks
d) when they have shared depos/stations/signs on theyr destination list, they will stay in depo, others will be released from the depo
2) Trains, which have shared depos/stations/signs on theyr destination list, will be solved by the same way as in point 1.
3) All remainings and new trains must be set to "not use shared tiles/depos/stations" anymore.
4) Afther 1 or 3 months, for any train would be set global settings to not use shared tracks.
EDIT!
Or cleaner/simpler solution which you can easily add to the next version:
When is track sharing turned ON, so it is turned ON for everyone for whole game and noone can turn off that, so problem above dissapears.
Every player can have independent (window) opportunity, to set one price ( commont for income and pay), independend for every of 3 shared service (tracks/stations/depods).
But finaly there would be only one final and common price for all players, independent for every of shared services (one for tracks, one for stations, one for depods). And that would be some arthmetic mean/average of prices set by all players depending on how many stations/track tiles nad depods they have.
Example: how to calculate global price for shared tt (tt=track tiles):
player1 have total of 200tt, he set price on 10
player2 have total of 100tt, he set price on 20
player3 have total of 50tt, he set price on 1
player4 have total of 1tt, he set price on 500
player5 have total of 0tt, he set price on 500
First we need do know how much tt are in the game = 351tt total, as we can see in our example situation. So next step is to calculate, who have how strong power (percent per) on final price, based on amout of tt owned.
per=(AmountOfPlayerTiles*100)/TotalTrackTiles
per1=(200tt * 100)/351tt =57,14
per2=(100tt * 100)/351tt =28,57
per3=(50tt * 100)/351tt =14,29
per4=(1tt * 100)/351tt = 0,29
per5=(0tt * 100)/351tt = 0
Nex step is to calculate player prices, where "wis" is wish price from player:
pri=(per * wis) / 100
pri1=(57.14 * 10) / 100 = 5,714
pri2=(28,57 * 20) / 100 = 5,714
pri3=(14,29 * 1) / 100 = 0,1429
pri4=(0,29 * 500) / 100 = 1,45
pri5=(0 * 500) / 100 = 0
So final price would be pri1+pri2+pri3+pri4+pri5=cca 13,02. The same way (by amount of stations and depods) can be calculated for station sharing and depo sharing service.
PS: there can be good to have predefined maximum player wish price per title/depo/station, beffore the game starts from, maybe in "patch settings" menu.
BTW: Can you release what you have actualy done from v0.4 ? The v0.35 for r13205 would be great
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) with my local version.