Implemented state machine & added NPC ship template

scripts/State Machine/Kamikaze/WanderingState.gd

@@ -0,0 +1,52 @@
+extends State
+
+@onready var ship = get_parent().get_parent()
+@onready var star_system = get_tree().current_scene
+
+@onready var update_timer = $UpdateDestination
+## Ship will strive to achieve this angle
+var destination_degrees: float = 0:
+	set(value):
+		if value > 180:
+			destination_degrees = value - 360
+		elif value < -180:
+			destination_degrees = 360 + value
+		else:
+			destination_degrees = value
+## Delta to destination_degrees
+var destination_difference: float = 15.0
+## available map bounds (use with absolute position)
+var available_bounds: Vector2
+
+func _ready():
+	available_bounds = Vector2(star_system.width / 2, star_system.height / 2)
+	randomize()
+
+func enter(_message):
+	update_timer.start()
+	update_destination()
+
+func process(_delta):
+	# checking if need to apply torque
+	var current_destination_difference = destination_degrees - ship.hull.global_rotation_degrees
+	var rotation_sign = sign(current_destination_difference)
+	if current_destination_difference < 0:
+		current_destination_difference = 180 - current_destination_difference
+	if current_destination_difference > 180:
+		current_destination_difference -= 180
+	if abs(current_destination_difference) > destination_difference:
+		ship.engine.rotation_axis = rotation_sign * (current_destination_difference / 180)
+	else:
+		ship.engine.rotation_axis = 0.0
+	# making ship always accelerate
+	ship.engine.acceleration_axis = 1.0
+	# if ship is out of star system bounds, set destination angle to center
+	if abs(ship.global_position.x) > available_bounds.x or abs(ship.global_position.y) > available_bounds.y:
+		destination_degrees = rad_to_deg(ship.global_position.angle_to_point(Vector2.ZERO))
+
+func exit():
+	update_timer.stop()
+
+## Set new random direction
+func update_destination():
+	destination_degrees += randi_range(-180, 180)