41 lines
1.7 KiB
C#
41 lines
1.7 KiB
C#
using Content.Server._DV.Mail.Components;
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using Content.Shared.Damage;
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using Robust.Shared.Containers;
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namespace Content.Server._DV.Mail.EntitySystems
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{
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/// <summary>
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/// A placeholder for another entity, spawned when an entity is taken out of a container, with the placeholder deleted shortly after.
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/// Useful for storing instant effect entities, e.g. smoke, in the mail.
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/// Note: for items with ghost roles, ensure that the item is not damageable.
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/// </summary>
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public sealed class DelayedItemSystem : EntitySystem
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{
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<DelayedItemComponent, DamageChangedEvent>(OnDamageChanged);
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SubscribeLocalEvent<DelayedItemComponent, EntGotRemovedFromContainerMessage>(OnRemovedFromContainer);
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}
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/// <summary>
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/// EntGotRemovedFromContainerMessage handler - spawn the intended entity after removed from a container and delete the.
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/// </summary>
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private void OnRemovedFromContainer(EntityUid uid, DelayedItemComponent component, EntGotRemovedFromContainerMessage args)
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{
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SpawnAtPosition(component.Item, Transform(uid).Coordinates);
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QueueDel(uid);
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}
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/// <summary>
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/// OnDamageChanged handler - item has taken damage (e.g. inside the envelope), spawn the intended entity in the same container as the placeholder and delete the placeholder.
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/// </summary>
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private void OnDamageChanged(EntityUid uid, DelayedItemComponent component, DamageChangedEvent args)
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{
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SpawnAtPosition(component.Item, Transform(uid).Coordinates);
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QueueDel(uid);
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}
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}
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}
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