314 lines
9.9 KiB
Rust
314 lines
9.9 KiB
Rust
use std::env::args;
|
|
use std::io::stdout;
|
|
use std::io::Write;
|
|
use std::thread::sleep;
|
|
use std::time::Duration;
|
|
|
|
use chrono::Local;
|
|
use chrono::Timelike;
|
|
|
|
use rand::thread_rng;
|
|
use rand::Rng;
|
|
|
|
use pixelfoo::color::Color;
|
|
use pixelfoo::point2d::p2d;
|
|
use pixelfoo::point2d::Point2d;
|
|
use pixelfoo::vec2d::v2d;
|
|
use pixelfoo::vec2d::Vec2d;
|
|
|
|
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
|
enum Square {
|
|
Unused,
|
|
Unknown { prio: i32 },
|
|
Corridor,
|
|
Wall,
|
|
Start,
|
|
Finish,
|
|
}
|
|
|
|
impl Square {
|
|
pub fn is_unknown(&self) -> bool {
|
|
match self {
|
|
Square::Unknown { .. } => true,
|
|
_ => false,
|
|
}
|
|
}
|
|
}
|
|
|
|
struct Board(Vec<Vec<Square>>);
|
|
|
|
fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
|
|
for line in &board.0 {
|
|
for square in line {
|
|
let c = match square {
|
|
Square::Unused => Color::black(),
|
|
Square::Unknown { prio } => {
|
|
if *prio == 0 {
|
|
Color::black()
|
|
} else if *prio < 0 {
|
|
Color::lightblue()
|
|
} else {
|
|
Color::darkyellow()
|
|
}
|
|
}
|
|
Square::Corridor => Color::yellow(),
|
|
Square::Wall => Color::darkblue(),
|
|
Square::Start => Color::red(),
|
|
Square::Finish => Color::green(),
|
|
};
|
|
w.write_all(&c.rgb())?;
|
|
}
|
|
}
|
|
w.flush()
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
|
enum Orientation {
|
|
Horizontal,
|
|
Vertical,
|
|
}
|
|
|
|
impl Board {
|
|
fn new(board_size: Vec2d, maze_size: Vec2d) -> Board {
|
|
Board(
|
|
(0..board_size.y)
|
|
.map(move |y| {
|
|
(0..board_size.x)
|
|
.map(|x| {
|
|
if x < maze_size.x && y < maze_size.y {
|
|
if x == 0
|
|
|| x == maze_size.x - 1
|
|
|| y == 0
|
|
|| y == maze_size.y - 1
|
|
|| (x % 2 == 0 && y % 2 == 0)
|
|
{
|
|
Square::Wall
|
|
} else {
|
|
Square::Unknown { prio: 0 }
|
|
}
|
|
} else {
|
|
Square::Unused
|
|
}
|
|
})
|
|
.collect::<Vec<_>>()
|
|
})
|
|
.collect::<Vec<_>>(),
|
|
)
|
|
}
|
|
fn get(&self, pos: Point2d) -> Square {
|
|
self.0[pos.y as usize][pos.x as usize]
|
|
}
|
|
fn set(&mut self, pos: Point2d, sq: Square) {
|
|
self.0[pos.y as usize][pos.x as usize] = sq;
|
|
}
|
|
|
|
fn set_orientation(&mut self, desired: Orientation, pos: Point2d) {
|
|
let sq = self.get(pos);
|
|
match sq {
|
|
Square::Unknown { .. } => {
|
|
let prio;
|
|
if pos.x % 2 == 0 && pos.y % 2 != 0 {
|
|
// horizontal corridor, vertical wall
|
|
prio = if desired == Orientation::Horizontal {
|
|
10
|
|
} else {
|
|
-10
|
|
};
|
|
} else if pos.x % 2 != 0 && pos.y % 2 == 0 {
|
|
// vertical corridor, horizontal wall
|
|
prio = if desired == Orientation::Vertical {
|
|
10
|
|
} else {
|
|
-10
|
|
};
|
|
} else {
|
|
// always corridor at the end
|
|
