Core/Spells: Fix spelleffect sanctuary

- No longer removes every attacker, but updates the visibility
  - Using that effect won't remove attackers that can still see through the stealth of the caster based on distance
- Ignores spells that were casted before or at the same time of that effect
- Trigger other needed spells when casting Shadowmeld

--HG--
branch : trunk

src/server/game/Spells/Spell.cpp

@@ -1138,6 +1138,9 @@ void Spell::DoAllEffectOnTarget(TargetInfo *target)
     if (unit->isAlive() != target->alive)
         return;
 
+    if (getState() == SPELL_STATE_DELAYED && !IsPositiveSpell(m_spellInfo->Id) && (getMSTime() - target->timeDelay) <= unit->m_lastSanctuaryTime)
+        return;                                             // No missinfo in that case
+
     // Get original caster (if exist) and calculate damage/healing from him data
     Unit *caster = m_originalCaster ? m_originalCaster : m_caster;
 
@@ -3414,7 +3417,10 @@ uint64 Spell::handle_delayed(uint64 t_offset)
         if (ihit->processed == false)
         {
             if (single_missile || ihit->timeDelay <= t_offset)
+            {
+                ihit->timeDelay = t_offset;
                 DoAllEffectOnTarget(&(*ihit));
+            }
             else if (next_time == 0 || ihit->timeDelay < next_time)
                 next_time = ihit->timeDelay;
         }

src/server/game/Spells/SpellEffects.cpp

@@ -5326,27 +5326,9 @@ void Spell::EffectSanctuary(SpellEffIndex /*effIndex*/)
     if (!unitTarget)
         return;
 
-    std::list<Unit*> targets;
-    Trinity::AnyUnfriendlyUnitInObjectRangeCheck u_check(unitTarget, unitTarget, m_caster->GetMap()->GetVisibilityRange());
-    Trinity::UnitListSearcher<Trinity::AnyUnfriendlyUnitInObjectRangeCheck> searcher(unitTarget, targets, u_check);
-    unitTarget->VisitNearbyObject(m_caster->GetMap()->GetVisibilityRange(), searcher);
-    for (std::list<Unit*>::iterator iter = targets.begin(); iter != targets.end(); ++iter)
-    {
-        if (!(*iter)->hasUnitState(UNIT_STAT_CASTING))
-            continue;
+    unitTarget->getHostileRefManager().UpdateVisibility();
+    unitTarget->m_lastSanctuaryTime = getMSTime();
 
-        for (uint32 i = CURRENT_FIRST_NON_MELEE_SPELL; i < CURRENT_MAX_SPELL; i++)
-        {
-            if ((*iter)->GetCurrentSpell(i)
-            && (*iter)->GetCurrentSpell(i)->m_targets.getUnitTargetGUID() == unitTarget->GetGUID())
-            {
-                (*iter)->InterruptSpell(CurrentSpellTypes(i), false);
-            }
-        }
-    }
-
-    unitTarget->CombatStop();
-    unitTarget->getHostileRefManager().deleteReferences();   // stop all fighting
     // Vanish allows to remove all threat and cast regular stealth so other spells can be used
     if (m_caster->GetTypeId() == TYPEID_PLAYER
         && m_spellInfo->SpellFamilyName == SPELLFAMILY_ROGUE