#![feature(allocator_api)]
#![deny(warnings)]
#![windows_subsystem = "windows"]
use std::cmp::{min, max};
use tuifw_screen::{Bg, Fg, Screen, Point, Vector, Event, Key};
#[allow(clippy::redundant_clone)]
fn draw_box(screen: &mut dyn Screen, p: &mut Point) {
if screen.size().y < 9 { return; }
p.y = min(max(p.y, 4), screen.size().y - 5);
if p.y < 0 { return; }
let w = 0 .. screen.size().x;
screen.out(p.offset(Vector { x: -6, y: -4 }), Fg::Green, Bg::None,
" ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: -3 }), Fg::Green, Bg::None,
" ╔═══════════╗ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: -2 }), Fg::Green, Bg::None,
" ║ ↑ ║ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: -1 }), Fg::Green, Bg::None,
" ║ k ║ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: 0 }), Fg::Green, Bg::None,
" ║ ←h l→ ║ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: 1 }), Fg::Green, Bg::None,
" ║ j ║ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: 2 }), Fg::Green, Bg::None,
" ║ ↓ ║ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -7, y: 3 }), Fg::Green, Bg::None,
" ╚═══════════╝ ", w.clone(), w.clone()
);
screen.out(p.offset(Vector { x: -6, y: 4 }), Fg::Green, Bg::None,
" ", w.clone(), w.clone()
);
}
fn main() {
let mut screen = unsafe { tuifw_screen::init(None, None) }.unwrap();
let screen = screen.as_mut();
let mut p = Point { x: screen.size().x / 2, y: screen.size().y / 2 };
draw_box(screen, &mut p);
loop {
if let Some(e) = screen.update(None, true).unwrap() {
if let Some((m, n, d)) = match e {
Event::Key(n, Key::Left) | Event::Key(n, Key::Char('h')) =>
Some((2, n, Vector { x: -1, y: 0 })),
Event::Key(n, Key::Right) | Event::Key(n, Key::Char('l')) =>
Some((2, n, Vector { x: 1, y: 0 })),
Event::Key(n, Key::Up) | Event::Key(n, Key::Char('k')) =>
Some((1, n, Vector { x: 0, y: -1 })),
Event::Key(n, Key::Down) | Event::Key(n, Key::Char('j')) =>
Some((1, n, Vector { x: 0, y: 1 })),
Event::Key(_, Key::Escape) => break,
_ => None,
} {
for _ in 0 .. m {
for _ in 0 .. n.get() {
p = p.offset(d);
draw_box(screen, &mut p);
}
}
}
}
}
}