extends Area2D

var direction = Vector2()

const DEG_UP = 0
const DEG_RIGHT = 90
const DEG_DOWN = 180
const DEG_LEFT = 270

const DEG_LIST = [DEG_UP, DEG_RIGHT, DEG_DOWN, DEG_LEFT]

const DIR_UP = 0
const DIR_RIGHT = 1
const DIR_DOWN = 2
const DIR_LEFT = 3

var posix
var posiy

var dirx = 0
var diry = 0

var dire = DIR_UP

var grid

var is_moving = false

var tween

var target_pos = Vector2()
var blocks = []
var is_blocked:bool = false

var rayFront
var rayLeft
var rayRight

func _ready():
	grid = get_parent()
	
	posix = int (position.x / 64)
	posiy = int (position.y / 64)

	turn(DIR_UP)

	tween = $Tween
	tween.connect_into(self)

	rayFront = $RayFront
	rayLeft = $RayLeft
	rayRight = $RayRight

func _physics_process(delta):

	if Input.is_action_pressed("ui_left"):
		if !is_moving:
			dire -= 1
			if dire < 0:
				dire = 3

			tween.rotate_char(self, rotation_degrees - 90)
			is_moving = true

	elif Input.is_action_pressed("ui_right"):
		if !is_moving:
			dire += 1
			if dire > 3:
				dire = 0

			tween.rotate_char(self, rotation_degrees + 90)
			is_moving = true

	if Input.is_action_pressed("ui_up"):

		turn(dire)

		if !is_moving and !rayFront.is_colliding():
			posix += dirx
			posiy += diry

			target_pos = Vector2(posix * 64 + 32, posiy * 64 + 32)
			tween.move_char(self, target_pos)
			is_moving = true


func _on_tween_completed(o, k):
	is_moving = false

func turn(dir:int):
	dirx = 0
	diry = 0
	if dir == DIR_UP:
		diry -= 1
	elif dir == DIR_RIGHT:
		dirx += 1
	elif dir == DIR_DOWN:
		diry += 1
	else:
		dirx -= 1