Some spells with special proc state, some talents like it

--HG--
branch : trunk

src/server/game/Spells/Spell.cpp

@@ -790,6 +790,50 @@ void Spell::prepareDataForTriggerSystem(AuraEffect const * /*triggeredByAura*/)
         to prevent chain proc of these spells
     */
 
+    switch (m_spellInfo->SpellFamilyName)
+    {
+        case SPELLFAMILY_MAGE:
+        {
+            // Blizzard - trigger as DOT
+            if (m_spellInfo->SpellFamilyFlags[0] & 0x80)
+            {
+                m_procAttacker = PROC_FLAG_ON_DO_PERIODIC;
+                m_procVictim   = PROC_FLAG_ON_TAKE_PERIODIC;
+            }
+            break;
+        }
+        case SPELLFAMILY_WARLOCK: 
+        {
+            // For Hellfire Effect / Rain of Fire - trigger as DOT
+            if (m_spellInfo->SpellFamilyFlags[0] & 0x60)
+            {
+                m_procAttacker = PROC_FLAG_ON_DO_PERIODIC;
+                m_procVictim   = PROC_FLAG_ON_TAKE_PERIODIC;
+            }
+            break;
+        }
+        case SPELLFAMILY_HUNTER:
+        {
+            // Volley - trigger as DOT
+            if (m_spellInfo->SpellFamilyFlags[0] & 0x0002000)
+            {
+                m_procAttacker = PROC_FLAG_ON_DO_PERIODIC;
+                m_procVictim   = PROC_FLAG_ON_TAKE_PERIODIC;
+            }
+            break;
+        }
+        case SPELLFAMILY_DRUID:
+        {
+            // Hurricane - trigger as DOT
+            if (m_spellInfo->SpellFamilyFlags[0] & 0x0400000)
+            {
+                m_procAttacker = PROC_FLAG_ON_DO_PERIODIC;
+                m_procVictim   = PROC_FLAG_ON_TAKE_PERIODIC;
+            }
+            break;
+        }
+    }
+
     // Ranged autorepeat attack is set as triggered spell - ignore it
     if (!(m_procAttacker & PROC_FLAG_SUCCESSFUL_RANGED_HIT))
     {