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authorPaul Gilbert2017-06-02 20:29:51 -0400
committerPaul Gilbert2017-06-02 20:29:51 -0400
commit26ee9caebfed56c660df4ca9bbb09696f15baf65 (patch)
tree1477725bd81c5c21fd8be1519131c13e5b35ae72 /engines/titanic
parent10ada8b23b4b1b5050e94eca5818280ecc506a9a (diff)
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TITANIC: Fix calculations in CStarCamera fn2
Diffstat (limited to 'engines/titanic')
-rw-r--r--engines/titanic/star_control/star_camera.cpp24
-rw-r--r--engines/titanic/star_control/star_view.cpp2
2 files changed, 19 insertions, 7 deletions
diff --git a/engines/titanic/star_control/star_camera.cpp b/engines/titanic/star_control/star_camera.cpp
index fae519e1f1..392c53e202 100644
--- a/engines/titanic/star_control/star_camera.cpp
+++ b/engines/titanic/star_control/star_camera.cpp
@@ -479,20 +479,32 @@ void CStarCamera::fn1(CViewport *viewport, const FVector &v) {
}
void CStarCamera::fn2(FVector v1, FVector v2, FVector v3) {
+ // Calculations only done when the first marker is locked on
if (_matrixRow == -1) {
FVector tempV;
+ double val1, val2, val3, val4, val5;
+ double val6, val7, val8, val9;
+
+ val1 = _viewport._centerVector._y * v1._x;
tempV._z = _viewport._field10;
+ val2 = _viewport._centerVector._y * tempV._z * v3._x;
+ val3 = _viewport._centerVector._z * v1._y;
+ val4 = _viewport._centerVector._z * tempV._z;
+ val5 = val1 * v1._z / _viewport._centerVector._x;
v3._z = v1._z;
- tempV._x = _viewport._centerVector._z * v1._y * v1._z / _viewport._centerVector._x;
- v3._y = _viewport._centerVector._y * tempV._z * v3._x / _viewport._centerVector._x;
- v3._x = _viewport._centerVector._y * v1._x * v1._z / _viewport._centerVector._x - _viewport._valArray[2];
- tempV._y = _viewport._centerVector._z * tempV._z * v3._y / _viewport._centerVector._x;
- tempV._x = tempV._x - _viewport._valArray[2];
+ val6 = val4 * v3._y;
+ val7 = val3 * v1._z / _viewport._centerVector._x;
+ val8 = val6 / _viewport._centerVector._x;
+ val9 = val2 / _viewport._centerVector._x;
+ v3._x = val5 - _viewport._valArray[2];
+ v3._y = val7;
+ tempV._x = val9 - _viewport._valArray[2];
+ tempV._y = val8;
v3.normalize();
tempV.normalize();
- FMatrix matrix = _viewport.getOrientation();
+ DMatrix matrix = _viewport.getOrientation();
const FVector &pos = _viewport._position;
_mover->proc10(v3, tempV, pos, matrix);
diff --git a/engines/titanic/star_control/star_view.cpp b/engines/titanic/star_control/star_view.cpp
index 77724698e0..9b292d715b 100644
--- a/engines/titanic/star_control/star_view.cpp
+++ b/engines/titanic/star_control/star_view.cpp
@@ -379,7 +379,7 @@ void CStarView::lockStar() {
if (_starField && !_showingPhoto) {
CSurfaceArea surfaceArea(_videoSurface);
FVector v1, v2, v3;
- double val = _starField->fn5(&surfaceArea, &_camera, v1, v2, v3);
+ double val = _starField->fn5(&surfaceArea, &_camera, v1, v2, v3);
if (val > -1.0) {
v1 -= surfaceArea._centroid;