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/* dice.vala
*
* Copyright 2021 Gustav Hartvigsson <unknown@domain.org>
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* This file 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
using GLib;
/**
* A Simple Represetation of a dice.
*/
public class VQDR.Expression.Dice {
public int times { get; set; }
public int faces { get; set; }
public int modifier { get; set; }
public Dice (int times = 1, int faces = 6, int modifier = 0) {
this.times = times;
this.faces = faces;
this.modifier = modifier;
}
public int roll () {
if (faces <= 0) {
return modifier;
}
if (times <= 0) {
return modifier;
}
if (faces == 1) {
return times + modifier;
}
int retval = modifier;
for (size_t i = 1; i <= times; i++) {
int r = (VQDR.Common.Random.get_static_int () % faces).abs ();
retval += r;
}
return retval;
}
public string to_string () {
if ((times == 0) && (faces == 0)) {
return "0";
}
StringBuilder retval = new StringBuilder ();
if (times > 0) {
retval.append (times.to_string ()).append_c ('d').append (faces.to_string ());
}
if (modifier > 0) {
retval.append_c ('+').append (modifier.to_string ());
} else if (modifier < 0) {
retval.append (modifier.to_string ());
}
return retval.str;
}
}
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