Re: [Rails-devel] Problem with infinite trains

[Phil D. <de...@gm...>]

I've not even looked at the code but at a guess, is it possible that
the first train purchase of an unlimited decrements the trains
available number, sending it from -1 to -2?  That would explain why
the first train purchase works okay.  I'll have a peek at this when I
get home tonight, I am having the same problem with one of my
savefiles too

Phil

2010/1/22 Chris Shaffer <chr...@gm...>:
> We're using version 1.1.0 for compatibility reasons, so perhaps this
> has been fixed already?  Bug report described below, save file
> attached just prior to the bug.
>
> --
> Chris
>
> Please consider the environment before printing this e-mail.
>
>
>
>
> ---------- Forwarded message ----------
> From: Jonathan Hays
> Date: Thu, Jan 21, 2010 at 3:38 PM
> Subject: Re: [18EU-C] Chris
>
> Hi,
>
> Looking at the code and messing around with it a bit, I think I'm on
> the right track to spotting the problem.
> When loading the save game it dies with a NullPointerException.
>
> The loading of a save game basically consists of pulling some
> information from the top and then loading a sequence of action objects
> which encode every action taken by all players since the beginning of
> the game and executing them in turn.
>
> It dies when trying to execute my action of buying a T8.
>
> Now, for each train in the game there is an object - except when there
> are an infinite number of trains such as the T8 - this object is
> created during initialisation and the purchase of a train involves
> moving a reference to that object around from the previous owner to
> the new owner.
>
> Whatever the bug is, I think its to do with how the infinite trains
> are handled. It seems to work fine when entering the moves using the
> UI, but when loading them from a save game its somehow losing the T8's
> (except for the first one).
>
> One workaround is to hack the game.xml to put a finite (but large
> enough) number of T8s thus ensuring that there are always a fixed
> number of objects created at initialisation time.
>
> I've tested this and it works.
>
> Cheers,
>
> Jon
>
>
> On Thu, Jan 21, 2010 at 21:48, Jonathan Hays wrote:
>> nope. it can't load them either.
>>
>> Jon
>>
>>
>> On Thu, Jan 21, 2010 at 21:44, Jonathan Hays wrote:
>>> I can try and get 1.1.2 working with our saved game files.
>>>
>>> Jon
>>>
>>>
>>> On Thu, Jan 21, 2010 at 13:53, Chris Shaffer wrote:
>>>> So maybe there is something broken about the T8 phase change - I seem
>>>> to recall a mention on the rails-devel list recently about problems
>>>> with the grey tiles in an older version (i.e. what we're using now).
>>>>
>>>> --
>>>> Chris
>>>>
>>>> Please consider the environment before printing this e-mail.
>>>>
>>>>
>>>>
>>>> On Thu, Jan 21, 2010 at 5:52 AM, Jonathan Hays wrote:
>>>>> ok, so if you try to load a file and fail, it doesn't quit but it is
>>>>> left in such a state that you can't load another file at all - it
>>>>> always fails with the error Jim posted.
>>>>>
>>>>> If I start from the beginning of my turn and just lay the track I can
>>>>> save the game and reload it. If I reload the game from that point and
>>>>> continue my turn buying a T8 and then save, I cannot reload that save
>>>>> game file.
>>>>>
>>>>> Jon
>>>>>
>>>>>
>>>>> On Thu, Jan 21, 2010 at 13:36, Jonathan Hays  wrote:
>>>>>> and now its broken again. very strange.
>>>>>>
>>>>>> Jon
>>>>>>
>>>>>>
>>>>>> On Thu, Jan 21, 2010 at 12:45, Jonathan Hays wrote:
>>>>>>> ok, now its working again,.
>>>>>>>
>>>>>>>
>>>>>>> Jon
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Jan 21, 2010 at 12:38, Jonathan Hays wrote:
>>>>>>>> hmmm, I can't open the files on my linux box anymore.
>>>>>>>> The file I made last night was on my laptop at home.
>>>>>>>>
>>>>>>>> I'll try and read them on the laptop tonight - but its very odd.
>>>>>>>>
>>>>>>>> Jon
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thu, Jan 21, 2010 at 08:39, James Romano wrote:
>>>>>>>>> No, I can't open it either.  ("Load failed, reason:  null")
>>>>>>>>>
>>>>>>>>> I also can't open my save file to Jon ("Game setup from file Game.xml
>>>>>>>>> failed: Cannot reconfigure the ComponentManager.  Load failed, reason:
>>>>>>>>> Error in settin gup 18EU")
>>>>>>>>>
>>>>>>>>> Nor can I open Jon's earlier save to me (same error as above).  But I *did*
>>>>>>>>> open that file a few days ago, and I entered KPEV's turn, and saved for Jon.
>>>>>>>>>
>>>>>>>>> So, something has changed, since I can't open a file that I could open
>>>>>>>>> before.  Have we "upgraded" to a newer version of Rails or something?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Thu, Jan 21, 2010 at 12:28 AM, Chris Shaffer
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> Jim, can you open the file?  I'm getting the same error as before.
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Chris
>>>>>>>>>>
>>>>>>>>>> Please consider the environment before printing this e-mail.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Wed, Jan 20, 2010 at 2:05 PM, Jonathan Hays
>>>>>>>>>> wrote:
>>>>>>>>>> > Hi,
>>>>>>>>>> >
>>>>>>>>>> > ok, I think the problem was that I'd done a forced undo during my turn
>>>>>>>>>> > and got the game into a funny state.
>>>>>>>>>> > Hopefully, this one will work.
>>>>>>>>>> >
>>>>>>>>>> > Jon
>>>>>>>>>> >
>>>>>>>>>> >
>>>>>>>>>> > On Wed, Jan 20, 2010 at 17:17, Jonathan Hays
>>>>>>>>>> > wrote:
>>>>>>>>>> >> Hi,
>>>>>>>>>> >>
>>>>>>>>>> >> I'll deal with it once I get home from work.
>>>>>>>>>> >>
>>>>>>>>>> >> Jon
>>>>>>>>>> >>
>>>>>>>>>> >>
>>>>>>>>>> >> On Wed, Jan 20, 2010 at 17:09, James Romano
>>>>>>>>>> >> wrote:
>>>>>>>>>> >>> Any progress on this?
>>>>>>>>>> >>>
>>>>>>>>>> >>> On Tue, Jan 19, 2010 at 10:20 PM, Chris Shaffer
>>>>>>>>>> >>> wrote:
>>>>>>>>>> >>>>
>>>>>>>>>> >>>> I get a "load failed: reason null" error when I try to open the save
>>>>>>>>>> >>>> file.  I can open the previous one (named
>>>>>>>>>> >>>> 18EU_20100119_2319_Jon.rails) with
>>>>>>>>>> >>>> no problem.  Maybe you can retake your turn Jon?
>>>>>>>>>> >>>>
>>>>>>>>>> >>>> --
>>>>>>>>>> >>>> Chris
>>>>>>>>>> >>>>
>>>>>>>>>> >>>> Please consider the environment before printing this e-mail.
>
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