DIRECTOR: Lingo: Fix b_rollOver() implementation

3 files changed, 12 insertions, 2 deletions

diff --git a/engines/director/frame.cpp b/engines/director/frame.cpp
index b629e43705..f19c3221ab 100644
--- a/engines/director/frame.cpp
+++ b/engines/director/frame.cpp
@@ -1055,4 +1055,13 @@ uint16 Frame::getSpriteIDFromPos(Common::Point pos) {
 	return 0;
 }
 
+bool Frame::checkSpriteIntersection(uint16 spriteId, Common::Point pos) {
+	// Find first from front to back
+	for (int dr = _drawRects.size() - 1; dr >= 0; dr--)
+		if (_drawRects[dr]->spriteId == spriteId && _drawRects[dr]->rect.contains(pos))
+			return true;
+
+	return false;
+}
+
 } // End of namespace Director
diff --git a/engines/director/frame.h b/engines/director/frame.h
index 704319ba0d..575d6fdbdd 100644
--- a/engines/director/frame.h
+++ b/engines/director/frame.h
@@ -119,6 +119,8 @@ public:
 	void readChannel(Common::SeekableSubReadStreamEndian &stream, uint16 offset, uint16 size);
 	void prepareFrame(Score *score);
 	uint16 getSpriteIDFromPos(Common::Point pos);
+	bool checkSpriteIntersection(uint16 spriteId, Common::Point pos);
+
 
 private:
 	void playTransition(Score *score);
diff --git a/engines/director/lingo/lingo-builtins.cpp b/engines/director/lingo/lingo-builtins.cpp
index c94717ac74..d79b201a04 100644
--- a/engines/director/lingo/lingo-builtins.cpp
+++ b/engines/director/lingo/lingo-builtins.cpp
@@ -1234,9 +1234,8 @@ void Lingo::b_rollOver(int nargs) {
 	}
 
 	Common::Point pos = g_system->getEventManager()->getMousePos();
-	uint16 spriteId = frame->getSpriteIDFromPos(pos);
 
-	if (spriteId == arg)
+	if (frame->checkSpriteIntersection(arg, pos))
 		d.u.i = 1; // TRUE
 
 	g_lingo->push(d);