TITANIC: dvect work, replace fn4 with getFrameTransform

This function was using two vectors one as a frame rotation and
the other as a vector/point rotation.

This function is only used in when you click on a star in starview.

3 files changed, 9 insertions, 4 deletions

diff --git a/engines/titanic/star_control/dvector.cpp b/engines/titanic/star_control/dvector.cpp
index 86396c9945..93e52b379d 100644
--- a/engines/titanic/star_control/dvector.cpp
+++ b/engines/titanic/star_control/dvector.cpp
@@ -84,7 +84,7 @@ DVector DVector::getAnglesAsVect() const {
 	return dest;
 }
 
-DAffine DVector::fn4(const DVector &v) {
+DAffine DVector::getFrameTransform(const DVector &v) {
 	DAffine matrix1, matrix2, matrix3, matrix4;
 
 	DVector vector1 = getAnglesAsVect();
diff --git a/engines/titanic/star_control/dvector.h b/engines/titanic/star_control/dvector.h
index b37c8bb851..d0a87be412 100644
--- a/engines/titanic/star_control/dvector.h
+++ b/engines/titanic/star_control/dvector.h
@@ -67,7 +67,12 @@ public:
          * 3. z component output of v is the 4-quadrant angle that z makes with x (Y axis rotation)
 	 */
 	DVector getAnglesAsVect() const;
-	DAffine fn4(const DVector &v);
+
+	/**
+         * Returns a matrix that contains the frame rotation based on this vector and 
+	 * a vector rotation based on input vector v
+	 */
+	DAffine getFrameTransform(const DVector &v);
 	DAffine fn5() const;
 
 	/**
diff --git a/engines/titanic/star_control/unmarked_camera_mover.cpp b/engines/titanic/star_control/unmarked_camera_mover.cpp
index c950baab5e..c92ed2bc11 100644
--- a/engines/titanic/star_control/unmarked_camera_mover.cpp
+++ b/engines/titanic/star_control/unmarked_camera_mover.cpp
@@ -44,10 +44,10 @@ void CUnmarkedCameraMover::moveTo(const FVector &srcV, const FVector &destV, con
 void CUnmarkedCameraMover::proc10(const FVector &v1, const FVector &v2, const FVector &v3, const FMatrix &m) {
 	if (isLocked())
 		decLockCount();
-
+	//TODO: v3 is unused
 	DVector vector1 = v1;
 	DVector vector2 = v2;
-	DAffine matrix1 = vector2.fn4(vector1);
+	DAffine matrix1 = vector2.getFrameTransform(vector1);
 	DAffine matrix2 = matrix1.compose(m);
 
 	_autoMover.proc3(m, matrix2);