class_name Hub
extends Node2D
# User interface to create liners

signal hub_finished

const ACTION_PLAYER_PREFIX = "p"
const ACTION_LEFT_SUFFIX = "_left"
const ACTION_RIGHT_SUFFIX = "_right"
const MAX_PLAYERS = 8

export (Array, Color) var playerColors = [
	Color.red,
	Color.blue,
	Color.green,
	Color.yellow,
	Color.white,
	Color.cyan,
	Color.magenta,
	Color.orange,
]

var _playerScene = preload("res://Scenes/Player.tscn")
var _playerActionsLeft
var _playerActionsRight

var _hub_enabled = true


func _ready():
	_fill_action_arrays()


func _unhandled_input(event):
	if event.is_pressed() and _hub_enabled:
		if event.is_action("ui_accept"):
			if get_tree().get_nodes_in_group("players").size() > 0:
				get_tree().set_input_as_handled()
	
				_hub_enabled = false
				emit_signal("hub_finished")

		elif event.is_action_type():
			for pal in _playerActionsLeft:
				if event.is_action(pal):
					# Create player
					var id = _playerActionsLeft.find(pal)

					var player
					player = _playerScene.instance()
					player.turn_left_action = _playerActionsLeft[id]
					player.turn_right_action = _playerActionsRight[id]
					player.position = Vector2(id * 100.0, 0.0)
					player.modulate = playerColors[id]
					add_child(player)

					get_tree().set_input_as_handled()


func _fill_action_arrays():
	_playerActionsLeft = []
	_playerActionsRight = []
	for k in MAX_PLAYERS:
		_playerActionsLeft.append(ACTION_PLAYER_PREFIX + str(k) + ACTION_LEFT_SUFFIX)
		_playerActionsRight.append(ACTION_PLAYER_PREFIX + str(k) + ACTION_RIGHT_SUFFIX)