From: Bernie Innocenti <bernie@codewiz.org>
Date: Sat, 8 Apr 2017 17:41:33 +0000 (-0400)
Subject: Make music optional.
X-Git-Tag: v0.4.0~3
X-Git-Url: https://codewiz.org/gitweb?p=mandelwow.git;a=commitdiff_plain;h=6c807504ba6d388b7756433469d0836f42409d44

Make music optional.
---

diff --git a/Cargo.toml b/Cargo.toml
index cada459..d529ef8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,4 +13,4 @@ sdl2 = "*"
 
 [[bin]]
 name = "mandelwow"
-path = "mandelwow.rs"
+path = "main.rs"
diff --git a/main.rs b/main.rs
index dac8b37..1b33688 100644
--- a/main.rs
+++ b/main.rs
@@ -95,7 +95,7 @@ fn bounding_box<U>(display: &glium::Display,
 }
 
 fn main() {
-    sound::start();
+    let _soundplayer = sound::start();
 
     let display = glium::glutin::WindowBuilder::new()
         //.with_dimensions(1024, 768)
diff --git a/sound.rs b/sound.rs
index 4b94686..d88850b 100644
--- a/sound.rs
+++ b/sound.rs
@@ -18,7 +18,7 @@ impl AudioCallback for XmCallback {
 }
 
 pub struct SoundPlayer {
-    _device: AudioDevice<XmCallback>,
+    _device: Option<AudioDevice<XmCallback>>,
 }
 
 fn play_xm(raw_xm: &[u8]) -> SoundPlayer {
@@ -42,14 +42,21 @@ fn play_xm(raw_xm: &[u8]) -> SoundPlayer {
     device.resume();
 
     SoundPlayer {
-        _device: device,
+        _device: Some(device),
     }
 }
 
 pub fn start() -> SoundPlayer {
-    let mut xm = Vec::new();
     let filename = "flora.xm";
-    File::open(filename).unwrap()
-        .read_to_end(&mut xm).unwrap();
-    return play_xm(&xm);
+    match File::open(filename) {
+        Result::Ok(mut f) => {
+            let mut xm = Vec::new();
+            f.read_to_end(&mut xm).unwrap();
+            return play_xm(&xm);
+        },
+        Result::Err(err) => {
+            println!("Couldn't open module {}: {:?}", filename, err);
+        },
+    }
+    return SoundPlayer { _device: None };
 }