dib

I'm making a puzzle game, where you connect water pipes into loops and they queue_free() when they're in a loop.

Clicking a pipe rotates it by 90 degrees, as shown in the above picture's green arrows. The main scene contains the pipe Area2D scenes ( pipestraight, pipebend, pipetshape, and a pipecross). The pipes all have empty and full (of water) Sprite2Ds that trigger when each pipe's end touches the next pipe's Area2D and its respective CollisionPolygon2D.

The idea: the bigger the loop of full pipes, the loop queue_free()s and the more points you get.

My problem is having Godot understand that I have a loop. I know I need to use arrays somehow to combine them into a loop, but I'm not sure how.

I have everything on lockdown until the _on_area_entered_ function. Below is my code:

extends Area2D

@onready var empty: Sprite2D = $Empty
@onready var full: Sprite2D = $Full
@onready var connected_pipes = []

func _ready() -> void:
	area_entered.connect(_on_area_entered)
	area_exited.connect(_on_area_exited)
	
func _process(_delta: float) -> void:
	if has_overlapping_areas():
		fill_pipe()
	else:
		empty_pipe()
	
func _input(event):
	if event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
		print(connected_pipes)
		if empty.get_rect().has_point(to_local(event.position)):
			rotate_pipe()

func rotate_pipe():
	rotation_degrees += 90

func _on_area_entered(area: Area2D) -> void:
	if area not in connected_pipes:
		var adjacent_pipes = get_overlapping_areas()
		if area not in connected_pipes:
			connected_pipes.append(area)
		for adjacent_pipe in adjacent_pipes:
			if adjacent_pipe not in connected_pipes:
				connected_pipes.append(adjacent_pipes)


func _on_area_exited(area: Area2D) -> void:
		if area in connected_pipes:
			connected_pipes.erase(area)

func fill_pipe():
		empty.hide()
		full.show()
		
func empty_pipe():
		empty.show()
		full.hide()

Any help is appreciated!