URL:
<http://gna.org/bugs/?19512>
Summary: unit move assert is_tiles_adjacent() failed
Project: Freeciv
Submitted by: cazfi
Submitted on: Wed 29 Feb 2012 10:31:05 PM EET
Category: ai
Severity: 3 - Normal
Priority: 5 - Normal
Status: Ready For Test
Assigned to: None
Originator Email:
Open/Closed: Open
Release:
Discussion Lock: Any
Operating System: None
Planned Release: 2.3.2, 2.4.0, 2.5.0
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Details:
I think I've seen this assert failing once or twice before over the years, but
now I first time got reproducible case from autogame.
Assert fails when autosettler tries to take first step in its path. Path
itself is legal, but settler itself is no longer in the beginning of the path
but in some other tile.
This can happen due to recursice displacement of settlers:
1) Path for settler A is constructed
2) A displaces B, causing autosettler for B to run
3) B displaces C, causing autosettler for C to run
4) C displaces A, causing autosettler for A to run
5) A moves
6) Back to handling C
7) Back to handling B
8) Back to handling A
9) Attempt to use path constructed in 1
Fix attached. Bug exist in older branches, but patch does not apply to S2_2. I
mark this for S2_3, S2_4 and TRUNK only for now.
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File Attachments:
-------------------------------------------------------
Date: Wed 29 Feb 2012 10:31:05 PM EET Name: RecDisplSettMoved.diff Size: 2kB
By: cazfi
<http://gna.org/bugs/download.php?file_id=15240>
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