349 lines
13 KiB
C#
349 lines
13 KiB
C#
using Content.Server.Administration.Logs;
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using Content.Server.Atmos.Components;
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using Content.Server.Stunnable;
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using Content.Server.Temperature.Components;
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using Content.Server.Temperature.Systems;
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using Content.Shared.ActionBlocker;
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using Content.Shared.Alert;
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using Content.Shared.Atmos;
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using Content.Shared.Damage;
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using Content.Shared.Database;
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using Content.Shared.Interaction;
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using Content.Shared.Physics;
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using Content.Shared.Popups;
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using Content.Shared.Rejuvenate;
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using Content.Shared.Temperature;
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using Content.Shared.Weapons.Melee.Events;
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using Robust.Server.GameObjects;
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using Robust.Shared.Physics;
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using Robust.Shared.Physics.Components;
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using Robust.Shared.Physics.Dynamics;
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using Robust.Shared.Physics.Events;
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using Robust.Shared.Physics.Systems;
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namespace Content.Server.Atmos.EntitySystems
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{
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public sealed class FlammableSystem : EntitySystem
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{
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[Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
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[Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
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[Dependency] private readonly StunSystem _stunSystem = default!;
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[Dependency] private readonly TemperatureSystem _temperatureSystem = default!;
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[Dependency] private readonly DamageableSystem _damageableSystem = default!;
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[Dependency] private readonly AlertsSystem _alertsSystem = default!;
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[Dependency] private readonly TransformSystem _transformSystem = default!;
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[Dependency] private readonly FixtureSystem _fixture = default!;
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[Dependency] private readonly EntityLookupSystem _lookup = default!;
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[Dependency] private readonly IAdminLogManager _adminLogger = default!;
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[Dependency] private readonly SharedAppearanceSystem _appearance = default!;
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public const float MinimumFireStacks = -10f;
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public const float MaximumFireStacks = 20f;
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private const float UpdateTime = 1f;
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public const float MinIgnitionTemperature = 373.15f;
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public const string FlammableFixtureID = "flammable";
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private float _timer = 0f;
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private Dictionary<FlammableComponent, float> _fireEvents = new();
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public override void Initialize()
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{
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UpdatesAfter.Add(typeof(AtmosphereSystem));
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SubscribeLocalEvent<FlammableComponent, MapInitEvent>(OnMapInit);
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SubscribeLocalEvent<FlammableComponent, InteractUsingEvent>(OnInteractUsing);
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SubscribeLocalEvent<FlammableComponent, StartCollideEvent>(OnCollide);
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SubscribeLocalEvent<FlammableComponent, IsHotEvent>(OnIsHot);
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SubscribeLocalEvent<FlammableComponent, TileFireEvent>(OnTileFire);
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SubscribeLocalEvent<FlammableComponent, RejuvenateEvent>(OnRejuvenate);
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SubscribeLocalEvent<IgniteOnCollideComponent, StartCollideEvent>(IgniteOnCollide);
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SubscribeLocalEvent<IgniteOnMeleeHitComponent, MeleeHitEvent>(OnMeleeHit);
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}
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private void OnMeleeHit(EntityUid uid, IgniteOnMeleeHitComponent component, MeleeHitEvent args)
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{
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foreach (var entity in args.HitEntities)
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{
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if (!TryComp<FlammableComponent>(entity, out var flammable))
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continue;
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flammable.FireStacks += component.FireStacks;
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Ignite(entity, flammable);
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}
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}
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private void IgniteOnCollide(EntityUid uid, IgniteOnCollideComponent component, ref StartCollideEvent args)
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{
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var otherFixture = args.OtherFixture.Body.Owner;
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if (!EntityManager.TryGetComponent(otherFixture, out FlammableComponent? flammable))
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return;
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flammable.FireStacks += component.FireStacks;
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Ignite(otherFixture, flammable);
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}
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private void OnMapInit(EntityUid uid, FlammableComponent component, MapInitEvent args)
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{
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// Sets up a fixture for flammable collisions.
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// TODO: Should this be generalized into a general non-hard 'effects' fixture or something? I can't think of other use cases for it.
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// This doesn't seem great either (lots more collisions generated) but there isn't a better way to solve it either that I can think of.
