56 lines
2.0 KiB
C#
56 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.Damage;
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using Content.Shared.Effects;
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using Robust.Shared.Audio;
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using Robust.Shared.Physics.Events;
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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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public 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 _damageable = default!;
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[Dependency] private readonly StunSystem _stun = 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<DamageOnHighSpeedImpactComponent, StartCollideEvent>(HandleCollide);
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}
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private void HandleCollide(EntityUid uid, DamageOnHighSpeedImpactComponent component, ref StartCollideEvent args)
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{
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if (!args.OurFixture.Hard || !args.OtherFixture.Hard)
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return;
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if (!EntityManager.HasComponent<DamageableComponent>(uid))
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return;
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var speed = args.OurBody.LinearVelocity.Length();
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if (speed < component.MinimumSpeed)
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return;
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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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_stun.TryStun(uid, TimeSpan.FromSeconds(component.StunSeconds), true);
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var damageScale = component.SpeedDamageFactor * speed / component.MinimumSpeed;
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_damageable.TryChangeDamage(uid, component.Damage * damageScale);
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_audio.PlayPvs(component.SoundHit, uid, AudioParams.Default.WithVariation(0.125f).WithVolume(-0.125f));
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RaiseNetworkEvent(new ColorFlashEffectEvent(Color.Red, new List<EntityUid> { uid }), Filter.Pvs(uid, entityManager: EntityManager));
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}
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}
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