gol.rs

	fn on_render(&mut self, window: &mut PistonWindow, ren: RenderArgs, e: Event) {
		let fps = self.fps_counter.tick();
		let ref front = self.front;

		window.draw_2d(&e, |c, g| {
			let rect = Rectangle::new(color::BLACK);
			clear(color::WHITE, g);

			let mut i = 0;
			let mut bounds = [0.0, 0.0, SIZE, SIZE];
			for y in 0..self.height {
				for x in 0..self.width {
					if front.get(i).unwrap() {
						bounds[0] = x as f64 * SIZE;
						bounds[1] = y as f64 * SIZE;
						rect.draw(bounds, &c.draw_state, c.transform, g);
					}
					i += 1;
				}
			}
			// disabled to bench rect drawing
			//GRID.draw(&LINE, &c.draw_state, c.transform, g)
		});

		println!("fps: {}", fps);
	}