extends Node2D
const EFFECT := preload("res://scripts/game/enemy_destruction_effect.gd")
const SHIPS := preload("res://scripts/items/alien_ship_catalog.gd")

func _ready() -> void:
	RenderingServer.set_default_clear_color(Color("070e1c"))
	get_window().size = Vector2i(1280,900)
	get_window().content_scale_size = Vector2i(1280,900)
	var rng := RandomNumberGenerator.new()
	rng.seed = 18
	for index in 250:
		var star := Polygon2D.new()
		star.polygon = PackedVector2Array([Vector2(-0.6,0),Vector2(0,-0.6),Vector2(0.6,0),Vector2(0,0.6)])
		star.position = Vector2(rng.randf()*1280,rng.randf()*900)
		star.color = Color(0.65,0.8,1,rng.randf_range(0.1,0.5))
		add_child(star)
	label_at("ROZERWANIE KADŁUBA / EKSPLOZJE WROGÓW",Vector2(35,20),22)
	for tier in 3:
		label_at(["ZWYKŁY STATEK","ELITA","BOSS"][tier],Vector2(100+tier*410,75),16)
		for row in 3:
			var sprite := Sprite2D.new()
			sprite.texture = SHIPS.TEXTURES[tier*4]
			sprite.scale = Vector2.ONE * [56.0,68.0,112.0][tier] / maxf(sprite.texture.get_width(),sprite.texture.get_height())
			sprite.position = Vector2(210+tier*410,215+row*245)
			add_child(sprite)
			var effect := Node2D.new()
			effect.set_script(EFFECT)
			effect.play_audio = false
			effect.configure(sprite,Vector2.ZERO,tier)
			add_child(effect)
			effect.set_process(false)
			effect._elapsed = [0.07,0.3,0.9][row]
			effect._update_fireballs()
			effect.queue_redraw()
			sprite.queue_free()
			label_at(["Błysk · 0,07 s","Fala i ogień · 0,30 s","Odłamki · 0,90 s"][row],Vector2(110+tier*410,320+row*245),13)
	if "--capture" in OS.get_cmdline_user_args():
		await get_tree().process_frame
		await RenderingServer.frame_post_draw
		get_viewport().get_texture().get_image().save_png("res://artifacts/enemy_explosion_preview.png")
		print("EXPLOSION_PREVIEW_CAPTURED")
		get_tree().quit()

func label_at(value: String, origin: Vector2, font_size: int) -> void:
	var label := Label.new()
	label.text = value
	label.position = origin
	label.add_theme_font_size_override("font_size",font_size)
	label.modulate = Color("a8becf")
	add_child(label)