Finding Next Available Number - Printable Version

Finding Next Available Number - Printable Version

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+--- Thread: Finding Next Available Number (/showthread.php?tid=425427)

Finding Next Available Number - nmader - 25.03.2013

Hello again guys,

I am working on a dynamic vehicle saving script and have come across somewhat of a situation, In order for the vehicles (and their data) not to get mixed up with another's I need to give it a car number within the .ini file. However, in order to prevent over-lapping data I need to get the next available (not taken by another vehicle's file) number or ID for the vehicle.

I cannot seem to find a function for this so any help will be greatly appreciated!

Thanks,
Nmader

Re: Finding Next Available Number - Scenario - 25.03.2013

Something like this, maybe?

pawn Код:

for(new i = 0; i < MAX_SAVED_VEHICLES; i++)
{
    format(string, sizeof(string), "%d.INI", i);
    if(!fexist(string)) return i;
}

EDIT: Made a few efficiency adjustments.

Re: Finding Next Available Number - nmader - 25.03.2013

I shall test it within the script, looking at the code you provided it does seem to make a little sense to me. Your time was also very efficient, thanks!

Re: Finding Next Available Number - Scenario - 25.03.2013

You're most welcome!

Basically, the code will loop through the maximum amount of vehicles that the server will save (which can be defined by "MAX_SAVED_VEHICLES"). It formats a quick string so it can take each ID and make a string which you can use to check if the file exists. If the file exists [with the specified ID], it will continue with the loop. If the file [with the specified ID] doesn't exist, it will stop the loop and return the ID that's open.

Re: Finding Next Available Number - nmader - 25.03.2013

Quote:

Originally Posted by RealCop228

You're most welcome!

Basically, the code will loop through the maximum amount of vehicles that the server will save (which can be defined by "MAX_SAVED_VEHICLES"). It formats a quick string so it can take each ID and make a string which you can use to check if the file exists. If the file exists [with the specified ID], it will continue with the loop. If the file [with the specified ID] doesn't exist, it will stop the loop and return the ID that's open.

Thanks for the fantastic explanation, looking at the code once more it seems to make a lot of sense, a lot more than I would have guessed!

Re: Finding Next Available Number - park4bmx - 25.03.2013

the code is good but there are function that are not needed, which simply means more time to process because of the checks.

pawn Код:

stock GetFreeID()
{
      new file[12];
      for(new ID = 0; ID < MAX_SAVED_VEHICLES; ID++)
      {
            format(file, file(string), "%d.INI", ID);
            if(!fexist(file)) return ID;
      }
}

Re: Finding Next Available Number - Scenario - 25.03.2013

Quote:

Originally Posted by park4bmx

the code is good but there are function that are not needed, which simply means more time to process because of the checks.

pawn Код:

stock GetFreeID()
{
      new file[12];
      for(new ID = 0; ID < MAX_SAVED_VEHICLES; ID++)
      {
            format(file, file(string), "%d.INI", ID);
            if(!fexist(file)) return ID;
      }
}

I thought I edited the post, but I must not of hit the submit button before going to my other tab. :P