112 lines
3.1 KiB
C#
112 lines
3.1 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.Linq;
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using OpenRA.GameRules;
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using OpenRA.Support;
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using OpenRA.Traits;
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namespace OpenRA
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{
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public static class WorldUtils
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{
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public static Actor ClosestTo(this IEnumerable<Actor> actors, Actor a)
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{
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return actors.ClosestTo(a.CenterPosition);
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}
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public static Actor ClosestTo(this IEnumerable<Actor> actors, WPos pos)
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{
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return actors.MinByOrDefault(a => (a.CenterPosition - pos).LengthSquared);
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}
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public static IEnumerable<Actor> FindActorsInCircle(this World world, WPos origin, WRange r)
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{
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using (new PerfSample("FindUnitsInCircle"))
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{
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// Target ranges are calculated in 2D, so ignore height differences
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var vec = new WVec(r, r, WRange.Zero);
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var rSq = r.Range * r.Range;
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return world.ActorMap.ActorsInBox(origin - vec, origin + vec).Where(
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a => (a.CenterPosition - origin).HorizontalLengthSquared <= rSq);
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}
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}
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public static bool HasVoices(this Actor a)
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{
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var selectable = a.Info.Traits.GetOrDefault<SelectableInfo>();
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return selectable != null && selectable.Voice != null;
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}
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public static bool HasVoice(this Actor a, string voice)
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{
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var v = GetVoices(a);
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return v != null && v.Voices.ContainsKey(voice);
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}
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public static SoundInfo GetVoices(this Actor a)
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{
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var selectable = a.Info.Traits.GetOrDefault<SelectableInfo>();
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if (selectable == null) return null;
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var v = selectable.Voice;
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return (v == null) ? null : a.World.Map.Rules.Voices[v.ToLowerInvariant()];
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}
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public static void PlayVoiceForOrders(this World w, Order[] orders)
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{
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// Find an actor with a phrase to say
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foreach (var o in orders)
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{
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if (o == null)
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continue;
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if (o.Subject.Destroyed)
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continue;
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foreach (var v in o.Subject.TraitsImplementing<IOrderVoice>())
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if (Sound.PlayVoice(v.VoicePhraseForOrder(o.Subject, o),
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o.Subject, o.Subject.Owner.Country.Race))
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return;
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}
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}
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public static void DoTimed<T>(this IEnumerable<T> e, Action<T> a, string text)
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{
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// Note - manual enumeration here for performance due to high call volume.
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var longTickThresholdInStopwatchTicks = PerfTimer.LongTickThresholdInStopwatchTicks;
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using (var enumerator = e.GetEnumerator())
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{
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var start = Stopwatch.GetTimestamp();
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while (enumerator.MoveNext())
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{
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a(enumerator.Current);
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var current = Stopwatch.GetTimestamp();
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if (current - start > longTickThresholdInStopwatchTicks)
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{
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PerfTimer.LogLongTick(start, current, text, enumerator.Current);
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start = Stopwatch.GetTimestamp();
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}
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else
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start = current;
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}
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}
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}
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public static bool AreMutualAllies(Player a, Player b)
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{
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return a.Stances[b] == Stance.Ally &&
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b.Stances[a] == Stance.Ally;
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}
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}
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}
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