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But first, please read +. + diff --git a/src/cli.rs b/src/cli.rs new file mode 100644 index 0000000..a0c83eb --- /dev/null +++ b/src/cli.rs @@ -0,0 +1,245 @@ +use crate::minesweeper::{GameEvent, GameState, Minesweeper, TileModifier, TileState}; +use crate::minesweeper::{GameSettings, Tile}; +use colored::{ColoredString, Colorize}; +use std::error::Error; +use std::time; + +pub enum Action { + Sweep(usize, usize), + Flag(usize, usize), + Question(usize, usize), + Quit, +} + +impl Tile { + fn render(&self) -> ColoredString { + if let Some(modifier) = self.modifier { + if modifier == TileModifier::Flagged { + return "F".bright_red(); + } + } + if !self.swept { + return "?".bright_black(); + } + + match self.state { + TileState::Zero => " ".black(), + TileState::One => "1".bright_blue(), + TileState::Two => "2".green(), + TileState::Three => "3".bright_red(), + TileState::Four => "4".blue(), + TileState::Five => "5".red(), + TileState::Six => "6".cyan(), + TileState::Seven => "7".black(), + TileState::Eight => "8".black(), + TileState::Mine => "X".red(), + } + } +} + +fn format_time(duration: time::Duration) -> String { + format!( + "Time Elapsed = {} │ ", + format!( + "{:0>2}:{:0>2}", + duration.as_secs() / 60, + duration.as_secs() % 60 + ) + .bright_yellow(), + ) +} + +pub fn begin(start_settings: Option) { + let settings = if let Some(s) = start_settings { + s + } else { + if let Ok(a) = get_params() { + a + } else { + GameSettings { + width: 30, + height: 16, + mines: 99, + } + } + }; + let mut game = Minesweeper::new(&settings).unwrap(); + + render(&game); + + // Game Loop + loop { + while let Some(e) = game.events.next() { + match e { + GameEvent::SweepDone + | GameEvent::FlagTile(_, _, _) + | GameEvent::RevealMine(_, _, _) => { + render(&game); + } + _ => (), + } + } + if game.state == GameState::GameOver { + println!("{}", "Game Over!".red()); + break; + } + if game.state == GameState::Victory { + println!("{}", "You Win!".red()); + break; + } + let result = take_input((game.board.width, game.board.height)); + if let Ok(action) = result { + match action { + Action::Sweep(x, y) => { + game.sweep(x, y); + } + Action::Flag(x, y) => { + game.flag(x, y); + } + Action::Quit => { + break; + } + + _ => (), + } + } else if let Err(error) = result { + println!("{}", error); + } + } +} + +pub fn render(game: &Minesweeper) { + print!("{}c", 27 as char); + let y_max_len = (game.board.height + 1).to_string().len(); + print!("{: ^1$}┃", "", y_max_len); + for (x, i) in (0..game.board.width).enumerate() { + print!("{}", x + 1); + if i < 9 && x != game.board.width - 1 { + print!(" ") + } + } + if game.board.width < 9 { + print!(" ") + } + println!("{}", "┃".white()); + + let bar = format!( + "{0}{1:━>y_max_len$}{0}{2:━>3$}", + "━", + "╋", + "┫", + game.board.width * 2 + ) + .white(); + println!("{}", bar); + + for y in 0..game.board.height { + let mut board_line = String::from(""); + + for x in 0..(game.board.width) { + board_line.push_str(&game.board.tiles[x][y].render().to_string()); + board_line.push_str(" "); + } + let line_num = format!("{: ^y_max_len$}", y + 1); + println!("{}{2}{}{2}", line_num, board_line.on_white(), "┃".white()); + } + println!( + "{}", + format!( + "{2}{0:━>y_max_len$}{2}{1:━>dim$}", + "┻", + "┛", + "━", + dim = (game.board.width * 2) + ) + .white() + ); + + if let Some(start_time) = game.start_time { + let elapsed = start_time.elapsed(); + print!("{}", format_time(elapsed)) + } + println!("Commands = x,y: sweep, fx,y: flag, q: quit"); +} + +pub fn get_params() -> Result> { + print!