fix: closes #34. Thank you @Hairic95

addons/godot_gameplay_systems/attributes_and_abilities/nodes/ability_container.gd

@@ -108,7 +108,7 @@ func _get_cooldown_timer(ability: Ability) -> Timer:
 ## Handles the [signal Ability.activated] signal
 ## [br]It's called internally by the current [AbilityContainer], so you should not call it.
 func _handle_ability_activated(ability: Ability, activation_event: ActivationEvent) -> void:
-	if not active:
+	if not _is_eligible_for_operation(activation_event):
 		return
 
 	_handle_lifecycle_tagging(LifeCycle.Activated, ability)
@@ -131,7 +131,7 @@ func _handle_ability_activated(ability: Ability, activation_event: ActivationEve
 ## Handles the [signal Ability.blocked] signal.
 ## [br]It's called internally by the current [AbilityContainer], so you should not call it.
 func _handle_ability_blocked(ability: Ability, activation_event: ActivationEvent) -> void:
-	if not active:
+	if not _is_eligible_for_operation(activation_event):
 		return
 
 	ability_blocked.emit(ability, activation_event)
@@ -141,7 +141,7 @@ func _handle_ability_blocked(ability: Ability, activation_event: ActivationEvent
 ## Handles the [signal Ability.cancelled] signal
 ## [br]It's called internally by the current [AbilityContainer], so you should not call it.
 func _handle_ability_cancelled(ability: Ability, activation_event: ActivationEvent) -> void:
-	if not active:
+	if not _is_eligible_for_operation(activation_event):
 		return
 
 	_handle_lifecycle_tagging(LifeCycle.Cancelled, ability)
@@ -152,7 +152,7 @@ func _handle_ability_cancelled(ability: Ability, activation_event: ActivationEve
 ## Handles the [signal Ability.ended] signal
 ## [br]It's called internally by the current [AbilityContainer], so you should not call it.
 func _handle_ability_ended(ability: Ability, activation_event: ActivationEvent) -> void:
-	if not active:
+	if not _is_eligible_for_operation(activation_event):
 		return
 
 	_handle_lifecycle_tagging(LifeCycle.Ended, ability)
@@ -193,6 +193,11 @@ func _handle_lifecycle_tagging(lifecycle: LifeCycle, ability: Ability) -> void:
 			return
 
 
+## Returns [code]true[/code] if the [AbilityContainer] can process and [ActivationEvent], [code]false[/code] otherwise.
+func _is_eligible_for_operation(activation_event: ActivationEvent) -> bool:
+	return activation_event.ability_container == self and active
+
+
 ## The [method Node._ready] override
 func _ready() -> void:
 	gameplay_attribute_map = get_node(gameplay_attribute_map_path)

addons/godot_gameplay_systems/attributes_and_abilities/test/unit/test_ability_container.gd

@@ -222,3 +222,43 @@ func test_granting_issue_23() -> void:
 
 
 	# it should reach this point to avoid that possible bug about not granting abilities at all if one is not grantable
+
+
+class _test_Enemy_hairic95 extends Node2D:
+	var ability_container: AbilityContainer
+
+	func _init(ability: Ability000) -> void:
+		ability_container = AbilityContainer.new()
+		add_child(ability_container)
+
+
+	func fire() -> void:
+		ability_container.activate_many()
+
+
+func test_hairic95_issue() -> void:
+	var ability000 = Ability000.new("000")
+
+	ability000.tags_activation.append("started")
+
+	var enemy000 = _test_Enemy_hairic95.new(ability000)
+	var enemy001 = _test_Enemy_hairic95.new(ability000)
+	var enemy002 = _test_Enemy_hairic95.new(ability000)
+	var enemies = [enemy000, enemy001, enemy002]
+
+	add_child_autofree(enemy000)
+	add_child_autofree(enemy001)
+	add_child_autofree(enemy002)
+
+	enemy000.get("fire").call()
+
+	assert_eq(enemy000.ability_container.tags.has("started") == true, "Ability container should have the tag")
+	assert_eq(enemy001.ability_container.tags.has("started") == false, "Ability container should have the tag")
+	assert_eq(enemy002.ability_container.tags.has("started") == false, "Ability container should have the tag")
+
+	for e in enemies:
+		e.get("fire").call()
+
+	assert_eq(enemy000.ability_container.tags.has("started") == true, "Ability container should have the tag")
+	assert_eq(enemy001.ability_container.tags.has("started") == true, "Ability container should have the tag")
+	assert_eq(enemy002.ability_container.tags.has("started") == true, "Ability container should have the tag")