53 lines
2.0 KiB
C#
53 lines
2.0 KiB
C#
using Content.Server.Damage.Components;
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using Content.Server.Stunnable;
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using Content.Shared.Audio;
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using Content.Shared.Damage;
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using JetBrains.Annotations;
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using Robust.Shared.Audio;
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using Robust.Shared.Physics.Dynamics;
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using Robust.Shared.Player;
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using Robust.Shared.Random;
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using Robust.Shared.Timing;
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namespace Content.Server.Damage.Systems
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{
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[UsedImplicitly]
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internal sealed class DamageOnHighSpeedImpactSystem: EntitySystem
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{
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[Dependency] private readonly IRobustRandom _robustRandom = default!;
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[Dependency] private readonly IGameTiming _gameTiming = default!;
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[Dependency] private readonly DamageableSystem _damageableSystem = default!;
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[Dependency] private readonly StunSystem _stunSystem = default!;
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public override void Initialize()
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{
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base.Initialize();
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SubscribeLocalEvent<DamageOnHighSpeedImpactComponent, StartCollideEvent>(HandleCollide);
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}
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private void HandleCollide(EntityUid uid, DamageOnHighSpeedImpactComponent component, StartCollideEvent args)
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{
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if (!EntityManager.HasComponent<DamageableComponent>(uid)) return;
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var otherBody = args.OtherFixture.Body.Owner;
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var speed = args.OurFixture.Body.LinearVelocity.Length;
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if (speed < component.MinimumSpeed) return;
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SoundSystem.Play(Filter.Pvs(otherBody), component.SoundHit.GetSound(), otherBody, AudioHelpers.WithVariation(0.125f).WithVolume(-0.125f));
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if ((_gameTiming.CurTime - component.LastHit).TotalSeconds < component.DamageCooldown)
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return;
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component.LastHit = _gameTiming.CurTime;
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if (_robustRandom.Prob(component.StunChance))
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_stunSystem.TryStun(uid, TimeSpan.FromSeconds(component.StunSeconds), true);
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var damageScale = (speed / component.MinimumSpeed) * component.Factor;
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_damageableSystem.TryChangeDamage(uid, component.Damage * damageScale);
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}
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}
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}
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