("{}c", 27 as char); + println!("{}", "Input options:".yellow().bold().underline()); + let mut params: [usize; 3] = [16, 16, 40]; + let default_msg = "Press Enter for default"; + let param_name = ["Width:", "Height:", "Number of Mines:"]; + for (i, _) in param_name.iter().enumerate() { + loop { + println!( + "{} ({}: {})", + param_name[i].yellow(), + default_msg, + params[i] + ); + let mut line = String::new(); + let _ = std::io::stdin().read_line(&mut line)?; + if line == String::from("\n") || line == String::from("\r\n") { + println!("{} {}", "default".italic(), params[i]); + break; + } + if let Ok(a) = line.trim().parse::() { + if a == 0 { + continue; + } + params[i] = a; + break; + }; + } + } + let options = GameSettings { + width: params[0], + height: params[1], + mines: params[2], + }; + Ok(options) +} + +pub fn take_input(dimensions: (usize, usize)) -> Result> { + let mut line = String::new(); + let _ = std::io::stdin().read_line(&mut line)?; + + let first_char = line.chars().next().unwrap(); + + if first_char.is_alphabetic() { + line = line[1..].to_string(); + } + + let mut x = 0; + let mut y = 0; + for (i, a) in line.split(",").enumerate() { + let k = a.trim(); + let coordinate: usize = if let Ok(a) = k.parse() { a } else { 1 }; + + if coordinate < 1 { + return Err("Invalid Location".into()); + } + if i == 0 { + x = coordinate - 1 + } else { + y = coordinate - 1 + } + } + if y >= dimensions.1 || x >= dimensions.0 { + return Err("Invalid Location".into()); + } + + let action: Action = if first_char.is_alphabetic() { + match first_char { + 'f' => Action::Flag(x, y), + '?' => Action::Question(x, y), + 'q' => Action::Quit, + _ => Action::Sweep(x, y), + } + } else { + Action::Sweep(x, y) + }; + + Ok(action) +} + + diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..501c4fd --- /dev/null +++ b/src/main.rs @@ -0,0 +1,78 @@ +mod cli; +mod minesweeper; +use crate::minesweeper::GameSettings; +use clap::Parser; + +/// Minesweeper +#[derive(Parser, Debug)] +#[command(author, version, about)] +struct Args { + /// Size of game board + #[arg( + long, + short, + value_parser = parse_dimensions + )] + dimensions: Option<[usize; 2]>, + /// Width of game board + #[arg( + long, + requires("height"), + requires("mines"), + conflicts_with = "dimensions" + )] + width: Option, + /// Height of game board + #[arg( + long, + requires("width"), + requires("mines"), + conflicts_with = "dimensions" + )] + height: Option, + /// Number of mines + #[arg(short, long)] + mines: Option, +} + +fn main() { + let args = Args::parse(); + fn get_settings(args: &Args) -> Option { + if args.mines.is_none() { + return None; + } + let [width, height] = if let (Some(width), Some(height)) = (args.height, args.width) { + [width, height] + } else if let Some(dimensions) = args.dimensions { + dimensions + } else { + return None; + }; + Some(GameSettings { + width, + height, + mines: args.mines.unwrap(), + }) + } + let settings = get_settings(&args); + cli::begin(settings); +} + +fn parse_dimensions(s: &str) -> Result<[usize; 2], String> { + let mut dimension: [usize; 2] = [0, 0]; + let mut atr_itr = s.split('x'); + for a in dimension.iter_mut() { + if let Some(str) = atr_itr.next() { + if let Ok(num) = str.parse::() { + *a = num; + } else { + return Err("Each dimension must be a number.".into()); + } + } + } + if dimension[0] == 0 || dimension[1] == 0 { + return Err("Two dimensions separated by an `x` are required.".into()); + } + + Ok(dimension) +} diff --git a/src/minesweeper.rs b/src/minesweeper.rs new file mode 100644 index 