[iggy1]

Two ways i can think off hand (i havent realy worked with npcs before).

pawn Код:

#define MAX_BOTS        (15)
new BotIDS[MAX_BOTS] = {INVALID_PLAYER_ID, ...};//array to store npc ids

public OnPlayerConnect(playerid)
{
    static
        BotCount;
    if(IsPlayerNPC(playerid))
    {
        BotIDS[BotCount] = playerid;
        BotCount++;
    }
    return 1;
}

EDIT: The other way was very poor.