SCUMM: Work around script bug in The Dig

The sound of trickling water in the spider lair is started, but never
explicitly stopped, so it keeps going. (Possibly not forever. When I
tried it in DOSBox, it finally stopped when I got back to the Nexus.)
The same sound effect is used the underwater cavern, and in that case
the exit script does fade out the sound so this workaround emulates
that behaviour.

1 files changed, 12 insertions, 0 deletions

diff --git a/engines/scumm/script.cpp b/engines/scumm/script.cpp
index cfc4b3c419..c9e3edd728 100644
--- a/engines/scumm/script.cpp
+++ b/engines/scumm/script.cpp
@@ -29,6 +29,7 @@
 #include "scumm/resource.h"
 #include "scumm/util.h"
 #include "scumm/scumm_v2.h"
+#include "scumm/sound.h"
 #include "scumm/verbs.h"
 
 namespace Scumm {
@@ -935,6 +936,17 @@ void ScummEngine::runExitScript() {
 	}
 	if (VAR_EXIT_SCRIPT2 != 0xFF && VAR(VAR_EXIT_SCRIPT2))
 		runScript(VAR(VAR_EXIT_SCRIPT2), 0, 0, 0);
+
+#ifdef ENABLE_SCUMM_7_8
+	// WORKAROUND: The spider lair (room 44) will optionally play the sound
+	// of trickling water (sound 215), but it never stops it. The same sound
+	// effect is also used in room 33, so let's do the same fade out that it
+	// does in that room's exit script.
+	if (_game.id == GID_DIG && _currentRoom == 44) {
+		int scriptCmds[] = { 14, 215, 0x600, 0, 30 };
+		_sound->soundKludge(scriptCmds, ARRAYSIZE(scriptCmds));
+	}
+#endif
 }
 
 void ScummEngine::runEntryScript() {