84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
using Content.Shared.ActionBlocker;
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using Content.Shared.Buckle.Components;
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using Content.Shared.Movement.Events;
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using Content.Shared.StepTrigger.Systems;
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using Robust.Shared.Network;
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using Robust.Shared.Physics.Components;
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using Robust.Shared.Timing;
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namespace Content.Shared.Chasm;
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/// <summary>
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/// Handles making entities fall into chasms when stepped on.
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/// </summary>
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public sealed class ChasmSystem : EntitySystem
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{
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[Dependency] private readonly IGameTiming _timing = default!;
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[Dependency] private readonly ActionBlockerSystem _blocker = default!;
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[Dependency] private readonly INetManager _net = default!;
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[Dependency] private readonly SharedAudioSystem _audio = default!;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<ChasmComponent, StepTriggeredEvent>(OnStepTriggered);
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SubscribeLocalEvent<ChasmComponent, StepTriggerAttemptEvent>(OnStepTriggerAttempt);
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SubscribeLocalEvent<ChasmFallingComponent, EntityUnpausedEvent>(OnUnpaused);
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SubscribeLocalEvent<ChasmFallingComponent, UpdateCanMoveEvent>(OnUpdateCanMove);
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}
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public override void Update(float frameTime)
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{
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base.Update(frameTime);
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// don't predict queuedels on client
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if (_net.IsClient)
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return;
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var query = EntityQueryEnumerator<ChasmFallingComponent>();
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while (query.MoveNext(out var uid, out var chasm))
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{
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if (_timing.CurTime < chasm.NextDeletionTime)
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continue;
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QueueDel(uid);
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}
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}
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private void OnStepTriggered(EntityUid uid, ChasmComponent component, ref StepTriggeredEvent args)
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{
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// already doomed
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if (HasComp<ChasmFallingComponent>(args.Tripper))
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return;
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StartFalling(uid, component, args.Tripper);
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}
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public void StartFalling(EntityUid chasm, ChasmComponent component, EntityUid tripper, bool playSound = true)
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{
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var falling = AddComp<ChasmFallingComponent>(tripper);
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falling.NextDeletionTime = _timing.CurTime + falling.DeletionTime;
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_blocker.UpdateCanMove(tripper);
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if (playSound)
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_audio.PlayPredicted(component.FallingSound, chasm, tripper);
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}
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private void OnStepTriggerAttempt(EntityUid uid, ChasmComponent component, ref StepTriggerAttemptEvent args)
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{
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args.Continue = true;
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}
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private void OnUnpaused(EntityUid uid, ChasmFallingComponent component, ref EntityUnpausedEvent args)
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{
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component.NextDeletionTime += args.PausedTime;
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}
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private void OnUpdateCanMove(EntityUid uid, ChasmFallingComponent component, UpdateCanMoveEvent args)
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{
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args.Cancel();
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}
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}
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