3ae75f870c
Accept both null and empty string to disable explosion weapons. Throw specific exception if weapon was not found. Require Weapon (EmptyWeapon stays optional).
81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 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.Linq;
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using OpenRA.Mods.Common.Warheads;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits
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{
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[Desc("This actor explodes when killed.")]
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public class ExplodesInfo : ITraitInfo
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{
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[WeaponReference, FieldLoader.Require, Desc("Weapon to use for explosion if ammo/payload is loaded.")]
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public readonly string Weapon = "UnitExplode";
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[WeaponReference, Desc("Weapon to use for explosion if no ammo/payload is loaded.")]
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public readonly string EmptyWeapon = "UnitExplode";
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[Desc("Chance that the explosion will use Weapon if the actor has ammo/payload.")]
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public readonly int LoadedChance = 100;
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[Desc("Chance that this actor will explode at all.")]
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public readonly int Chance = 100;
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[Desc("DeathType(s) to apply upon explosion.")]
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public readonly string[] DeathType = null;
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public object Create(ActorInitializer init) { return new Explodes(this); }
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}
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public class Explodes : INotifyKilled
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{
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readonly ExplodesInfo info;
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public Explodes(ExplodesInfo info) { this.info = info; }
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public void Killed(Actor self, AttackInfo e)
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{
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if (!self.IsInWorld)
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return;
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if (self.World.SharedRandom.Next(100) > info.Chance)
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return;
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var warhead = e.Warhead as DamageWarhead;
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if (info.DeathType != null && warhead != null && !info.DeathType.Intersect(warhead.DamageTypes).Any())
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return;
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var weaponName = ChooseWeaponForExplosion(self);
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if (string.IsNullOrEmpty(weaponName))
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return;
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if (!e.Attacker.World.Map.Rules.Weapons.ContainsKey(weaponName.ToLowerInvariant()))
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throw new InvalidOperationException("Actor " + self.Info.Name
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+ ": Could not find weapon '" + weaponName.ToLowerInvariant() + "', check for typos.");
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var weapon = e.Attacker.World.Map.Rules.Weapons[weaponName.ToLowerInvariant()];
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if (weapon.Report != null && weapon.Report.Any())
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Sound.Play(weapon.Report.Random(e.Attacker.World.SharedRandom), self.CenterPosition);
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// Use .FromPos since this actor is killed. Cannot use Target.FromActor
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weapon.Impact(Target.FromPos(self.CenterPosition), e.Attacker, Enumerable.Empty<int>());
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}
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string ChooseWeaponForExplosion(Actor self)
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{
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var shouldExplode = self.TraitsImplementing<IExplodeModifier>().All(a => a.ShouldExplode(self));
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var useFullExplosion = self.World.SharedRandom.Next(100) <= info.LoadedChance;
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return (shouldExplode && useFullExplosion) ? info.Weapon : info.EmptyWeapon;
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}
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}
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}
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