From b071efe10508617c1ace97c6005aa452a299f9ed Mon Sep 17 00:00:00 2001
From: hondacrx <prelude_20032002@yahoo.com>
Date: Wed, 8 Sep 2021 23:35:22 -0400
Subject: [PATCH] Core/Spell: fix LoS checks for GameObject spells

Port From (https://github.com/TrinityCore/TrinityCore/commit/50fe2dc7e305fa32d30bac6ad0ced2e5647ac02b)
---
 Source/Framework/Constants/Spells/SpellConst.cs   |  2 +-
 Source/Game/Entities/GameObject/GameObjectData.cs | 13 +++++++++++++
 Source/Game/Spells/Spell.cs                       |  6 ++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/Source/Framework/Constants/Spells/SpellConst.cs b/Source/Framework/Constants/Spells/SpellConst.cs
index 694420199..efbe63059 100644
--- a/Source/Framework/Constants/Spells/SpellConst.cs
+++ b/Source/Framework/Constants/Spells/SpellConst.cs
@@ -1464,7 +1464,7 @@ namespace Framework.Constants
         All = (Normal | Magic),
     }
 
-    [System.Flags]
+    [Flags]
     public enum SpellCastFlags : uint
     {
         None = 0x0,
diff --git a/Source/Game/Entities/GameObject/GameObjectData.cs b/Source/Game/Entities/GameObject/GameObjectData.cs
index cd6868326..68185b92d 100644
--- a/Source/Game/Entities/GameObject/GameObjectData.cs
+++ b/Source/Game/Entities/GameObject/GameObjectData.cs
@@ -275,6 +275,19 @@ namespace Game.Entities
             }
         }
 
+        public uint GetRequireLOS() => type switch
+        {
+            GameObjectTypes.Button => Button.requireLOS,
+            GameObjectTypes.QuestGiver => QuestGiver.requireLOS,
+            GameObjectTypes.Chest => Chest.requireLOS,
+            GameObjectTypes.Trap => Trap.requireLOS,
+            GameObjectTypes.Goober => Goober.requireLOS,
+            GameObjectTypes.FlagStand => FlagStand.requireLOS,
+            GameObjectTypes.NewFlag => NewFlag.requireLOS,
+            GameObjectTypes.GatheringNode => GatheringNode.requireLOS,
+            _ => 0,
+        };
+
         public uint GetLockId()
         {
             switch (type)
diff --git a/Source/Game/Spells/Spell.cs b/Source/Game/Spells/Spell.cs
index bb20424a6..37942aa5a 100644
--- a/Source/Game/Spells/Spell.cs
+++ b/Source/Game/Spells/Spell.cs
@@ -6557,6 +6557,12 @@ namespace Game.Spells
             if (m_spellInfo.HasAttribute(SpellAttr2.CanTargetNotInLos) || Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_spellInfo.Id, null, (byte)DisableFlags.SpellLOS))
                 return true;
 
+            // check if gameobject ignores LOS
+            GameObject gobCaster = m_caster.ToGameObject();
+            if (gobCaster != null)
+                if (!gobCaster.GetGoInfo().GetRequireLOS())
+                    return true;
+
             // if spell is triggered, need to check for LOS disable on the aura triggering it and inherit that behaviour
             if (IsTriggered() && m_triggeredByAuraSpell != null && (m_triggeredByAuraSpell.HasAttribute(SpellAttr2.CanTargetNotInLos) || Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_triggeredByAuraSpell.Id, null, (byte)DisableFlags.SpellLOS)))
                 return true;