extends Node2D

var wave_count: int = 0
var enemy_count: int = 0
var enemy = preload("res://scenes/enemy.tscn")

const COLS: int = 9
const ROWS: int = 3

func _ready():
  wave_count += 1
  EventBus.enemy_died.connect(_on_enemy_died)


func spawn_enemies():
    print("Enemy Wave: ", wave_count)
    for x in range(COLS):
      for y in range(ROWS):
            var e = enemy.instantiate()
            var pos = Vector2(x * (16 + 8) + 24, 16 * 4 + y * 16)
            add_child(e)
            e.start(pos)
            enemy_count = ROWS * COLS
            await get_tree().process_frame
            print_debug("Remaining enemies: ", enemy_count, ", ", get_tree().get_nodes_in_group("enemies").size())
    

func _on_enemy_died():
    enemy_count -= 1
    print_debug(enemy_count)
    if enemy_count == 0:
      print_debug("Remaining enemies: ", enemy_count, ", ", get_tree().get_nodes_in_group("enemies").size())
      # win_game()
      await get_tree().create_timer(2).timeout
      wave_count += 1
      spawn_enemies()
    if enemy_count == ROWS * COLS / 2:
        print_debug("Enemy count is 50%")
        update_enemy_aggression(2,10)
        EventBus.goose_talk.emit()
    if enemy_count == ROWS * COLS / 4:
        print_debug("Enemy count is 25%")
        update_enemy_aggression(1,1)

func update_enemy_aggression(low,high):
  var nodes = get_tree().get_nodes_in_group("enemies")

  for node in nodes:
   if node is Area2D:
     node.enemy_move_aggression = randf_range(low,high)
     node.enemy_shoot_aggression = randf_range(low,high)
     node.tween_speed = min(low,high) - .75