Core/Spells: Fixed logic related to movement while channeling

src/server/game/Entities/Unit/Unit.cpp

@@ -3001,16 +3001,19 @@ int32 Unit::GetCurrentSpellCastTime(uint32 spell_id) const
     return 0;
 }
 
-bool Unit::CanMoveDuringChannel() const
+bool Unit::IsMovementPreventedByCasting() const
 {
+    // can always move when not casting
+    if (!HasUnitState(UNIT_STATE_CASTING))
+        return false;
+
+    // channeled spells during channel stage (after the initial cast timer) allow movement with a specific spell attribute
     if (Spell* spell = m_currentSpells[CURRENT_CHANNELED_SPELL])
-    {
         if (spell->getState() != SPELL_STATE_FINISHED && spell->IsChannelActive())
-            if (!spell->GetSpellInfo()->IsMoveAllowedChannel())
+            if (spell->GetSpellInfo()->IsMoveAllowedChannel())
                 return false;
-    }
-
 
+    // prohibit movement for all other spell casts
     return true;
 }