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#![allow(unused_imports, unused_variables, unused_mut)]
use crate::ui::*;
use colored::Colorize;
use crossterm::{
cursor::{Hide, MoveTo, Show},
event::{poll, Event, KeyCode, KeyEvent},
event::{DisableMouseCapture, EnableMouseCapture},
execute,
style::Stylize,
terminal,
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use rand::{thread_rng, Rng};
use std::{
error::Error,
io::{self, Write},
thread::sleep,
time::Duration,
};
use tui::{
backend::{Backend, CrosstermBackend},
layout::{Alignment, Constraint, Corner, Direction, Layout, Rect},
style::{Color, Modifier, Style},
text::{Span, Spans},
widgets::{Block, Borders, List, ListItem, ListState, Paragraph},
Frame, Terminal,
};
pub type Gen = Vec<Vec<Cell>>;
#[derive(Clone, Copy, Debug)]
pub enum Cell {
Alive,
Dead,
}
pub fn render_gen(chunk: &Rect, gen: &Gen) {
for i in 0..chunk.height as usize {
for j in 0..chunk.width as usize {
match gen[i][j] {
// Cell::Alive => print!("😎"),
// Cell::Alive => print!("🦀"),
Cell::Alive => print!("{}", "X".color("blue")),
Cell::Dead => print!("{}", "-".color("red")),
}
}
}
}
pub fn new_gen(chunk: &Rect, app: &mut App) -> Gen {
app.flag_cur = true;
let cells = vec![Cell::Dead, Cell::Dead, Cell::Alive, Cell::Dead, Cell::Alive];
let cols: u16 = chunk.width - 90;
let rows: u16 = chunk.height - 2;
let mut grid: Vec<Vec<Cell>> = Vec::new();
for _ in 0..rows {
let mut row: Vec<Cell> = Vec::new();
for _ in 0..cols{
let rand = thread_rng().gen_range(0..10);
row.push(cells[rand % 5]);
}
grid.push(row);
}
grid
}
pub fn gen_to_spans(gen: &Gen) -> Vec<Spans> {
let mut spans = vec![];
let alive_cells = vec!["🟥","🟧","🟨","🟩","🟦", "🟪" ,"🟫"];
for i in 0..gen.len() {
let mut txt = String::new();
for j in 0..gen[0].len() {
let rand = thread_rng().gen_range(0..10);
match gen[i][j] {
// Cell::Alive => print!("😎"),
// Cell::Alive => txt.push_str("🦀"),
Cell::Alive => txt.push_str(alive_cells[rand % alive_cells.len()]),
Cell::Dead => txt.push_str("⬛️"),
// Cell::Alive => txt.push('X'),
// Cell::Dead => txt.push('-'),
}
}
spans.push(Spans::from(txt));
}
spans
}
// pub fn
pub fn is_valid_idx(i: i32, j: i32, m: i32, n: i32) -> bool {
i >= 0 && i < m && j >= 0 && j < n
}
pub fn get_alive(x: i32, y: i32, cur_gen: &Gen) -> i32 {
let mut alive_cnt: i32 = 0;
let m: i32 = cur_gen.len() as i32;
let n: i32 = cur_gen[0].len() as i32;
let dx: [i8; 8] = [0, 1, 0, -1, 1, -1, -1, 1];
let dy: [i8; 8] = [1, 0, -1, 0, 1, -1, 1, -1];
for i in 0..8 {
let nx: i32 = x as i32 + dx[i] as i32;
let ny: i32 = y as i32 + dy[i] as i32;
if is_valid_idx(nx, ny, m, n) {
let cur_cell = cur_gen[nx as usize][ny as usize];
match cur_cell {
Cell::Alive => alive_cnt += 1,
Cell::Dead => (),
}
}
}
alive_cnt
}
pub fn next_gen(app: &mut App) -> Gen {
let m: i32 = app.cur_gen.len() as i32;
let n: i32 = app.cur_gen[0].len() as i32;
let mut nxt_gen: Gen = Gen::new();
for _ in 0..m {
let mut col: Vec<Cell> = Vec::new();
for _ in 0..n {
col.push(Cell::Dead);
}
nxt_gen.push(col);
}
for i in 0..m {
for j in 0..n {
let alive = get_alive(i, j, &app.cur_gen);
match app.cur_gen[i as usize][j as usize] {
Cell::Alive => {
if alive == 2 || alive == 3 {
nxt_gen[i as usize][j as usize] = Cell::Alive;
} else {
nxt_gen[i as usize][j as usize] = Cell::Dead;
}
}
Cell::Dead => {
if alive == 3 {
nxt_gen[i as usize][j as usize] = Cell::Alive;
}
}
}
}
}
app.cur_gen = nxt_gen.clone();
nxt_gen
}
pub fn init() -> Result<(), Box<dyn Error>> {
// setup terminal
enable_raw_mode()?;
let mut stdout = io::stdout();
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
let backend = CrosstermBackend::new(stdout);
let mut terminal = Terminal::new(backend)?;
// create app and run it
let tick_rate = Duration::from_millis(250);
let app = App::new();
let res = run_app(&mut terminal, app, tick_rate);
// restore terminal
disable_raw_mode()?;
execute!(
terminal.backend_mut(),
LeaveAlternateScreen,
DisableMouseCapture
)?;
terminal.show_cursor()?;
if let Err(err) = res {
println!("{:?}", err)
}
Ok(())
}
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