Core/Players: Changed flight masters to suppress positive transforms/shapeshifts instead of preventing starting flight

Source/Game/Entities/Player/Player.cs

@@ -6694,13 +6694,12 @@ namespace Game.Entities
             if (npc != null)
             {
                 // not let cheating with start flight mounted
-                if (IsMounted())
-                {
-                    GetSession().SendActivateTaxiReply(ActivateTaxiReply.PlayerAlreadyMounted);
-                    return false;
-                }
+                RemoveAurasByType(AuraType.Mounted);
 
-                if (IsInDisallowedMountForm())
+                if (GetDisplayId() != GetNativeDisplayId())
+                    RestoreDisplayId(true);
+
+                if (IsDisallowedMountForm(getTransForm(), FORM_NONE, GetDisplayId()))
                 {
                     GetSession().SendActivateTaxiReply(ActivateTaxiReply.PlayerShapeshifted);
                     return false;
@@ -6718,8 +6717,8 @@ namespace Game.Entities
             {
                 RemoveAurasByType(AuraType.Mounted);
 
-                if (IsInDisallowedMountForm())
-                    RemoveAurasByType(AuraType.ModShapeshift);
+                if (GetDisplayId() != GetNativeDisplayId())
+                    RestoreDisplayId(true);
 
                 Spell spell = GetCurrentSpell(CurrentSpellTypes.Generic);
                 if (spell != null)

Source/Game/Entities/Unit/Unit.cs

@@ -252,13 +252,17 @@ namespace Game.Entities
         }
 
         public bool IsInDisallowedMountForm()
+        {
+            return IsDisallowedMountForm(getTransForm(), GetShapeshiftForm(), GetDisplayId());
+        }
+
+        bool IsDisallowedMountForm(uint spellId, ShapeShiftForm form, uint displayId)
         {
             SpellInfo transformSpellInfo = Global.SpellMgr.GetSpellInfo(getTransForm());
             if (transformSpellInfo != null)
                 if (transformSpellInfo.HasAttribute(SpellAttr0.CastableWhileMounted))
                     return false;
 
-            ShapeShiftForm form = GetShapeshiftForm();
             if (form != 0)
             {
                 SpellShapeshiftFormRecord shapeshift = CliDB.SpellShapeshiftFormStorage.LookupByKey(form);
@@ -268,10 +272,10 @@ namespace Game.Entities
                 if (!shapeshift.Flags.HasAnyFlag(SpellShapeshiftFormFlags.IsNotAShapeshift))
                     return true;
             }
-            if (GetDisplayId() == GetNativeDisplayId())
+            if (displayId == GetNativeDisplayId())
                 return false;
 
-            CreatureDisplayInfoRecord display = CliDB.CreatureDisplayInfoStorage.LookupByKey(GetDisplayId());
+            CreatureDisplayInfoRecord display = CliDB.CreatureDisplayInfoStorage.LookupByKey(displayId);
             if (display == null)
                 return true;
 
@@ -2545,7 +2549,7 @@ namespace Game.Entities
 
         public uint GetDisplayId() { return GetUInt32Value(UnitFields.DisplayId); }
 
-        public void RestoreDisplayId()
+        public void RestoreDisplayId(bool ignorePositiveAurasPreventingMounting = false)
         {
             AuraEffect handledAura = null;
             // try to receive model from transform auras
@@ -2559,7 +2563,18 @@ namespace Game.Entities
                     if (aurApp != null)
                     {
                         if (handledAura == null)
+                        {
+                            if (!ignorePositiveAurasPreventingMounting)
                                 handledAura = eff;
+                            else
+                            {
+                                CreatureTemplate ci = Global.ObjectMgr.GetCreatureTemplate((uint)eff.GetMiscValue());
+                                if (ci != null)
+                                    if (!IsDisallowedMountForm(eff.GetId(), ShapeShiftForm.None, ObjectManager.ChooseDisplayId(ci)))
+                                        handledAura = eff;
+                            }
+                        }
+
                         // prefer negative auras
                         if (!aurApp.IsPositive())
                         {
@@ -2575,7 +2590,12 @@ namespace Game.Entities
                 handledAura.HandleEffect(this, AuraEffectHandleModes.SendForClient, true);
             // we've found shapeshift
             else if ((modelId = GetModelForForm(GetShapeshiftForm())) != 0)
+            {
+                if (!ignorePositiveAurasPreventingMounting || !IsDisallowedMountForm(0, GetShapeshiftForm(), modelId))
                     SetDisplayId(modelId);
+                else
+                    SetDisplayId(GetNativeDisplayId());
+            }
             // no auras found - set modelid to default
             else
                 SetDisplayId(GetNativeDisplayId());

Source/Game/Handlers/ArtifactHandler.cs

@@ -163,7 +163,7 @@ namespace Game
 
                 // change druid form appearance
                 if (artifactAppearance.OverrideShapeshiftDisplayID != 0 && artifactAppearance.OverrideShapeshiftFormID != 0 && _player.GetShapeshiftForm() == (ShapeShiftForm)artifactAppearance.OverrideShapeshiftFormID)
-                    _player.RestoreDisplayId();
+                    _player.RestoreDisplayId(_player.IsMounted());
             }
         }
 

Source/Game/Movement/Generators/WaypointMovement.cs

@@ -442,6 +442,7 @@ namespace Game.Movement
             }
 
             owner.RemoveFlag(PlayerFields.Flags, PlayerFlags.TaxiBenchmark);
+            owner.RestoreDisplayId();
         }
 
         public override void DoReset(Player owner)

Source/Game/Spells/Auras/AuraEffect.cs

@@ -1394,7 +1394,7 @@ namespace Game.Spells
                 }
 
                 if (modelid > 0)
-                    target.RestoreDisplayId();
+                    target.RestoreDisplayId(target.IsMounted());
 
                 switch (form)
                 {
@@ -1659,7 +1659,7 @@ namespace Game.Spells
                 if (target.GetTransForm() == GetId())
                     target.setTransForm(0);
 
-                target.RestoreDisplayId();
+                target.RestoreDisplayId(target.IsMounted());
 
                 // Dragonmaw Illusion (restore mount model)
                 if (GetId() == 42016 && target.GetMountID() == 16314)