105 lines
2.8 KiB
C#
105 lines
2.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using OpenRA.Activities;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Activities
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{
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public class TakeOff : Activity
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{
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readonly Aircraft aircraft;
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readonly IMove move;
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Target target;
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bool moveToRallyPoint;
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bool assignTargetOnFirstRun;
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public TakeOff(Actor self, Target target)
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{
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aircraft = self.Trait<Aircraft>();
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move = self.Trait<IMove>();
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this.target = target;
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}
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public TakeOff(Actor self)
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: this(self, Target.Invalid)
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{
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assignTargetOnFirstRun = true;
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}
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protected override void OnFirstRun(Actor self)
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{
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if (aircraft.ForceLanding)
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return;
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if (assignTargetOnFirstRun)
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{
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var host = aircraft.GetActorBelow();
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var rp = host != null ? host.TraitOrDefault<RallyPoint>() : null;
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var rallyPointDestination = rp != null ? rp.Location :
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(host != null ? self.World.Map.CellContaining(host.CenterPosition) : self.Location);
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target = Target.FromCell(self.World, rallyPointDestination);
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moveToRallyPoint = self.CurrentActivity.NextActivity == null && rallyPointDestination != self.Location;
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}
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// We are taking off, so remove reservation and influence in ground cells.
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aircraft.UnReserve();
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aircraft.RemoveInfluence();
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if (aircraft.Info.TakeoffSounds.Length > 0)
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Game.Sound.Play(SoundType.World, aircraft.Info.TakeoffSounds, self.World, aircraft.CenterPosition);
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}
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public override Activity Tick(Actor self)
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{
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// Refuse to take off if it would land immediately again.
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if (aircraft.ForceLanding)
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{
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Cancel(self);
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return NextActivity;
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}
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var dat = self.World.Map.DistanceAboveTerrain(aircraft.CenterPosition);
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if (dat < aircraft.Info.CruiseAltitude)
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{
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// If we're a VTOL, rise before flying forward
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if (aircraft.Info.VTOL)
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{
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Fly.VerticalTakeOffOrLandTick(self, aircraft, aircraft.Facing, aircraft.Info.CruiseAltitude);
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return this;
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}
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else
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{
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Fly.FlyTick(self, aircraft, aircraft.Facing, aircraft.Info.CruiseAltitude);
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return this;
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}
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}
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// Checking for NextActivity == null again in case another activity was queued while taking off
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if (moveToRallyPoint && NextActivity == null)
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{
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if (!aircraft.Info.VTOL && assignTargetOnFirstRun)
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return NextActivity;
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QueueChild(new AttackMoveActivity(self, () => move.MoveToTarget(self, target)));
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moveToRallyPoint = false;
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return this;
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}
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return NextActivity;
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}
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}
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}
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