#43251: Chained upgrades lead to actionenabler inconsistency
Open Date: 2021-11-20 14:59
Last Update: 2022-02-04 21:50
URL for this Ticket:
https://osdn.net//projects/freeciv/ticket/43251
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Last Changes/Comment on this Ticket:
2022-02-04 21:50 Updated by: cazfi
Comment:
Reply To cazfi
1) That we add a new action type
This would work for "A -> B -> C" where we would block update to C. As far as I can see it would have some implications on "A -> B -> C -> D" where we would want to block update to D (if we don't want that blocking, one can still use the current action type); update price of A -> C would go up, as it's more expensive to update A -> B & B -> C, and UI-wise user would need to do two update actions.
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Ticket Status:
Reporter: ec429
Owner: (None)
Type: Bugs
Status: Open
Priority: 5 - Medium
MileStone: (None)
Component: (None)
Severity: 5 - Medium
Resolution: None
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Ticket details:
In my ruleset, I have a NoUpgrade flag that controls the Upgrade action, so that some units can be obsoleted (to declutter the build list) without being able to be upgraded (which e.g. in some cases bypasses an impr_req on the new unit).
[actionenabler_upgrade_unit]
action = "Upgrade Unit"
actor_reqs =
{ "type", "name", "range", "present"
"DiplRel", "Foreign", "Local", FALSE
"UnitFlag", "NoUpgrade", "Local", FALSE
}
However, if I have three units X → Y → Z (where → represents obsolete_by), and Y has the NoUpgrade flag, an X can still be directly upgraded to Z; I don't see any way to work around this.
In my opinion, the Upgrade Unit action should check that the entire chain of obsolete_by would all pass the actionenabler individually (and if not, upgrade to the point where it fails, so that e.g. X can still upgrade to Y after inventing Z), rather than just looking at the endpoints.
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