122 lines
2.5 KiB
C++
122 lines
2.5 KiB
C++
/*
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* Copyright 2019 University of Toronto
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Authors: Mario Badr, Sameh Attia and Tanner Young-Schultz
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*/
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#ifndef EZGL_POINT_HPP
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#define EZGL_POINT_HPP
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namespace ezgl {
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/**
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* Represents a two-dimensional point.
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*/
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class point2d {
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public:
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/**
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* Create a point at the given x and y position.
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*/
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point2d(double x_coord, double y_coord) : x(x_coord), y(y_coord)
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{
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}
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/**
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* Location of the x-coordinate.
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*/
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double x = 0.0;
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/**
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* Location of the y-coordinate.
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*/
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double y = 0.0;
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/**
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* Test for equality.
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*/
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friend bool operator==(point2d const &lhs, point2d const &rhs)
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{
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return (lhs.x == rhs.x) && (lhs.y == rhs.y);
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}
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/**
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* Test for inequality.
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*/
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friend bool operator!=(point2d const &lhs, point2d const &rhs)
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{
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return !(lhs == rhs);
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}
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/**
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* Create a new point that is the sum of two points.
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*/
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friend point2d operator+(point2d const &lhs, point2d const &rhs)
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{
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return {lhs.x + rhs.x, lhs.y + rhs.y};
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}
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/**
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* Add one point to another point.
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*/
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friend point2d &operator+=(point2d &lhs, point2d const &rhs)
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{
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lhs.x += rhs.x;
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lhs.y += rhs.y;
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return lhs;
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}
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/**
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* Create a new point that is the difference of two points.
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*/
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friend point2d operator-(point2d const &lhs, point2d const &rhs)
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{
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return {lhs.x - rhs.x, lhs.y - rhs.y};
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}
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/**
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* Subtract one point from another point.
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*/
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friend point2d &operator-=(point2d &lhs, point2d const &rhs)
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{
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lhs.x -= rhs.x;
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lhs.y -= rhs.y;
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return lhs;
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}
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/**
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* Create a new point that is the product of two points.
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*/
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friend point2d operator*(point2d const &lhs, point2d const &rhs)
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{
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return {lhs.x * rhs.x, lhs.y * rhs.y};
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}
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/**
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* Multiply one point with another point.
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*/
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friend point2d &operator*=(point2d &lhs, point2d const &rhs)
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{
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lhs.x *= rhs.x;
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lhs.y *= rhs.y;
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return lhs;
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}
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};
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}
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#endif //EZGL_POINT_HPP
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