Coordinate.cpp

   1 /*****************************************************************************
   2  * Copyright (c) 2006 Russ Adams, Sean Eubanks, Asgard Contributors
   3  * This file is part of Asgard.
   4  *
   5  * Asgard is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Asgard is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Asgard; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  ****************************************************************************/
  19 #include <cmath>
  20 #include "Coordinate.h"
  21
  22 Coordinate::Coordinate()
  23 {
  24    //Initialize to zero
  25    this->x = 0;
  26    this->y = 0;
  27 }
  28
  29 Coordinate::Coordinate(int x, int y)
  30 {
  31    this->x = x;
  32    this->y = y;
  33 }
  34
  35 Coordinate::Coordinate(const Coordinate & c)
  36 {
  37    this->x = c.x;
  38    this->y = c.y;
  39 }
  40
  41 void Coordinate::operator+=(const Coordinate x)
  42 {
  43    this->x += x.x;
  44    this->y += x.y;
  45 }
  46
  47 void Coordinate::operator-=(const Coordinate x)
  48 {
  49    this->x -= x.x;
  50    this->y -= x.y;
  51 }
  52
  53 bool Coordinate::operator==(const Coordinate x) const
  54 {
  55    if (x.x != this->x) return false;
  56    if (x.y != this->y) return false;
  57    return true;
  58 }
  59
  60 bool Coordinate::operator!=(const Coordinate x) const
  61 {
  62    return !(*this == x);
  63 }
  64
  65 Coordinate Coordinate::operator+ (const Coordinate x) const
  66 {
  67    return Coordinate(this->x+x.x, this->y+x.y);
  68 }
  69
  70
  71 Coordinate Coordinate::operator- (const Coordinate x) const
  72 {
  73    return Coordinate(this->x-x.x, this->y-x.y);
  74 }
  75
  76 Coordinate Coordinate::operator+ (const int x) const
  77 {
  78    return Coordinate(this->x+x, this->y+x);
  79 }
  80
  81 Coordinate Coordinate::operator- (const int x) const
  82 {
  83    return Coordinate(this->x-x, this->y-x);
  84 }
  85
  86 Coordinate Coordinate::operator* (const int x) const
  87 {
  88    return Coordinate(this->x*x, this->y*x);
  89 }
  90
  91 Coordinate Coordinate::operator/ (const int x) const
  92 {
  93    return Coordinate(this->x/x, this->y/x);
  94 }
  95
  96 Coordinate operator+(const int r, const Coordinate& l)
  97 {
  98    return Coordinate(r+l.x,r+l.y);
  99 }
 100
 101 double distance(const Coordinate &l, const Coordinate &r)
 102 {
 103    return std::sqrt(std::pow(double(l.x - r.x), 2) + std::pow(double(l.y - r.y),2));
 104 }