Files
OpenRA/OpenRA.Mods.RA/Activities/HeliReturn.cs
2010-05-20 18:54:44 +12:00

72 lines
2.3 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
* This file is part of OpenRA.
*
* OpenRA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenRA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System.Linq;
using OpenRA.Traits;
using OpenRA.Traits.Activities;
namespace OpenRA.Mods.RA.Activities
{
public class HeliReturn : IActivity
{
public IActivity NextActivity { get; set; }
bool isCanceled;
static Actor ChooseHelipad(Actor self)
{
var rearmBuildings = self.Info.Traits.Get<HelicopterInfo>().RearmBuildings;
return self.World.Queries.OwnedBy[self.Owner].FirstOrDefault(
a => rearmBuildings.Contains(a.Info.Name) &&
!Reservable.IsReserved(a));
}
public IActivity Tick(Actor self)
{
if (isCanceled) return NextActivity;
var dest = ChooseHelipad(self);
var initialFacing = self.Info.Traits.Get<UnitInfo>().InitialFacing;
if (dest == null)
return Util.SequenceActivities(
new Turn(initialFacing),
new HeliLand(true),
NextActivity);
var res = dest.traits.GetOrDefault<Reservable>();
if (res != null)
self.traits.Get<Helicopter>().reservation = res.Reserve(self);
var pi = dest.Info.Traits.GetOrDefault<ProductionInfo>();
var offset = pi != null ? pi.SpawnOffset : null;
var offsetVec = offset != null ? new float2(offset[0], offset[1]) : float2.Zero;
return Util.SequenceActivities(
new HeliFly(dest.CenterLocation + offsetVec),
new Turn(initialFacing),
new HeliLand(false),
new Rearm(),
NextActivity);
}
public void Cancel(Actor self) { isCanceled = true; NextActivity = null; }
}
}