Initial commit
This commit is contained in:
commit
77d6ab3785
GPG Key ID:
28D140BCA60B4FD1
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/target
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "cc"
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version = "1.0.90"
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[[package]]
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name = "cfg-if"
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[[package]]
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name = "cmake"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
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dependencies = [
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"cc",
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]
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[[package]]
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name = "fs_extra"
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[[package]]
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checksum = "190092ea657667030ac6a35e305e62fc4dd69fd98ac98631e5d3a2b1575a12b5"
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dependencies = [
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"cfg-if",
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"libc",
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"wasi",
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]
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[[package]]
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name = "lazy_static"
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version = "1.4.0"
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[[package]]
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name = "libc"
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[[package]]
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name = "rand"
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version = "0.8.5"
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dependencies = [
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"libc",
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"rand_chacha",
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"rand_core",
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]
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[[package]]
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name = "rand_chacha"
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version = "0.3.1"
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dependencies = [
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"ppv-lite86",
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"rand_core",
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]
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[[package]]
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name = "rand_core"
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version = "0.6.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"getrandom",
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]
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[[package]]
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name = "raylib"
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version = "3.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fb567269b7ea9ae3c4a5aab4dc95e0b4d8df2a49a25e1670a3bb17bc17504606"
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dependencies = [
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"cfg-if",
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"lazy_static",
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"libc",
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"raylib-sys",
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]
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[[package]]
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name = "raylib-sys"
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version = "3.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "20c97b5e251b73c52183914d4756104cab401050f244c19abe83fa05a4e86840"
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dependencies = [
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"cc",
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"cmake",
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"fs_extra",
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]
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[[package]]
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name = "snake"
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version = "0.1.0"
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dependencies = [
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"rand",
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"raylib",
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]
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[[package]]
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name = "wasi"
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version = "0.11.0+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
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@ -0,0 +1,10 @@
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[package]
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name = "snake"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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rand = "0.8.5"
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raylib = "3.7.0"
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@ -0,0 +1,204 @@
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use raylib::prelude::*;
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use rand::prelude::*;
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const WIDTH: i32 = 800;
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const HEIGHT: i32 = 800;
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const RECT_SIZE: i32 = 20;
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const BOARD_HEIGHT: i32 = HEIGHT / RECT_SIZE;
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const BOARD_WIDTH: i32 = WIDTH / RECT_SIZE;
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#[derive(Copy, Clone)]
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enum RectType {
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HEAD,
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BODY,
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EMPTY,
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APPLE,
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}
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#[derive(Copy, Clone)]
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enum Direction {
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TOP,
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DOWN,
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LEFT,
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RIGHT,
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}
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#[derive(Copy, Clone, PartialEq)]
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struct Position {
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x: i32,
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y: i32,
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}
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fn gen_apple(game_data: &GameData) -> Position {
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let mut pos: Position = Position {x:0, y:0};
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let mut done = false;
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while !done {
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done = true;
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pos = Position {x: thread_rng().gen_range(0..BOARD_WIDTH), y: thread_rng().gen_range(0..BOARD_HEIGHT)};
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if game_data.head == pos {done = false}
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else {
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for tail_seg in &game_data.tail
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{
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if (tail_seg.x == pos.x) && (tail_seg.y == pos.y) {
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done = false;
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break;
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}
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}
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}
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}
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pos
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}
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struct GameData {
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board: [RectType; (BOARD_HEIGHT * BOARD_HEIGHT) as usize],
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head: Position,
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tail: Vec<Position>,
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direction: Direction,
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last_direction: Direction,
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game_over: bool,
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score: u32,
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apple: Position
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}
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fn update_game(game_data: &mut GameData) {
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game_data.last_direction = game_data.direction;
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let old_head_pos = game_data.head;
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match game_data.direction {
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Direction::DOWN => game_data.head.y += 1,
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Direction::TOP => game_data.head.y -= 1,
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Direction::LEFT => game_data.head.x -= 1,
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Direction::RIGHT => game_data.head.x += 1,
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}
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if game_data.head.x >= BOARD_WIDTH {
