62 lines
1.7 KiB
C#
Executable File
62 lines
1.7 KiB
C#
Executable File
#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 System.Linq;
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using OpenRA.Mods.RA.Move;
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using OpenRA.Traits;
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using OpenRA.Traits.Activities;
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using OpenRA.FileFormats;
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namespace OpenRA.Mods.RA.Activities
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{
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public class MoveAdjacentTo : Activity
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{
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readonly Actor target;
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public MoveAdjacentTo( Actor target )
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{
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this.target = target;
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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.Destroyed || !target.IsInWorld) return NextActivity;
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var mobile = self.Trait<Mobile>();
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var cells = target.Trait<IOccupySpace>().OccupiedCells().ToArray();
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if (cells.Length == 0)
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cells = new OpenRA.FileFormats.Pair<int2, SubCell>[] {
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Pair.New(target.Location, SubCell.FullCell) };
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var ps1 = new PathSearch( self.World, mobile.Info )
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{
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checkForBlocked = true,
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heuristic = location => 0,
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inReverse = true
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};
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foreach( var cell in cells )
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{
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ps1.AddInitialCell( cell.First );
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if( ( mobile.toCell - cell.First ).LengthSquared <= 2 )
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return NextActivity;
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}
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ps1.heuristic = PathSearch.DefaultEstimator( mobile.toCell );
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var ps2 = PathSearch.FromPoint( self.World, mobile.Info, mobile.toCell, target.Location, true );
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var ret = self.World.WorldActor.Trait<PathFinder>().FindBidiPath( ps1, ps2 );
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if( ret.Count > 0 )
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ret.RemoveAt( 0 );
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return Util.SequenceActivities( mobile.MoveTo( () => ret ), this );
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}
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}
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}
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