Files
OpenRA/OpenRA.Mods.RA/Activities/MoveAdjacentTo.cs

69 lines
1.9 KiB
C#
Executable File

#region Copyright & License Information
/*
* Copyright 2007-2011 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. For more information,
* see COPYING.
*/
#endregion
using System.Linq;
using OpenRA.Mods.RA.Move;
using OpenRA.Traits;
using OpenRA.Traits.Activities;
using OpenRA.FileFormats;
namespace OpenRA.Mods.RA.Activities
{
public class MoveAdjacentTo : Activity
{
readonly Target target;
public MoveAdjacentTo( Actor target )
{
this.target = Target.FromActor(target);
}
public MoveAdjacentTo( Target target )
{
this.target = target;
}
public override Activity Tick( Actor self )
{
if( IsCanceled || !target.IsValid) return NextActivity;
var mobile = self.Trait<Mobile>();
Pair<int2, SubCell>[] cells = new Pair<int2, SubCell>[] {};
if (target.IsActor)
cells = target.Actor.Trait<IOccupySpace>().OccupiedCells().ToArray();
if (cells.Length == 0)
cells = new OpenRA.FileFormats.Pair<int2, SubCell>[] {
Pair.New(Util.CellContaining(target.CenterLocation), SubCell.FullCell) };
var ps1 = new PathSearch( self.World, mobile.Info, self.Owner )
{
checkForBlocked = true,
heuristic = location => 0,
inReverse = true
};
foreach( var cell in cells )
{
ps1.AddInitialCell( cell.First );
if( ( mobile.toCell - cell.First ).LengthSquared <= 2 )
return NextActivity;
}
ps1.heuristic = PathSearch.DefaultEstimator( mobile.toCell );
var ps2 = PathSearch.FromPoint( self.World, mobile.Info, self.Owner, mobile.toCell, Util.CellContaining(target.CenterLocation), true );
var ret = self.World.WorldActor.Trait<PathFinder>().FindBidiPath( ps1, ps2 );
if( ret.Count > 0 )
ret.RemoveAt( 0 );
return Util.SequenceActivities( mobile.MoveTo( () => ret ), this );
}
}
}