72 lines
2.1 KiB
C#
72 lines
2.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2010 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 LICENSE.
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*/
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#endregion
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using System.Linq;
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using OpenRA.Mods.RA.Activities;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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class AutoHealInfo : TraitInfo<AutoHeal> { }
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class AutoHeal : ITick
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{
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void AttackTarget(Actor self, Actor target)
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{
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var attack = self.Trait<AttackBase>();
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if (target != null)
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attack.ResolveOrder(self, new Order("Attack", self, target));
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else
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if (attack.IsAttacking)
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self.CancelActivity();
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}
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bool NeedsNewTarget(Actor self)
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{
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var attack = self.Trait<AttackBase>();
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var range = attack.GetMaximumRange();
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if (!attack.target.IsValid)
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return true; // he's dead.
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if ((attack.target.CenterLocation - self.Location).LengthSquared > range * range + 2)
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return true; // wandered off faster than we could follow
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if (attack.target.IsActor
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&& attack.target.Actor.GetDamageState() == DamageState.Undamaged)
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return true; // fully healed
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return false;
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}
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public void Tick(Actor self)
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{
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var attack = self.Trait<AttackBase>();
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var range = attack.GetMaximumRange();
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if (NeedsNewTarget(self))
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AttackTarget(self, ChooseTarget(self, range));
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}
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Actor ChooseTarget(Actor self, float range)
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{
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var inRange = self.World.FindUnitsInCircle(self.CenterLocation, Game.CellSize * range);
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var attack = self.Trait<AttackBase>();
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return inRange
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.Where(a => a != self && self.Owner.Stances[a.Owner] == Stance.Ally)
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.Where(a => a.IsInWorld && !a.IsDead())
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.Where(a => a.HasTrait<Health>() && a.GetDamageState() > DamageState.Undamaged)
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.Where(a => attack.HasAnyValidWeapons(Target.FromActor(a)))
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.OrderBy(a => (a.Location - self.Location).LengthSquared)
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.FirstOrDefault();
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}
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}
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}
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