extends Control

const NodesHelpers = preload("res://helpers/nodes.gd")

signal unit_created(unit)
signal turn_end

export var attack = false
var cards = []

func add_card(card):
	""" Add a card to the hand
	"""
	cards.append(card)
	NodesHelpers.set_parent(card, self)
	card.connect("played", self, "on_card_played")

func get_card_count():
	""" Get the number of cards in hand
	"""
	return len(cards)

func rearrange():
	""" Rearrange visually the cards in hand
	"""
	var cardcount = len(cards)
	if cardcount:
		var i = 0
		var cardwidth = cards[0].get_size().x
		var spacing = (rect_size.x - cardwidth * cardcount) / (cardcount + 1)
		for card in cards:
			card.set_hand_location(Vector2((i + 1) * (cardwidth + spacing) - cardwidth, 0))
			i += 1

func on_card_played(card, anchor, unit):
	""" Called when a card is played
	"""
	card.queue_free()
	cards.erase(card)
	rearrange()
	if unit:
		emit_signal("unit_created", unit)
	emit_turn_end()

func emit_turn_end():
	emit_signal("turn_end")