78 lines
2.7 KiB
C#
78 lines
2.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2017 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.Linq;
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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 FlyAttack : Activity
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{
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readonly Target target;
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readonly Aircraft aircraft;
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readonly AttackPlane attackPlane;
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readonly bool autoReloads;
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int ticksUntilTurn;
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public FlyAttack(Actor self, Target target)
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{
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this.target = target;
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aircraft = self.Trait<Aircraft>();
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attackPlane = self.TraitOrDefault<AttackPlane>();
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ticksUntilTurn = attackPlane.AttackPlaneInfo.AttackTurnDelay;
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autoReloads = self.TraitsImplementing<AmmoPool>().All(p => p.AutoReloads);
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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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if (!target.IsValidFor(self))
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return NextActivity;
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// If all valid weapons have depleted their ammo and RearmBuilding is defined, return to RearmBuilding to reload and then resume the activity
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if (!autoReloads && aircraft.Info.RearmBuildings.Any() && attackPlane.Armaments.All(x => x.IsTraitPaused || !x.Weapon.IsValidAgainst(target, self.World, self)))
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return ActivityUtils.SequenceActivities(new ReturnToBase(self, aircraft.Info.AbortOnResupply), this);
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if (attackPlane != null)
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attackPlane.DoAttack(self, target);
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if (ChildActivity == null)
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{
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if (IsCanceled)
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return NextActivity;
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// TODO: This should fire each weapon at its maximum range
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if (attackPlane != null && target.IsInRange(self.CenterPosition, attackPlane.Armaments.Where(Exts.IsTraitEnabled).Select(a => a.Weapon.MinRange).Min()))
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ChildActivity = ActivityUtils.SequenceActivities(new FlyTimed(ticksUntilTurn, self), new Fly(self, target), new FlyTimed(ticksUntilTurn, self));
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else
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ChildActivity = ActivityUtils.SequenceActivities(new Fly(self, target), new FlyTimed(ticksUntilTurn, self));
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// HACK: This needs to be done in this round-about way because TakeOff doesn't behave as expected when it doesn't have a NextActivity.
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if (self.World.Map.DistanceAboveTerrain(self.CenterPosition).Length < aircraft.Info.MinAirborneAltitude)
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ChildActivity = ActivityUtils.SequenceActivities(new TakeOff(self), ChildActivity);
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}
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ActivityUtils.RunActivity(self, ChildActivity);
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return this;
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}
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}
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}
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