def add_aura(self, aura):
# Note: This order of applying, removing colliding and then returning might be problematic if cases are added to can_apply_aura.
# At the moment mount behaviour depends on this order
can_apply = self.can_apply_aura(aura)
self.remove_colliding_effects(aura)
if not can_apply:
return
aura.initialize_period_timestamps(
) # Initialize periodic spell timestamps on application
AuraEffectHandler.handle_aura_effect_change(aura)
aura.index = self.get_next_aura_index(aura)
self.active_auras[aura.index] = aura
if not aura.passive:
self.write_aura_to_unit(aura)
self.write_aura_flag_to_unit(aura)
self.send_aura_duration(aura)
# Aura application threat TODO handle threat elsewhere
if aura.is_harmful() and aura.source_spell.generates_threat():
self.unit_mgr.attack(aura.caster)
self.unit_mgr.set_dirty()
def check_aura_procs(self,
involved_cast=None,
killed_unit=False,
damage_info=None,
is_melee_swing=False):
is_receiver = (damage_info and damage_info.target is self.unit_mgr) or \
(involved_cast and involved_cast.spell_caster is not self.unit_mgr)
# Always pass the second unit as the effect target. The handler will choose the target based on the spell.
if damage_info:
effect_target = damage_info.attacker if is_receiver else damage_info.target
elif involved_cast:
# All targets for the spell could be passed, but this would only matter for ProcFlags.SPELL_CAST
# SPELL_CAST is only used by one deprecated spell which will have the correct target in initial_target.
effect_target = involved_cast.spell_caster if is_receiver else involved_cast.initial_target
else:
effect_target = self.unit_mgr
flag_cases = {
ProcFlags.DEAL_COMBAT_DMG:
not is_receiver and damage_info
and damage_info.total_damage > 0, # -> cast on target.
ProcFlags.TAKE_COMBAT_DMG:
is_receiver and damage_info and damage_info.total_damage > 0,
ProcFlags.KILL:
killed_unit,
ProcFlags.HEARTBEAT:
False, # Heartbeat effects are handled in their respective places on update - ignore the flag here.
ProcFlags.DODGE:
is_receiver and damage_info
and damage_info.proc_victim & ProcFlags.DODGE,
ProcFlags.PARRY:
is_receiver and damage_info
and damage_info.proc_victim & ProcFlags.PARRY,
ProcFlags.BLOCK:
is_receiver and damage_info
and damage_info.proc_victim & ProcFlags.BLOCK,
ProcFlags.SWING:
not is_receiver and is_melee_swing,
ProcFlags.SPELL_CAST:
not is_receiver and involved_cast, # Only used by zzOLDMind Bomb.
ProcFlags.SPELL_HIT:
is_receiver and involved_cast,
}
for aura in list(self.active_auras.values()):
flags = aura.source_spell.spell_entry.ProcFlags
if not flags:
continue
for proc_flag, condition in flag_cases.items():
if proc_flag & flags and condition and aura.proc_charges != 0: # Proc charges are set to -1 for auras with no charges so check for 0.
