void main()
{
    int nUser = GetUserDefinedEventNumber();

    if(nUser == EVENT_HEARTBEAT ) //HEARTBEAT
    {
            int iDamageRecieved = GetLocalInt(OBJECT_SELF, "TROLL_DAMAGE_RECIEVED");
            int iMax = GetMaxHitPoints();
            int iCurrent = GetCurrentHitPoints();
            // This fires before the rest of the On Heartbeat file does
            if(iDamageRecieved < iMax)
            {
                // Heal self as long as we have less current hit points then
                // max damage - recieved.
                if(iCurrent < (iMax - iDamageRecieved))
                {
                    // Regenerate
                    int iRegenamount = iMax - iDamageRecieved;
                    if(iRegenamount > 5) iRegenamount = 5;
                    // Heal
                    effect eRegerate = EffectHeal(iRegenamount);
                    ApplyEffectToObject(DURATION_TYPE_INSTANT, eRegerate, OBJECT_SELF);
                }
            }
            // Never exit.
    }
    else if(nUser == EVENT_DAMAGED) // DAMAGED
    {
            // Add acid and fire damage to damage recieved
            int iDamageRecieved = GetLocalInt(OBJECT_SELF, "TROLL_DAMAGE_RECIEVED");
            // Acid + fire
            int iAcid = GetDamageDealtByType(DAMAGE_TYPE_ACID);
            int iFire = GetDamageDealtByType(DAMAGE_TYPE_FIRE);

            // Add it to it
            iDamageRecieved = iDamageRecieved + (iAcid < 0 ? 0 : iAcid) + (iFire < 0 ? 0 : iFire);
            // Set it
            SetLocalInt(OBJECT_SELF, "TROLL_DAMAGE_RECIEVED", iDamageRecieved);
    }
    else if(nUser == 1007) // DEATH  - do not use for critical code, does not fire reliably all the time
    {
            int iDamageRecieved = GetLocalInt(OBJECT_SELF, "TROLL_DAMAGE_RECIEVED");
            int iAcid = GetDamageDealtByType(DAMAGE_TYPE_ACID);
            int iFire = GetDamageDealtByType(DAMAGE_TYPE_FIRE);

            iDamageRecieved = iDamageRecieved + (iAcid < 0 ? 0 : iAcid) + (iFire < 0 ? 0 : iFire);
            SetLocalInt(OBJECT_SELF, "TROLL_DAMAGE_RECIEVED", iDamageRecieved);

            int iMax = GetMaxHitPoints();
            if(iDamageRecieved < iMax)
            {
                effect eRaise = EffectResurrection();
                effect eHP = EffectHeal(iMax - iDamageRecieved);
                DelayCommand(12.0, ApplyEffectToObject(DURATION_TYPE_INSTANT, eRaise, OBJECT_SELF));
                DelayCommand(12.1, ApplyEffectToObject(DURATION_TYPE_INSTANT, eHP, OBJECT_SELF));
            }
            else
             SetIsDestroyable(TRUE, FALSE);
    }
}