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73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* Residual - A 3D game interpreter
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*
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* Residual is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* $URL$
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* $Id$
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*/
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#include "math/vector2d.h"
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#include "common/streamdebug.h"
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namespace Math {
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Vector2d::Matrix() :
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MatrixType<2, 1>() {
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}
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Vector2d::Matrix(float x, float y) :
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MatrixType<2, 1>() {
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setValue(0, x);
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setValue(1, y);
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}
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Vector2d::Matrix(const MatrixBase<2, 1> &vec) :
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MatrixType<2, 1>(vec) {
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}
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Vector2d::Matrix(const float *data) :
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MatrixType<2, 1>(data) {
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}
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void Vector2d::rotateAround(const Vector2d &point, const Angle &angle) {
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*this -= point;
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float cosa = angle.getCosine();
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float sina = angle.getSine();;
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float x = value(0) * cosa - value(1) * sina;
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value(1) = value(0) * sina + value(1) * cosa;
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value(0) = x;
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*this += point;
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}
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Angle Vector2d::getAngle() const {
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return Angle::arcTangent2(getY(), getX());
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}
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Vector3d Vector2d::toVector3d() const {
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Vector3d v(value(0), value(1), 0);
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return v;
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}
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}
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