ZVISION: Create method for converting image space to working window space

2 files changed, 22 insertions, 0 deletions

diff --git a/engines/zvision/render_manager.cpp b/engines/zvision/render_manager.cpp
index 3f19cae6fe..c0554dc20a 100644
--- a/engines/zvision/render_manager.cpp
+++ b/engines/zvision/render_manager.cpp
@@ -338,6 +338,19 @@ const Common::Point RenderManager::screenSpaceToImageSpace(const Common::Point &
 	return newPoint;
 }
 
+const Common::Point RenderManager::imageSpaceToWorkingWindowSpace(const Common::Point &point) {
+	Common::Point newPoint(point);
+
+	RenderTable::RenderState state = _renderTable.getRenderState();
+	if (state == RenderTable::PANORAMA) {
+		newPoint += (Common::Point(_screenCenterX, 0) - _backgroundOffset);
+	} else if (state == RenderTable::TILT) {
+		newPoint += (Common::Point(0, _screenCenterY) - _backgroundOffset);
+	}
+
+	return newPoint;
+}
+
 RenderTable *RenderManager::getRenderTable() {
 	return &_renderTable;
 }
diff --git a/engines/zvision/render_manager.h b/engines/zvision/render_manager.h
index bb673e9929..0294d6a19f 100644
--- a/engines/zvision/render_manager.h
+++ b/engines/zvision/render_manager.h
@@ -173,6 +173,15 @@ public:
 	 * @return         Point in image coordinate space
 	 */
 	const Common::Point screenSpaceToImageSpace(const Common::Point &point);
+	/**
+	 * Converts a point in image coordinate space to ***PRE-WARP*** 
+	 * working window coordinate space
+	 *
+	 * @param point    Point in image coordinate space
+	 * @return         Point in PRE-WARP working window coordinate space
+	 */
+	const Common::Point imageSpaceToWorkingWindowSpace(const Common::Point &point);
+
 
 	RenderTable *getRenderTable();
 	uint32 getCurrentBackgroundOffset();