URL:
<http://gna.org/bugs/?23323>
Summary: OOS caused by mismatch in undo stack
Project: Battle for Wesnoth
Submitted by: None
Submitted on: Do 26 Feb 2015 17:45:16 UTC
Category: Bug
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None of the others
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 1.13-dev
Operating System: all
_______________________________________________________
Details:
Start the scenario below in a networked mp game, turns Delayed shroud updated
on on side 1 an move the Elvish Scout one hex so that we would now see the
enemy archer if DSU wasn't active. Then end the turn, side 2 will claim OOS.
This is casues by a missmatch in undo stack calculation during the moveto
event:
Side 1 thinks the movement is undoable since there was nothing send over the
network during that movment (the user choice is a local one).
Side 2 thinks different: It reads the user choice during the side event from
the network and assumes the move is not undoable, thus it flushes the undo
stacks applies the shroud upates and fires the sighted event(which did not
fire on side 1) -> OOS.
[scenario]
id= "OOS_TEST"
name= _ "MP Sync Test"
description= _ "This secnario is for testing mp sync errors"
map_data= "border_size=1
usage=map
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Ch, Ch, Gg, Ch, Ch, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, 1 Kh, Ch, Gg, Gg, Gg, Ch, 2 Kh, Rr^Vhc, Rr^Vhc,
Rr^Vhc, Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Ch, Gg, Ch, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg
Rr^Vhc, Rr^Vhc, Rr^Vhc, Gg, Gg, Gg, Gg, Gg, Gg, Gg, Rr^Vhc, Rr^Vhc, Rr^Vhc,
Gg"
experience_modifier=20%
turns=-1
{DEFAULT_SCHEDULE}
next_scenario = "01_FIRST_TEST"
[side]
side= 1
id= "leader1"
controller= "human"
team_name= "Good"
village_gold= 5
income= 20
share_maps= yes
share_view= yes
shroud= yes
fog = yes
gold= 5000
recruit=Elvish Archer,Elvish Fighter,Elvish Scout,Elvish Shaman
[unit]
type = "Elvish Scout"
random_traits = no
x = 12
y = 4
canrecruit = yes
[/unit]
[/side]
[side]
side= 2
id= "leader2"
controller= "human"
team_name= "Evil"
village_gold= 5
income= 20
share_maps= yes
share_view= yes
shroud= yes
fog= yes
gold= 5000
recruit= "Elvish Archer,Elvish Fighter,Elvish Scout,Elvish
Shaman"
no_leader= yes
[unit]
type = "Elvish Archer"
random_traits = no
x = 12
y = 4
canrecruit = yes
[/unit]
[/side]
[event]
name = "moveto"
first_time_only = no
[allow_undo]
[/allow_undo]
[message]
speaker = narrator
message = "tired from walking?"
[option]
message = "yes"
[command]
[/command]
[/option]
[option]
message = "no"
[command]
[/command]
[/option]
[/message]
[/event]
[event]
name = "sighted"
first_time_only = no
[message]
speaker = narrator
message = "Yes or no"
[option]
message = "yes"
[command]
[/command]
[/option]
[option]
message = "no"
[command]
[/command]
[/option]
[/message]
[/event]
[/scenario]
_______________________________________________________
Reply to this item at:
<http://gna.org/bugs/?23323>
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