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68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM 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 program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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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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