extends ProjectileBase

var enemies_hit = 0

    
func _ready() -> void:
    speed = 500
    super()
    var first = get_nearest_enemy(global_position)
    if first == null:
        queue_free()
        return
    launch(first.global_position)

func _on_body_entered(body: Node2D) -> void:
    if body.is_in_group("enemies"):
        enemies_hit += 1
        body.hit()
        if enemies_hit == 20:
            queue_free()
        else:
            var next = get_nearest_enemy(global_position, body)
            if next == null:
                queue_free()
            else:
                launch(next.global_position)

func get_nearest_enemy(from: Vector2, exclude: Node = null) -> Node:
    var nearest = null
    var min_distance = INF
    for enemy in get_tree().get_nodes_in_group("enemies"):
        if enemy == exclude or enemy.is_dying:
            continue
        var dist = from.distance_to(enemy.global_position)
        if dist < min_distance:
            min_distance = dist
            nearest = enemy
    return nearest