2048_rust

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Small 2048 game in Rust

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Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-09-12 20:02 UTC

9 files changed+1045-0

2048 init

Added file: .envrc+2

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1+use flake

2+

Added file: .gitignore+2

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1+.direnv

2+target

Added file: Cargo.lock+87 additions@@ -0,0 +1,87 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "cfg-if"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
+
+[[package]]
+name = "chacha20"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "65c35e4b699c7e15ccbe7ee35c005e4fc0a278d22238a2857e6ce2dadeda1b06"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "rand_core",
+]
+
+[[package]]
+name = "cpufeatures"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca28b0ae3115b884660db4118d803791fd6756b6e88f39c0f3f7859060d7566"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "300e883d756b2e4ec94e02791f39b04b522276138852cfc41d9fb7e904106099"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+ "rand_core",
+]
+
+[[package]]
+name = "jag_2048"
+version = "1.0.0"
+dependencies = [
+ "rand",
+ "termios",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.189"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
+
+[[package]]
+name = "r-efi"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
+
+[[package]]
+name = "rand"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7f5fa3a058cd35567ef9bfa5e75732bee0f9e4c55fa90477bef2dfcdbc4be80"
+dependencies = [
+ "chacha20",
+ "getrandom",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63b8176103e19a2643978565ca18b50549f6101881c443590420e4dc998a3c69"
+
+[[package]]
+name = "termios"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "411c5bf740737c7918b8b1fe232dca4dc9f8e754b8ad5e20966814001ed0ac6b"
+dependencies = [
+ "libc",
+]

Added file: Cargo.toml+8

@@ -0,0 +1,8 @@

1+[package]

2+name = "jag_2048"

3+version = "1.0.0"

4+edition = "2024"

5+

6+[dependencies]

7+termios="0.3"

8+rand = "0.10.2"

Added file: LICENSE+676 additions@@ -0,0 +1,676 @@
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+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
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+  14. Revised Versions of this License.
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+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+
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+
+  If the program does terminal interaction, make it output a short
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+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+
+

Added file: README.md+3

@@ -0,0 +1,3 @@

1+<h1>2048</h1>

2+<p>A small 2048 I made to learn Rust</p>

+<p>Type this command while inside the folder <pre><code>$ cargo build --release</code></pre>and then this to run it <pre><code>$ ./target/release/jag_2048</code></pre></p>

Added file: flake.lock+27 additions@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1789073787,
+        "narHash": "sha256-xfX/toC2QV707s06GbP4II/TxYF0fNQj7s5/LClNDKc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "aff8a0b28396750446e5537a96461bc4facdb287",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

Added file: flake.nix+33 additions@@ -0,0 +1,33 @@
+{
+  description = "Rust 2048 game";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+  outputs = {nixpkgs, ...}: let
+    system = "x86_64-linux";
+    pkgs = nixpkgs.legacyPackages.${system};
+  in {
+    packages.${system}.default = pkgs.rustPlatform.buildRustPackage {
+      pname = "jag_2048";
+      version = "1.0.0";
+
+      src = ./.;
+
+      cargoLock.lockFile = ./Cargo.lock;
+
+      meta = {
+        description = "Rust 2048 game";
+        mainProgram = "jag_2048";
+      };
+    };
+
+    devShells.${system}.default = pkgs.mkShell {
+      packages = with pkgs; [
+        rustc
+        cargo
+        rustfmt
+        clippy
+      ];
+    };
+  };
+}

