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Added radius method.

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This commit is contained in:
Chris Laurel 2001-04-27 07:02:49 +00:00
parent 7cd3279581
commit 22deda23c2
2 changed files with 31 additions and 0 deletions
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24
src/selection.cpp Normal file
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@ -0,0 +1,24 @@
// selection.cpp
//
// Copyright (C) 2001, Chris Laurel <claurel@shatters.net>
//
// 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 2
// of the License, or (at your option) any later version.
#include "astro.h"
#include "selection.h"
double Selection::radius() const
{
if (star != NULL)
return star->getRadius();
else if (body != NULL)
return body->getRadius();
else if (galaxy != NULL)
return astro::lightYearsToKilometers(galaxy->getRadius());
else
return 0.0;
}

7
src/selection.h
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@ -10,6 +10,11 @@
#ifndef _SELECTION_H_
#define _SELECTION_H_
#include "star.h"
#include "body.h"
#include "galaxy.h"
class Selection
{
public:
@ -20,12 +25,14 @@ class Selection
~Selection() {};
bool empty() { return star == NULL && body == NULL && galaxy == NULL; };
double radius() const;
Star* star;
Body* body;
Galaxy* galaxy;
};
inline bool operator==(const Selection& s0, const Selection& s1)
{
return s0.star == s1.star && s0.body == s1.body && s0.galaxy == s1.galaxy;