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Refactor DamageOnHighSpeedImpact to be ECS (#4297)

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* Refactor DamageOnHighSpeedImpact to be ecs

* Comment
This commit is contained in:
metalgearsloth
2021-07-21 02:02:43 +10:00
committed by GitHub
parent b46de3a5db
commit e1fdd902bb
2 changed files with 58 additions and 38 deletions
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43
Content.Server/Damage/Components/DamageOnHighSpeedImpactComponent.cs
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@@ -1,26 +1,16 @@
using System;
using Content.Server.Stunnable.Components;
using Content.Shared.Audio;
using Content.Shared.Damage;
using Content.Shared.Damage.Components;
using Robust.Shared.Audio;
using Robust.Shared.GameObjects;
using Robust.Shared.IoC;
using Robust.Shared.Physics.Collision;
using Robust.Shared.Physics.Dynamics;
using Robust.Shared.Player;
using Robust.Shared.Random;
using Robust.Shared.Serialization.Manager.Attributes;
using Robust.Shared.Timing;
namespace Content.Server.Damage.Components
{
/// <summary>
/// Should the entity take damage / be stunned if colliding at a speed above MinimumSpeed?
/// </summary>
[RegisterComponent]
public class DamageOnHighSpeedImpactComponent : Component, IStartCollide
internal sealed class DamageOnHighSpeedImpactComponent : Component
{
[Dependency] private readonly IRobustRandom _robustRandom = default!;
[Dependency] private readonly IGameTiming _gameTiming = default!;
public override string Name => "DamageOnHighSpeedImpact";
[DataField("damage")]
@@ -41,30 +31,7 @@ namespace Content.Server.Damage.Components
public float StunSeconds { get; set; } = 1f;
[DataField("damageCooldown")]
public float DamageCooldown { get; set; } = 2f;
private TimeSpan _lastHit = TimeSpan.Zero;
void IStartCollide.CollideWith(Fixture ourFixture, Fixture otherFixture, in Manifold manifold)
{
if (!Owner.TryGetComponent(out IDamageableComponent? damageable)) return;
var speed = ourFixture.Body.LinearVelocity.Length;
if (speed < MinimumSpeed) return;
if (!string.IsNullOrEmpty(SoundHit))
SoundSystem.Play(Filter.Pvs(otherFixture.Body.Owner), SoundHit, otherFixture.Body.Owner, AudioHelpers.WithVariation(0.125f).WithVolume(-0.125f));
if ((_gameTiming.CurTime - _lastHit).TotalSeconds < DamageCooldown)
return;
_lastHit = _gameTiming.CurTime;
var damage = (int) (BaseDamage * (speed / MinimumSpeed) * Factor);
if (Owner.TryGetComponent(out StunnableComponent? stun) && _robustRandom.Prob(StunChance))
stun.Stun(StunSeconds);
damageable.ChangeDamage(Damage, damage, false, otherFixture.Body.Owner);
}
internal TimeSpan LastHit = TimeSpan.Zero;
}
}

53
Content.Server/Damage/DamageOnHighSpeedImpactSystem.cs Normal file
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@@ -0,0 +1,53 @@
using Content.Server.Damage.Components;
using Content.Server.Stunnable.Components;
using Content.Shared.Audio;
using Content.Shared.Damage.Components;
using JetBrains.Annotations;
using Robust.Shared.Audio;
using Robust.Shared.GameObjects;
using Robust.Shared.IoC;
using Robust.Shared.Physics.Dynamics;
using Robust.Shared.Player;
using Robust.Shared.Random;
using Robust.Shared.Timing;
namespace Content.Server.Damage
{
[UsedImplicitly]
internal sealed class DamageOnHighSpeedImpactSystem: EntitySystem
{
[Dependency] private readonly IRobustRandom _robustRandom = default!;
[Dependency] private readonly IGameTiming _gameTiming = default!;
public override void Initialize()
{
base.Initialize();
SubscribeLocalEvent<DamageOnHighSpeedImpactComponent, StartCollideEvent>(HandleCollide);
}
private void HandleCollide(EntityUid uid, DamageOnHighSpeedImpactComponent component, StartCollideEvent args)
{
if (!ComponentManager.TryGetComponent(uid, out IDamageableComponent? damageable)) return;
var otherBody = args.OtherFixture.Body.Owner;
var speed = args.OurFixture.Body.LinearVelocity.Length;
if (speed < component.MinimumSpeed) return;
if (!string.IsNullOrEmpty(component.SoundHit))
SoundSystem.Play(Filter.Pvs(otherBody), component.SoundHit, otherBody, AudioHelpers.WithVariation(0.125f).WithVolume(-0.125f));
if ((_gameTiming.CurTime - component.LastHit).TotalSeconds < component.DamageCooldown)
return;
component.LastHit = _gameTiming.CurTime;
var damage = (int) (component.BaseDamage * (speed / component.MinimumSpeed) * component.Factor);
if (ComponentManager.TryGetComponent(uid, out StunnableComponent? stun) && _robustRandom.Prob(component.StunChance))
stun.Stun(component.StunSeconds);
damageable.ChangeDamage(component.Damage, damage, false, args.OtherFixture.Body.Owner);
}
}
}