servius/snake-rs
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Add unicode snake printing

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Removed a lot of unused and commented code
This commit is contained in:
Uttarayan Mondal
2021-01-24 03:12:13 +05:30
parent c2eff08c9f
commit eeaa8a2675
6 changed files with 110 additions and 68 deletions
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src/game/backend.rs
+18 -3
View File
@@ -5,6 +5,7 @@ use std::collections::LinkedList;
use std::ops::Sub;
use std::thread::sleep;
use std::time::Duration;
#[derive(Debug)]
pub enum Direction {
Up,
Down,
@@ -39,6 +40,20 @@ impl Direction {
}
}
}
#[derive(Debug)]
// impl std::fmt::Debug for Direction {
// fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
// // write!(f,)
// write!(
// f,
// "{}",
// match *self {
// Self::Up => (),
// _ => (),
// }
// );
// }
// }
pub enum CellType {
Food,
@@ -89,10 +104,10 @@ impl Cell {
}
pub fn is_adjacent(&self, other: &Cell) -> Option<Direction> {
match *self - *other {
(0, 1) => Some(Direction::Left),
(0, 1) => Some(Direction::Right),
(1, 0) => Some(Direction::Down),
(-1, 0) => Some(Direction::Right),
(0, -1) => Some(Direction::Up),
(-1, 0) => Some(Direction::Up),
(0, -1) => Some(Direction::Left),
_ => None,
}
}
src/game/frontend.rs
+50 -49
View File
@@ -10,8 +10,6 @@ pub fn game_window(mlines: i32, mcols: i32, vmargin: i32, hmargin: i32) -> WINDO
let (starty, startx): (i32, i32);
lines = mlines - vmargin * 2;
cols = mcols - hmargin * 2;
// starty = (mlines - lines) / 2;
// startx = (mcols - cols) / 2;
starty = vmargin;
startx = hmargin;
game_win = newwin(lines, cols, starty, startx);
@@ -41,54 +39,67 @@ pub fn draw_snake(snake: &Snake, game_win: WINDOW) {
// So I'll need to know the last and next cell of the snake to draw the current snake_cell
// For some reason the snake goes invisible after the first food
prev = snake_iter.next().unwrap(); // currently this should be head. On initial run this should be the only snake_cell
mvwaddstr(game_win, prev.posyx().0, prev.posyx().1, &format!("H"));
mvwaddstr(
game_win,
prev.posyx().0,
prev.posyx().1,
&format!("{}", std::char::from_u32(0x0298).unwrap_or('O')),
);
let _current = snake_iter.next();
// current = match _current {
// Some(cell) => cell,
// None => return,
// };
if _current.is_some() {
current = _current.unwrap();
} else {
return;
} // the match is equivalent to this block of code
// this should be none in the initial run
// as of now this will panic as soon as the game starts
// I need to match this with Some(Cell) and None and if
// none then just straight exit from the function
// The head is never in current so the head is not being printed as of now
current = match _current {
Some(cell) => cell,
None => return,
};
for next in snake_iter {
// O(n) the whole snake is redrawn every single tick
let (snake_l, snake_c): (i32, i32) = current.posyx();
// mvwaddstr(game_win, snake_l, snake_c, "o");
let snake_char = match (
let snake_char: u32 = match (
prev.is_adjacent(current).unwrap(),
next.is_adjacent(current).unwrap(),
) {
(Direction::Up, Direction::Down) | (Direction::Down, Direction::Up) => "║", //186, //boxdraw double vertical line ║ code 186
(Direction::Up, Direction::Left) | (Direction::Left, Direction::Left) => "╝", //188, // ╝
(Direction::Up, Direction::Right) | (Direction::Right, Direction::Up) => "╚", //200, // ╚
(Direction::Down, Direction::Left) | (Direction::Left, Direction::Down) => "╗", //187, // ╗
(Direction::Down, Direction::Right) | (Direction::Right, Direction::Down) => "╔", //,201, // ╔
(Direction::Left, Direction::Right) | (Direction::Right, Direction::Left) => "═", //205 ═
_ => " ",
(Direction::Up, Direction::Down) | (Direction::Down, Direction::Up) => 0x2551, //"║"
(Direction::Up, Direction::Left) | (Direction::Left, Direction::Up) => 0x255d, //"╝"
(Direction::Up, Direction::Right) | (Direction::Right, Direction::Up) => 0x255a, //"╚"
(Direction::Down, Direction::Left) | (Direction::Left, Direction::Down) => 0x2557, // "╗"
(Direction::Down, Direction::Right) | (Direction::Right, Direction::Down) => 0x2554, //"╔"
(Direction::Left, Direction::Right) | (Direction::Right, Direction::Left) => 0x2550, //"═"
_ => 0x20,
};
mvwaddstr(
game_win, snake_l, snake_c, // &format!("{}", snake_char as char),
// &format!("{}", snake_char),
"o",
game_win,
snake_l,
snake_c,
&format!("{}", std::char::from_u32(snake_char).unwrap_or('o')),
);
prev = current;
current = next;
}
mvwaddstr(game_win, current.posyx().0, current.posyx().1, "t");
mvwaddstr(
game_win,
current.posyx().0,
current.posyx().1,
&format!(
"{}",
std::char::from_u32(match current.is_adjacent(prev).unwrap() {
Direction::Up | Direction::Down => 0x2551,
Direction::Left | Direction::Right => 0x2550,
})
.unwrap_or('o')
),
);
wrefresh(game_win);
}
pub fn draw_board(board: &Board, game_win: WINDOW) {
let (food_l, food_c): (i32, i32) = board.food_posyx();
mvwaddstr(game_win, food_l, food_c, "F");
mvwaddstr(
game_win,
food_l,
food_c,
&format!("{}", std::char::from_u32(0x0298).unwrap_or('F')),
);
}
pub fn _log(snake: &Snake, board: &Board) {
@@ -96,26 +107,16 @@ pub fn _log(snake: &Snake, board: &Board) {
let (bfl, bfc): (i32, i32) = board.food_posyx();
mvwaddstr(stdscr(), 0, 0, &format!("snake:head: {} {} ", shl, shc));
mvwaddstr(stdscr(), 1, 0, &format!("board:food: {} {} ", bfl, bfc));
// mvwaddstr(
// stdscr(),
// 2,
// 0,
// &format!(
// "board:maxlines {} maxcols {}",
// board.maxlines, board.maxcols
// ),
// );
wmove(stdscr(), 2, 0);
for snake_cell in snake.iter() {
let (scl, scc): (i32, i32) = snake_cell.posyx();
waddstr(stdscr(), &format!("cell: {} {} ", scl, scc));
waddstr(
stdscr(),
&format!(
"<cell y:{} x:{}>",
snake_cell.posyx().0,
snake_cell.posyx().1
),
);
}
mvwaddstr(
stdscr(),
3,
0,
&format!("snake_size {}", snake.iter().size_hint().0),
);
wrefresh(stdscr());
}
src/game/mod.rs
+1 -1
View File
@@ -24,7 +24,7 @@ pub fn start() {
loop {
frontend::draw_snake(&snake, game_win); // always draw snake before board because the snake will clear the game win
frontend::draw_board(&board, game_win);
frontend::_log(&snake, &board);
// frontend::_log(&snake, &board);
if board.check_collision(&snake) {
// Add stuff here to show the score and
// how You lose screen