[Eth]

the variable should be PlayerInfo[playerid][Lighter] = 10; at first
and each time he use /smoke do:

pawn Код:

PlayerInfo[playerid][Lighter] --;

and on your command /smoke put:

pawn Код:

if(PlayerInfo[playerid][Lighter] == 0) return SendClientMessage(playerid,-1,"You have to buy a lighter again to smoke more!");

put it at the start of the command after the {