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/* 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.
*
*/
#ifndef TITANIC_FVECTOR_H
#define TITANIC_FVECTOR_H
#include "titanic/star_control/fpoint.h"
namespace Titanic {
enum Axis { X_AXIS, Y_AXIS, Z_AXIS };
class CStarControlSub6;
class DVector;
/**
* Floating point vector class.
* @remarks TODO: See if it can be merged with DVector
*/
class FVector {
public:
double _x, _y, _z;
public:
FVector() : _x(0), _y(0), _z(0) {}
FVector(double x, double y, double z) : _x(x), _y(y), _z(z) {}
FVector(const DVector &src);
/**
* Clears the vector
*/
void clear() {
_x = _y = _z = 0.0;
}
FVector fn1() const;
/**
* Calculates the cross-product between this matrix and a passed one
*/
FVector crossProduct(const FVector &src) const;
/**
* Normalizes the vector so the length from origin equals 1.0
*/
double normalize();
/**
* Adds two vectors together and then normalizes the result
*/
static const FVector *addAndNormalize(FVector &dest, const FVector &v1, const FVector &v2);
/**
* Returns the distance between a specified point and this one
*/
double getDistance(const FVector &src) const;
FVector fn5(const CStarControlSub6 *sub6) const;
/**
* Returns true if the passed vector equals this one
*/
bool operator==(const FVector &src) const {
return _x != src._x || _y != src._y || _z != src._z;
}
/**
* Returns true if the passed vector does not equal this one
*/
bool operator!=(const FVector &src) const {
return !operator==(src);
}
FVector operator+(const FVector &delta) const {
return FVector(_x + delta._x, _y + delta._y, _z + delta._z);
}
FVector operator-(const FVector &delta) const {
return FVector(_x - delta._x, _y - delta._y, _z - delta._z);
}
const FVector operator*(double right) const {
return FVector(_x * right, _y * right, _z * right);
}
void operator+=(const FVector &delta) {
_x += delta._x;
_y += delta._y;
_z += delta._z;
}
void operator-=(const FVector &delta) {
_x -= delta._x;
_y -= delta._y;
_z -= delta._z;
}
void operator+=(const FPoint &delta) {
_x += delta._x;
_y += delta._y;
}
void operator-=(const FPoint &delta) {
_x -= delta._x;
_y -= delta._y;
}
};
} // End of namespace Titanic
#endif /* TITANIC_FVECTOR_H */
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