55 lines
2.0 KiB
C#
55 lines
2.0 KiB
C#
using System;
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using Content.Shared.Damage.Components;
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using Content.Shared.FixedPoint;
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using Content.Shared.Movement.EntitySystems;
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using Robust.Shared.GameObjects;
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using Robust.Shared.IoC;
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namespace Content.Shared.Damage.Systems
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{
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public class SlowOnDamageSystem : EntitySystem
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{
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[Dependency] private readonly MovementSpeedModifierSystem _movementSpeedModifierSystem = default!;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<SlowOnDamageComponent, DamageChangedEvent>(OnDamageChanged);
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SubscribeLocalEvent<SlowOnDamageComponent, RefreshMovementSpeedModifiersEvent>(OnRefreshMovespeed);
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}
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private void OnRefreshMovespeed(EntityUid uid, SlowOnDamageComponent component, RefreshMovementSpeedModifiersEvent args)
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{
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if (!EntityManager.TryGetComponent<DamageableComponent>(uid, out var damage))
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return;
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if (damage.TotalDamage == FixedPoint2.Zero)
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return;
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// Get closest threshold
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FixedPoint2 closest = FixedPoint2.Zero;
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var total = damage.TotalDamage;
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foreach (var thres in component.SpeedModifierThresholds)
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{
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if (FixedPoint2.Dist(thres.Key, total) < FixedPoint2.Dist(closest, total))
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closest = thres.Key;
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}
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if (closest != FixedPoint2.Zero)
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{
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var speed = component.SpeedModifierThresholds[closest];
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args.ModifySpeed(speed, speed);
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}
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}
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private void OnDamageChanged(EntityUid uid, SlowOnDamageComponent component, DamageChangedEvent args)
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{
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// We -could- only refresh if it crossed a threshold but that would kind of be a lot of duplicated
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// code and this isn't a super hot path anyway since basically only humans have this
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_movementSpeedModifierSystem.RefreshMovementSpeedModifiers(uid);
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}
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}
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}
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