Delete flag from DB?

[DeCeaseD]

Is there any way to totally remove a flag from a DBNPC? Atm, i'm using this.("test_"@ whatever) = NULL; but that just sets the flag to 0. I also tried using this.("test_"@ whatever).delete(); and this.("test_"@ whatever).remove(); but neither of them work. Can anyone help me out here?

[fowlplay4]

You can un-assign/destroy variables with:

this.("test_"@ whatever) = "";

[WhiteDragon]

Just remember that everything in GS2 is a string, and that NULL is a lie.

[cbk1994]

There is also obj.clearEmptyVars(); which will delete 0 or NULL values from the flags. It doesn't really matter, though, since they're removed on server restart and don't interfere with the operation of the DB anyway.

[DustyPorViva]

null = 0 != ""

However, sometimes it does, sometimes it doesn't...

[cbk1994]

Originally Posted by DustyPorViva

null = 0 != ""

However, sometimes it does, sometimes it doesn't...

Nothing random about it. null shows up as 0. Using an empty string ("") causes it to not show up.

Either way it doesn't matter though.

[DustyPorViva]

Originally Posted by cbk1994

Nothing random about it. null shows up as 0. Using an empty string ("") causes it to not show up.

Either way it doesn't matter though.

Graal sometimes considers 0 as reason to clear the variable, but will render it as 0, was my point.

[DeCeaseD]

Yeah, it seems "" totally clears the variable. But yeah, usually when you set a client or clientr flag to NULL, Graal will recognize the 0 as nothing and just clear it. I figured the same applied to variables in NPC's, but I guess not. -.o Thanks anyways guys.

[coreys]

Originally Posted by DustyPorViva

Graal sometimes considers 0 as reason to clear the variable, but will render it as 0, was my point.

Whenever I've made little clock systems to show the time using showimg with text, I always have to but a bugfix in my time system that changes 0 to "0".

[DeCeaseD]

Okay, so I figured instead of making a new thread, I would just post this issue here. I'm now having trouble checking for a clientr flag while using a for loop in the check. I'm setting temp.i using a for loop, than trying to check a clientr flag using temp.i, atm i'm trying clientr.backpack_size(@ i+1), but it keeps returning as null when it should return as either "Small" or "Medium" Can anyone tell me how to fix this? Here's the code:

PHP Code:

function displayBackPacks()
{
  temp.mXY = {mousescreenx, mousescreeny};
  for ( temp.i = 0; temp.i < clientr.backpack_slots; temp.i++ ) {
  
    temp.displayXY = { screenwidth - 240 + (58 * i), screenheight - 50 };
    with ( findImg( 200 + i ) ) {
    
      image = "necro_gui_iconbox.gif";
      mode = 1;
      layer = 4;
      red = green = blue = 1;
      alpha = .65;
      x = displayXY[0];
      y = displayXY[1];
    }
    if ( clientr.backpack_size(@ i+1 ) != nil ) {
      with ( findImg( 205 + i ) ) {
    
        image = "necro_gui_backpack1_1.gif";
        mode = 1;
        layer = 5;
        red = green = blue = 1;
        alpha = .65;
        x = displayXY[0] - 3;
        y = displayXY[1] - 5;
      }
    }
    if ( mXY[0] in |displayXY[0], displayXY[0] + 34| &&
         mXY[1] in |displayXY[1], displayXY[1] + 34| ) {
      
      temp.sizeCheck = clientr.backpack_size(@ i+1);
      player.chat = sizeCheck @" Backpack #"@  i+1;
    }
  }
} 


[fowlplay4]

Are you trying to use an array?

These code snippets should help..

PHP Code:

// Declaring an array
clientr.backpack_size = {
  "Small", "medium", "large", "endless"
};

// Picking one element from an array
temp.bagsize = clientr.backpack_size[2]; // bagsize = "large"

// Basic For Loop example
for (temp.i = 0; temp.i < clientr.backpack_size.size(); temp.i++) {
  temp.bagsize = clientr.backpack_size[temp.i];
  echo(temp.bagsize);
}

// For-each example
for (temp.bagsize: clientr.backpack_size) {
  echo(temp.bagsize);
} 


If you're storing like so.. clientr.backpack_size1, clientr.backpack_size2, etc.

You can use makevar or through the dot notation way.

temp.bagsize = makevar("clientr.backpack_size" @ i + 1);
temp.bagsize = clientr.("backpack_size" @ i + 1);

[DeCeaseD]

No, i'm actually not using an array, i'm simply doing this:

clientr.backpack_slots=# (At the moment, I have it set to 2 in my chars attributes).

Using the slot flag, i'm checking for which slot the player is interacting with.

Than I'm doing clientr.backpack_size#=size;.. which in my case I have clientr.backpack_size1=Small, and clientr.backpack_size2=Medium.

What i'm trying to do is set temp.i to clientr.backpack_slots (Which is working because i'm displaying stuff using that flag.) than, i'm trying to display backpacks according to whether or not clientr.backpack_size is NULL or not.

[salesman]

try

PHP Code:

clientr.(@ "backpack_size" @ i + 1); 


[DeCeaseD]

Originally Posted by salesman

try

PHP Code:

clientr.(@ "backpack_size" @ i + 1); 


Yay, Sales you rule! Thanks for the attempt to help Jerret.

[fowlplay4]

Originally Posted by DeCeaseD

Yay, Sales you rule! Thanks for the attempt to help Jerret.

I had edited that into my post around the time of your reply, but you're welcome.