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deps/include/Box2D/Common/b2Stat.cpp

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+/*
+* Copyright (c) 2013 Google, Inc.
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 1. The origin of this software must not be misrepresented; you must not
+* claim that you wrote the original software. If you use this software
+* in a product, an acknowledgment in the product documentation would be
+* appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+* misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+*/
+#include "b2Stat.h"
+
+#include <algorithm>
+#include <cfloat>
+
+b2Stat::b2Stat()
+{
+	Clear();
+}
+
+void b2Stat::Record( float32 t )
+{
+	m_total += t;
+	m_min = std::min(m_min,t);
+	m_max = std::max(m_max,t);
+	m_count++;
+}
+
+int b2Stat::GetCount() const
+{
+	return m_count;
+}
+
+float32 b2Stat::GetMean() const
+{
+	if (m_count == 0)
+	{
+		return 0.0f;
+	}
+	return (float32)(m_total / m_count);
+}
+
+float32 b2Stat::GetMin() const
+{
+	return m_min;
+}
+
+float32 b2Stat::GetMax() const
+{
+	return m_max;
+}
+
+void b2Stat::Clear()
+{
+	m_count = 0;
+	m_total = 0;
+	m_min = FLT_MAX;
+	m_max = -FLT_MAX;
+}
+