This change is intended to make it easier to make depot behaviour consistent
and faster to code when adding more features in the future
The user interface should hopefully not be affected by this
This will ensure that you can always get the same list when checking for vehicles in a depot (no need to duplicate code for each place, that needs such a list)
Since the vehicles are only looped once for each redraw, drawing speed is around twice as fast (measured to be 114%-121% faster depending on the number of vehicles in the game)
This turned out to be due to OFB_HALT_IN_DEPOT and OFB_SERVICE_IF_NEEDED using the same bit
It appears that it doesn't matter for the code, so I adapted the string selection code to handle this
DestinationID being a union of these types is just hassle without benefit and cannot be handled correctly everywhere because of local lack of information
-Codechange: unified the code for mass goto depot to avoid duplicated code
-Fix: Vehicles already on the way to depots will not be cancelled by mass goto depot (made it really hard to send all vehicles at once)
code to delete an empty shared orders list is now much simpler
cleaned up the code to handle button clicks
fixed an assert if widget 9 was pressed on a list with vehicles for another company
this makes the list type detection much easier and allowed an if cascade to be turned into a switch case
this also makes it easier to add more list types
at the depot and leave right away.
To tell the difference the status of stopping vehicles will be in red,
while servicing vehicles will be green.
-Codechange: remove some dead code in CmdSendAircraftToHangar() since it is
conflicting with new functionality. Now p2 means the same for all types
the list is available in the orders window and looks like the list buttons from the station windows (small vehicle)
The button is disabled if the vehicle do not have any shared orders or it got shared orders, but an empty order list
based on a patch by nycom, thought it ended up getting heavily modified
Thanks to TrueLight for proofreading and suggestions
-Codechange: introduced DestinationID, which is in fact an union of several types
Used in Order struct, so no longer StationID is abused for all targets.
Hangars are a big exception, as they use a station-id with GOTO_DEPOT (go figure)
CodeChange : Move almost all fixed strings from ON_PAINT event to Widget array using WWT_LABEL.
Feature : All "Select Refit Cargo" are now centered, instead of been left aligned
-Cleanup: fix whitespace related coding style issues in date.[ch]
-Cleanup: make original comments doxygen compatible and remove/change outdated comments
now the user will get an error if he tries to start the train and the status bar will say "no power" instead of "stopped"
Electric trains already driving in and out of non-electrified depots will still do so, but you can't start new ones
