AI/SmartScripts: Replace SMART_ACTION_INVOKER_CAST with SMART_ACTION_SELF_CAST in action 85. SMART_ACTION_INVOKER_CAST moves to 134.

Port From (https://github.com/TrinityCore/TrinityCore/commit/0aee79dfb8027e8b35472f5f61eb4f318528c951)

Source/Framework/Constants/SmartAIConst.cs

@@ -339,7 +339,7 @@ namespace Framework.Constants
         AddNpcFlag = 82,     // Flags
         RemoveNpcFlag = 83,     // Flags
         SimpleTalk = 84,     // Groupid, Can Be Used To Make Players Say Groupid, TextOver Event Is Not Triggered, Whisper Can Not Be Used (Target Units Will Say The Text)
-        InvokerCast = 85,     // Spellid, Castflags,   If Avaliable, Last Used Invoker Will Cast Spellid With Castflags On Targets
+        SelfCast = 85,     // Spellid, Castflags
         CrossCast = 86,     // Spellid, Castflags, Castertargettype, Castertarget Param1, Castertarget Param2, Castertarget Param3, ( + The Origonal Target Fields As Destination Target),   Castertargets Will Cast Spellid On All Targets (Use With Caution If Targeting Multiple * Multiple Units)
         CallRandomTimedActionlist = 87,     // Script9 Ids 1-9
         CallRandomRangeTimedActionlist = 88,     // Script9 Id Min, Max
@@ -388,7 +388,7 @@ namespace Framework.Constants
         SpawnSpawngroup = 131,    // Group ID, min secs, max secs, spawnflags
         DespawnSpawngroup = 132,    // Group ID, min secs, max secs, spawnflags
         RespawnBySpawnId = 133,    // spawnType, spawnId
-        // 134 : 3.3.5 reserved
+        InvokerCast = 134, // spellID, castFlags
         PlayCinematic = 135,    // reserved for future uses
         SetMovementSpeed = 136,    // movementType, speedInteger, speedFraction
         PlaySpellVisualKit = 137, // spellVisualKitId, kitType (unknown values, copypaste from packet dumps), duration

Source/Game/AI/SmartScripts/SmartAIManager.cs

@@ -1070,6 +1070,7 @@ namespace Game.AI
                     }
                     // no break
                     goto case SmartActions.AddAura;
+                case SmartActions.SelfCast:
                 case SmartActions.AddAura:
                     if (!IsSpellValid(e, e.Action.cast.spell))
                         return false;

Source/Game/AI/SmartScripts/SmartScript.cs

@@ -498,6 +498,39 @@ namespace Game.AI
                     }
                     break;
                 }
+                case SmartActions.SelfCast:
+                {
+                    if (targets.Empty())
+                        break;
+
+                    if (e.Action.cast.targetsLimit != 0)
+                        targets.RandomResize(e.Action.cast.targetsLimit);
+
+                    TriggerCastFlags triggerFlags = TriggerCastFlags.None;
+                    if (e.Action.cast.castFlags.HasAnyFlag((uint)SmartCastFlags.Triggered))
+                    {
+                        if (e.Action.cast.triggerFlags != 0)
+                            triggerFlags = (TriggerCastFlags)e.Action.cast.triggerFlags;
+                        else
+                            triggerFlags = TriggerCastFlags.FullMask;
+                    }
+
+                    foreach (WorldObject target in targets)
+                    {
+                        Unit uTarget = target.ToUnit();
+                        if (uTarget == null)
+                            continue;
+
+                        if (!e.Action.cast.castFlags.HasAnyFlag((uint)SmartCastFlags.AuraNotPresent) || !uTarget.HasAura(e.Action.cast.spell))
+                        {
+                            if (e.Action.cast.castFlags.HasAnyFlag((uint)SmartCastFlags.InterruptPrevious))
+                                uTarget.InterruptNonMeleeSpells(false);
+
+                            uTarget.CastSpell(uTarget, e.Action.cast.spell, new CastSpellExtraArgs(triggerFlags));
+                        }
+                    }
+                    break;
+                }
                 case SmartActions.InvokerCast:
                 {
                     Unit tempLastInvoker = GetLastInvoker(unit);
@@ -507,7 +540,7 @@ namespace Game.AI
                     if (targets.Empty())
                         break;
 
-                    if (e.Action.cast.targetsLimit > 0 && targets.Count > e.Action.cast.targetsLimit)
+                    if (e.Action.cast.targetsLimit != 0)
                         targets.RandomResize(e.Action.cast.targetsLimit);
 
                     foreach (var target in targets)