0000000..6bc2011 --- /dev/null +++ b/src/minesweeper.rs @@ -0,0 +1,321 @@ +use rand::Rng; + +use std::collections::VecDeque; +use std::error::Error; +use std::time; +use std::vec; + +const SCAN: [(isize, isize); 8] = [ + (-1, -1), + (0, -1), + (1, -1), + (-1, 0), + (1, 0), + (-1, 1), + (0, 1), + (1, 1), +]; +const SAFE_ZONE: [(isize, isize); 9] = [ + (-1, -1), + (0, -1), + (1, -1), + (-1, 0), + (0, 0), + (1, 0), + (-1, 1), + (0, 1), + (1, 1), +]; +#[derive(Copy, Clone, PartialEq)] + +pub enum TileState { + Zero, + One, + Two, + Three, + Four, + Five, + Six, + Seven, + Eight, + Mine, +} +#[derive(Copy, Clone, PartialEq)] +pub enum TileModifier { + Flagged, + _Unsure, +} + +#[derive(Copy, Clone)] +pub struct Tile { + pub state: TileState, + pub modifier: Option, + pub swept: bool, + safe: bool, +} + +#[derive(PartialEq)] +pub enum GameState { + Empty, + Playing, + GameOver, + Victory, +} +pub enum GameEvent { + RevealMine(usize, usize, Tile), + RevealTile(usize, usize, Tile), + FlagTile(usize, usize, Tile), + SweepDone, + SweepBegin, + InitDone, + FlagAllMines, + GameStart, + GameEnd(GameBoard), +} +pub struct GameSettings { + pub width: usize, + pub height: usize, + pub mines: usize, +} + +pub struct Minesweeper { + pub board: GameBoard, + pub state: GameState, + pub start_time: Option, + pub events: Events, +} +pub struct Events { + events: Vec, +} + +impl Events { + fn add(&mut self, event: GameEvent) { + self.events.push(event); + } + pub fn next(&mut self) -> Option { + if self.events.len() > 0 { + self.events.pop() + } else { + None + } + } +} +#[derive(Clone)] +pub struct GameBoard { + pub tiles: Vec>, + pub width: usize, + pub height: usize, + pub mines: usize, + pub flags: usize, + valid_flags: usize, +} + +impl Minesweeper { + pub fn new(settings: &GameSettings) -> Result> { + if settings.width == 0 || settings.height == 0 { + return Err("Can't make game board with zero length dimension".into()); + }; + if (settings.width * settings.height) as isize - 9 < settings.mines as isize { + // Can't have more mines than tiles on the game board. Else, the + // loop that places mines on board will never complete. + return Err("Not enough space for mines".into()); + } + + let board = GameBoard { + tiles: vec![ + vec![ + Tile { + state: TileState::Zero, + modifier: None, + swept: false, + safe: false, + }; + settings.height + ]; + settings.width + ], + width: settings.width, + height: settings.height, + mines: settings.mines, + flags: 0, + valid_flags: 0, + }; + let game = Self { + board, + state: GameState::Empty, + start_time: None, + events: Events { events: vec![] }, + }; + + Ok(game) + } + fn generate(&mut self, avoid_x: usize, avoid_y: usize) { + self.events.add(GameEvent::GameStart); + + let width = self.board.width; + let height = self.board.height; + // Make list of all safe positions which are actually on board, + //removing all which are before, or past the bounds of the board. + let mut valid_safezone: Vec<(isize, isize)> = SAFE_ZONE.to_vec(); + valid_safezone.retain_mut(|pos: &mut (isize, isize)| { + let adjusted_x = pos.0 + avoid_x as isize; + let adjusted_y = pos.1 + avoid_y as isize; + if adjusted_x >= 0 + && adjusted_y >= 0 + && adjusted_x < width as isize + && adjusted_y < height as isize + { + pos.0 = adjusted_x; + pos.1 = adjusted_y; + return true; + } + false + }); + for safe_pos in valid_safezone.iter() { + let safe_x = safe_pos.0 as usize; + let safe_y = safe_pos.1 as usize; + self.board.tiles[safe_x][safe_y].safe = true; + } + #[cfg(not(target_arch = "wasm32"))] + let mut rng = rand::thread_rng(); + + let