88 lines
2.5 KiB
C#
88 lines
2.5 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 System.Linq;
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using OpenRA.Mods.RA.Render;
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using OpenRA.Traits;
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using OpenRA.Traits.Activities;
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using System.Drawing;
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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 UnloadCargo : CancelableActivity
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{
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int2? ChooseExitTile(Actor self, Actor cargo)
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{
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// is anyone still hogging this tile?
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if (self.World.WorldActor.Trait<UnitInfluence>().GetUnitsAt(self.Location).Count() > 1)
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return null;
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var mobile = cargo.Trait<Mobile>();
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for (var i = -1; i < 2; i++)
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for (var j = -1; j < 2; j++)
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if ((i != 0 || j != 0) &&
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mobile.CanEnterCell(self.Location + new int2(i, j)))
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return self.Location + new int2(i, j);
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return null;
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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 we're a thing that can turn, turn to the
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// right facing for the unload animation
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var facing = self.TraitOrDefault<IFacing>();
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var unloadFacing = self.Info.Traits.Get<CargoInfo>().UnloadFacing;
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if (facing != null && facing.Facing != unloadFacing)
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return Util.SequenceActivities( new Turn(unloadFacing), this );
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// todo: handle the BS of open/close sequences, which are inconsistent,
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// for reasons that probably make good sense to the westwood guys.
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var cargo = self.Trait<Cargo>();
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if (cargo.IsEmpty(self))
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return NextActivity;
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var ru = self.TraitOrDefault<RenderUnit>();
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if (ru != null)
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ru.PlayCustomAnimation(self, "unload", null);
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var exitTile = ChooseExitTile(self, cargo.Peek(self));
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if (exitTile == null)
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return this;
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var actor = cargo.Unload(self);
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self.World.AddFrameEndTask(w =>
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{
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if (actor.Destroyed) return;
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w.Add(actor);
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var mobile = actor.Trait<Mobile>();
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mobile.SetPosition(actor, self.Location);
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actor.CancelActivity();
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actor.QueueActivity(mobile.MoveTo(exitTile.Value, 0));
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if (actor.Owner == self.World.LocalPlayer)
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{
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var line = actor.TraitOrDefault<DrawLineToTarget>();
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if (line != null)
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line.SetTargetSilently(self, Target.FromCell(exitTile.Value), Color.Green);
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}
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});
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return this;
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}
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}
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}
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