49 lines
1.2 KiB
C#
49 lines
1.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 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 OpenRA.Traits;
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using OpenRA.Mods.RA.Move;
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namespace OpenRA.Mods.RA.Activities
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{
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public class Follow : Activity
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{
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Target target;
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int range;
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int nextPathTime;
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const int delayBetweenPathingAttempts = 20;
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const int delaySpread = 5;
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public Follow(Target target, int range)
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{
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this.target = target;
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this.range = range;
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}
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public override Activity Tick(Actor self)
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{
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if (IsCanceled || !target.IsValid)
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return NextActivity;
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var inRange = (target.CenterPosition.ToCPos() - self.Location).LengthSquared < range * range;
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if (inRange || --nextPathTime > 0)
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return this;
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nextPathTime = self.World.SharedRandom.Next(delayBetweenPathingAttempts - delaySpread,
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delayBetweenPathingAttempts + delaySpread);
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var mobile = self.Trait<Mobile>();
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return Util.SequenceActivities(mobile.MoveWithinRange(target, new WRange(1024*range)), this);
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}
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}
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}
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