From 73278c3f9f0157e1adf19134eceeb65eec3e37eb Mon Sep 17 00:00:00 2001
From: Thierry Crozat
Date: Sun, 5 Nov 2017 02:36:45 +0000
Subject: SUPERNOVA: Replace a class variable used in a single function by a
 local variable

---
 engines/supernova/supernova.cpp | 12 +++++++-----
 engines/supernova/supernova.h   |  1 -
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/engines/supernova/supernova.cpp b/engines/supernova/supernova.cpp
index c693f9e34b..6dda5657ff 100644
--- a/engines/supernova/supernova.cpp
+++ b/engines/supernova/supernova.cpp
@@ -104,7 +104,6 @@ SupernovaEngine::SupernovaEngine(OSystem *syst)
 	, _brightness(255)
 	, _menuBrightness(255)
 	, _imageIndex(0)
-	, _sectionIndex(0)
 	, _delay(33)
 	, _textSpeed(kTextSpeed[2])
 	, _screenWidth(320)
@@ -391,10 +390,13 @@ void SupernovaEngine::playSoundMod(int filenumber)
 }
 
 void SupernovaEngine::renderImage(MSNImageDecoder &image, int section) {
-	_sectionIndex = section;
-
-	if (section > 128)
+	// Note: inverting means we are removing the section. So we should get the rect for that
+	// section but draw the background (section 0) instead.
+	bool invert = false;
+	if (section > 128) {
 		section -= 128;
+		invert = true;
+	}
 	if (section > image._numSections - 1)
 		return;
 
@@ -424,7 +426,7 @@ void SupernovaEngine::renderImage(MSNImageDecoder &image, int section) {
 	}
 
 	uint offset = image._section[section].y1 * image._pitch + image._section[section].x1;
-	if (_sectionIndex > 128)
+	if (invert)
 		section = 0;
 
 	_system->copyRectToScreen(static_cast<const byte *>(image._sectionSurfaces[section]->getPixels()) + offset,
diff --git a/engines/supernova/supernova.h b/engines/supernova/supernova.h
index 8ba298c751..16c98887b0 100644
--- a/engines/supernova/supernova.h
+++ b/engines/supernova/supernova.h
@@ -108,7 +108,6 @@ public:
 	Common::String _nullString;
 
 	byte _imageIndex;
-	byte _sectionIndex;
 	byte _menuBrightness;
 	byte _brightness;
 	uint _timePaused;
-- 
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