1 files changed, 10 insertions, 0 deletions
diff --git a/engines/zvision/render_manager.h b/engines/zvision/render_manager.h
index 8731675ef6..7d44a37726 100644
--- a/engines/zvision/render_manager.h
+++ b/engines/zvision/render_manager.h
@@ -55,12 +55,18 @@ private:
 
 	Common::SeekableReadStream *_currentBackground;
 	Common::Point _backgroundOffset;
+	uint16 _backgroundWidth;
+	uint16 _backgroundHeight;
+
+	int _backgroundInverseVelocity;
+	uint _accumulatedVelocityMilliseconds;
 
 	Video::VideoDecoder *_currentVideo;
 	byte *_scaledVideoFrameBuffer;
 
 public:
 	void initialize();
+	void update(uint deltaTimeInMillis);
 
 	/**
 	 * Blits the image or a portion of the image to the screen. Actual screen updates won't happen until the end of the frame.
@@ -92,6 +98,10 @@ public:
 	 */
 	void setBackgroundImage(const Common::String &fileName);
 
+	void setBackgroundPosition(int offset);
+
+	void setBackgroundVelocity(int velocity);
+
 	const Common::Point screenSpaceToImageSpace(const Common::Point &point);
 
 	RenderTable *getRenderTable();