blob: a983692b313e244353e4bf86827cfbf1f1fc7cd6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* -*- Mode: c++ -*- */
/***************************************************************************
* velocityfilter.cc
*
* Sun May 12 16:01:41 CEST 2019
* Copyright 2019 André Nusser
* andre.nusser@googlemail.com
****************************************************************************/
/*
* 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 "velocityfilter.h"
#include "random.h"
#include "settings.h"
VelocityFilter::VelocityFilter(Settings& settings, Random& random)
: settings(settings), random(random)
{
}
bool VelocityFilter::filter(event_t& event, size_t pos)
{
if (settings.enable_velocity_modifier.load())
{
float mean = event.velocity;
float stddev = settings.velocity_stddev.load();
// the 30.0f were determined empirically
event.velocity += random.normalDistribution(mean, stddev / 30.0f);
}
return true;
}
|
