feat: added comet_sound to cargo toml and added with_audio to the builder pattern

Cargo.toml

@@ -16,6 +16,7 @@ comet_ecs = { path = "./crates/comet_ecs", workspace = true }
 comet_input = { path = "./crates/comet_input", workspace = true }
 comet_log = { path = "./crates/comet_log", workspace = true }
 comet_structs = { path = "./crates/comet_structs", workspace = true }
+comet_sound = { path = "./crates/comet_sound", workspace = true }
 
 cfg-if = "1"
 anyhow = "1.0"
@@ -62,4 +63,5 @@ comet_resources = { path = "./crates/comet_resources", workspace = true }
 comet_ecs = { path = "./crates/comet_ecs", workspace = true }
 comet_input = { path = "./crates/comet_input", workspace = true }
 comet_log = { path = "./crates/comet_log", workspace = true }
-comet_structs = { path = "./crates/comet_structs", workspace = true }
+comet_structs = { path = "./crates/comet_structs", workspace = true }
+comet_sound = { path = "./crates/comet_sound", workspace = true }

crates/comet_app/src/app.rs

@@ -111,6 +111,11 @@ impl App {
         self
     }
 
+    pub fn with_audio(mut self, audio_system: Box<dyn Audio>) -> Self {
+        self.audio = audio_system;
+        self
+    }
+
     fn load_icon(path: &std::path::Path) -> Option<Icon> {
         let image = match image::open(path) {
             Ok(image) => image,
@@ -387,8 +392,7 @@ impl App {
                                     match renderer.render() {
                                         Ok(_) => {}
                                         Err(
-                                            wgpu::SurfaceError::Lost
-                                            | wgpu::SurfaceError::Outdated,
+                                            wgpu::SurfaceError::Lost | wgpu::SurfaceError::Outdated,
                                         ) => {
                                             let size = renderer.size();
                                             renderer.resize(size);

examples/hello_sound.rs

@@ -0,0 +1,26 @@
+use comet::prelude::*;
+use comet_sound::Audio;
+
+fn setup(app: &mut App, _renderer: &mut Renderer2D) {
+    app.load_audio("startup", "res/sounds/hit.ogg");
+    app.play_audio("startup", true); // second parameter loops the sound
+
+    // here the float indicated the volume percentage
+    // in the standard backend for audio in comet (kira) 0.0 is equal to -20dB and 1.0 to 0dB
+    app.set_volume("startup", 1.0);
+}
+
+#[allow(unused_variables)]
+fn update(app: &mut App, renderer: &mut Renderer2D, dt: f32) {
+    // in this example, update_audio doesnt do anything because the kira audio system
+    // doesnt need any update
+    app.update_audio(dt);
+}
+
+fn main() {
+    App::new()
+        .with_title("Comet Audio Example")
+        // This can be used to add your own sound engine to the engine
+        .with_audio(Box::new(comet_sound::KiraAudio::new())) // to
+        .run::<Renderer2D>(setup, update);
+}