00001 00002 // 00003 // SFML - Simple and Fast Multimedia Library 00004 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com) 00005 // 00006 // This software is provided 'as-is', without any express or implied warranty. 00007 // In no event will the authors be held liable for any damages arising from the use of this software. 00008 // 00009 // Permission is granted to anyone to use this software for any purpose, 00010 // including commercial applications, and to alter it and redistribute it freely, 00011 // subject to the following restrictions: 00012 // 00013 // 1. The origin of this software must not be misrepresented; 00014 // you must not claim that you wrote the original software. 00015 // If you use this software in a product, an acknowledgment 00016 // in the product documentation would be appreciated but is not required. 00017 // 00018 // 2. Altered source versions must be plainly marked as such, 00019 // and must not be misrepresented as being the original software. 00020 // 00021 // 3. This notice may not be removed or altered from any source distribution. 00022 // 00024 00025 00029 template <typename T> 00030 Rect<T>::Rect() : 00031 Left (0), 00032 Top (0), 00033 Right (0), 00034 Bottom(0) 00035 { 00036 00037 } 00038 00039 00043 template <typename T> 00044 Rect<T>::Rect(T left, T top, T right, T bottom) : 00045 Left (left), 00046 Top (top), 00047 Right (right), 00048 Bottom(bottom) 00049 { 00050 00051 } 00052 00053 00057 template <typename T> 00058 Vector2<T> Rect<T>::GetSize() const 00059 { 00060 return Vector2<T>(Right - Left, Bottom - Top); 00061 } 00062 00063 00067 template <typename T> 00068 Vector2<T> Rect<T>::GetCenter() const 00069 { 00070 return Vector2<T>((Left + Right) / 2, (Top + Bottom) / 2); 00071 } 00072 00073 00077 template <typename T> 00078 void Rect<T>::Offset(T offsetX, T offsetY) 00079 { 00080 Left += offsetX; 00081 Right += offsetX; 00082 Top += offsetY; 00083 Bottom += offsetY; 00084 } 00085 00086 00090 template <typename T> 00091 void Rect<T>::Offset(const Vector2<T>& offset) 00092 { 00093 Offset(offset.x, offset.y); 00094 } 00095 00096 00100 template <typename T> 00101 bool Rect<T>::Contains(T x, T y) const 00102 { 00103 return (x >= Left) && (x <= Right) && (y >= Top) && (y <= Bottom); 00104 } 00105 00106 00110 template <typename T> 00111 bool Rect<T>::Contains(const Vector2<T>& point) const 00112 { 00113 return Contains(point.x, point.y); 00114 } 00115 00116 00120 template <typename T> 00121 bool Rect<T>::Intersects(const Rect<T>& rectangle) const 00122 { 00123 // Compute overlapping rect 00124 Rect<T> overlapping(std::max(Left, rectangle.Left), 00125 std::max(Top, rectangle.Top), 00126 std::min(Right, rectangle.Right), 00127 std::min(Bottom, rectangle.Bottom)); 00128 00129 // If overlapping rect is valid, then there is intersection 00130 return (overlapping.Left < overlapping.Right) && (overlapping.Top < overlapping.Bottom); 00131 } 00132 00133 00138 template <typename T> 00139 bool Rect<T>::Intersects(const Rect<T>& rectangle, Rect<T>& intersection) const 00140 { 00141 // Compute overlapping rect 00142 Rect<T> overlapping(std::max(Left, rectangle.Left), 00143 std::max(Top, rectangle.Top), 00144 std::min(Right, rectangle.Right), 00145 std::min(Bottom, rectangle.Bottom)); 00146 00147 // If overlapping rect is valid, then there is intersection 00148 if ((overlapping.Left < overlapping.Right) && (overlapping.Top < overlapping.Bottom)) 00149 { 00150 intersection = overlapping; 00151 return true; 00152 } 00153 else 00154 { 00155 intersection = Rect<T>(0, 0, 0, 0); 00156 return false; 00157 } 00158 }
:: Copyright © 2007-2008 Laurent Gomila, all rights reserved :: Documentation generated by doxygen 1.5.2 ::