prio = 0;
|
|
}
|
|
self.set(pos, Square::Unknown { prio });
|
|
}
|
|
_ => (),
|
|
}
|
|
}
|
|
fn set_horizontal(&mut self, pos: Point2d) {
|
|
self.set_orientation(Orientation::Horizontal, pos);
|
|
}
|
|
fn set_vertical(&mut self, pos: Point2d) {
|
|
self.set_orientation(Orientation::Vertical, pos);
|
|
}
|
|
fn draw_horizontal_segment(&mut self, pos: Point2d, size: Vec2d) {
|
|
for x in 0..size.x {
|
|
let xn = size.x - 1 - x;
|
|
self.set_horizontal(pos + v2d(x, 0));
|
|
for y in 1..x.min(xn).min(size.y / 2) + 1 {
|
|
self.set_horizontal(pos + v2d(x, y));
|
|
self.set_horizontal(pos + v2d(x, -y));
|
|
}
|
|
}
|
|
}
|
|
fn draw_vertical_segment(&mut self, pos: Point2d, size: Vec2d) {
|
|
for y in 0..size.y {
|
|
let yn = size.y - 1 - y;
|
|
self.set_vertical(pos + v2d(0, y));
|
|
for x in 1..y.min(yn).min(size.x / 2) + 1 {
|
|
self.set_vertical(pos + v2d(x, y));
|
|
self.set_vertical(pos + v2d(-x, y));
|
|
}
|
|
}
|
|
}
|
|
fn draw_7_segments(&mut self, pos: Point2d, size: Vec2d, segments: u8) {
|
|
let length = size.x;
|
|
let width = size.y;
|
|
let delta = length + 1;
|
|
let hsize = v2d(length, width);
|
|
let vsize = v2d(width, length);
|
|
if (segments & (1 << 0)) != 0 {
|
|
self.draw_horizontal_segment(pos + v2d(1, 0), hsize);
|
|
}
|
|
if (segments & (1 << 1)) != 0 {
|
|
self.draw_vertical_segment(pos + v2d(delta, 1), vsize);
|
|
}
|
|
if (segments & (1 << 2)) != 0 {
|
|
self.draw_vertical_segment(pos + v2d(delta, delta + 1), vsize);
|
|
}
|
|
if (segments & (1 << 3)) != 0 {
|
|
self.draw_horizontal_segment(pos + v2d(1, 2 * delta), hsize);
|
|
}
|
|
if (segments & (1 << 4)) != 0 {
|
|
self.draw_vertical_segment(pos + v2d(0, delta + 1), vsize);
|
|
}
|
|
if (segments & (1 << 5)) != 0 {
|
|
self.draw_vertical_segment(pos + v2d(0, 1), vsize);
|
|
}
|
|
if (segments & (1 << 6)) != 0 {
|
|
self.draw_horizontal_segment(pos + v2d(1, delta), hsize);
|
|
}
|
|
}
|
|
fn draw_digit(&mut self, pos: Point2d, size: Vec2d, digit: u8) {
|
|
let segment_table = vec![0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f];
|
|
let segments = segment_table[digit as usize];
|
|
self.draw_7_segments(pos, size, segments);
|
|
}
|
|
}
|
|
|
|
struct Move {
|
|
from: Point2d,
|
|
dir: Vec2d,
|
|
prio: i32,
|
|
}
|
|
|
|
fn add_move<R>(board: &Board, open: &mut Vec<Move>, rng: &mut R, from: Point2d, dir: Vec2d)
|
|
where
|
|
R: Rng,
|
|
{
|
|
if let Square::Unknown { prio } = board.get(from + dir) {
|
|
open.push(Move {
|
|
from,
|
|
dir,
|
|
prio: prio * 100 + rng.gen_range(0, 1000),
|
|
});
|
|
}
|
|
}
|
|
|
|
const DEFAULT_ARG: isize = 16;
|
|
|
|
fn main() -> std::io::Result<()> {
|
|
let args = args().collect::<Vec<_>>();
|
|
eprintln!("executing {}", args[0]);
|
|
|
|
let x_size = args[1].parse::<usize>().unwrap();
|
|
