extends Area

class_name Stack

signal hover()
signal blur()
signal card_picked(card)

export var title: String
export var zoneName: String
export var faceDown: bool
export var editable: bool
export var offset: float

var clicked: bool = false
var cards: Array = []

func _ready():
	set_title(title)

func set_title(title: String):
	$LabelViewport/Label.text = title

func _mouse_entered():
	emit_signal("hover")

func _mouse_exited():
	emit_signal("blur")

func push_card(card):
	# Disable collider for top card
	if cards.size() > 0:
		cards[0].disableInput()
	cards.push_front(card)
	reorder_cards()

func pop_card() -> Card:
	if cards.size() < 1:
		return null
	var card: Card = cards.pop_front()
	reorder_cards()
	if cards.size() > 0:
		cards[0].enableInput()
	return card

const CARD_DISTANCE = 0.01

func reorder_cards():
	var i := 0
	var count := cards.size()
	for card in cards:
		card.translation.y = offset+(count-i)*CARD_DISTANCE
		i += 1