prototty_elements 0.7.0

extern crate prototty;
extern crate prototty_elements;
extern crate cgmath;
extern crate ansi_colour;

use cgmath::Vector2;
use prototty::*;
use prototty_elements::elements::*;
use ansi_colour::colours;

const ESCAPE: char = '\u{1b}';
const ETX: char = '\u{3}';
const WIDTH: u16 = 10;
const HEIGHT: u16 = 10;

fn main() {

    let mut canvas = Canvas::new((WIDTH, HEIGHT));
    let mut ctx = Context::new().unwrap();

    let mut current_coord = Vector2::new(0, 0);

    loop {

        for (coord, cell) in canvas.enumerate_mut() {
            if coord == current_coord {
                cell.background_colour = colours::RED;
            } else {
                cell.background_colour = colours::WHITE;
            }
        }

        ctx.render(&canvas).unwrap();

        let direction = match ctx.wait_input().unwrap() {
            Input::Char(ESCAPE) | Input::Char(ETX) => break,
            Input::Left => Vector2::new(-1, 0),
            Input::Right => Vector2::new(1, 0),
            Input::Up => Vector2::new(0, -1),
            Input::Down => Vector2::new(0, 1),
            _ => continue,
        };

        let new_coord = current_coord + direction;
        if new_coord.x < 0 || new_coord.y < 0 || new_coord.x >= WIDTH as i16 || new_coord.y >= HEIGHT as i16 {
            continue;
        }

        current_coord = new_coord;
    }
}