let y_size = args[2].parse::<usize>().unwrap();
|
|
let arg = args[3].parse::<isize>().unwrap_or(DEFAULT_ARG);
|
|
eprintln!("screen size {}x{}, arg {}", x_size, y_size, arg);
|
|
|
|
let mut rng = thread_rng();
|
|
|
|
let t_frame = 0.040; // s
|
|
let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
|
|
|
|
let board_size = v2d(x_size as i32, y_size as i32);
|
|
// round down to odd size for maze
|
|
let maze_size = v2d(
|
|
(board_size.x - 1) / 2 * 2 + 1,
|
|
(board_size.y - 1) / 2 * 2 + 1,
|
|
);
|
|
// pick odd position at or near the middle
|
|
let maze_mid = p2d((maze_size.x - 1) / 4 * 2 + 1, (maze_size.y - 1) / 4 * 2 + 1);
|
|
|
|
let mut board = Board(Vec::new());
|
|
let mut open = Vec::new();
|
|
let mut last_drawn_minute = 99;
|
|
loop {
|
|
if open.is_empty() {
|
|
// get time
|
|
let dt = Local::now();
|
|
let h = dt.hour();
|
|
let m = dt.minute();
|
|
|
|
if m != last_drawn_minute {
|
|
last_drawn_minute = m;
|
|
|
|
board = Board::new(board_size, maze_size);
|
|
|
|
// draw time in prios
|
|
let segment_size = v2d(11, 5);
|
|
board.draw_digit(p2d(6, 8), segment_size, (h / 10) as u8);
|
|
board.draw_digit(p2d(24, 8), segment_size, (h % 10) as u8);
|
|
board.draw_digit(p2d(42, 8), segment_size, (m / 10) as u8);
|
|
board.draw_digit(p2d(60, 8), segment_size, (m % 10) as u8);
|
|
|
|
// start in the middle
|
|
board.set(maze_mid, Square::Corridor);
|
|
add_move(&board, &mut open, &mut rng, maze_mid, v2d(1, 0));
|
|
add_move(&board, &mut open, &mut rng, maze_mid, v2d(0, 1));
|
|
add_move(&board, &mut open, &mut rng, maze_mid, v2d(-1, 0));
|
|
add_move(&board, &mut open, &mut rng, maze_mid, v2d(0, -1));
|
|
}
|
|
}
|
|
|
|
// draw maze
|
|
let work = arg.max(1);
|
|
let mut count = 0;
|
|
while !open.is_empty() && count < work {
|
|
open.sort_unstable_by(|Move { prio: pa, .. }, Move { prio: pb, .. }| pa.cmp(pb));
|
|
let Move {
|
|
from: p0,
|
|
dir: dir0,
|
|
..
|
|
} = open.pop().unwrap();
|
|
|
|
let p1 = p0 + dir0;
|
|
let p2 = p1 + dir0;
|
|
if board.get(p1).is_unknown() {
|
|
board.set(p1, Square::Corridor);
|
|
board.set(p2, Square::Corridor);
|
|
|
|
for dir1 in Vec2d::directions() {
|
|
let p3 = p2 + dir1;
|
|
let p4 = p3 + dir1;
|
|
if board.get(p3).is_unknown() {
|
|
if board.get(p4).is_unknown() {
|
|
add_move(&board, &mut open, &mut rng, p2, dir1);
|
|
} else {
|
|
board.set(p3, Square::Wall);
|
|
}
|
|
}
|
|
}
|
|
|
|
count += 1;
|
|
}
|
|
|
|
if open.is_empty() {
|
|
board.set(p2d(1, 1), Square::Start);
|
|
board.set(p2d(maze_size.x - 2, maze_size.y - 2), Square::Finish);
|
|
}
|
|
}
|
|
|
|
let mut buf = Vec::with_capacity((board_size.x * board_size.y * 3) as usize);
|
|
send(&mut buf, &board)?;
|
|
stdout().write_all(&buf)?;
|
|
stdout().flush()?;
|
|
sleep(delay);
|
|
}
|
|
}
|