Fix mana set to 0 when mob dies. Thanks Malcrom.

--HG--
branch : trunk

src/game/Creature.cpp

@@ -1484,6 +1484,9 @@ void Creature::setDeathState(DeathState s)
         if(m_formation && m_formation->getLeader() == this)
             m_formation->FormationReset(true);
 
+        SetHealth(0);
+        SetPower(getPowerType(),0);
+
         if ((canFly() || IsFlying()) && FallGround())
             return;
 
@@ -1564,7 +1567,6 @@ void Creature::Respawn(bool force)
         if (m_isDeadByDefault)
         {
             setDeathState(JUST_DIED);
-            SetHealth(0);
             i_motionMaster.Clear();
             clearUnitState(UNIT_STAT_ALL_STATE);
             LoadCreaturesAddon(true);
@@ -1608,7 +1610,6 @@ void Creature::ForcedDespawn(uint32 timeMSToDespawn)
         setDeathState(JUST_DIED);
 
     RemoveCorpse();
-    SetHealth(0);                                           // just for nice GM-mode view
 }
 
 bool Creature::IsImmunedToSpell(SpellEntry const* spellInfo)

src/game/Unit.cpp

@@ -658,7 +658,6 @@ uint32 Unit::DealDamage(Unit *pVictim, uint32 damage, CleanDamage const* cleanDa
         if (damage >= pVictim->GetHealth())
         {
             pVictim->setDeathState(JUST_DIED);
-            pVictim->SetHealth(0);
 
             CreatureInfo const* cInfo = ((Creature*)pVictim)->GetCreatureInfo();
             if (cInfo && cInfo->lootid)
@@ -11997,6 +11996,7 @@ void Unit::setDeathState(DeathState s)
         //without this when removing IncreaseMaxHealth aura player may stuck with 1 hp
         //do not why since in IncreaseMaxHealth currenthealth is checked
         SetHealth(0);
+        SetPower(getPowerType(),0);
     }
     else if (s == JUST_ALIVED)
         RemoveFlag (UNIT_FIELD_FLAGS, UNIT_FLAG_SKINNABLE); // clear skinnable for creature and player (at battleground)
@@ -14550,8 +14550,6 @@ void Unit::Kill(Unit *pVictim, bool durabilityLoss)
 
     //sLog.outError("%u kill %u", GetEntry(), pVictim->GetEntry());
 
-    pVictim->SetHealth(0);
-
     // find player: owner of controlled `this` or `this` itself maybe
     Player *player = GetCharmerOrOwnerPlayerOrPlayerItself();