# Remove charge before trigger to avoid infinite loops with procs.
aura.proc_charges -= 1
AuraEffectHandler.handle_aura_effect_change(aura,
effect_target,
is_proc=True)
if aura.proc_charges == 0:
self.remove_aura(aura)
def update(self, elapsed):
if self.has_duration():
self.duration -= int(elapsed * 1000)
if not self.target: # Auras that are only tied to effects - ie. persistent area auras
return
if self.is_periodic():
AuraEffectHandler.handle_aura_effect_change(self)
def update(self, timestamp):
if self.has_duration():
self.spell_effect.update_effect_aura(timestamp)
if self.is_periodic():
AuraEffectHandler.handle_aura_effect_change(self, self.target)
if self.source_spell.cast_state != SpellState.SPELL_STATE_ACTIVE:
self.spell_effect.remove_old_periodic_effect_ticks()
def remove_aura(self, aura):
# TODO check if aura can be removed (by player)
AuraEffectHandler.handle_aura_effect_change(aura, True)
self.active_auras.pop(aura.index)
if aura.passive:
return # Passive auras aren't written to unit
self.write_aura_to_unit(aura, clear=True)
self.write_aura_flag_to_unit(aura, clear=True)
self.unit_mgr.set_dirty()
def remove_colliding_effects(self, aura):
# Special case with SpellEffect mounting and mounting by aura
if aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOUNTED and \
aura.target.unit_flags & UnitFlags.UNIT_MASK_MOUNTED and not \
self.get_auras_by_type(AuraTypes.SPELL_AURA_MOUNTED):
AuraEffectHandler.handle_mounted(
aura, aura.target, remove=True) # Remove mount effect
# If a mount aura would be applied but we dismount the unit, don't apply the new mount aura.
return False
aura_spell_template = aura.source_spell.spell_entry
new_aura_name = aura_spell_template.Name_enUS
new_aura_rank = DbcDatabaseManager.SpellHolder.spell_get_rank_by_spell(
aura_spell_template)
aura_effect_index = aura.spell_effect.effect_index
caster_guid = aura.caster.guid
for applied_aura in list(self.active_auras.values()):
applied_spell_entry = applied_aura.source_spell.spell_entry
applied_aura_name = applied_spell_entry.Name_enUS
applied_aura_rank = DbcDatabaseManager.SpellHolder.spell_get_rank_by_spell(
applied_spell_entry)
# TODO Same effects but different spells (exclusivity groups)?
# Note: This method ignores the case of a weaker spell being applied, as that is handled in can_apply_aura.
is_similar_and_weaker = applied_aura.spell_effect.effect_index == aura_effect_index and \
applied_aura_name == new_aura_name and applied_aura_rank < new_aura_rank
are_exclusive_by_source = ExtendedSpellData.AuraSourceRestrictions.are_colliding_auras(
aura.spell_id,
applied_aura.spell_id) # Paladin seals, warlock curses
# Source doesn't matter for unique auras.
is_unique = applied_aura.source_spell.spell_entry.AttributesEx & SpellAttributesEx.SPELL_ATTR_EX_AURA_UNIQUE or not aura.harmful # Buffs are unique.
is_stacking = applied_aura.can_stack
is_same_but_different_aura_index = aura.spell_id == applied_aura.spell_id and aura.spell_effect.effect_index != applied_aura.spell_effect.effect_index
casters_are_same = applied_aura.caster.guid == caster_guid
if is_similar_and_weaker and (is_unique or casters_are_same and not is_stacking) or \
are_exclusive_by_source and casters_are_same and not is_same_but_different_aura_index:
self.remove_aura(applied_aura)
continue
if applied_aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOD_SHAPESHIFT and \
aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOD_SHAPESHIFT:
self.remove_aura(
applied_aura) # Player can only be in one shapeshift form.
continue
return True
def update(self, timestamp):
if self.has_duration():
self.spell_effect.update_effect_aura(timestamp)
if self.is_periodic():
AuraEffectHandler.handle_aura_effect_change(self, self.target)
# Don't remove periodic ticks for channeled spells.
# Channeled spells have special handling for applied auras because of targeting reasons.
# See SpellManager::handle_spell_effect_update for more information.
if self.source_spell.cast_state != SpellState.SPELL_STATE_ACTIVE:
self.spell_effect.remove_old_periodic_effect_ticks()
def add_aura(self, aura):
can_apply = self.can_apply_aura(
aura) and self.remove_colliding_effects(aura)
if not can_apply:
return
# Application threat and negative aura application interrupts.
if aura.harmful:
if aura.caster.object_type_mask & ObjectTypeFlags.TYPE_UNIT and \
aura.source_spell.generates_threat():
# TODO Replace once threat is handled properly.
self.unit_mgr.attack(aura.caster)
self.check_aura_interrupts(negative_aura_applied=True)
applied_similar_auras = self.get_similar_applied_auras(
aura, accept_all_ranks=False, accept_all_sources=False)
is_refresh = len(applied_similar_auras) > 0
if is_refresh > 0:
