Turret shoots, can loose player

src/Actors/Enemies/Machines/Turret.gd

@@ -6,7 +6,9 @@ extends KinematicBody2D
 onready var sightline: RayCast2D = $RayCast2D
 onready var turret_state_machine = $TurretStateMachine
 onready var lock_on_timer = $LockOnTimer
+onready var sight_lost_timer = $SightLostTimer
 onready var turret_animation = $AnimationPlayer.get_animation("Turret Rotation")
+onready var Bullet = preload("res://src/HarmfulObjects/Bullet.tscn")
 # Derives the freedom from the number of bald head eagles
 onready var angle_of_freedom = deg2rad(
 	turret_animation.track_get_key_value(
@@ -36,6 +38,7 @@ func searching():
 			prey = collider
 
 
+# TODO should this stand still?
 func start_locking():
 	target_ray = RayCast2D.new()
 	add_child(target_ray)
@@ -51,8 +54,8 @@ func is_locked_on_target():
 	return lock_on_timer.is_stopped()
 
 
+# TODO simplify/split this method
 func shooting():
-	target_ray.cast_to = to_local(prey.position)
 	var target_angle = target_ray.cast_to.angle_to(sightline.cast_to)
 	var rotation_speed = max(
 		min_rotation_speed, abs(target_angle / rotation_speed_divider)
@@ -68,4 +71,26 @@ func shooting():
 		# The collider returns not the area or body it hit, but the parent of them
 		var collider = sightline.get_collider()
 		if collider.is_in_group("player"):
-			prey = collider
+			sight_lost_timer.stop()
+			target_ray.cast_to = to_local(prey.position)
+		else:
+			if (
+				sight_lost_timer.get_time_left() < 0.1
+				&& sight_lost_timer.get_time_left() > 0
+			):
+				prey = null
+				target_ray.queue_free()
+				return
+			if sight_lost_timer.is_stopped():
+				sight_lost_timer.start()
+			else:
+				target_ray.cast_to = to_local(prey.position)
+
+	spawn_projectile()
+
+
+func spawn_projectile():
+	var b = Bullet.instance()
+	owner.add_child(b)
+	b.set_collision_mask_bit(1, false)
+	b.transform = $Muzzle.global_transform

src/Actors/Enemies/Machines/Turret.tscn

@@ -42,6 +42,7 @@ shape = SubResource( 1 )
 [node name="RayCast2D" type="RayCast2D" parent="."]
 enabled = true
 cast_to = Vector2( 0, 1e+07 )
+collision_mask = 59
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 pause_mode = 2
@@ -63,4 +64,12 @@ align = 1
 valign = 1
 
 [node name="LockOnTimer" type="Timer" parent="."]
+wait_time = 0.633
+one_shot = true
+
+[node name="Muzzle" type="Position2D" parent="."]
+position = Vector2( 0, 39 )
+
+[node name="SightLostTimer" type="Timer" parent="."]
+wait_time = 3.33
 one_shot = true

src/Actors/Enemies/Machines/TurretStateMachine.gd

@@ -55,6 +55,8 @@ func _get_transition(_delta):
 	if parent.prey != null && self.state == "searching":
 		parent.start_locking()
 		new_state = "locking"
+	if parent.prey == null && self.state == "shooting":
+		new_state = "searching"
 	if self.state == "locking" && parent.is_locked_on_target():
 		new_state = "shooting"
 	if new_state != self.state:

src/HarmfulObjects/Bullet.gd

@@ -11,7 +11,7 @@ func _ready() -> void:
 
 
 func _physics_process(delta: float) -> void:
-	position.x += 30 * delta
+	position += transform.y * 500 * delta
 
 
 func _on_Bullet_body_entered(_body: Node) -> void:

src/HarmfulObjects/Bullet.tscn

@@ -7,7 +7,6 @@
 extents = Vector2( 1.51498, 5.05697 )
 
 [node name="Bullet" type="Area2D" groups=["harmful"]]
-rotation = 1.5708
 collision_layer = 64
 collision_mask = 59
 script = ExtResource( 2 )