extends CharacterBody2D

var gravity = 800
const SPEED = 200.0
const JUMP_VELOCITY = -400.0
@onready var sprite = $Sprites

var land_time = 0
var jumping = false
var side = 1
var double_jump = false

enum State {
	Idle,
	Run,
	Walk,
	Jump,
	AirSpin,
	Landing
}

enum JumpState {
}

func _play_anim(state: State, velocity: Vector2):
	match state:
		State.Idle:
			sprite.play("Idle")
		State.Run:
			sprite.play("Run")
		State.Walk:
			sprite.play("Walk")
		State.Jump:
			sprite.pause()
			sprite.set_frame_and_progress(0, 0)
			if velocity.y > 50:
				sprite.set_frame_and_progress(2,0)
			elif velocity.y > -150:
				sprite.set_frame_and_progress(1, 0)
		State.AirSpin:
			pass
		State.Landing:
			sprite.play("Land")

func _process_velocity(state: State, delta):
	pass

func _physics_process(delta):
	if not is_on_floor():
		velocity.y += gravity * delta
	elif jumping:
		jumping = false
		sprite.play("Land")
		double_jump = false
		land_time = 0.16

	if Input.is_action_just_pressed("ui_accept"):
		if is_on_floor():
			velocity.y = JUMP_VELOCITY
			sprite.play("Jump")
			jumping = true
			sprite.pause()
			sprite.set_frame_and_progress(0, 0)
		elif not double_jump:
			sprite.play("AirSpin")
			double_jump = true
			var boost = 0 if velocity.y > 0 else velocity.y / 3
			velocity.y = JUMP_VELOCITY / 1.4 + boost

	if jumping and not double_jump:
		if velocity.y > 50:
			sprite.set_frame_and_progress(2,0)
		elif velocity.y > -150:
			sprite.set_frame_and_progress(1, 0)

	var speed = SPEED
	if Input.is_key_pressed(KEY_SHIFT):
		speed /= 3
	var direction = Input.get_axis("left", "right")
	if direction:
		velocity.x = direction * speed
	else:
		velocity.x = move_toward(velocity.x, 0, speed)
	if direction != 0:
		sprite.flip_h = direction == -1

	if land_time >= 0:
		land_time -= delta

	# If shift left/right then 2 * speed, play run
	if land_time <= 0 and not jumping:
		if velocity.x != 0:
			if Input.is_key_pressed(KEY_SHIFT):
				sprite.play("Walk")
			else:
				sprite.play("Run")
		else:
			sprite.play("Idle")

	move_and_slide()