use godot::classes::{AnimatedSprite2D, IRigidBody2D, RigidBody2D};
use godot::prelude::*;

#[derive(GodotClass)]
#[class(base=RigidBody2D)]
pub struct Mob {
  // required
  base: Base<RigidBody2D>,
}

#[godot_api]
impl IRigidBody2D for Mob {
  fn init(base: Base<RigidBody2D>) -> Self {
    Self { base }
  }

  fn ready(&mut self) {
    self
      .signals()
      .body_exited()
      .connect_self(Self::on_visible_on_screen_notifier_2d_screen_exited);

    let mut animated_sprite_2d = self.base().get_node_as::<AnimatedSprite2D>("AnimatedSprite2D");
    let types = animated_sprite_2d
      .get_sprite_frames()
      .expect("failed to get sprite frames??")
      .get_animation_names();

    let animation = Array::from(&types).pick_random().expect("no animations found");

    animated_sprite_2d.set_animation(animation.stringify().arg());
    animated_sprite_2d.play();
  }
}

#[godot_api]
impl Mob {
  fn on_visible_on_screen_notifier_2d_screen_exited(&mut self, _body: Gd<Node>) {
    self.base_mut().queue_free();
  }
}