publicVariable: Difference between revisions

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<dd class="notedate">Posted 2007</dd>
<dd class="notedate">Posted 2007
<dd class="note">This command broadcasts a variable to all clients, but as soon as you change the variable again, you have to use '''publicVariable''' again, as it does not automatically synchronise it.
<dd class="note">This command broadcasts a variable to all clients, but as soon as you change the variable again, you have to use '''publicVariable''' again, as it does not automatically synchronise it.
</dd>


<dd class="notedate">Posted on 2 Feb, 2008</dd>
 
<dd class="notedate">Posted on 2 Feb, 2008
<dt class="note">[[User:Dr_Eyeball|Dr_Eyeball]]<dd class="note">
<dt class="note">[[User:Dr_Eyeball|Dr_Eyeball]]<dd class="note">
When initialising a public variable to handle '''JIP''', you will usually first want to check if the public variable has already been (broadcast, received and) set locally. Otherwise you may inadvertantly overwrite the broadcast value with your default value.<br>
When initialising a public variable to handle '''JIP''', you will usually first want to check if the public variable has already been (broadcast, received and) set locally. Otherwise you may inadvertantly overwrite the broadcast value with your default value.<br>
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  // else public variable has already been set due to a public variable broadcast.
  // else public variable has already been set due to a public variable broadcast.
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<dd class="notedate">Posted on 14 July, 2011</dd>
<dd class="notedate">Posted on 14 July, 2011
<dt class="note">[[User:kju|kju]]<dd class="note">
<dt class="note">[[User:kju|kju]]<dd class="note">
To make Dr_Eyeball's note even more clear:
To make Dr_Eyeball's note even more clear:
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It says literally: "Only initialize value it has not yet been set. And in a JIP this may already been the cause due to publicVariable use".
It says literally: "Only initialize value it has not yet been set. And in a JIP this may already been the cause due to publicVariable use".
</dd>


<dd class="notedate">Posted on 12 April, 2008</dd>
 
<dd class="notedate">Posted on 12 April, 2008
<dt class="note">[[User:Icemotoboy|Icemotoboy]]<dd class="note">
<dt class="note">[[User:Icemotoboy|Icemotoboy]]<dd class="note">
Be sure to place your variable name in quotation marks.  This may sound awfully simple, but many times I have forgotten to do this, and it has resulted in no end of headaches for me.
Be sure to place your variable name in quotation marks.  This may sound awfully simple, but many times I have forgotten to do this, and it has resulted in no end of headaches for me.
</dd>


<dd class="notedate">Posted on 13 April, 2008</dd>
 
<dd class="notedate">Posted on 13 April, 2008
<dt class="note">[[User:corsair|=FSI=Corsair]]<dd class="note">
<dt class="note">[[User:corsair|=FSI=Corsair]]<dd class="note">
Var type "side" cannot be sent on 1.08, it will work in 1.11, 1.09 not tested
Var type "side" cannot be sent on 1.08, it will work in 1.11, 1.09 not tested
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Revision as of 13:37, 21 October 2011

Hover & click on the images for description

Description

Description:
Broadcast variable value to all computers. Only type Number is supported in version 1.33 and before. Following Types are supported since version 1.34: Following Types are supported since version ArmA v1.00: Since version ArmA v1.09: Any value can be transferred, including The only limitation is you cannot transfer references to entities which are local, like scripts, displays, or local objects.
Multiplayer:
The message is sent consequently and reliably to all clients. Using publicVariable too frequently in a given period of time can cause other parts of the game to experience bandwidth problems.
Groups:
Uncategorised

Syntax

Syntax:
publicVariable varName
Parameters:
varName: String
Return Value:
Nothing

Examples

Example 1:
publicVariable "CTFscoreOne"

Additional Information

See also:
MP editing guideaddPublicVariableEventHandler

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note

Notes

Posted 2007
This command broadcasts a variable to all clients, but as soon as you change the variable again, you have to use publicVariable again, as it does not automatically synchronise it.
Posted on 2 Feb, 2008
Dr_Eyeball
When initialising a public variable to handle JIP, you will usually first want to check if the public variable has already been (broadcast, received and) set locally. Otherwise you may inadvertantly overwrite the broadcast value with your default value.

To perform this check, use code similar to the following to first check that the variable is nil: if (isNil "PV_abc") then { // set the nil variable with a default value for server and both JIP & 'join at mission start' PV_abc = [7, 8, 9]; }; // else public variable has already been set due to a public variable broadcast.
Posted on 14 July, 2011
kju
To make Dr_Eyeball's note even more clear: For JIP players pV'ed variables are received and set BEFORE the init.sqf. So to avoid the received variables getting overwritten by variable initialization normally done in the init.sqf, you HAVE TO to use the 'if (isNil "PV_abc")' pattern. It says literally: "Only initialize value it has not yet been set. And in a JIP this may already been the cause due to publicVariable use".
Posted on 12 April, 2008
Icemotoboy
Be sure to place your variable name in quotation marks. This may sound awfully simple, but many times I have forgotten to do this, and it has resulted in no end of headaches for me.
Posted on 13 April, 2008
=FSI=Corsair
Var type "side" cannot be sent on 1.08, it will work in 1.11, 1.09 not tested

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