extends Building


func can_citizen_enter(coord: Vector2i, direction: Board.Direction) -> bool:
	var down_adjustment := Board.get_next_direction(Board.Direction.DOWN, get_rotation_count())
	var left_adjustment := Board.get_next_direction(Board.Direction.LEFT, get_rotation_count())
	var right_adjustment := Board.get_next_direction(Board.Direction.RIGHT, get_rotation_count())
	var correct_heading := Board.get_next_direction(Board.Direction.UP, get_rotation_count())

	var entrance_1 := starting_coord + Board.get_direction_vector(down_adjustment)
	var entrance_2 := (
		starting_coord
		+ Board.get_direction_vector(left_adjustment)
		+ Board.get_direction_vector(down_adjustment)
	)
	var entrance_3 := (
		starting_coord
		+ Board.get_direction_vector(left_adjustment)
		+ Board.get_direction_vector(left_adjustment)
		+ Board.get_direction_vector(down_adjustment)
	)
	var entrance_4 := (
		starting_coord
		+ Board.get_direction_vector(right_adjustment)
		+ Board.get_direction_vector(down_adjustment)
	)
	var entrance_5 := (
		starting_coord
		+ Board.get_direction_vector(right_adjustment)
		+ Board.get_direction_vector(right_adjustment)
		+ Board.get_direction_vector(down_adjustment)
	)

	return (
		(
			coord == entrance_1
			or coord == entrance_2
			or coord == entrance_3
			or coord == entrance_4
			or coord == entrance_5
		)
		and direction == correct_heading
	)


func get_tile_coords() -> Array[Vector2i]:
	var result: Array[Vector2i] = []
	result.push_back(starting_coord)
	result.push_back(
		starting_coord + Vector2i(Vector2.RIGHT.rotated(deg_to_rad(90 * get_rotation_count())))
	)
	result.push_back(
		starting_coord + Vector2i(Vector2.RIGHT.rotated(deg_to_rad(90 * get_rotation_count()))) * 2
	)
	result.push_back(
		starting_coord + Vector2i(Vector2.LEFT.rotated(deg_to_rad(90 * get_rotation_count())))
	)
	result.push_back(
		starting_coord + Vector2i(Vector2.LEFT.rotated(deg_to_rad(90 * get_rotation_count()))) * 2
	)
	return result


func get_direction_queue(citizen: Citizen) -> Array[Board.Direction]:
	var result: Array[Board.Direction] = []
	match citizen.current_tile_coords - starting_coord:
		Vector2i(-2, 0):
			result.append(Board.Direction.RIGHT)
			result.append(Board.Direction.RIGHT)
		Vector2i(-1, 0):
			result.append(Board.Direction.RIGHT)
		Vector2i(2, 0):
			result.append(Board.Direction.LEFT)
			result.append(Board.Direction.LEFT)
		Vector2i(1, 0):
			result.append(Board.Direction.LEFT)
		Vector2i(0, -2):
			result.append(Board.Direction.DOWN)
			result.append(Board.Direction.DOWN)
		Vector2i(0, -1):
			result.append(Board.Direction.DOWN)
		Vector2i(0, 2):
			result.append(Board.Direction.UP)
			result.append(Board.Direction.UP)
		Vector2i(0, 1):
			result.append(Board.Direction.UP)
	result.append(Board.get_next_direction(Board.Direction.UP, get_rotation_count()))
	return result


func activate(_citizen: Citizen) -> void:
	pass