1 files changed, 71 insertions, 0 deletions
diff --git a/engines/titanic/star_control/fvector.cpp b/engines/titanic/star_control/fvector.cpp
new file mode 100644
index 0000000000..aa99e8b4d1
--- /dev/null
+++ b/engines/titanic/star_control/fvector.cpp
@@ -0,0 +1,71 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "titanic/star_control/fvector.h"
+#include "titanic/star_control/star_control_sub6.h"
+#include "common/algorithm.h"
+#include "common/textconsole.h"
+
+namespace Titanic {
+
+void FVector::fn1(FVector *v) {
+	v->_x = (ABS(_x - _y) < 0.00001 && ABS(_y - _z) < 0.00001 &&
+		ABS(_x - _z) < 0.00001) ? -_x : _x;
+	v->_y = _y;
+	v->_z = _z;
+}
+
+void FVector::multiply(FVector *dest, const FVector *src) {
+	dest->_x = (src->_z * _y) - (_z * src->_y);
+	dest->_y = (src->_x * _z) - (_x * src->_z);
+	dest->_z = (src->_y * _x) - (_y * src->_x);
+}
+
+void FVector::fn3() {
+	double hyp = sqrt(_x * _x + _y * _y + _z * _z);
+	assert(hyp);
+
+	_x *= 1.0 / hyp;
+	_y *= 1.0 / hyp;
+	_z *= 1.0 / hyp;
+}
+
+double FVector::getDistance(const FVector *src) const {
+	double xd = src->_x - _x;
+	double yd = src->_y - _y;
+	double zd = src->_z - _z;
+
+	return sqrt(xd * xd + yd * yd + zd * zd);
+}
+
+void FVector::fn4(FVector *dest, const FVector *v1, const FVector *v2) {
+	FVector tempVector(v1->_x + v2->_x, v1->_y + v2->_y, v1->_z + v2->_z);
+	tempVector.fn3();
+
+	*dest = tempVector;
+}
+
+void FVector::fn5(FVector *dest, const CStarControlSub6 *sub6) const {
+	error("TODO: FVector::fn5");
+}
+
+} // End of namespace Titanic