Files
OpenRA/OpenRA.Game/Traits/ActivityUtils.cs
2017-01-22 20:39:17 +01:00

61 lines
1.7 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version. For more
* information, see COPYING.
*/
#endregion
using System.Diagnostics;
using System.Linq;
using OpenRA.Activities;
using OpenRA.Support;
namespace OpenRA.Traits
{
public static class ActivityUtils
{
public static Activity RunActivity(Actor self, Activity act)
{
// PERF: If there are no activities we can bail straight away and save ourselves a call to
// Stopwatch.GetTimestamp.
if (act == null)
return act;
// PERF: This is a hot path and must run with minimal added overhead.
// Calling Stopwatch.GetTimestamp is a bit expensive, so we enumerate manually to allow us to call it only
// once per iteration in the normal case.
// See also: DoTimed
var longTickThresholdInStopwatchTicks = PerfTimer.LongTickThresholdInStopwatchTicks;
var start = Stopwatch.GetTimestamp();
while (act != null)
{
var prev = act;
act = act.TickOuter(self);
var current = Stopwatch.GetTimestamp();
if (current - start > longTickThresholdInStopwatchTicks)
{
PerfTimer.LogLongTick(start, current, "Activity", prev);
start = Stopwatch.GetTimestamp();
}
else
start = current;
if (act == prev || act == prev.ParentActivity)
break;
}
return act;
}
public static Activity SequenceActivities(params Activity[] acts)
{
return acts.Reverse().Aggregate(
(next, a) => { a.Queue(next); return a; });
}
}
}