mut i = 0; + + while i != self.board.mines { + let x = rng.gen_range(0..width); + let y = rng.gen_range(0..height); + + let mut tile = &mut self.board.tiles[x][y]; + + if tile.state == TileState::Mine || tile.safe == true { + continue; + } + + tile.state = TileState::Mine; + + i += 1; + } + + for x in 0..width { + for y in 0..height { + if self.board.tiles[x][y].state == TileState::Mine { + for &scan_location in SCAN.iter() { + let new_x = x as isize + scan_location.0; + let new_y = y as isize + scan_location.1; + if new_x >= width as isize + || new_x < 0 + || new_y >= height as isize + || new_y < 0 + { + continue; + } + let new_x = new_x as usize; + let new_y = new_y as usize; + if self.board.tiles[new_x][new_y].state != TileState::Mine { + self.board.tiles[new_x][new_y].state = + match self.board.tiles[new_x][new_y].state { + TileState::Zero => TileState::One, + TileState::One => TileState::Two, + TileState::Two => TileState::Three, + TileState::Three => TileState::Four, + TileState::Four => TileState::Five, + TileState::Five => TileState::Six, + TileState::Six => TileState::Seven, + TileState::Seven => TileState::Eight, + _ => TileState::Eight, + } + } + } + } + } + } + self.start_time = Some(time::Instant::now()); + self.state = GameState::Playing; + self.events.add(GameEvent::InitDone); + } + pub fn sweep(&mut self, x: usize, y: usize) { + if GameState::Empty == self.state { + self.generate(x, y); + } + if self.state != GameState::Playing { + return; + } + let &tile = &self.board.tiles[x][y]; + if let Some(_) = tile.modifier { + return; + } + self.board.tiles[x][y].swept = true; + self.events + .add(GameEvent::RevealTile(x, y, self.board.tiles[x][y].clone())); + + if tile.state == TileState::Mine { + self.events.add(GameEvent::RevealMine(x, y, tile.clone())); + + self.events.add(GameEvent::GameEnd(self.board.clone())); + self.state = GameState::GameOver; + return; + }; + self.events.add(GameEvent::SweepBegin); + + let mut scan_list = VecDeque::from([(x, y)]); + while scan_list.len() > 0 { + for &scan_location in SCAN.iter() { + let old_tile = self.board.tiles[scan_list[0].0][scan_list[0].1]; + if old_tile.state != TileState::Zero { + continue; + } + let x = scan_list[0].0 as isize + scan_location.0; + let y = scan_list[0].1 as isize + scan_location.1; + + if x >= self.board.width as isize + || y >= self.board.height as isize + || x < 0 + || y < 0 + { + continue; + } + let y = y as usize; + let x = x as usize; + let tile = self.board.tiles[x][y]; + if tile.swept { + continue; + } + scan_list.push_back((x, y)); + + self.board.tiles[x][y].swept = true; + self.events + .add(GameEvent::RevealTile(x, y, self.board.tiles[x][y].clone())); + } + scan_list.pop_front(); + } + self.events.add(GameEvent::SweepDone); + } + pub fn flag(&mut self, x: usize, y: usize) { + if self.state != GameState::Playing || self.board.tiles[x][y].swept { + return; + } + + let mut tile = &mut self.board.tiles[x][y]; + if let Some(TileModifier::Flagged) = tile.modifier { + tile.modifier = None; + if tile.state == TileState::Mine { + self.board.valid_flags -= 1; + } + self.board.flags -= 1; + self.events.add(GameEvent::FlagTile(x, y, tile.clone())); + } else if tile.modifier.is_none() { + tile.modifier = Some(TileModifier::Flagged); + self.board.flags += 1; + if tile.state == TileState::Mine { + self.board.valid_flags += 1; + } + self.events.add(GameEvent::FlagTile(x, y, tile.clone())); + + if self.board.valid_flags == self.board.mines { + self.events.add(GameEvent::FlagAllMines); + self.state = GameState::Victory; + return; + } + } + } +}