diff options
Diffstat (limited to 'engines/titanic/star_control/daffine.cpp')
| -rw-r--r-- | engines/titanic/star_control/daffine.cpp | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/engines/titanic/star_control/daffine.cpp b/engines/titanic/star_control/daffine.cpp index 261d31070f..8cfd9ec612 100644 --- a/engines/titanic/star_control/daffine.cpp +++ b/engines/titanic/star_control/daffine.cpp @@ -80,7 +80,7 @@ void DAffine::clear() { // Source: https://en.wikipedia.org/wiki/Rotation_matrix void DAffine::setRotationMatrix(Axis axis, double angleDeg) { - clear(); + clear(); double sinVal = sin(angleDeg * Deg2Rad); double cosVal = cos(angleDeg * Deg2Rad); @@ -117,8 +117,9 @@ void DAffine::setRotationMatrix(Axis axis, double angleDeg) { //TODO: Check column 4 math DAffine DAffine::inverseTransform() const { - DAffine m; - //Inverse of rotation matrix is the transpose + DAffine m; + + // Inverse of rotation matrix is the transpose m._col1._x = _col1._x; m._col2._x = _col1._y; m._col3._x = _col1._z; @@ -130,14 +131,14 @@ DAffine DAffine::inverseTransform() const { m._col3._z = _col3._z; m._col4._x = -(_col4._x * m._col1._x - + _col4._y * m._col2._x - + _col4._z * m._col3._x); + + _col4._y * m._col2._x + + _col4._z * m._col3._x); m._col4._y = -(_col4._x * m._col1._y - + _col4._y * m._col2._y - + _col4._z * m._col3._y); + + _col4._y * m._col2._y + + _col4._z * m._col3._y); m._col4._z = -(_col4._x * m._col1._z - + _col4._y * m._col2._z - + _col4._z * m._col3._z); + + _col4._y * m._col2._z + + _col4._z * m._col3._z); return m; } |