extends Node2D


var circles = []

# Called when the node enters the scene tree for the first time.
func _ready():
	generate()

func add_circle (pos, radius, color):
	circles.append ([pos, radius, color])
	
func render_recursive (pos, radius, count):
	add_circle (pos, radius, "#888888")
	
	for i in range (count):
		var angle = rand_range(0, 2 * PI)
		var dist_scale = rand_range (0.9, 1.8)
		var coord = Vector2 (cos(angle), sin(angle)) * radius * dist_scale
		render_recursive (pos + coord, radius * 0.6, count - 1)

func generate():
	var start = OS.get_window_safe_area().size * 0.5
	var radius = 100
	
	circles.clear()
	render_recursive (start, radius, get_node("HBoxContainer/IterationsSpinBox").value)
	
	var angle = rand_range(0, 2 * PI)
	var coord = Vector2 (cos(angle), sin(angle)) * radius * 3
	render_recursive (start + coord, 70, get_node("HBoxContainer/IterationsSpinBox").value)
	render_recursive (start + coord * 2, 60, get_node("HBoxContainer/IterationsSpinBox").value)
	
	update()
	
	get_node("blur").texture = get_viewport().get_texture()
#	get_node("pixelate").texture = get_viewport().get_texture()

func _draw():
	for c in circles:
		draw_circle (c[0], c[1], c[2])

func _on_Button_pressed():
	generate()