audio

Cargo.toml

@@ -5,6 +5,7 @@ edition = "2021"
 
 [dependencies]
 rand = "0.9.0"
+rodio = "0.20.1"
 
 [dependencies.sdl2]
 version = "0.37.0"

src/gui.rs

@@ -0,0 +1,4 @@
+mod audio;
+mod render;
+
+pub use render::start_game;

src/gui/audio.rs

@@ -0,0 +1,74 @@
+use std::{fs::File, io::BufReader, sync::mpsc};
+
+use rodio::{Decoder, OutputStream, OutputStreamHandle, Sink, Source};
+
+use crate::game::SoundEffect;
+
+fn source_from_path<P: AsRef<std::path::Path>>(path: P) -> Decoder<BufReader<File>> {
+    let file = BufReader::new(File::open(path).unwrap());
+    let source = Decoder::new(file).unwrap();
+    source
+}
+
+fn play_audio<P: AsRef<std::path::Path>>(
+    stream_handle: &OutputStreamHandle,
+    sink: &mut Sink,
+    path: P,
+    volume: f32,
+) {
+    let source = source_from_path(path);
+    *sink = Sink::try_new(&stream_handle).unwrap();
+    sink.set_volume(volume);
+    sink.append(source);
+}
+
+pub fn audio_thread() -> mpsc::Sender<SoundEffect> {
+    let (sender, receiver) = mpsc::channel();
+
+    let _ = std::thread::spawn(move || {
+        let (_stream, stream_handle) = OutputStream::try_default().unwrap();
+        let music_sink = Sink::try_new(&stream_handle).unwrap();
+        let mut hard_drop_sink = Sink::try_new(&stream_handle).unwrap();
+        let mut line_clear_sink = Sink::try_new(&stream_handle).unwrap();
+        let mut move_sink = Sink::try_new(&stream_handle).unwrap();
+        let mut rotation_sink = Sink::try_new(&stream_handle).unwrap();
+
+        music_sink.append(source_from_path("resources/music.ogg").repeat_infinite());
+
+        loop {
+            let Ok(effect) = receiver.recv() else {
+                break;
+            };
+
+            let base_volume = 0.5;
+            match effect {
+                SoundEffect::HardDrop => play_audio(
+                    &stream_handle,
+                    &mut hard_drop_sink,
+                    "resources/hard_drop.ogg",
+                    base_volume,
+                ),
+                SoundEffect::LineClear(lines_cleared) => play_audio(
+                    &stream_handle,
+                    &mut line_clear_sink,
+                    "resources/line_clear.ogg",
+                    base_volume + (lines_cleared as f32 - 1.0) * 0.5,
+                ),
+                SoundEffect::Move => play_audio(
+                    &stream_handle,
+                    &mut move_sink,
+                    "resources/move.ogg",
+                    base_volume,
+                ),
+                SoundEffect::Rotation => play_audio(
+                    &stream_handle,
+                    &mut rotation_sink,
+                    "resources/rotation.ogg",
+                    base_volume,
+                ),
+            };
+        }
+    });
+
+    sender
+}

src/gui/render.rs

@@ -1,17 +1,17 @@
 use crate::actions::{Action, ActionsHeld};
 use crate::board::Board;
 use crate::game::{CurrentTetromino, Game};
-use crate::tetromino::Tetromino;
 use crate::Rgb;
 use sdl2::event::Event;
 use sdl2::keyboard::Keycode;
 use sdl2::pixels::Color;
 use sdl2::rect::Rect;
 use sdl2::render::{Texture, TextureCreator, WindowCanvas};
-use sdl2::rwops::RWops;
 use sdl2::ttf::Sdl2TtfContext;
 use std::time::Duration;
 
+use super::audio::{self};
+
 const WIDTH: i32 = 1000;
 const HEIGHT: i32 = 800;
 
@@ -119,10 +119,7 @@ fn font_texture<'font, 'a, C>(
     ttf_context: &'a Sdl2TtfContext,
     texture_creator: &'font TextureCreator<C>,
 ) -> Result<Texture<'font>, String> {
-    let font = ttf_context.load_font_from_rwops(
-        RWops::from_bytes(include_bytes!("res/josenfin_sans_regular.ttf"))?,
-        24,
-    )?;
+    let font = ttf_context.load_font("resources/josenfin_sans_regular.ttf", 24)?;
     let game_over_text = font.render(text).solid(Color::RGB(255, 255, 255)).unwrap();
     let texture = texture_creator
         .create_texture_from_surface(game_over_text)
@@ -161,6 +158,8 @@ pub fn start_game() -> Result<(), String> {
     let mut actions = ActionsHeld::new();
     let mut paused = false;
 
+    let audio_thread = audio::audio_thread();
+
     let sdl_context = sdl2::init()?;
     let ttf_context = sdl2::ttf::init().unwrap();
     let video_subsystem = sdl_context.video()?;
@@ -242,7 +241,10 @@ pub fn start_game() -> Result<(), String> {
                 &ttf_context,
             )?;
         } else {
-            game.step(&actions);
+            let effects = game.step(&actions);
+            effects
+                .into_iter()
+                .for_each(|effect| audio_thread.send(effect).unwrap());
         }
 
         canvas.present();

src/main.rs

@@ -3,7 +3,7 @@ use tetromino::Tetromino;
 mod actions;
 mod board;
 mod game;
-mod sdl_impl;
+mod gui;
 mod tetromino;
 
 struct Rgb(u8, u8, u8);
@@ -23,5 +23,5 @@ impl Rgb {
 }
 
 fn main() {
-    sdl_impl::start_game();
+    gui::start_game().unwrap();
 }