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-rw-r--r--src/server/game/Spells/Spell.cpp99
-rw-r--r--src/server/game/Spells/SpellInfo.cpp34
-rw-r--r--src/server/game/Spells/SpellInfo.h4
3 files changed, 109 insertions, 28 deletions
diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index 22c10368326..2de0df007ce 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -5733,8 +5733,16 @@ SpellCastResult Spell::CheckCasterAuras(uint32* param1) const
if (m_spellInfo->HasAttribute(SPELL_ATTR6_IGNORE_CASTER_AURAS))
return SPELL_CAST_OK;
+ // these attributes only show the spell as usable on the client when it has related aura applied
+ // still they need to be checked against certain mechanics
+
+ // SPELL_ATTR5_USABLE_WHILE_STUNNED by default only MECHANIC_STUN (ie no sleep, knockout, freeze, etc.)
bool usableWhileStunned = m_spellInfo->HasAttribute(SPELL_ATTR5_USABLE_WHILE_STUNNED);
+
+ // SPELL_ATTR5_USABLE_WHILE_FEARED by default only fear (ie no horror)
bool usableWhileFeared = m_spellInfo->HasAttribute(SPELL_ATTR5_USABLE_WHILE_FEARED);
+
+ // SPELL_ATTR5_USABLE_WHILE_CONFUSED by default only disorient (ie no polymorph)
bool usableWhileConfused = m_spellInfo->HasAttribute(SPELL_ATTR5_USABLE_WHILE_CONFUSED);
// Glyph of Pain Suppression
@@ -5759,39 +5767,56 @@ SpellCastResult Spell::CheckCasterAuras(uint32* param1) const
}
*/
- if (unitflag & UNIT_FLAG_STUNNED)
+ // spell has attribute usable while having a cc state, check if caster has allowed mechanic auras, another mechanic types must prevent cast spell
+ auto mechanicCheck = [&](AuraType type) -> SpellCastResult
{
- // spell is usable while stunned, check if caster has allowed stun auras, another stun types must prevent cast spell
- if (usableWhileStunned)
+ bool foundNotMechanic = false;
+ Unit::AuraEffectList const& auras = m_caster->GetAuraEffectsByType(type);
+ for (AuraEffect const* aurEff : auras)
{
- static uint32 const allowedStunMask =
- 1 << MECHANIC_STUN
- | 1 << MECHANIC_SLEEP;
-
- bool foundNotStun = false;
- Unit::AuraEffectList const& stunAuras = m_caster->GetAuraEffectsByType(SPELL_AURA_MOD_STUN);
- for (AuraEffect const* stunEff : stunAuras)
+ uint32 const mechanicMask = aurEff->GetSpellInfo()->GetAllEffectsMechanicMask();
+ if (mechanicMask && !(mechanicMask & GetSpellInfo()->GetAllowedMechanicMask()))
{
- uint32 const stunMechanicMask = stunEff->GetSpellInfo()->GetAllEffectsMechanicMask();
- if (stunMechanicMask && !(stunMechanicMask & allowedStunMask))
+ foundNotMechanic = true;
+
+ // fill up aura mechanic info to send client proper error message
+ if (param1)
{
- foundNotStun = true;
+ *param1 = aurEff->GetSpellInfo()->Effects[aurEff->GetEffIndex()].Mechanic;
+ if (!*param1)
+ *param1 = aurEff->GetSpellInfo()->Mechanic;
+ }
+ break;
+ }
- // fill up aura mechanic info to send client proper error message
- if (param1)
- {
- *param1 = stunEff->GetSpellInfo()->Effects[stunEff->GetEffIndex()].Mechanic;
- if (!*param1)
- *param1 = stunEff->GetSpellInfo()->Mechanic;
- }
- break;
+ if (foundNotMechanic)
+ {
+ switch (type)
+ {
+ case SPELL_AURA_MOD_STUN:
+ return SPELL_FAILED_STUNNED;
+ case SPELL_AURA_MOD_FEAR:
+ return SPELL_FAILED_FLEEING;
+ case SPELL_AURA_MOD_CONFUSE:
+ return SPELL_FAILED_CONFUSED;
+ default:
+ ABORT();
+ return SPELL_FAILED_NOT_KNOWN;
}
}
- if (foundNotStun)
- result = SPELL_FAILED_STUNNED;
+ return SPELL_CAST_OK;
+ }
+ };
+
+ if (unitflag & UNIT_FLAG_STUNNED)
+ {
+ if (usableWhileStunned)
+ {
+ SpellCastResult mechanicResult = mechanicCheck(SPELL_AURA_MOD_STUN);
+ if (mechanicResult != SPELL_CAST_OK)
+ result = mechanicResult;
}
- // Not usable while stunned, however spell might provide some immunity that allows to cast it anyway
