LASTEXPRESS: Check for a valid sequence in SequenceFrame::getName

This allows the demo to fail gracefully to the debugger instead of crashing

svn-id: r53595

2 files changed, 8 insertions, 1 deletions

diff --git a/engines/lastexpress/data/sequence.cpp b/engines/lastexpress/data/sequence.cpp
index be8b14fc27..cf71bd6a61 100644
--- a/engines/lastexpress/data/sequence.cpp
+++ b/engines/lastexpress/data/sequence.cpp
@@ -468,6 +468,13 @@ FrameInfo *SequenceFrame::getInfo() {
 	return _sequence->getFrameInfo(_frame);
 }
 
+Common::String SequenceFrame::getName() {
+	if (!_sequence)
+		error("SequenceFrame::getName: Invalid sequence!");
+
+	return _sequence->getName();
+}
+
 bool SequenceFrame::equal(const SequenceFrame *other) const {
 	return _sequence->getName() == other->_sequence->getName() && _frame == other->_frame;
 }
diff --git a/engines/lastexpress/data/sequence.h b/engines/lastexpress/data/sequence.h
index 7de4b2dfa4..25170993df 100644
--- a/engines/lastexpress/data/sequence.h
+++ b/engines/lastexpress/data/sequence.h
@@ -189,7 +189,7 @@ public:
 	uint32 getFrame() { return _frame; }
 	bool nextFrame();
 
-	Common::String getName() { return _sequence->getName(); }
+	Common::String getName();
 	FrameInfo *getInfo();
 
 	bool equal(const SequenceFrame *other) const;