From 48499ac10a1f2b72959d763ac23462085276de79 Mon Sep 17 00:00:00 2001
From: Scott Percival
Date: Sun, 22 Dec 2019 17:42:24 +0800
Subject: DIRECTOR: Fix _nextFrame from getting clobbered by exitFrame events

---
 engines/director/score.cpp | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'engines')

diff --git a/engines/director/score.cpp b/engines/director/score.cpp
index acbccf145f..062cff06bd 100644
--- a/engines/director/score.cpp
+++ b/engines/director/score.cpp
@@ -1351,8 +1351,22 @@ void Score::update() {
 	}
 
 	// For previous frame
-	if (_currentFrame > 0)
-		_lingo->processEvent(kEventExitFrame);
+	if (_currentFrame > 0) {
+		// When Lingo::func_goto* is called, _nextFrame is set
+		// and _skipFrameAdvance is set to true.
+		// However, the exitFrame event can overwrite the value
+		// for _nextFrame before it can be used.
+		// Because we still want to call exitFrame, we check if
+		// a goto call has been made and if so, cache the value
+		// of _nextFrame so it doesn't get wiped.
+		if (_vm->_skipFrameAdvance) {
+			uint16 nextFrameCache = _nextFrame;
+			_lingo->processEvent(kEventExitFrame);
+			_nextFrame = nextFrameCache;
+		} else {
+			_lingo->processEvent(kEventExitFrame);
+		}
+	}
 
 	if (!_vm->_playbackPaused) {
 		if (_nextFrame)
-- 
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