AlliedModders - [Solved] How to pass tagged variable to other plugins

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- - Solved How to pass tagged variable to other plugins (https://forums.alliedmods.net/showthread.php?t=332138)

How to pass tagged variable to other plugins

I have the following codes in plugin A:

PHP Code:


		
			
enum PlayerClass

{



    SDU, // Human Type

    Soldier,

    Heavy,

    Supporter,

    Leader,



    GVirusMonster, // Zombie Type

    Nemesis,

    TVirusMonster,

    Assassin,

    Venom,

    Vampire,

    Speeder,

    Horde,

    Hunter



};



...



new PlayerClass: PlayerType[ MAX_PLAYERS + 1 ];



...



public _GetPlayerType( plugin , params )

{

    new id = get_param( 1 );



    if( ! is_user_alive( id ) )

        return;



    set_param_byref( 2 , _:PlayerType[ id ] );

}

In plugin B, i try to retrieve the value of PlayerType[ id ]

PHP Code:


		
			


enum _:PlayerClass2

{



    SDU, // Human Type

    Soldier,

    Heavy,

    Supporter,

    Leader,



    GVirusMonster, // Zombie Type

    Nemesis,

    TVirusMonster,

    Assassin,

    Venom,

    Vampire,

    Speeder,

    Horde,

    Hunter



}



static player_type



GetPlayerType(id, player_type);

.inc file

PHP Code:


		
			


native GetPlayerType( id , type );

but player_type is always 0 and i cannot get the correct value. What are the recommended ways to exchange variables across plugins?

Re: How to pass tagged variable to other plugins

Try this one:

PHP Code:


		
			
enum PlayerClass

{



    SDU, // Human Type

    Soldier,

    Heavy,

    Supporter,

    Leader,



    GVirusMonster, // Zombie Type

    Nemesis,

    TVirusMonster,

    Assassin,

    Venom,

    Vampire,

    Speeder,

    Horde,

    Hunter



};



public _GetPlayerType( plugin , params )

{

    new id = get_param( 1 );



    if( ! is_user_alive( id ) )

        return -1;



    return PlayerType[ id ];

} 



native GetPlayerType( id , PlayerClass:type);

Re: How to pass tagged variable to other plugins

Code:

native GetPlayerType( id , type );

:arrow:

Code:

native GetPlayerType( id , &type );

Re: How to pass tagged variable to other plugins

Quote:

Originally Posted by Natsheh (Post 2745071)

Code:

native GetPlayerType( id , type );

:arrow:

Code:

native GetPlayerType( id , &type );

It is fixed, thank you.

Does it mean than by stripping the tag, the memory address of the PlayerType[ id ] will be passed as parameter instead?

Re: How to pass tagged variable to other plugins

Quote:

Originally Posted by Natsheh (Post 2745071)

Code:

native GetPlayerType( id , type );

:arrow:

Code:

native GetPlayerType( id , &type );

For other plugins if GetPlayerType() is also needed to be called, do I need to enum PlayerClass3, 4, ... for each of the plugin?

Re: How to pass tagged variable to other plugins

Tags doesn't actually do anything except makes the compiler capable of telling you that you might have used a variable in the wrong context. After compilation they're basically gone.
However, if you end up using a tag and enforce it's usage in other plugins I would recommend putting them in the API plugin as well.

The enum is basically useless in your API plugin if you're not using them individually in any way. It should be in the include which is used for the secondary plugin, along with the native declaration.

I strongly suggest using the first example of these.

Code:

// API Plugin
public plugin_natives()
    register_native("ExampleNative", "nativeExample");

public nativeExample(plugin, params)
{
    return 999;
}



// Secondary Plugin
native ExampleNative();

Data ends up here
     |
     V
new data = ExampleNative();

Code:

// API Plugin
public plugin_natives()
    register_native("ExampleNative", "nativeExample");

public nativeExample(plugin, params)
{
    set_param_byref(1, 999);
}



// Secondary Plugin
native ExampleNative(&data);

Data ends up here
               |
               V
ExampleNative(data);

If you're using tagged byref. Look how CsTeams based natives are declared in the include for guidance:

Code:

native CsTeams:cs_get_user_team(index, &{CsInternalModel,_}:model = CS_DONTCHANGE);

Example of tag mismatching still working fine

Re: How to pass tagged variable to other plugins

Quote:

Originally Posted by davidto1995 (Post 2745075)

It is fixed, thank you.

Does it mean than by stripping the tag, the memory address of the PlayerType[ id ] will be passed as parameter instead?

still no, but it will be retrieved as parameter.

Re: How to pass tagged variable to other plugins

Thank you guys. Clear my minds now.