From a399aacb398b784b912a2099a4471d7a41e3a8bd Mon Sep 17 00:00:00 2001
From: toaster <rollerorbital@gmail.com>
Date: Mon, 15 Sep 2025 18:51:02 +0100
Subject: [PATCH] Fix voice flipping in encore/stereoreverse

---
 src/s_sound.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/s_sound.c b/src/s_sound.c
index 121147978..134325dec 100644
--- a/src/s_sound.c
+++ b/src/s_sound.c
@@ -1011,7 +1011,11 @@ void S_UpdateVoicePositionalProperties(void)
 		float pdirx = px / p2ddistance;
 		float pdiry = py / p2ddistance;
 		float angle = acosf(pdirx * ldirx + pdiry * ldiry);
-		angle = PointIsLeft(ldirx, ldiry, pdirx, pdiry) ? -angle : angle;
+		angle = (
+			PointIsLeft(ldirx, ldiry, pdirx, pdiry)
+			^ stereoreverse.value
+			^ encoremode
+		) ? -angle : angle;
 
 		float plrvolume = 1.0f;