From 4cb01f0ee7237c26972f53c50253be474b456189 Mon Sep 17 00:00:00 2001
From: Erik Hofman <erik@ehofman.com>
Date: Mon, 20 Feb 2023 09:00:30 +0100
Subject: [PATCH] Demonstrate the new machwave effect

---
 Aircraft/ufo/ufo-sound.xml | 55 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/Aircraft/ufo/ufo-sound.xml b/Aircraft/ufo/ufo-sound.xml
index 47780e613..0e7add7ab 100644
--- a/Aircraft/ufo/ufo-sound.xml
+++ b/Aircraft/ufo/ufo-sound.xml
@@ -4,6 +4,7 @@
 
  <fx>
  
+<!--
   <engine>
    <name>rumble</name>
    <mode>looped</mode>
@@ -21,6 +22,60 @@
     <offset>1.5</offset>
    </pitch>
   </engine>
+-->
+
+  <machwave>
+   <name>Shock Wave</name>
+   <path>Sounds/exhaust_loop.wav</path>
+   <mode>looped</mode>
+   <property>/sim/sound/machwave/active</property>
+   <volume>
+    <expression>
+     <table>
+      <property>/sim/sound/machwave/offset-m</property>
+      <entry>
+       <ind>15</ind>
+       <dep>1.0</dep>
+      </entry>
+      <entry>
+       <ind>20</ind>
+       <dep>1.0</dep>
+      </entry>
+      <entry>
+       <ind>30</ind>
+       <dep>1.0</dep>
+      </entry>
+      <entry>
+       <ind>75</ind>
+       <dep>0.0</dep>
+      </entry>
+     </table>
+    </expression>
+   </volume>
+   <pitch>
+    <expression>
+     <table>
+      <property>sim/sound/machwave/offset-m</property>
+      <entry>
+       <ind>15</ind>
+       <dep>2.5</dep>
+      </entry>
+      <entry>
+       <ind>20</ind>
+       <dep>2.5</dep>
+      </entry>
+      <entry>
+       <ind>30</ind>
+       <dep>2.5</dep>
+      </entry>
+      <entry>
+       <ind>75</ind>
+       <dep>1.5</dep>
+      </entry>
+     </table>
+    </expression>
+   </pitch>
+  </machwave>
 
  </fx>