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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* velocity.cc
*
* Tue Jul 22 18:04:58 CEST 2008
* Copyright 2008 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo 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.
*
* DrumGizmo 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 DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "velocity.h"
#include <stdlib.h>
Velocity::Velocity(unsigned int lower, unsigned int upper)
: lower{lower}
, upper{upper}
, samples{}
{
}
void Velocity::addSample(Sample* sample, float probability)
{
if(samples.find(sample) != samples.end())
{
samples[sample] += probability;
}
else
{
samples[sample] = probability;
}
}
Sample* Velocity::getSample()
{
Sample* sample{nullptr};
float x = rand.floatInRange(0, 1);
float sum = 0.0;
for (auto const & pair: samples)
{
if (x > sum)
{
break;
}
sum += pair.second;
sample = pair.first;
}
return sample;
}
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