else if (!CheckSpellCancelsStun(param1))
result = SPELL_FAILED_STUNNED;
}
@@ -5799,10 +5824,28 @@ SpellCastResult Spell::CheckCasterAuras(uint32* param1) const
result = SPELL_FAILED_SILENCED;
else if (unitflag & UNIT_FLAG_PACIFIED && m_spellInfo->PreventionType == SPELL_PREVENTION_TYPE_PACIFY && !CheckSpellCancelsPacify(param1))
result = SPELL_FAILED_PACIFIED;
- else if (unitflag & UNIT_FLAG_FLEEING && !usableWhileFeared && !CheckSpellCancelsFear(param1))
- result = SPELL_FAILED_FLEEING;
- else if (unitflag & UNIT_FLAG_CONFUSED && !usableWhileConfused && !CheckSpellCancelsConfuse(param1))
- result = SPELL_FAILED_CONFUSED;
+ else if (unitflag & UNIT_FLAG_FLEEING)
+ {
+ if (usableWhileFeared)
+ {
+ SpellCastResult mechanicResult = mechanicCheck(SPELL_AURA_MOD_FEAR);
+ if (mechanicResult != SPELL_CAST_OK)
+ result = mechanicResult;
+ }
+ else if (!CheckSpellCancelsFear(param1))
+ result = SPELL_FAILED_FLEEING;
+ }
+ else if (unitflag & UNIT_FLAG_CONFUSED)
+ {
+ if (usableWhileConfused)
+ {
+ SpellCastResult mechanicResult = mechanicCheck(SPELL_AURA_MOD_CONFUSE);
+ if (mechanicResult != SPELL_CAST_OK)
+ result = mechanicResult;
+ }
+ else if (!CheckSpellCancelsConfuse(param1))
+ result = SPELL_FAILED_CONFUSED;
+ }
// Attr must make flag drop spell totally immune from all effects
if (result != SPELL_CAST_OK)
diff --git a/src/server/game/Spells/SpellInfo.cpp b/src/server/game/Spells/SpellInfo.cpp
index dff7a6a7f5e..e969c3d35d0 100644
--- a/src/server/game/Spells/SpellInfo.cpp
+++ b/src/server/game/Spells/SpellInfo.cpp
@@ -858,6 +858,8 @@ SpellInfo::SpellInfo(SpellEntry const* spellEntry)
_spellSpecific = SPELL_SPECIFIC_NORMAL;
_auraState = AURA_STATE_NONE;
+
+ _allowedMechanicMask = 0;
}
SpellInfo::~SpellInfo()
@@ -2787,7 +2789,34 @@ void SpellInfo::_LoadImmunityInfo()
immuneInfo.AuraTypeImmune.shrink_to_fit();
immuneInfo.SpellEffectImmune.shrink_to_fit();
+
+ _allowedMechanicMask |= immuneInfo.MechanicImmuneMask;
}
+
+ if (HasAttribute(SPELL_ATTR5_USABLE_WHILE_STUNNED))
+ {
+ switch (Id)
+ {
+ case 22812: // Barkskin
+ _allowedMechanicMask |=
+ (1 << MECHANIC_STUN) |
+ (1 << MECHANIC_FREEZE) |
+ (1 << MECHANIC_KNOCKOUT) |
+ (1 << MECHANIC_SLEEP);
+ break;
+ case 49039: // Lichborne, don't allow normal stuns
+ break;
+ default:
+ _allowedMechanicMask |= (1 << MECHANIC_STUN);
+ break;
+ }
+ }
+
+ if (HasAttribute(SPELL_ATTR5_USABLE_WHILE_CONFUSED))
+ _allowedMechanicMask |= (1 << MECHANIC_DISORIENTED);
+
+ if (HasAttribute(SPELL_ATTR5_USABLE_WHILE_FEARED))
+ _allowedMechanicMask |= (1 << MECHANIC_FEAR);
}
void SpellInfo::ApplyAllSpellImmunitiesTo(Unit* target, uint8 effIndex, bool apply) const
@@ -2979,6 +3008,11 @@ bool SpellInfo::SpellCancelsAuraEffect(SpellInfo const* auraSpellInfo, uint8 aur
return false;
}
+uint32 SpellInfo::GetAllowedMechanicMask() const
+{
+ return _allowedMechanicMask;
+}
+
float SpellInfo::GetMinRange(bool positive) const
{
if (!RangeEntry)
diff --git a/src/server/game/Spells/SpellInfo.h b/src/server/game/Spells/SpellInfo.h
index 6578dc8c933..f2fd3100aaa 100644
--- a/src/server/game/Spells/SpellInfo.h
+++ b/src/server/game/Spells/SpellInfo.h
@@ -524,6 +524,8 @@ class TC_GAME_API SpellInfo
bool CanSpellProvideImmunityAgainstAura(SpellInfo const* auraSpellInfo) const;
bool SpellCancelsAuraEffect(SpellInfo const* auraSpellInfo, uint8 auraEffIndex) const;
+ uint32 GetAllowedMechanicMask() const;
+
private:
// loading helpers
void _InitializeExplicitTargetMask();
@@ -544,6 +546,8 @@ class TC_GAME_API SpellInfo
SpellDiminishInfo _diminishInfoNonTriggered;
SpellDiminishInfo _diminishInfoTriggered;
+ uint32 _allowedMechanicMask;
+
ImmunityInfo _immunityInfo[MAX_SPELL_EFFECTS];
};