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author | neoraider <devnull@localhost> | 2008-05-20 11:55:04 +0200 |
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committer | neoraider <devnull@localhost> | 2008-05-20 11:55:04 +0200 |
commit | 5bb27d2b6d7915f03fd7e39444a2ff0fac537672 (patch) | |
tree | 16504dbcadf71afd3be79977d3eda2e0a562ed79 /src/Math/Vertex2D.cpp | |
parent | 094c72221ea15615b4bcdc31a4acbb4e5c67817a (diff) | |
download | zoomedit-5bb27d2b6d7915f03fd7e39444a2ff0fac537672.tar zoomedit-5bb27d2b6d7915f03fd7e39444a2ff0fac537672.zip |
zoomedit:
* Added 2D vector maths
* Made rooms selectable
Diffstat (limited to 'src/Math/Vertex2D.cpp')
-rw-r--r-- | src/Math/Vertex2D.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/Math/Vertex2D.cpp b/src/Math/Vertex2D.cpp new file mode 100644 index 0000000..d64317a --- /dev/null +++ b/src/Math/Vertex2D.cpp @@ -0,0 +1,61 @@ +/* + * Vertex2D.cpp + * + * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de> + * + * 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 3 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, see <http://www.gnu.org/licenses/>. + */ + +#include "Vertex2D.h" +#include <cmath> + +namespace ZoomEdit { +namespace Math { + +float Vertex2D::distanceSq(const Vertex2D &v) const { + return (x - v.x)*(x - v.x) + (y - v.y)*(y - v.y); +} + +float Vertex2D::distance(const Vertex2D &v) const { + return std::sqrt(distanceSq(v)); +} + +Vector2D Vertex2D::operator-(const Vertex2D &v) const { + return Vector2D(x - v.x, y - v.y); +} + +Vertex2D Vertex2D::operator+(const Vector2D &v) const { + return Vertex2D(x + v.getX(), y + v.getY()); +} + +Vertex2D Vertex2D::operator-(const Vector2D &v) const { + return Vertex2D(x - v.getX(), y - v.getY()); +} + +Vertex2D& Vertex2D::operator+=(const Vector2D &v) { + x += v.getX(); + y += v.getY(); + + return *this; +} + +Vertex2D& Vertex2D::operator-=(const Vector2D &v) { + x -= v.getX(); + y -= v.getY(); + + return *this; +} + +} +} |