# Only one similar aura from the same source can be applied.
# Lower ranks are removed by remove_colliding_effects.
similar_aura = applied_similar_auras[0]
if aura.can_stack and similar_aura.applied_stacks < similar_aura.max_stacks:
similar_aura.applied_stacks += 1 # Add a stack if the aura isn't at max already
similar_aura.spell_effect.start_aura_duration(
overwrite=True) # Refresh duration
# Note that this aura will not be actually applied.
# Index and stacks are copied for sending information and updating effect points.
aura.applied_stacks = similar_aura.applied_stacks
aura.index = similar_aura.index
else:
aura.index = self.get_next_aura_index(aura)
self.active_auras[aura.index] = aura
# Handle effects after possible stack increase/refresh to update stats properly.
AuraEffectHandler.handle_aura_effect_change(aura, aura.target)
# TODO Some aura applications appear twice in the combat log.
# For example, the proc effect from frost armor appears twice.
# Gouge seems to appear twice against players (tested in duels), but not against NPCs.
if not aura.passive:
if not is_refresh:
self.write_aura_to_unit(aura)
self.write_aura_flag_to_unit(aura)
self.send_aura_duration(aura)
def remove_aura(self, aura, canceled=False):
AuraEffectHandler.handle_aura_effect_change(aura,
aura.target,
remove=True)
if not self.active_auras.pop(aura.index, None):
return
# Some area effect auras (paladin auras, tranq etc.) are tied to spell effects. Cancel cast on aura cancel, canceling the auras as well.
self.unit_mgr.spell_manager.remove_cast(aura.source_spell,
interrupted=canceled)
# Some spells start cooldown on aura remove, handle that case here.
if aura.source_spell.trigger_cooldown_on_aura_remove():
self.unit_mgr.spell_manager.set_on_cooldown(
aura.source_spell, start_locked_cooldown=True)
self.write_aura_to_unit(aura, clear=True)
def remove_colliding_effects(self, aura):
# Special case with SpellEffect mounting and mounting by aura
if aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOUNTED and \
aura.target.unit_flags & UnitFlags.UNIT_MASK_MOUNTED and not \
self.get_auras_by_type(AuraTypes.SPELL_AURA_MOUNTED):
AuraEffectHandler.handle_mounted(aura, True) # Remove mount effect
aura_spell_template = aura.source_spell.spell_entry
aura_effect_index = aura.spell_effect.effect_index
caster_guid = aura.caster.guid
for applied_aura in list(self.active_auras.values()):
if applied_aura.caster.guid != caster_guid or \
applied_aura.spell_effect.effect_index != aura_effect_index or \
applied_aura.source_spell.spell_entry != aura_spell_template:
continue
self.remove_aura(
applied_aura) # Remove identical auras the caster has applied
def add_aura(self, aura):
can_apply = self.can_apply_aura(
aura) and self.remove_colliding_effects(aura)
if not can_apply:
return
# Application threat and negative aura application interrupts.
if aura.harmful:
# Add threat for non-player targets against unit casters.
if aura.caster.object_type_mask & ObjectTypeFlags.TYPE_UNIT and \
self.unit_mgr.get_type_id() == ObjectTypeIds.ID_UNIT and aura.source_spell.generates_threat():
# TODO: Threat calculation.
self.unit_mgr.threat_manager.add_threat(aura.caster, 10)
self.check_aura_interrupts(negative_aura_applied=True)
applied_similar_auras = self.get_similar_applied_auras(
aura, accept_all_ranks=False, accept_all_sources=False)
is_refresh = len(applied_similar_auras) > 0
if is_refresh > 0:
