checking offline char_id

[Lord Ganja 5]

I'm having an error because of this script. How do I skip the current loop when ".@char_id[.@i]" is offline?

 

.@nb = query_sql("SELECT `char_id` FROM `char_reg_num_db` WHERE `key`='hunter' && `value`='1'", .@char_id );			for( .@i = 0; .@i < .@nb; .@i++ ) {				dispbottom "(From Hunter Academy) : "+strcharinfo(0)+" just got online.",0xFFFF00,.@char_id[.@i];			}

 

Error:

[Error]: buildin_dispbottom: Player with char id '150018' is not found.

 

Thanks in advance.

[GmOcean 92]

What you need to do is make sure they are online such as this:

.@na = query_sql("SELECT `char_id`,`online` FROM `char`", .@c_id,.@online);.@nb = query_sql("SELECT `char_id` FROM `char_reg_num_db` WHERE `key`='hunter' && `value`='1'", .@char_id );			for( .@i = 0; .@i < .@nb; .@i++ ) { //Loops through second sql_query                            for( .@a = 0; .@a < .@na; .@a++ ) { //Loops through first sql_query                                if (.@c_id[.@a] == .@char_id[.@i] && .@online[.@a]) { //Compares Character IDs, and then checks if player is online.				    // If player is online, then we send the information out. Else, it should skip ahead to the next player who is online.                                    dispbottom "(From Hunter Academy) : "+strcharinfo(0)+" just got online.",0xFFFF00,.@char_id[.@i];			        }                            }                        }

 

Granted there is a cleaner way to do this using a better sql_query, and/or using the command " while() " instead of " for() ".

However, both should get the job done, and depending on the player base, the amount of resources saved is minimal at best.

 

Edit: Haven't tested, but based on scripts I've written in the past this should work, barring any syntax errors.

Edited September 15, 2015 by GmOcean

[Angelmelody 221]

you can use charid2rid CMD to check whether the player is online or not
  if(charid2rid(.@char_id[.@i]))dispbottom "....";
 

[Lord Ganja 5]

Thank you @@GmOcean and @@Angelmelody