92 lines
2.8 KiB
C#
92 lines
2.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
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* This file is part of OpenRA.
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*
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* OpenRA is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OpenRA is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
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*/
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#endregion
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using System.Linq;
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using OpenRA.GameRules;
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using OpenRA.Traits;
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using OpenRA.Traits.Activities;
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namespace OpenRA.Mods.RA.Activities
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{
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public class UnloadCargo : IActivity
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{
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public IActivity NextActivity { get; set; }
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bool isCanceled;
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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.traits.Get<UnitInfluence>().GetUnitsAt(self.Location).Count() > 1)
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return null;
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var mobile = cargo.traits.Get<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 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 unit = self.traits.GetOrDefault<Unit>();
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var unloadFacing = self.Info.Traits.Get<CargoInfo>().UnloadFacing;
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if (unit != null && unit.Facing != unloadFacing)
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return new Turn(unloadFacing) { NextActivity = 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.traits.Get<Cargo>();
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if (cargo.IsEmpty(self))
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return NextActivity;
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var ru = self.traits.GetOrDefault<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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w.Add(actor);
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actor.traits.Get<Mobile>().TeleportTo(actor, self.Location);
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actor.CancelActivity();
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actor.QueueActivity(new Move(exitTile.Value, 0));
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});
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return this;
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}
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public void Cancel(Actor self) { NextActivity = null; isCanceled = true; }
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}
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}
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