Core/Entities: completely remove 60% melee miss cap as there is no proof of its existence

- Auras modifying hit chance should have full effect now

Ref issue #21629

(cherry picked from commit a35d0a5f56c224ea081cdd5e16eb7bd181e70ab0)

4 files changed, 5 insertions, 31 deletions

diff --git a/src/server/game/Entities/Unit/StatSystem.cpp b/src/server/game/Entities/Unit/StatSystem.cpp
index 501060b954b..d8cde240880 100644
--- a/src/server/game/Entities/Unit/StatSystem.cpp
+++ b/src/server/game/Entities/Unit/StatSystem.cpp
@@ -742,14 +742,12 @@ void Player::UpdateArmorPenetration(int32 amount)
 
 void Player::UpdateMeleeHitChances()
 {
-    m_modMeleeHitChance = 7.5f + (float)GetTotalAuraModifier(SPELL_AURA_MOD_HIT_CHANCE);
-    m_modMeleeHitChance += GetRatingBonusValue(CR_HIT_MELEE);
+    m_modMeleeHitChance = 7.5f + GetRatingBonusValue(CR_HIT_MELEE);
 }
 
 void Player::UpdateRangedHitChances()
 {
-    m_modRangedHitChance = 7.5f + (float)GetTotalAuraModifier(SPELL_AURA_MOD_HIT_CHANCE);
-    m_modRangedHitChance += GetRatingBonusValue(CR_HIT_RANGED);
+    m_modRangedHitChance = 7.5f + GetRatingBonusValue(CR_HIT_RANGED);
 }
 
 void Player::UpdateSpellHitChances()
diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index 42a17fd2c73..7ed94e06164 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -11524,10 +11524,8 @@ float Unit::MeleeSpellMissChance(Unit const* victim, WeaponAttackType attType, S
     else
         missChance -= m_modMeleeHitChance;
 
-    // Limit miss chance to 60%
-    missChance = std::min(missChance, 60.f);
-
-    // miss chance from SPELL_AURA_MOD_ATTACKER_xxx_HIT_CHANCE can exceed 60% miss cap (eg aura 50240)
+    // miss chance from auras after calculating skill based miss
+    missChance -= GetTotalAuraModifier(SPELL_AURA_MOD_HIT_CHANCE);
     if (attType == RANGED_ATTACK)
         missChance -= victim->GetTotalAuraModifier(SPELL_AURA_MOD_ATTACKER_RANGED_HIT_CHANCE);
     else
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index d44c339e5ce..cb8fb48e0f3 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -122,7 +122,7 @@ NonDefaultConstructible<pAuraEffectHandler> AuraEffectHandler[TOTAL_AURAS]=
     &AuraEffect::HandleAuraModBlockPercent,                       // 51 SPELL_AURA_MOD_BLOCK_PERCENT
     &AuraEffect::HandleAuraModWeaponCritPercent,                  // 52 SPELL_AURA_MOD_WEAPON_CRIT_PERCENT
     &AuraEffect::HandleNoImmediateEffect,                         // 53 SPELL_AURA_PERIODIC_LEECH implemented in AuraEffect::PeriodicTick
-    &AuraEffect::HandleModHitChance,                              // 54 SPELL_AURA_MOD_HIT_CHANCE
+    &AuraEffect::HandleNoImmediateEffect,                         // 54 SPELL_AURA_MOD_HIT_CHANCE implemented in Unit::MeleeSpellMissChance
     &AuraEffect::HandleModSpellHitChance,                         // 55 SPELL_AURA_MOD_SPELL_HIT_CHANCE
     &AuraEffect::HandleAuraTransform,                             // 56 SPELL_AURA_TRANSFORM
     &AuraEffect::HandleModSpellCritChance,                        // 57 SPELL_AURA_MOD_SPELL_CRIT_CHANCE
@@ -3956,27 +3956,6 @@ void AuraEffect::HandleAuraModWeaponCritPercent(AuraApplication const* aurApp, u
     target->UpdateAllWeaponDependentCritAuras();
 }
 
-void AuraEffect::HandleModHitChance(AuraApplication const* aurApp, uint8 mode, bool /*apply*/) const
-{
-    if (!(mode & (AURA_EFFECT_HANDLE_CHANGE_AMOUNT_MASK | AURA_EFFECT_HANDLE_STAT)))
-        return;
-
-    Unit* target = aurApp->GetTarget();
-
-    // handle stack rules
-    if (target->GetTypeId() == TYPEID_PLAYER)
-    {
-        target->ToPlayer()->UpdateMeleeHitChances();
-        target->ToPlayer()->UpdateRangedHitChances();
-    }
-    else
-    {
-        float value = target->GetTotalAuraModifier(SPELL_AURA_MOD_HIT_CHANCE);
-        target->m_modMeleeHitChance = value;
-        target->m_modRangedHitChance = value;
-    }
-}
-
 void AuraEffect::HandleModSpellHitChance(AuraApplication const* aurApp, uint8 mode, bool apply) const
 {
     if (!(mode & (AURA_EFFECT_HANDLE_CHANGE_AMOUNT_MASK | AURA_EFFECT_HANDLE_STAT)))
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.h b/src/server/game/Spells/Auras/SpellAuraEffects.h
index 476be23e451..2bed9f05d4c 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.h
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.h
@@ -262,7 +262,6 @@ class TC_GAME_API AuraEffect
         void HandleAuraModBlockPercent(AuraApplication const* aurApp, uint8 mode, bool apply) const;
         void HandleAuraModRegenInterrupt(AuraApplication const* aurApp, uint8 mode, bool apply) const;
         void HandleAuraModWeaponCritPercent(AuraApplication const* aurApp, uint8 mode, bool apply) const;
-        void HandleModHitChance(AuraApplication const* aurApp, uint8 mode, bool apply) const;
         void HandleModSpellHitChance(AuraApplication const* aurApp, uint8 mode, bool apply) const;
         void HandleModSpellCritChance(AuraApplication const* aurApp, uint8 mode, bool apply) const;
         void HandleAuraModCritPct(AuraApplication const* aurApp, uint8 mode, bool apply) const;