police siren and engine sfx

enemies/base_enemy.tscn

@@ -1,6 +1,7 @@
 [gd_scene format=3 uid="uid://oyqyvj5xo5mf"]
 
 [ext_resource type="Script" uid="uid://c6xr2j0g1ep7j" path="res://enemies/enemy.gd" id="1_j7qyq"]
+[ext_resource type="AudioStream" uid="uid://q8b6o255ofgb" path="res://sfx/police-siren_90bpm_A#_major.wav" id="2_bfj6p"]
 
 [sub_resource type="Curve" id="Curve_spw8y"]
 _limits = [1.0, 20.0, -1.0, 1.0]
@@ -20,4 +21,11 @@ unique_name_in_owner = true
 collision_layer = 0
 collision_mask = 2
 
+[node name="Siren" type="AudioStreamPlayer3D" parent="." unique_id=2085366724]
+unique_name_in_owner = true
+stream = ExtResource("2_bfj6p")
+autoplay = true
+max_distance = 50.0
+bus = &"Police Siren"
+
 [connection signal="body_entered" from="Hurtbox" to="." method="_on_hurtbox_body_entered"]

enemies/enemy.gd

@@ -56,13 +56,31 @@ func _process(delta: float) -> void:
 
 	move_and_slide()
 
+func kill() -> void:
+	queue_free()
+
+	var siren: AudioStreamPlayer3D = %Siren
+	siren.reparent(get_tree().current_scene)
+	var t := siren.create_tween()
+
+	if randf() < .25:
+		t.tween_property(siren, "pitch_scale", .25, .5)
+		t.tween_property(siren, "pitch_scale", .35, .25)
+		t.tween_property(siren, "pitch_scale", .0, .25)
+	else:
+		t.tween_property(siren, "pitch_scale", .0, .5)
+
+	t.finished.connect(siren.queue_free)
+
+	SignalBus.enemy_destroyed.emit()
+
 
 func hit(proj: Node3D, damage: float) -> bool:
 	if invulnerable: return true
 	health -= damage
 	if health <= 0:
-		queue_free()
-		SignalBus.enemy_destroyed.emit()
+		kill()
+
 	else:
 		if proj is PlayerProjectile:
 			knockback = proj.velocity * 2. * knockback_mul * proj.knockback_mul

enemies/police_car/weak_point.gd

@@ -26,7 +26,7 @@ func hit(proj: Node3D, _damage: float) -> bool:
 		label_vfx.position = parent.position
 		parent.add_sibling(label_vfx)
 
-		parent.queue_free()
+		parent.kill()
 
 		SignalBus.perfect_shot_hit.emit()