extends CharacterBody2D

@onready var tile_map: TileMap = get_parent()
@onready var animation_player = $AnimationPlayer
@export var speed = 80
var y_spawn_offset = -8
var is_moving = false
var destination: Vector2 = Vector2.ZERO


func _ready():
	var spawn_cell: Vector2i = tile_map.get_top_spawn_cell()
	position = tile_map.map_to_local(spawn_cell)
	position.y += y_spawn_offset

func _process(_delta):
	if is_moving:
		animation_player.play("walk")
	else:
		animation_player.stop()

func _physics_process(delta):
	move_to_rand_cell(delta)

func move_to_rand_cell(delta):
	if !is_moving:
		var rand_cell: Vector2i = tile_map.get_random_top_cell()
		tile_map.set_cell(0, Vector2i(rand_cell.x, rand_cell.y), 1, Vector2i(0, 0), 0) # debug purpose
		destination = tile_map.map_to_local(rand_cell)
		destination.y += y_spawn_offset
		
		is_moving = true
	position = position.move_toward(destination, delta * speed)
	
	if position == destination:
		is_moving = false