[EpicNinja]

pawn Код:

public OnPlayerPickUpPickup(playerid, pickupid)
{
    for(new i; i < MAX_HOUSES; i++)
    {
        if(pickupid == housepickup[i])
        {
            new str[120];
            format(str, sizeof(str),"You are standing on %s house",houseinfo[i][owner]);
            printf("%s",houseinfo[i][owner]);
        }
    }
    SendClientMessage(playerid,COLOR_GREEN,str);
    return 1;
}

Sending message to playerid inside loop sends him the message about "MAX_HOUSES" times.