gistfile1.rs

use std::io::File;
use std::io::BufferedReader;
use std::rc::Rc;
use std::cell::RefCell;
use std::cell::Cell;

struct Vertex {
	x: f64,
	y: f64,
	z: f64,
}

struct Face {
	a: Rc<Cell<Vertex>>,
	b: Rc<Cell<Vertex>>,
	c: Rc<Cell<Vertex>>,
	d: Rc<Cell<Vertex>>,
}

fn parse_line(line: &str) {
	let first_character = line.chars().next();
	match first_character {
		Some('#') => println!("Comment"),
		Some('v') => println!("Vertex"),
		Some('s') => println!("Shading"),
		Some('f') => println!("Face"),
		Some(x)   => println!("Unknown {}" , x),
		None      => ()
	}
}

fn main() {
	let v = Rc::new(Cell::new(
			Vertex {
				x:1.5,
				y:1.5,
				z:1.5}));
	let x = Face {
		a:v.clone(),
		b:v.clone(),
		c:v.clone(),
		d:v.clone()};
	println!("{}",x.a.get().x);
	x.a.set(
		Vertex{x:3.0,y:3.0,z:3.0});
		// Is there a way to set a field of the Vertex instead of setting a new Vertex?
	println!("{}",x.a.get().x);
}