From 5bb27d2b6d7915f03fd7e39444a2ff0fac537672 Mon Sep 17 00:00:00 2001
From: neoraider <devnull@localhost>
Date: Tue, 20 May 2008 09:55:04 +0000
Subject: zoomedit: * Added 2D vector maths * Made rooms selectable

---
 src/Math/Vector2D.cpp | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 src/Math/Vector2D.cpp

(limited to 'src/Math/Vector2D.cpp')

diff --git a/src/Math/Vector2D.cpp b/src/Math/Vector2D.cpp
new file mode 100644
index 0000000..78f536b
--- /dev/null
+++ b/src/Math/Vector2D.cpp
@@ -0,0 +1,83 @@
+/*
+ * Vector2D.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 "Vector2D.h"
+#include <cmath>
+
+namespace ZoomEdit {
+namespace Math {
+
+float Vector2D::lengthSq() const {
+  return x*x + y*y;
+}
+
+float Vector2D::length() const {
+  return std::sqrt(lengthSq());
+}
+
+Vector2D Vector2D::operator+(const Vector2D &v) const {
+  return Vector2D(x + v.x, y + v.y);
+}
+
+Vector2D Vector2D::operator-(const Vector2D &v) const {
+  return Vector2D(x - v.x, y - v.y);
+}
+
+float Vector2D::operator*(const Vector2D &v) const {
+  return (x*v.x + y*v.y);
+}
+
+Vector2D Vector2D::operator*(float f) const {
+  return Vector2D(x*f, y*f);
+}
+
+Vector2D Vector2D::operator/(float f) const {
+  return Vector2D(x/f, y/f);
+}
+
+Vector2D& Vector2D::operator+=(const Vector2D &v) {
+  x += v.x;
+  y += v.y;
+  
+  return *this;
+}
+
+Vector2D& Vector2D::operator-=(const Vector2D &v) {
+  x -= v.x;
+  y -= v.y;
+  
+  return *this;
+}
+
+Vector2D& Vector2D::operator*=(float f) {
+  x *= f;
+  y *= f;
+  
+  return *this;
+}
+
+Vector2D& Vector2D::operator/=(float f) {
+  x /= f;
+  y /= f;
+  
+  return *this;
+}
+
+}
+}
-- 
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