extends Node2D

# Preview, not a test - #52's "visually distinguishable from a chaser"
# acceptance criterion. Same setup shape as _sniper_vs_chaser_preview.gd -
# see that file's header note for why setup is deferred to the first
# _process() tick and the tree gets paused once everything is placed.
#
#   bash tests/screenshot.sh res://tests/_turret_vs_chaser_preview.tscn /tmp/turret.png 20 720x1280

var main: Node
var setup_done: bool = false


func _ready() -> void:
	GameState.buildings.clear()
	GameState.extractors.clear()
	GameState.transporters.clear()
	main = load("res://Main.tscn").instantiate()
	add_child(main)
	main.get_node("BackgroundLayer").visible = false
	main.get_node("AsteroidField").visible = false
	main.get_node("PlanetField").visible = false
	main.get_node("BuildingField").visible = false
	main.get_node("EnemySpawner").set_process(false)
	main.get_node("AsteroidField").set_process(false)


func _process(_delta: float) -> void:
	if setup_done:
		return
	setup_done = true

	var fleet: Node = main.get_node("Fleet")
	for ship in fleet.ships:
		if is_instance_valid(ship):
			ship.set_physics_process(false)
	fleet.spawn_ships(0, Vector2.ZERO)
	for ship in fleet.ships:
		if is_instance_valid(ship):
			ship.set_physics_process(false)
			ship.queue_free()
	fleet.ships.clear()
	for projectile in get_tree().get_nodes_in_group("player_projectiles"):
		projectile.queue_free()

	var chaser: Node = load("res://Enemy.tscn").instantiate()
	chaser.enemy_id = "chaser"
	chaser.position = Vector2(-160, -80)
	main.add_child(chaser)
	chaser.speed = 0.0

	var turret: Node = load("res://Enemy.tscn").instantiate()
	turret.enemy_id = "turret_spawner"
	turret.position = Vector2(160, -80)
	main.add_child(turret)

	var camera: Camera2D = main.get_node("Camera2D")
	camera.zoom = Vector2(1.4, 1.4)

	get_tree().paused = true