42 lines
1.1 KiB
C#
42 lines
1.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2010 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 LICENSE.
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*/
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#endregion
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using OpenRA.Traits;
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using OpenRA.Traits.Activities;
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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 : CancelableActivity
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{
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Target Target;
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int Range;
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public Follow(Target target, int range)
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{
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Target = target;
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Range = range;
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}
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public override IActivity Tick( Actor self )
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{
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if (IsCanceled) return NextActivity;
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if (!Target.IsValid) return NextActivity;
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var inRange = ( Util.CellContaining( Target.CenterLocation ) - self.Location ).LengthSquared < Range * Range;
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if( inRange ) return this;
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var mobile = self.Trait<Mobile>();
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return Util.SequenceActivities( mobile.MoveWithinRange( Target, Range ), this );
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}
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}
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}
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