banana.rs

extern crate minifb;

use minifb::{Key, Scale};

const WIDTH: usize = 360;
const HEIGHT: usize = 360;

const PIXSIZE: usize = 4;

const PIXEL: [u32; PIXSIZE * PIXSIZE] = [
    0x000000, 0x000000, 0xffffff, 0xffffff,
    0x000000, 0x000000, 0xffffff, 0xffffff,
    0xffffff, 0xffffff, 0x000000, 0x000000,
    0xffffff, 0xffffff, 0x000000, 0x000000,
];

fn main() {
    let mut buffer: Vec<u32> = vec![0; WIDTH * HEIGHT];

    let mut window = match minifb::Window::new("Test - ESC to exit", WIDTH, HEIGHT, Scale::X1) {
        Ok(win) => win,
        Err(err) => {
            panic!("Unable to create window {}", err);
        }
    };

    while window.is_open() && !window.is_key_down(Key::Escape) {
        for (index, i) in buffer.iter_mut().enumerate() {
            let line = (index % WIDTH) % PIXSIZE;
            let column = index % PIXSIZE;
            let x : u32 = PIXEL[line + column];
            *i = x;
        }

        window.update(&buffer);
    }
}