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80 lines
2.1 KiB
C++
80 lines
2.1 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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#ifndef MATH_LINE2D_H
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#define MATH_LINE2D_H
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#include "math/vector2d.h"
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namespace Math {
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class Line2d {
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public:
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Line2d();
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Line2d(const Vector2d &direction, const Vector2d &point);
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Line2d getPerpendicular(const Vector2d &point = Vector2d()) const;
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Vector2d getDirection() const;
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float getDistanceTo(const Vector2d &point, Vector2d *intersection) const;
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bool intersectsLine(const Line2d &line, Vector2d *pos) const;
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bool containsPoint(const Vector2d &point) const;
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float getYatX(float x) const;
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private:
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float _a, _b, _c;
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};
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class Segment2d {
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public:
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Segment2d();
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Segment2d(const Vector2d &begin, const Vector2d &end);
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Segment2d(const Segment2d &other);
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Vector2d begin() const;
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Vector2d end() const;
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Vector2d middle() const;
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Line2d getLine() const;
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Line2d getPerpendicular(const Vector2d &point = Vector2d()) const;
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bool containsPoint(const Vector2d &point) const;
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bool intersectsLine(const Line2d &line, Vector2d *pos);
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bool intersectsSegment(const Segment2d &line, Vector2d *pos);
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Segment2d &operator=(const Segment2d &other);
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private:
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Math::Vector2d _begin, _end;
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};
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}
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#endif
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