[Universal]

pawn Код:

// Change timerid variable into array
// Find the new timerid; and change it into this:
new timerid[MAX_PLAYERS];

// Its SetTimerEx not SetTimer!
timerid[playerid] = SetTimerEx("Health", 1000, true, "d", playerid);

// In /godoff
KillTimer(timerid[playerid]); 

// This'll be called each second
forward Health(playerid);
public Health(playerid)
{
    // Checking if player's connected
    if(!IsPlayerConnected(playerid))
        KillTimer(timerid[playerid]);
    else
        SetPlayerHealth(playerid, 100.0);
    return 1;
}