nethack-gwaa-kiwi/nethack
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fix broken migrating monster arrival

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If the first monster on the migrating_mons list couldn't arrive and
was put back on the list to try again later, 'later' would happen
immediately and the program looped forever trying and failing to
bring that monster to the level.

Defer repeat attempts at migration until losedogs() has been through
the whole migrating_mons list.  mon_arrive() now populates a new
list called failed_arrivals and losedog() moves its contents, if any,
to migrating_mons prior to returning.
This commit is contained in:
PatR
2022-07-28 00:51:18 -07:00
parent 1a367c7ff5
commit e13e514556
5 changed files with 54 additions and 20 deletions
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doc/fixes3-7-0.txt
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@@ -979,6 +979,8 @@ scared hostile monster which cannot move away will attack
prevent a fog cloud that has engulfed the hero from moving under closed doors
allow cutting a known spider web with wielded weapon by force-fighting the web
holes and trapdoors have a fixed exit level
recent changes to losedogs() could result in an infinite loop when migrating
monsters try to arrive as hero moves to a different level
Fixes to 3.7.0-x Problems that Were Exposed Via git Repository