From eeef7a062a4caefef9db0a8ce7c639b513225205 Mon Sep 17 00:00:00 2001
From: Ericgi231 <ericgi231@gmail.com>
Date: Mon, 15 Sep 2025 20:57:00 -0500
Subject: [PATCH] Add async option to beep function for non-blocking audio
 feedback to fix #3789

---
 src/main/scala/li/cil/oc/server/machine/Machine.scala | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/li/cil/oc/server/machine/Machine.scala b/src/main/scala/li/cil/oc/server/machine/Machine.scala
index 3106f5821..2e02110c0 100644
--- a/src/main/scala/li/cil/oc/server/machine/Machine.scala
+++ b/src/main/scala/li/cil/oc/server/machine/Machine.scala
@@ -443,7 +443,7 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
   def isRunning(context: Context, args: Arguments): Array[AnyRef] =
     result(isRunning)
 
-  @Callback(doc = """function([frequency:string or number[, duration:number]]) -- Plays a tone, useful to alert users via audible feedback.""")
+  @Callback(doc = """function([frequency:string or number[, duration:number[, async:boolean]]]) -- Plays a tone, useful to alert users via audible feedback.""")
   def beep(context: Context, args: Arguments): Array[AnyRef] = {
     if (args.count == 1 && args.isString(0)) {
       beep(args.checkString(0))
@@ -454,7 +454,10 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
       }
       val duration = args.optDouble(1, 0.1)
       val durationInMilliseconds = math.max(50, math.min(5000, (duration * 1000).toInt))
-      context.pause(durationInMilliseconds / 1000.0)
+      val async = args.optBoolean(2, false)
+      if (!async) {
+        context.pause(durationInMilliseconds / 1000.0)
+      }
       beep(frequency.toShort, durationInMilliseconds.toShort)
     }
     null