From f6cabfe8fe888e00388a815541084b0fa332a462 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Tue, 22 Jul 2008 21:00:01 +0000
Subject: DrumKit parser. Internal drumkit now used in events. This is the
 first milestone.

---
 src/velocity.cc | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/velocity.cc

(limited to 'src/velocity.cc')

diff --git a/src/velocity.cc b/src/velocity.cc
new file mode 100644
index 0000000..4ff398c
--- /dev/null
+++ b/src/velocity.cc
@@ -0,0 +1,59 @@
+/* -*- 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 General Public License as published by
+ *  the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU 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"
+
+Velocity::Velocity(unsigned int lower, unsigned int upper)
+{
+  this->lower = lower;
+  this->upper = upper;
+}
+
+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 = NULL;
+
+  float x = (float)rand() / (float)RAND_MAX;
+  float sum = 0.0;
+  
+  Samples::iterator i = samples.begin();
+  while(i != samples.end() && x > sum) {
+    sum += i->second;
+    sample = i->first;
+    i++;
+  }
+
+  return sample;
+}
-- 
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