[Tamy]

Код:

new name[32], npcname[32], f=-1;
for(new i=0; i<MAX_PLAYERS; i++)
{
    GetPlayerName(i, name, 32);
    if(!strcmp(name, npcname, false) && strlen(name))
    {
        print("NPC IS ONLINE");
        f=1;
     }
}
if(f==-1) print("NPC IS OFFLINE");

Fill the "npcname" variable with your NPC name.