stock GivePlayerHealth(playerid, Vida[])
{
    new Float:health;
    GetPlayerHealth(playerid, health);
    new Operacion[3];
    if(Vida[0] >= 0 && Vida[0] <= 9)
    {
        Operacion[2] = floatstr(Vida);
        health += Operacion[2];
    }
    else if(Vida[0] == '-')
    {
        split( Vida, Operacion, '-' );
        Operacion[2] = floatstr(Operacion[1]);
        health -= Operacion[2];
    }
    else return 1;
    return SetPlayerHealth(playerid, health);
}