Upgrade termion and replace rand with fastrand

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 authors = ["CrazyMerlyn <crazy.d.merlyn@gmail.com>"]
 name = "sudoku-tty"
-version = "0.1.3"
+version = "0.1.4"
 description = "Play sudoku in terminal"
 repository = "https://github.com/crazymerlyn/sudoku"
 
@@ -11,8 +11,8 @@ categories = ["games", "command-line-utilities"]
 keywords = ["sudoku", "puzzle", "tty", "tui"]
 
 [dependencies]
-rand = "0.3.15"
-termion = "1.3.0"
+fastrand = "2.0.2"
+termion = "3.0.0"
 
 [[bin]]
 name = "sudoku"

src/grid/generator.rs

@@ -1,8 +1,6 @@
 use std::convert::Into;
 use std::fmt;
 
-use rand::{random, thread_rng, Rng};
-
 use super::Grid;
 
 const VERY_EASY: &str = include_str!("./seeds/veasy.csv");
@@ -18,17 +16,17 @@ impl Generator {
         let puzzles_str = diff.into().puzzles();
         let puzzles = read_puzzles(puzzles_str);
 
-        let mut puzzle = puzzles[random::<usize>() % puzzles.len()].clone();
+        let mut puzzle = puzzles[fastrand::usize(..puzzles.len())].clone();
 
         let mut permutation: Vec<_> = (1..10).collect();
-        thread_rng().shuffle(&mut permutation);
+        fastrand::shuffle(&mut permutation);
         puzzle.permute(&permutation);
 
-        if random() {
+        if fastrand::bool() {
             puzzle.flip_horizontally();
         }
 
-        if random() {
+        if fastrand::bool() {
             puzzle.flip_vertically();
         }
 

src/main.rs

@@ -1,12 +1,12 @@
 #![allow(dead_code)]
 
-extern crate rand;
+extern crate fastrand;
 extern crate termion;
 
 use std::io;
 use termion::input::MouseTerminal;
 use termion::raw::IntoRawMode;
-use termion::screen::AlternateScreen;
+use termion::screen::IntoAlternateScreen;
 
 mod grid;
 
@@ -15,7 +15,11 @@ use game::Game;
 
 fn main() {
     let stdin = io::stdin();
-    let screen = AlternateScreen::from(io::stdout().into_raw_mode().unwrap());
+    let screen = io::stdout()
+        .into_raw_mode()
+        .unwrap()
+        .into_alternate_screen()
+        .unwrap();
     let stdout = MouseTerminal::from(screen);
 
     let mut game = Game::new(stdin, stdout);