use godot::prelude::*;

#[derive(GodotClass)]
#[class(base=Node3D, init, tool)]
pub struct Arrow {
    #[export]
    mesh: Option<Gd<Node3D>>,
    elapsed: f64,

    base: Base<Node3D>,
}

#[godot_api]
impl INode3D for Arrow {
    fn process(&mut self, delta: f64) {
        self.elapsed += delta;

        let global_pos = self.base().get_global_position();
        if let Some(mesh) = &mut self.mesh {
            mesh.set_global_position(
                global_pos
                    + Vector3::UP * 2.
                    + Vector3::UP * (self.elapsed * 2.).sin() as f32 / 10.,
            );
            mesh.set_global_rotation(Vector3::UP * self.elapsed as f32);
        }
    }
}