extends CharacterBody2D

const TILE_SIZE = 16
@onready var ray = $RayCast
@onready var animation_tree = $AnimationTree
@onready var animation_state = animation_tree["parameters/playback"] as AnimationNodeStateMachinePlayback

const DIRECTIONS = {
	"right": Vector2(1, 0),
	"left": Vector2(-1, 0),
	"down": Vector2(0, 1),
	"up": Vector2(0, -1)
}

var direction_history = []
var input_direction = Vector2.ZERO
var initial_position = Vector2.ZERO
var is_moving = false
var is_running = false
var percent_moved_to_next_tile = 0.0
@export var walk_speed = 4.0
@export var run_speed = 8.0
@export var can_move : bool = true

func _ready():
	initial_position = position

func _physics_process(delta):
	process_player_input()
	if is_moving and can_move:
		move(delta)
		update_animation(input_direction, true)
	else:
		update_animation(input_direction, false)

func process_player_input():
	for direction in DIRECTIONS.keys():
		if Input.is_action_just_pressed(direction):
			direction_history.append(direction)
		elif Input.is_action_just_released(direction):
			direction_history.erase(direction)

	input_direction = Vector2.ZERO
	if direction_history.size() > 0:
		var last_direction = direction_history[direction_history.size() - 1]
		input_direction = DIRECTIONS[last_direction]

	is_running = Input.is_action_pressed("run")
	initial_position = position
	ray.target_position = input_direction * TILE_SIZE
	ray.force_raycast_update()
	if not ray.is_colliding():
		is_moving = true
	else:
		input_direction = Vector2.ZERO
		is_moving = false

func move(delta):
	var speed = is_running ? run_speed : walk_speed
	percent_moved_to_next_tile += speed * delta
	if percent_moved_to_next_tile >= 1.0:
		position = initial_position + (TILE_SIZE * input_direction)
		percent_moved_to_next_tile = 0.0
		is_moving = false
		direction_history.clear()  # Limpa o histórico após mover um tile
	else:
		position = initial_position + (TILE_SIZE * input_direction * percent_moved_to_next_tile)

func update_animation(direction, is_moving):
	if is_running and is_moving:
		animation_state.travel("run")
		animation_tree.set("parameters/run/blend_position", direction)
	elif is_moving:
		animation_state.travel("Walk")
		animation_tree.set("parameters/Walk/blend_position", direction)
	else:
		animation_state.travel("idle")
		animation_tree.set("parameters/idle/blend_position", direction)