Core/Scripts: fix Nightfall proc chance and reduce it for victims with level above 60. (#3304)

* Core/Scripts: fix Nightfall proc chance and reduce it for victims with level above 60

Adding a TrinityCore commit eac9c1f0b9

* Update rev_1597581112860069800.sql

* Update rev_1597581112860069800.sql

Co-authored-by: Francesco Borzì <borzifrancesco@gmail.com>
Co-authored-by: Stefano Borzì <stefanoborzi32@gmail.com>

src/server/game/Scripting/ScriptMgr.h

@@ -47,6 +47,7 @@ class Quest;
 class ScriptMgr;
 class Spell;
 class SpellScript;
+class SpellInfo;
 class SpellCastTargets;
 class Transport;
 class StaticTransport;
@@ -425,6 +426,9 @@ class ItemScript : public ScriptObject
         // Called when the item is destroyed.
         virtual bool OnRemove(Player* /*player*/, Item* /*item*/) { return false; }
 
+        // Called before casting a combat spell from this item (chance on hit spells of item template, can be used to prevent cast if returning false)
+        virtual bool OnCastItemCombatSpell(Player* /*player*/, Unit* /*victim*/, SpellInfo const* /*spellInfo*/, Item* /*item*/) { return true; }
+
         // Called when the item expires (is destroyed).
         virtual bool OnExpire(Player* /*player*/, ItemTemplate const* /*proto*/) { return false; }
 
@@ -1304,6 +1308,7 @@ class ScriptMgr
         bool OnItemUse(Player* player, Item* item, SpellCastTargets const& targets);
         bool OnItemExpire(Player* player, ItemTemplate const* proto);
         bool OnItemRemove(Player* player, Item* item);
+        bool OnCastItemCombatSpell(Player* player, Unit* victim, SpellInfo const* spellInfo, Item* item);
         void OnGossipSelect(Player* player, Item* item, uint32 sender, uint32 action);
         void OnGossipSelectCode(Player* player, Item* item, uint32 sender, uint32 action, const char* code);