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game_data.head.x = 0
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} else if game_data.head.x < 0 {
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game_data.head.x = BOARD_WIDTH - 1
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} else if game_data.head.y < 0 {
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game_data.head.y = BOARD_HEIGHT - 1
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} else if game_data.head.y >= BOARD_HEIGHT {
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game_data.head.y = 0
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}
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if game_data.head == game_data.apple
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{
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game_data.apple = gen_apple(game_data);
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game_data.score += 1;
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game_data.tail.push(game_data.tail.last().copied().unwrap());
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}
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let last_tail = game_data.tail.last().copied().unwrap();
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for tail_id in (1..game_data.tail.len()).rev() {
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game_data.tail[tail_id] = game_data.tail[tail_id - 1];
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if game_data.head == game_data.tail[tail_id] {
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game_data.game_over = true;
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}
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game_data.board
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[(game_data.tail[tail_id].x + game_data.tail[tail_id].y * BOARD_HEIGHT) as usize] =
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RectType::BODY;
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}
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game_data.board[(last_tail.x + last_tail.y * BOARD_HEIGHT) as usize] = RectType::EMPTY;
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game_data.tail[0] = old_head_pos;
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game_data.board[(old_head_pos.x + old_head_pos.y * BOARD_HEIGHT) as usize] = RectType::BODY;
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game_data.board[(game_data.head.x + game_data.head.y * BOARD_HEIGHT) as usize] = RectType::HEAD;
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game_data.board[(game_data.apple.x + game_data.apple.y * BOARD_HEIGHT) as usize] = RectType::APPLE;
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}
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fn create_game_data() -> GameData {
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let mut game_data = GameData {
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board: [RectType::EMPTY; (BOARD_HEIGHT * BOARD_WIDTH) as usize],
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head: Position {
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x: BOARD_WIDTH / 2,
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y: BOARD_HEIGHT / 2,
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},
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tail: vec![
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Position {
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x: BOARD_WIDTH / 2,
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y: BOARD_HEIGHT / 2,
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};
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3
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],
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direction: Direction::RIGHT,
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last_direction: Direction::LEFT,
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game_over: false,
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score: 0,
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apple: Position {x: 0, y: 0}
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};
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game_data.apple = gen_apple(&game_data);
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game_data
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}
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fn main() {
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let (mut rl, thread) = raylib::init()
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.size(WIDTH, HEIGHT)
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.title("Snake")
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.vsync()
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.build();
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let show_fps: bool = false;
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let mut time: f64 = 0.0;
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let mut game_data = create_game_data();
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while !rl.window_should_close() {
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let fps = rl.get_fps();
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let frame_time = rl.get_frame_time();
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time += f64::from(frame_time);
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if (rl.is_key_down(KeyboardKey::KEY_UP) || rl.is_key_down(KeyboardKey::KEY_W))
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&& !matches!(game_data.last_direction, Direction::DOWN)
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{
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game_data.direction = Direction::TOP
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}
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if (rl.is_key_down(KeyboardKey::KEY_DOWN) || rl.is_key_down(KeyboardKey::KEY_S))
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&& !matches!(game_data.last_direction, Direction::TOP)
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{
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game_data.direction = Direction::DOWN
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}
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if (rl.is_key_down(KeyboardKey::KEY_LEFT) || rl.is_key_down(KeyboardKey::KEY_A))
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&& !matches!(game_data.last_direction, Direction::RIGHT)
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{
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game_data.direction = Direction::LEFT
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}
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if (rl.is_key_down(KeyboardKey::KEY_RIGHT) || rl.is_key_down(KeyboardKey::KEY_D))
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&& !matches!(game_data.last_direction, Direction::LEFT)
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{
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game_data.direction = Direction::RIGHT
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}
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if time >= 0.1 {
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time = 0.0;
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if !game_data.game_over {
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update_game(&mut game_data);
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};
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}
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if rl.is_key_down(KeyboardKey::KEY_ENTER) && game_data.game_over {
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game_data = create_game_data();
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time = 0.0;
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}
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let mut d = rl.begin_drawing(&thread);
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d.clear_background(Color::WHITE);
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for y in 0..BOARD_HEIGHT {
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for x in 0..BOARD_WIDTH {
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let color: Color;
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match game_data.board[(x + y * BOARD_WIDTH) as usize] {
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RectType::HEAD => color = Color::GREEN,
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RectType::BODY => color = Color::DARKGREEN,
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RectType::APPLE => color = Color::RED,
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RectType::EMPTY => color = Color::WHITE,
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};
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d.draw_rectangle(x * RECT_SIZE, y * RECT_SIZE, RECT_SIZE, RECT_SIZE, color);
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}
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}
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if game_data.game_over {
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d.draw_text("Game Over", WIDTH / 2 - 100, HEIGHT / 2, 40, Color::BLACK);
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d.draw_text(
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format!("Score: {}", game_data.score).as_str(),
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WIDTH / 2 - 50,
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HEIGHT / 2 + 50,
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20,
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Color::BLACK,
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);
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d.draw_text("Press Enter", WIDTH / 2 - 40, HEIGHT / 2 + 75, 10, Color::BLACK);
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}
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if show_fps {
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d.draw_text(fps.to_string().as_str(), 20, 10, 20, Color::BLUE)
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}
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}
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}
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