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/*************************************************************************************
Copyright 2010 Philip Waldron
This file is part of BayRate.
BayRate 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 3 of the License, or
(at your option) any later version.
BayRate 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with BayRate. If not, see <http://www.gnu.org/licenses/>.
***************************************************************************************/
#include <iostream>
#include "game.h"
using namespace std;
game::game(void)
{
}
game::~game(void)
{
}
/****************************************************************
calc_handicapeqv ()
Calculates the equivalent rating difference for the handicap/komi
conditions of this game.
*****************************************************************/
void game::calc_handicapeqv() {
if (handicap == 0) {
handicapeqv = 0.580 - 0.0757 * komi;
sigma_px = 1.0649 - 0.0021976 * komi + 0.00014984 * komi * komi;
}
else if (handicap == 1) {
handicapeqv = 0.580 - 0.0757 * (komi);
sigma_px = 1.0649 - 0.0021976 * (komi) + 0.00014984 * (komi) * (komi);
}
else {
handicapeqv = handicap - 0.0757*komi;
sigma_px = -0.0035169 * komi;
switch (handicap) {
case 2:
sigma_px += 1.13672;
break;
case 3:
sigma_px += 1.18795;
break;
case 4:
sigma_px += 1.22841;
break;
case 5:
sigma_px += 1.27457;
break;
case 6:
sigma_px += 1.31978;
break;
case 7:
sigma_px += 1.35881;
break;
case 8:
sigma_px += 1.39782;
break;
case 9:
sigma_px += 1.43614;
break;
}
}
}
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