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if (!TryComp<PhysicsComponent>(uid, out var body))
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return;
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_fixture.TryCreateFixture(uid, component.FlammableCollisionShape, FlammableFixtureID, hard: false,
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collisionMask: (int) CollisionGroup.FullTileLayer, body: body);
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}
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private void OnInteractUsing(EntityUid uid, FlammableComponent flammable, InteractUsingEvent args)
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{
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if (args.Handled)
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return;
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var isHotEvent = new IsHotEvent();
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RaiseLocalEvent(args.Used, isHotEvent);
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if (!isHotEvent.IsHot)
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return;
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Ignite(uid, flammable);
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args.Handled = true;
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}
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private void OnCollide(EntityUid uid, FlammableComponent flammable, ref StartCollideEvent args)
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{
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var otherUid = args.OtherFixture.Body.Owner;
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// Normal hard collisions, though this isn't generally possible since most flammable things are mobs
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// which don't collide with one another, shouldn't work here.
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if (args.OtherFixture.ID != FlammableFixtureID && args.OurFixture.ID != FlammableFixtureID)
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return;
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if (!EntityManager.TryGetComponent(otherUid, out FlammableComponent? otherFlammable))
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return;
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if (!flammable.FireSpread || !otherFlammable.FireSpread)
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return;
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if (flammable.OnFire)
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{
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if (otherFlammable.OnFire)
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{
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var fireSplit = (flammable.FireStacks + otherFlammable.FireStacks) / 2;
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flammable.FireStacks = fireSplit;
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otherFlammable.FireStacks = fireSplit;
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}
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else
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{
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flammable.FireStacks /= 2;
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otherFlammable.FireStacks += flammable.FireStacks;
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Ignite(otherUid, otherFlammable);
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}
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}
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else if (otherFlammable.OnFire)
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{
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otherFlammable.FireStacks /= 2;
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flammable.FireStacks += otherFlammable.FireStacks;
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Ignite(uid, flammable);
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}
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}
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private void OnIsHot(EntityUid uid, FlammableComponent flammable, IsHotEvent args)
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{
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args.IsHot = flammable.OnFire;
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}
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private void OnTileFire(EntityUid uid, FlammableComponent flammable, ref TileFireEvent args)
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{
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var tempDelta = args.Temperature - MinIgnitionTemperature;
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var maxTemp = 0f;
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_fireEvents.TryGetValue(flammable, out maxTemp);
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if (tempDelta > maxTemp)
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_fireEvents[flammable] = tempDelta;
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}
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private void OnRejuvenate(EntityUid uid, FlammableComponent component, RejuvenateEvent args)
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{
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Extinguish(uid, component);
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}
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public void UpdateAppearance(EntityUid uid, FlammableComponent? flammable = null, AppearanceComponent? appearance = null)
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{
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if (!Resolve(uid, ref flammable, ref appearance))
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return;
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_appearance.SetData(uid, FireVisuals.OnFire, flammable.OnFire, appearance);
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_appearance.SetData(uid, FireVisuals.FireStacks, flammable.FireStacks, appearance);
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}
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public void AdjustFireStacks(EntityUid uid, float relativeFireStacks, FlammableComponent? flammable = null)
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{
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if (!Resolve(uid, ref flammable))
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return;
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flammable.FireStacks = MathF.Min(MathF.Max(MinimumFireStacks, flammable.FireStacks + relativeFireStacks), MaximumFireStacks);
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if (flammable.OnFire && flammable.FireStacks <= 0)
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Extinguish(uid, flammable);
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UpdateAppearance(uid, flammable);
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}
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public void Extinguish(EntityUid uid, FlammableComponent? flammable = null)
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{
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if (!Resolve(uid, ref flammable))
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return;
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if (!flammable.OnFire)
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return;
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_adminLogger.Add(LogType.Flammable, $"{ToPrettyString(flammable.Owner):entity} stopped being on fire damage");
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flammable.OnFire = false;
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flammable.FireStacks = 0;
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flammable.Collided.Clear();
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UpdateAppearance(uid, flammable);
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}
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public void Ignite(EntityUid uid, FlammableComponent? flammable = null)
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{
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if (!Resolve(uid, ref flammable))
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return;
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if (flammable.FireStacks > 0 && !flammable.OnFire)
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{
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_adminLogger.Add(LogType.Flammable, $"{ToPrettyString(flammable.Owner):entity} is on fire");
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flammable.OnFire = true;
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}
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UpdateAppearance(uid, flammable);
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}
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public void Resist(EntityUid uid,
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FlammableComponent? flammable = null)
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{
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if (!Resolve(uid, ref flammable))
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return;
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if (!flammable.OnFire || !_actionBlockerSystem.CanInteract(flammable.Owner, null) || flammable.Resisting)
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return;
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flammable.Resisting = true;
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flammable.Owner.PopupMessage(Loc.GetString("flammable-component-resist-message"));
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_stunSystem.TryParalyze(uid, TimeSpan.FromSeconds(2f), true);
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// TODO FLAMMABLE: Make this not use TimerComponent...
