97 lines
2.4 KiB
C#
97 lines
2.4 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 System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA.Activities
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{
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public class UnloadCargo : Activity
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{
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readonly Actor self;
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readonly Cargo cargo;
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readonly Cloak cloak;
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readonly bool unloadAll;
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public UnloadCargo(Actor self, bool unloadAll)
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{
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this.self = self;
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cargo = self.Trait<Cargo>();
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cloak = self.TraitOrDefault<Cloak>();
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this.unloadAll = unloadAll;
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}
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public CPos? ChooseExitCell(Actor passenger)
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{
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var pos = passenger.Trait<IPositionable>();
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return cargo.CurrentAdjacentCells
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.Shuffle(self.World.SharedRandom)
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.Cast<CPos?>()
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.FirstOrDefault(c => pos.CanEnterCell(c.Value));
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}
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IEnumerable<CPos> BlockedExitCells(Actor passenger)
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{
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var pos = passenger.Trait<IPositionable>();
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// Find the cells that are blocked by transient actors
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return cargo.CurrentAdjacentCells
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.Where(c => pos.CanEnterCell(c, null, true) != pos.CanEnterCell(c, null, false));
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}
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public override Activity Tick(Actor self)
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{
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if (IsCanceled || cargo.IsEmpty(self))
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return NextActivity;
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if (cloak != null && cloak.Info.UncloakOnUnload)
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cloak.Uncloak();
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var actor = cargo.Peek(self);
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var spawn = self.CenterPosition;
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var exitCell = ChooseExitCell(actor);
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if (exitCell == null)
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{
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foreach (var blocker in BlockedExitCells(actor).SelectMany(self.World.ActorMap.GetUnitsAt))
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{
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foreach (var nbm in blocker.TraitsImplementing<INotifyBlockingMove>())
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nbm.OnNotifyBlockingMove(blocker, self);
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}
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return Util.SequenceActivities(new Wait(10), this);
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}
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cargo.Unload(self);
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self.World.AddFrameEndTask(w =>
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{
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if (actor.Destroyed)
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return;
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var move = actor.Trait<IMove>();
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var pos = actor.Trait<IPositionable>();
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w.Add(actor);
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actor.CancelActivity();
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pos.SetVisualPosition(actor, spawn);
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actor.QueueActivity(move.MoveIntoWorld(actor, exitCell.Value));
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actor.SetTargetLine(Target.FromCell(exitCell.Value), Color.Green, false);
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});
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if (!unloadAll || cargo.IsEmpty(self))
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return NextActivity;
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return this;
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}
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}
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}
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