96 lines
3.1 KiB
C#
96 lines
3.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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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namespace OpenRA.Mods.Common.Traits
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{
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[Desc("Grants a condition to the collector and nearby units.")]
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public class GrantExternalConditionCrateActionInfo : CrateActionInfo
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{
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[FieldLoader.Require]
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[Desc("The condition to apply. Must be included in the target actor's ExternalConditions list.")]
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public readonly string Condition = null;
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[Desc("How many times to grant the condition.")]
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public readonly int Levels = 1;
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[Desc("Duration of the condition (in ticks). Set to 0 for a permanent condition.")]
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public readonly int Duration = 0;
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[Desc("The range to search for extra collectors in.", "Extra collectors will also be granted the crate action.")]
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public readonly WDist Range = new(3);
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[Desc("The maximum number of extra collectors to grant the crate action to.", "-1 = no limit")]
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public readonly int MaxExtraCollectors = 4;
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public override object Create(ActorInitializer init) { return new GrantExternalConditionCrateAction(init.Self, this); }
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}
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public class GrantExternalConditionCrateAction : CrateAction
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{
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readonly Actor self;
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readonly GrantExternalConditionCrateActionInfo info;
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public GrantExternalConditionCrateAction(Actor self, GrantExternalConditionCrateActionInfo info)
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: base(self, info)
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{
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this.self = self;
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this.info = info;
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}
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bool AcceptsCondition(Actor a)
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{
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return a.TraitsImplementing<ExternalCondition>()
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.Any(t => t.Info.Condition == info.Condition && t.CanGrantCondition(self));
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}
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public override int GetSelectionShares(Actor collector)
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{
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return AcceptsCondition(collector) ? info.SelectionShares : 0;
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}
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public override void Activate(Actor collector)
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{
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if (collector.IsInWorld && !collector.IsDead)
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GrantCondition(collector);
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var actorsInRange = self.World.FindActorsInCircle(self.CenterPosition, info.Range)
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.Where(a => a != self && a != collector && a.IsInWorld && !a.IsDead && a.Owner == collector.Owner && AcceptsCondition(a))
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.OrderBy(a => (a.CenterPosition - self.CenterPosition).LengthSquared);
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foreach (var a in info.MaxExtraCollectors > -1 ? actorsInRange.Take(info.MaxExtraCollectors) : actorsInRange)
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GrantCondition(a);
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base.Activate(collector);
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}
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void GrantCondition(Actor actor)
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{
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var externals = actor.TraitsImplementing<ExternalCondition>()
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.Where(t => t.Info.Condition == info.Condition);
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ExternalCondition external = null;
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for (var n = 0; n < info.Levels; n++)
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{
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if (external == null || !external.CanGrantCondition(self))
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{
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external = externals.FirstOrDefault(t => t.CanGrantCondition(self));
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if (external == null)
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break;
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}
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external.GrantCondition(actor, self, info.Duration);
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}
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}
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}
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}
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