*Fix Focused Magic.

*Make Presence of Mind no longer trigger Arcane Power.
*Apply correct calculation for SPELLMOD_PROC_PER_MINUTE.
*Fix divine shield positivity.

--HG--
branch : trunk

src/game/Player.cpp

@@ -7289,7 +7289,7 @@ void Player::CastItemCombatSpell(Item *item,Unit* Target, WeaponAttackType attTy
         if(spellData.SpellPPMRate)
         {
             uint32 WeaponSpeed = GetAttackTime(attType);
-            chance = GetPPMProcChance(WeaponSpeed, spellData.SpellPPMRate);
+            chance = GetPPMProcChance(WeaponSpeed, spellData.SpellPPMRate, spellInfo);
         }
         else if(chance > 100.0f)
         {

src/game/Spell.cpp

@@ -2252,9 +2252,9 @@ void Spell::cast(bool skipCheck)
 
     if(m_spellInfo->SpellFamilyName)
     {
-        if (m_spellInfo->excludeCasterAuraSpell)
+        if (m_spellInfo->excludeCasterAuraSpell && !IsPositiveSpell(m_spellInfo->excludeCasterAuraSpell))
             m_preCastSpell = m_spellInfo->excludeCasterAuraSpell;
-        else if (m_spellInfo->excludeTargetAuraSpell)
+        else if (m_spellInfo->excludeTargetAuraSpell && !IsPositiveSpell(m_spellInfo->excludeTargetAuraSpell))
             m_preCastSpell = m_spellInfo->excludeTargetAuraSpell;
     }
     switch (m_spellInfo->SpellFamilyName)

src/game/SpellAuras.cpp

@@ -2078,6 +2078,14 @@ void Aura::HandleAuraDummy(bool apply, bool Real)
                         caster->CastSpell(m_target, GetModifier()->m_amount, true);
                     return;
                 }
+                // Focused Magic
+                if(m_spellProto->Id == 54646)
+                {
+                    // only on remove by crit
+                    if(caster && m_removeMode == AURA_REMOVE_BY_DEFAULT && GetAuraDuration()>0)
+                        caster->CastSpell(caster,54648, true);
+                    return;
+                }
                 break;
         }
     }

src/game/SpellMgr.cpp

@@ -534,7 +534,7 @@ bool IsPositiveEffect(uint32 spellId, uint32 effIndex, bool deep)
 
     switch(spellproto->Mechanic)
     {
-        case MECHANIC_SHIELD:
+        case MECHANIC_IMMUNE_SHIELD:
             return true;
         default:
             break;

src/game/Unit.cpp

@@ -5620,7 +5620,7 @@ bool Unit::HandleDummyAuraProc(Unit *pVictim, uint32 damage, Aura* triggeredByAu
                 return true;
             }
             // Seed of Corruption (Mobs cast) - no die req
-            if (dummySpell->SpellFamilyFlags == 0x00LL && dummySpell->SpellIconID == 1932)
+            if (dummySpell->SpellFamilyFlags.IsEqual(0,0,0) && dummySpell->SpellIconID == 1932)
             {
                 Modifier* mod = triggeredByAura->GetModifier();
                 // if damage is more than need deal finish spell
@@ -9820,10 +9820,15 @@ float Unit::GetWeaponProcChance() const
     return 0;
 }
 
-float Unit::GetPPMProcChance(uint32 WeaponSpeed, float PPM) const
+float Unit::GetPPMProcChance(uint32 WeaponSpeed, float PPM, const SpellEntry * spellProto) const
 {
     // proc per minute chance calculation
     if (PPM <= 0) return 0.0f;
+    // Apply chance modifer aura
+    if (spellProto)
+        if(Player* modOwner = GetSpellModOwner())
+            modOwner->ApplySpellMod(spellProto->Id,SPELLMOD_PROC_PER_MINUTE,PPM);
+
     uint32 result = uint32((WeaponSpeed * PPM) / 600.0f);   // result is chance in percents (probability = Speed_in_sec * (PPM / 60))
     return result;
 }
@@ -12694,13 +12699,12 @@ bool Unit::IsTriggeredAtSpellProcEvent(Unit *pVictim, Aura* aura, SpellEntry con
     if(!isVictim && spellProcEvent && spellProcEvent->ppmRate != 0)
     {
         uint32 WeaponSpeed = GetAttackTime(attType);
-        chance = GetPPMProcChance(WeaponSpeed, spellProcEvent->ppmRate);
+        chance = GetPPMProcChance(WeaponSpeed, spellProcEvent->ppmRate, spellProto);
     }
     // Apply chance modifer aura
     if(Player* modOwner = GetSpellModOwner())
     {
         modOwner->ApplySpellMod(spellProto->Id,SPELLMOD_CHANCE_OF_SUCCESS,chance);
-        modOwner->ApplySpellMod(spellProto->Id,SPELLMOD_PROC_PER_MINUTE,chance);
     }
 
     return roll_chance_f(chance);

src/game/Unit.h

@@ -1057,7 +1057,7 @@ class TRINITY_DLL_SPEC Unit : public WorldObject
         uint32 GetDefenseSkillValue(Unit const* target = NULL) const;
         uint32 GetWeaponSkillValue(WeaponAttackType attType, Unit const* target = NULL) const;
         float GetWeaponProcChance() const;
-        float GetPPMProcChance(uint32 WeaponSpeed, float PPM) const;
+        float GetPPMProcChance(uint32 WeaponSpeed, float PPM,  const SpellEntry * spellProto) const;
 
         MeleeHitOutcome RollMeleeOutcomeAgainst (const Unit *pVictim, WeaponAttackType attType) const;
         MeleeHitOutcome RollMeleeOutcomeAgainst (const Unit *pVictim, WeaponAttackType attType, int32 crit_chance, int32 miss_chance, int32 dodge_chance, int32 parry_chance, int32 block_chance) const;