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flammable.Owner.SpawnTimer(2000, () =>
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{
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flammable.Resisting = false;
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flammable.FireStacks -= 1f;
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UpdateAppearance(uid, flammable);
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});
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}
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public override void Update(float frameTime)
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{
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// process all fire events
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foreach (var (flammable, deltaTemp) in _fireEvents)
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{
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// 100 -> 1, 200 -> 2, 400 -> 3...
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var fireStackMod = Math.Max(MathF.Log2(deltaTemp / 100) + 1, 0);
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var fireStackDelta = fireStackMod - flammable.FireStacks;
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if (fireStackDelta > 0)
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{
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AdjustFireStacks(flammable.Owner, fireStackDelta, flammable);
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}
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Ignite(flammable.Owner, flammable);
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}
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_fireEvents.Clear();
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_timer += frameTime;
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if (_timer < UpdateTime)
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return;
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_timer -= UpdateTime;
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// TODO: This needs cleanup to take off the crust from TemperatureComponent and shit.
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foreach (var (flammable, transform) in EntityManager.EntityQuery<FlammableComponent, TransformComponent>())
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{
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var uid = flammable.Owner;
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// Slowly dry ourselves off if wet.
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if (flammable.FireStacks < 0)
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{
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flammable.FireStacks = MathF.Min(0, flammable.FireStacks + 1);
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}
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if (!flammable.OnFire)
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{
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_alertsSystem.ClearAlert(uid, AlertType.Fire);
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continue;
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}
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_alertsSystem.ShowAlert(uid, AlertType.Fire, null, null);
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if (flammable.FireStacks > 0)
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{
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// TODO FLAMMABLE: further balancing
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var damageScale = Math.Min((int)flammable.FireStacks, 5);
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if(TryComp(uid, out TemperatureComponent? temp))
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_temperatureSystem.ChangeHeat(uid, 12500 * damageScale, false, temp);
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_damageableSystem.TryChangeDamage(uid, flammable.Damage * damageScale);
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AdjustFireStacks(uid, -0.1f * (flammable.Resisting ? 10f : 1f), flammable);
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}
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else
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{
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Extinguish(uid, flammable);
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continue;
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}
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var air = _atmosphereSystem.GetContainingMixture(uid);
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// If we're in an oxygenless environment, put the fire out.
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if (air == null || air.GetMoles(Gas.Oxygen) < 1f)
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{
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Extinguish(uid, flammable);
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continue;
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}
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if(transform.GridUid != null)
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{
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_atmosphereSystem.HotspotExpose(transform.GridUid.Value,
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_transformSystem.GetGridOrMapTilePosition(uid, transform),
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700f, 50f, true);
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}
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for (var i = flammable.Collided.Count - 1; i >= 0; i--)
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{
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var otherUid = flammable.Collided[i];
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if (!otherUid.IsValid() || !EntityManager.EntityExists(otherUid))
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{
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flammable.Collided.RemoveAt(i);
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continue;
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}
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// TODO: Sloth, please save our souls!
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// no
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if (!_lookup.GetWorldAABB(uid, transform).Intersects(_lookup.GetWorldAABB(otherUid)))
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{
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flammable.Collided.RemoveAt(i);
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}
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}
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}
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}
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}
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}
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