From bd15a87c4de3cc829e95328f89953b1aadeed99e Mon Sep 17 00:00:00 2001
From: Gwilym Kuiper <gw@ilym.me>
Date: Fri, 25 Jun 2021 22:20:18 +0100
Subject: [PATCH] Ensure you don't hand over an already done channel

---
 agb/src/sound/mixer/sw_mixer.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/agb/src/sound/mixer/sw_mixer.rs b/agb/src/sound/mixer/sw_mixer.rs
index d423c647..accc4168 100644
--- a/agb/src/sound/mixer/sw_mixer.rs
+++ b/agb/src/sound/mixer/sw_mixer.rs
@@ -65,7 +65,7 @@ impl Mixer {
 
     pub fn get_channel(&mut self, id: &ChannelId) -> Option<&'_ mut SoundChannel> {
         if let Some(channel) = &mut self.channels[id.0] {
-            if self.indices[id.0] == id.1 {
+            if self.indices[id.0] == id.1 && !channel.is_done {
                 return Some(channel);
             }
         }