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question about global var in plugin

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Posted by Yeedoo   China  (12 posts)  [Biography] bio
Date Tue 13 Mar 2012 03:20 AM (UTC)  [ quote  ]
Message
I defined a global var(a table) in my plugin script.
But every time i restart the world, The plugin keep those global var even i clear the 'save_state'.
I dont want the plug keep those global var.
My question is
1.how to make a clean plugin global namespace every time the plugin or the world restart.
2.Where are those plugin global var be stored?
Thank you!
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Posted by Nick Gammon   Australia  (18,770 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Tue 13 Mar 2012 04:33 AM (UTC)  [ quote  ]
Message
Some example code would help here.

Don't put variables into the plugin (in the <variable> part) because that will overwrite any variables saved in the state file.

If you have "save_state" set then each world/plugin combination saves its plugin variables into a file in the "state" subdirectory. The file name is a combination of the plugin ID and the world ID. eg.


a7046428ba477ebb729250df-d2fa45d390d935d947cdc169-state.xml

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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Posted by Yeedoo   China  (12 posts)  [Biography] bio
Date Reply #2 on Tue 13 Mar 2012 07:29 AM (UTC)  [ quote  ]

Amended on Tue 13 Mar 2012 07:30 AM (UTC) by Yeedoo

Message
Nick Gammon said:

Some example code would help here.

Don't put variables into the plugin (in the <variable> part) because that will overwrite any variables saved in the state file.

If you have "save_state" set then each world/plugin combination saves its plugin variables into a file in the "state" subdirectory. The file name is a combination of the plugin ID and the world ID. eg.


a7046428ba477ebb729250df-d2fa45d390d935d947cdc169-state.xml



Thank you very much Nick.
I check the code, found that it load a serialized table into a global var from the state file every time the plug installed.
I have always thinked that the var stored in _G namespace could also be stored when i leaved the world.
and now i see, Only the var saved in the state file could be kept, Is that right?
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