110 lines
2.8 KiB
C#
110 lines
2.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 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 COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Mods.RA.Activities;
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using OpenRA.Mods.RA.Buildings;
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using OpenRA.Mods.RA.Move;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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class AttackTurretedInfo : AttackBaseInfo, Requires<TurretedInfo>
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{
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public override object Create(ActorInitializer init) { return new AttackTurreted( init.self ); }
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}
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class AttackTurreted : AttackBase, INotifyBuildComplete, ISync
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{
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protected Target target;
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protected IEnumerable<Turreted> turrets;
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[Sync] protected bool buildComplete;
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public AttackTurreted(Actor self) : base(self)
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{
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turrets = self.TraitsImplementing<Turreted>();
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}
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protected override bool CanAttack( Actor self, Target target )
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{
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if( self.HasTrait<Building>() && !buildComplete )
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return false;
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if (!target.IsValid) return false;
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bool canAttack = false;
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foreach (var t in turrets)
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if (t.FaceTarget(self, target))
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canAttack = true;
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if (!canAttack) return false;
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return base.CanAttack( self, target );
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}
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public override void Tick(Actor self)
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{
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base.Tick(self);
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DoAttack( self, target );
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IsAttacking = target.IsValid;
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}
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public override Activity GetAttackActivity(Actor self, Target newTarget, bool allowMove)
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{
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return new AttackActivity( newTarget, allowMove );
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}
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public override void ResolveOrder(Actor self, Order order)
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{
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base.ResolveOrder(self, order);
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if (order.OrderString == "Stop")
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target = Target.None;
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}
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public virtual void BuildingComplete(Actor self) { buildComplete = true; }
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class AttackActivity : Activity
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{
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readonly Target target;
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readonly bool allowMove;
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public AttackActivity( Target newTarget, bool allowMove )
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{
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this.target = newTarget;
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this.allowMove = allowMove;
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}
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public override Activity Tick( Actor self )
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{
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if( IsCanceled || !target.IsValid ) return NextActivity;
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if (self.IsDisabled()) return this;
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var attack = self.Trait<AttackTurreted>();
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const int RangeTolerance = 1; /* how far inside our maximum range we should try to sit */
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var weapon = attack.ChooseArmamentForTarget(target);
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if (weapon != null)
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{
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var range = WRange.FromCells(Math.Max(0, (int)weapon.Weapon.Range - RangeTolerance));
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attack.target = target;
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if (allowMove && self.HasTrait<Mobile>() && !self.Info.Traits.Get<MobileInfo>().OnRails)
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return Util.SequenceActivities(new Follow(target, range), 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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}
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