1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#![allow(unused_imports, unused_variables, unused_mut)]
use colored::Colorize;
use crossterm::{
cursor::{Hide, MoveTo, Show},
event,
event::{poll, Event, KeyCode, KeyEvent},
style::Stylize,
terminal,
terminal::{EnterAlternateScreen, LeaveAlternateScreen},
ExecutableCommand, QueueableCommand,
};
use rand::{thread_rng, Rng};
use std::{
io::{self, Write},
thread::sleep,
time::Duration,
};
pub type Gen = Vec<Vec<Cell>>;
#[derive(Clone, Copy, Debug)]
pub enum Cell {
Alive,
Dead,
}
pub fn render_gen(stdout: &mut io::Stdout, gen: &Gen) {
for i in 0..gen.len() {
for j in 0..gen[0].len() {
stdout.queue(MoveTo(i as u16, j as u16)).unwrap();
match gen[i][j] {
// Cell::Alive => print!("😎"),
// Cell::Alive => print!("🦀"),
Cell::Alive => print!("{}", "X".color("blue")),
Cell::Dead => print!("{}", "-".color("red")),
}
stdout.flush().unwrap();
}
}
}
pub fn new_gen() -> Gen {
let cells = vec![Cell::Dead, Cell::Dead, Cell::Alive, Cell::Dead, Cell::Alive];
let rows: u16 = terminal::size().unwrap().1;
let cols: u16 = terminal::size().unwrap().0;
let mut colums: Vec<Vec<Cell>> = Vec::new();
for _ in 0..cols {
let mut col: Vec<Cell> = Vec::new();
for _ in 0..rows {
let rand = thread_rng().gen_range(0..10);
col.push(cells[rand % 5]);
}
colums.push(col);
}
colums
}
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(cur_gen: &mut Gen) -> Gen {
let m: i32 = cur_gen.len() as i32;
let n: i32 = 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, cur_gen);
match 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;
}
}
}
}
}
*cur_gen = nxt_gen.clone();
nxt_gen
}
pub fn init() {
let mut stdout = io::stdout();
let mut frame: Gen = new_gen();
let mut nxt;
terminal::enable_raw_mode().unwrap();
stdout.execute(EnterAlternateScreen).unwrap();
stdout.execute(Hide).unwrap();
'gameloop: loop {
while event::poll(Duration::default()).unwrap() {
if let Event::Key(key_event) = event::read().unwrap() {
match key_event.code {
KeyCode::Esc | KeyCode::Char('q') => {
break 'gameloop;
}
KeyCode::Char('s') => {
frame = new_gen();
render_gen(&mut stdout, &frame)
}
KeyCode::Char('n') => {
nxt = next_gen(&mut frame);
render_gen(&mut stdout, &nxt)
}
KeyCode::Char('a') => 'animate: loop {
nxt = next_gen(&mut frame);
render_gen(&mut stdout, &nxt);
sleep(Duration::from_millis(16));
if (poll(Duration::from_millis(1))).unwrap() {
if let Event::Key(k) = event::read().unwrap() {
match k.code {
KeyCode::Char('q') => break 'animate,
_ => {}
}
}
} else {
}
},
_ => {}
}
}
}
}
stdout.execute(Show).unwrap();
stdout.execute(LeaveAlternateScreen).unwrap();
terminal::disable_raw_mode().unwrap();
}
|
