[TzAkS.]

Код:

new IsAtDM[MAX_PLAYERS];

To OnPlayerConnect

Код:

IsAtDM[playerid] = 0;

At command

Код:

if(IsAtDM[playerid] == 1) return SendClientMessage(playerid, -1, "You need to exit from dm area first");

And

Код:

IsAtDM[playerid] = 1;

At exitdm

Код:

IsAtDM[playerid] = 0;