# Only one similar aura from the same source can be applied.
# Lower ranks are removed by remove_colliding_effects.
similar_aura = applied_similar_auras[0]
if aura.can_stack and similar_aura.applied_stacks < similar_aura.max_stacks:
similar_aura.applied_stacks += 1 # Add a stack if the aura isn't at max already
similar_aura.spell_effect.start_aura_duration(
overwrite=True) # Refresh duration
# Note that this aura will not be actually applied.
# Index and stacks are copied for sending information and updating effect points.
aura.applied_stacks = similar_aura.applied_stacks
aura.index = similar_aura.index
else:
aura.index = self.get_next_aura_index(aura)
self.active_auras[aura.index] = aura
# Handle effects after possible stack increase/refresh to update stats properly.
AuraEffectHandler.handle_aura_effect_change(aura, aura.target)
self.write_aura_to_unit(aura, is_refresh=is_refresh)
def remove_colliding_effects(self, aura):
# Special case with SpellEffect mounting and mounting by aura
if aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOUNTED and \
aura.target.unit_flags & UnitFlags.UNIT_MASK_MOUNTED and not \
self.get_auras_by_type(AuraTypes.SPELL_AURA_MOUNTED):
AuraEffectHandler.handle_mounted(
aura, aura.target, remove=True) # Remove mount effect
aura_spell_template = aura.source_spell.spell_entry
aura_effect_index = aura.spell_effect.effect_index
caster_guid = aura.caster.guid
for applied_aura in list(self.active_auras.values()):
# TODO is_similar does not match different spell ranks
is_similar = applied_aura.source_spell.spell_entry == aura_spell_template and \
applied_aura.spell_effect.effect_index == aura_effect_index # Spell and effect are the same
are_exclusive_by_source = ExtendedSpellData.AuraSourceRestrictions.are_colliding_auras(
aura.spell_id,
applied_aura.spell_id) # Paladin seals, warlock curses
# Source doesn't matter for unique auras
is_unique = applied_aura.source_spell.spell_entry.AttributesEx & SpellAttributesEx.SPELL_ATTR_EX_AURA_UNIQUE or not aura.harmful # Buffs are unique.
is_stacking = applied_aura.can_stack
casters_are_same = applied_aura.caster.guid == caster_guid
if is_similar and (is_unique or casters_are_same and not is_stacking) or \
are_exclusive_by_source and casters_are_same:
self.remove_aura(applied_aura)
continue
if applied_aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOD_SHAPESHIFT and \
aura.spell_effect.aura_type == AuraTypes.SPELL_AURA_MOD_SHAPESHIFT:
self.remove_aura(
applied_aura) # Player can only be in one shapeshift form
continue
aura.spell_id)) > 0:
if existing_auras[0].applied_stacks < existing_auras[0].max_stacks:
existing_auras[
0].applied_stacks += 1 # Add a stack if the aura isn't at max already
existing_auras[0].spell_effect.start_aura_duration(
overwrite=True) # Refresh duration
# Note that this aura will not be actually applied. Index and stacks are copied for sending information and updating effect points.
aura.applied_stacks = existing_auras[0].applied_stacks
aura.index = existing_auras[0].index
else:
aura.index = self.get_next_aura_index(aura)
self.active_auras[aura.index] = aura
# Handle effects after possible stack increase to update stats properly
AuraEffectHandler.handle_aura_effect_change(aura, aura.target)
if not aura.passive:
self.write_aura_to_unit(aura)
self.write_aura_flag_to_unit(aura)
self.send_aura_duration(aura)
# Aura application threat TODO handle threat elsewhere
if aura.harmful:
if aura.source_spell.generates_threat():
self.unit_mgr.attack(aura.caster)
self.check_aura_interrupts(negative_aura_applied=True)
self.unit_mgr.set_dirty()
has_moved = False # Set from SpellManager - TODO pass movement info from unit update instead