Getting numeric value from a variable name formatted into a string

Getting numeric value from a variable name formatted into a string - Printable Version

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+--- Thread: Getting numeric value from a variable name formatted into a string (/showthread.php?tid=630985)

Getting numeric value from a variable name formatted into a string - DTV - 21.03.2017

I'm not sure how else to word it, so I'll just show what I'm trying to do with an example.

pawn Код:

//Let's say I had a var called PlayerInfo[playerid][pAdmin] and it equals 2.

function(blah[]) //blah in this case would be "pAdmin"
{
    new string[128],stat[32];
    format(stat,sizeof(stat),"PlayerInfo[playerid][%s]",blah); //at this point the string should read as "PlayerInfo[playerid][pAdmin]"
    format(string,sizeof(string),"The value of this stat is %i.",stat); //here's where the issue is since stat is a string and not an integer 
    SendClientMessage(playerid,-1,string);
}

Basically in that example, what I'm trying to do is have is the stat string acted like I typed in the variable there.

pawn Код:

format(string,sizeof(string),"The value of this stat is %i.",PlayerInfo[playerid][pAdmin]);

I'm not sure if I'm just overthinking this or not, but is there a solution to this?

Re: Getting numeric value from a variable name formatted into a string - AndySedeyn - 21.03.2017

You're overthinking it:

PHP код:



#include <a_samp>


enum E_PLAYER_DATA {

    

    pAdmin

};

new PlayerInfo[MAX_PLAYERS][E_PLAYER_DATA];


main() {


    new

        playerid = 10

    ;


    printf("[BEFORE] Player[%d][pAdmin] == %d", playerid, PlayerInfo[playerid][pAdmin]);

    Increase_Data(playerid, pAdmin);

    printf("[AFTER] Player[%d][pAdmin] == %d", playerid, PlayerInfo[playerid][pAdmin]);

}


Increase_Data(playerid, E_PLAYER_DATA:enumerator) {


    PlayerInfo[playerid][enumerator] ++;

    return true;

}

Re: Getting numeric value from a variable name formatted into a string - DTV - 21.03.2017

I don't think that's what I'm after, let me show a clearer example that I thought of.

pawn Код:

function(blah[]) //still pAdmin
{
    new string[128],stat[32];
    format(stat,sizeof(stat),"PlayerInfo[playerid][%s]",blah);
    format(string,sizeof(string),"The value of %s is %i.",blah,stat);
    SendClientMessage(playerid,-1,string);
    return 1;
}

I don't want to do anything to change the value, I just want the script to think I typed "PlayerInfo[playerid][pAdmin]" rather than "stat".

Re: Getting numeric value from a variable name formatted into a string - AndySedeyn - 21.03.2017

You can stringify it by placing a hashtag in front of it (utilises the preprocessor):

PHP код:



#include <a_samp>


enum E_PLAYER_DATA {

    

    pAdmin,

    pLevel

};

new PlayerInfo[MAX_PLAYERS][E_PLAYER_DATA];


main() {


    new

        playerid = 10

    ;


    Display_Data(playerid, pAdmin, #pAdmin);

    Display_Data(playerid, pLevel, #pLevel);

}


Display_Data(playerid, E_PLAYER_DATA:enumerator, stringified[]) {


    new string[128];

    format(string,sizeof(string),"The value of %s is %i.", stringified, PlayerInfo[playerid][enumerator]);

    print(string);

    return true;

}

prints:

Код:

[04:57:52] The value of pAdmin is 0.
[04:57:52] The value of pLevel is 0.

Using #enumerator inside the function doesn't seem to work because it stringifies what you put after it, hence why I do it in the function call. But at that point, you could just do "pLevel" and stuff.

That's what I understand from your examples.

Re: Getting numeric value from a variable name formatted into a string - DTV - 21.03.2017

Assuming stringify means turning something into a string, how would you de-stringify a string into plain text to the script?

Re: Getting numeric value from a variable name formatted into a string - AndySedeyn - 21.03.2017

Quote:

Originally Posted by DTV

Assuming stringify means turning something into a string, how would you de-stringify a string into plain text to the script?

You can't, turning it into plain text would make it a variable name, function,... That's why I added the second parameter to that function.