TSAGE: Graphic fix for image flags affecting frame centroid location

1 files changed, 12 insertions, 2 deletions

diff --git a/engines/tsage/graphics.cpp b/engines/tsage/graphics.cpp
index 595c43a0bf..446c56662a 100644
--- a/engines/tsage/graphics.cpp
+++ b/engines/tsage/graphics.cpp
@@ -68,11 +68,21 @@ GfxSurface surfaceFromRes(const byte *imgData) {
 	Rect r(0, 0, READ_LE_UINT16(imgData), READ_LE_UINT16(imgData + 2));
 	GfxSurface s;
 	s.create(r.width(), r.height());
+	s._transColor = *(imgData + 8);
+
+	byte flags = imgData[9];
+	bool rleEncoded = (flags & 2) != 0;
+
+	// Figure out the centroid
 	s._centroid.x = READ_LE_UINT16(imgData + 4);
 	s._centroid.y = READ_LE_UINT16(imgData + 6);
-	s._transColor = *(imgData + 8);
 
-	bool rleEncoded = (imgData[9] & 2) != 0;
+	if (g_vm->getGameID() != GType_Ringworld) {
+		if (flags & 4)
+			s._centroid.x = r.width() - (s._centroid.x + 1);
+		if (flags & 8)
+			s._centroid.y = r.height() - (s._centroid.y + 1);
+	}
 
 	const byte *srcP = imgData + 10;
 	Graphics::Surface destSurface = s.lockSurface();