Added file: src/main.rs+207 additions@@ -0,0 +1,207 @@
+use std::io::{self, Write};
+use std::io::{Read, stdin};
+use std::os::unix::io::AsRawFd;
+use termios::*;
+
+#[derive(Debug, PartialEq)]
+enum Direction {
+    Up,
+    Down,
+    Right,
+    Left,
+    None,
+}
+
+fn print_field(field: [[u16; 4]; 4]) {
+    print!("┏━━━━┯━━━━┯━━━━┯━━━━┓\n");
+
+    for i in 0..4 {
+        print!("┃");
+
+        for j in 0..4 {
+            match field[i][j] {
+                0 => print!("    "),
+                n => print!("{:4}", n),
+            };
+
+            print!("{}", if j == 3 { "┃\n" } else { "│" });
+        }
+        //print!("\x1b[D┃\n┃    │    │    │    ┃\n");
+
+        if i != 3 {
+            print!("┠────┼────┼────┼────┨\n");
+        }
+    }
+
+    print!("┗━━━━┷━━━━┷━━━━┷━━━━┛\n");
+
+    io::stdout().flush().unwrap();
+}
+
+fn move_field(direction: Direction, field: [[u16; 4]; 4]) -> [[u16; 4]; 4] {
+    if direction == Direction::None {
+        return field;
+    }
+
+    let mut new_field = field.clone();
+
+    for i in 0..4 {
+        let mut lock = false;
+        for j in 1..4 {
+            for k in (1..=j).rev() {
+                let this = match direction {
+                    Direction::Up => (k, i),
+                    Direction::Down => (4 - k - 1, i),
+                    Direction::Right => (i, 4 - k - 1),
+                    Direction::Left => (i, k),
+                    _ => (i, k),
+                };
+                let next = match direction {
+                    Direction::Up => (k - 1, i),
+                    Direction::Down => (4 - k, i),
+                    Direction::Right => (i, 4 - k),
+                    Direction::Left => (i, k - 1),
+                    _ => (i, k),
+                };
+
+                if new_field[this.0][this.1] == 0 {
+                    break;
+                }
+
+                if new_field[this.0][this.1] == new_field[next.0][next.1] {
+                    if lock == true {
+                        lock = false;
+                        break;
+                    }
+                    new_field[this.0][this.1] = 0;
+                    new_field[next.0][next.1] *= 2;
+                    lock = true;
+                    break;
+                } else if new_field[next.0][next.1] == 0 {
+                    new_field[next.0][next.1] = new_field[this.0][this.1];
+                    new_field[this.0][this.1] = 0;
+                }
+            }
+        }
+    }
+    new_field
+}
+
+fn make_rand_num(field: &mut [[u16; 4]; 4]) {
+    let what_value = rand::random_range(0..10);
+
+    let mut coord = rand::random_range(0..16);
+
+    while field[coord / 4][coord % 4] != 0 {
+        coord = rand::random_range(0..16);
+    }
+
+    field[coord / 4][coord % 4] = match what_value {
+        0 => 4,
+        _ => 2,
+    }
+}
+
+fn field_has_empty(field: [[u16; 4]; 4]) -> bool {
+    for i in 0..4 {
+        for j in 0..4 {
+            if field[i][j] == 0 {
+                return true;
+            }
+        }
+    }
+    false
+}
+
+fn has_lost(field: [[u16; 4]; 4]) -> bool {
+    if field_has_empty(field) {
+        return false;
+    }
+
+    for i in 0..4 {
+        for j in 0..4 {
+            if i > 0 && field[i][j] == field[i - 1][j] {
+                return false;
+            }
+
+            if j > 0 && field[i][j] == field[i][j - 1] {
+                return false;
+            }
+
+            if i < 3 && field[i][j] == field[i + 1][j] {
+                return false;
+            }
+
+            if j < 3 && field[i][j] == field[i][j + 1] {
+                return false;
+            }
+        }
+    }
+
+    true
+}
+
+fn main() {
+    let fd = stdin().as_raw_fd();
+
+    let old = Termios::from_fd(fd).unwrap();
+    let mut new = old.clone();
+
+    new.c_lflag &= !(ECHO | ICANON);
+    new.c_cc[VMIN] = 1;
+    new.c_cc[VTIME] = 0;
+
+    tcsetattr(fd, TCSANOW, &new).unwrap();
+
+    let mut field: [[u16; 4]; 4] = [[0; 4]; 4];
+
+    make_rand_num(&mut field);
+    make_rand_num(&mut field);
+
+    let mut stdin = stdin();
+    let mut buf = [0u8; 10];
+
+    print!("\x1b[?25l\x1b[?1049h\x1b[2J\x1b[H");
+    io::stdout().flush().unwrap();
+
+    loop {
+        print!("\x1b[1;1H");
+        print_field(field);
+
+        let n = stdin.read(&mut buf).unwrap();
+
+        if n > 0 && (buf[0] == b'q' || buf[0] == b'Q') {
+            break;
+        }
+
+        if n == 3 && buf[0] == 0x1b && buf[1] == 0x5b {
+            let direction: Direction = match buf[2] {
+                0x41 => Direction::Up,
+                0x42 => Direction::Down,
+                0x43 => Direction::Right,
+                0x44 => Direction::Left,
+                _ => Direction::None,
+            };
+
+            let tmp = move_field(direction, field);
+
+            if tmp != field {
+                field = tmp;
+
+                if field_has_empty(field) {
+                    make_rand_num(&mut field);
+                }
+            }
+
+            if has_lost(field) {
+                break;
+            }
+        }
+    }
+
+    print!("\x1b[?1049l\x1b[?25h");
+    print_field(field);
+    io::stdout().flush().unwrap();
+
+    tcsetattr(fd, TCSANOW, &old).unwrap();
+}

2048_rust

Commit 9228970e010c

Commit `9228970e010c`