DreamBall/levels/level.gd

class_name Level
extends Node3D

signal ring_collected
signal completed

## Lowercase, spaceless name of the level
var id: String
var thumbnail: CompressedTexture2D
var music: Music
var rings: Array[Ring] = []
var finished_rings_count: int = 0
var velocity: float = 0.0

func _init() -> void:
	assert(len(id) > 0, self.name + " has no id!")

func _ready() -> void:
	var children = get_children()
	for child in children:
		if is_instance_of(child, Music):
			music = child
	assert(is_instance_valid(music), self.name + " has no music!")
	
	var rings_node = get_node("Rings")
	assert(is_instance_valid(rings_node), self.name + " has no Rings node!")
	var rings_node_children = rings_node.get_children()
	for ring in rings_node_children:
		if is_instance_of(ring, Ring):
			rings.push_back(ring)
			ring.connect("collect_signal", collect_ring)

func collect_ring():
	finished_rings_count = len(rings.filter(func(ring: Ring): return ring.collected))
	ring_collected.emit()
	
	if finished_rings_count >= len(rings):
		completed.emit()