64 lines
1.8 KiB
C#
64 lines
1.8 KiB
C#
using System.Linq;
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using OpenRa.Game.Traits.Activities;
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namespace OpenRa.Game.Traits
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{
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class AutoHealInfo : StatelessTraitInfo<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.traits.WithInterface<AttackBase>().First();
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if (target != null)
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attack.ResolveOrder(self, new Order("Attack", self, target, int2.Zero, null));
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else
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if (self.GetCurrentActivity() is Attack)
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self.CancelActivity();
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}
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float GetMaximumRange(Actor self)
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{
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return new[] { self.LegacyInfo.Primary, self.LegacyInfo.Secondary }
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.Where(w => w != null)
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.Max(w => Rules.WeaponInfo[w].Range);
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}
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bool NeedsNewTarget(Actor self)
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{
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var attack = self.traits.WithInterface<AttackBase>().First();
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var range = GetMaximumRange(self);
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if (attack.target == null)
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return true; // he's dead.
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if ((attack.target.Location - 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.Health == attack.target.LegacyInfo.Strength)
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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.traits.WithInterface<AttackBase>().First();
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var range = GetMaximumRange(self);
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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 = Game.FindUnitsInCircle(self.CenterLocation, Game.CellSize * range);
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return inRange
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.Where(a => a.Owner == self.Owner && a != self) /* todo: one day deal with friendly players */
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.Where(a => Combat.HasAnyValidWeapons(self, a))
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.Where(a => a.Health < a.LegacyInfo.Strength)
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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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