79 lines
1.5 KiB
C#
79 lines
1.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Drawing;
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using OpenRA.Primitives;
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namespace OpenRA.Support
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{
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public class PerfItem
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{
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public readonly Color C;
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public readonly string Name;
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double[] samples = new double[100];
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public double Val = 0.0;
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int head = 1, tail = 0;
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public bool HasNormalTick = true;
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public PerfItem(string name, Color c)
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{
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Name = name;
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C = c;
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}
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public void Tick()
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{
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samples[head++] = Val;
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if (head == samples.Length) head = 0;
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if (head == tail && ++tail == samples.Length) tail = 0;
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Val = 0.0;
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}
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public IEnumerable<double> Samples()
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{
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var n = head;
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while (n != tail)
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{
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--n;
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if (n < 0) n = samples.Length - 1;
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yield return samples[n];
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}
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}
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public double Average(int count)
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{
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var i = 0;
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var n = head;
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double sum = 0;
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while (i < count && n != tail)
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{
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if (--n < 0) n = samples.Length - 1;
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sum += samples[n];
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i++;
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}
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return i == 0 ? sum : sum / i;
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}
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public double LastValue
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{
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get
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{
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var n = head;
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if (--n < 0) n = samples.Length - 1;
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return samples[n];
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}
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}
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}
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}
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