Files
tbd-station-14/Content.Server/Atmos/EntitySystems/FlammableSystem.cs
2021-11-28 14:34:44 +01:00

283 lines
10 KiB
C#

using System;
using System.Collections.Generic;
using Content.Server.Administration.Logs;
using Content.Server.Alert;
using Content.Server.Atmos.Components;
using Content.Server.Stunnable;
using Content.Server.Temperature.Systems;
using Content.Shared.ActionBlocker;
using Content.Shared.Administration.Logs;
using Content.Shared.Alert;
using Content.Shared.Atmos;
using Content.Shared.Damage;
using Content.Shared.Interaction;
using Content.Shared.Popups;
using Content.Shared.Temperature;
using Robust.Shared.GameObjects;
using Robust.Shared.IoC;
using Robust.Shared.Localization;
using Robust.Shared.Physics;
using Robust.Shared.Physics.Dynamics;
namespace Content.Server.Atmos.EntitySystems
{
internal sealed class FlammableSystem : EntitySystem
{
[Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
[Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
[Dependency] private readonly StunSystem _stunSystem = default!;
[Dependency] private readonly TemperatureSystem _temperatureSystem = default!;
[Dependency] private readonly DamageableSystem _damageableSystem = default!;
[Dependency] private readonly AdminLogSystem _logSystem = default!;
private const float MinimumFireStacks = -10f;
private const float MaximumFireStacks = 20f;
private const float UpdateTime = 1f;
private const float MinIgnitionTemperature = 373.15f;
private float _timer = 0f;
private Dictionary<FlammableComponent, float> _fireEvents = new();
// TODO: Port the rest of Flammable.
public override void Initialize()
{
UpdatesAfter.Add(typeof(AtmosphereSystem));
SubscribeLocalEvent<FlammableComponent, InteractUsingEvent>(OnInteractUsingEvent);
SubscribeLocalEvent<FlammableComponent, StartCollideEvent>(OnCollideEvent);
SubscribeLocalEvent<FlammableComponent, IsHotEvent>(OnIsHotEvent);
SubscribeLocalEvent<FlammableComponent, TileFireEvent>(OnTileFireEvent);
}
private void OnInteractUsingEvent(EntityUid uid, FlammableComponent flammable, InteractUsingEvent args)
{
if (args.Handled)
return;
var isHotEvent = new IsHotEvent();
RaiseLocalEvent(args.Used.Uid, isHotEvent, false);
if (!isHotEvent.IsHot)
return;
Ignite(uid, flammable);
args.Handled = true;
}
private void OnCollideEvent(EntityUid uid, FlammableComponent flammable, StartCollideEvent args)
{
var otherUid = args.OtherFixture.Body.Owner.Uid;
if (!EntityManager.TryGetComponent(otherUid, out FlammableComponent? otherFlammable))
return;
if (!flammable.FireSpread || !otherFlammable.FireSpread)
return;
if (flammable.OnFire)
{
if (otherFlammable.OnFire)
{
var fireSplit = (flammable.FireStacks + otherFlammable.FireStacks) / 2;
flammable.FireStacks = fireSplit;
otherFlammable.FireStacks = fireSplit;
}
else
{
flammable.FireStacks /= 2;
otherFlammable.FireStacks += flammable.FireStacks;
Ignite(otherUid, otherFlammable);
}
} else if (otherFlammable.OnFire)
{
otherFlammable.FireStacks /= 2;
flammable.FireStacks += otherFlammable.FireStacks;
Ignite(uid, flammable);
}
}
private void OnIsHotEvent(EntityUid uid, FlammableComponent flammable, IsHotEvent args)
{
args.IsHot = flammable.OnFire;
}
private void OnTileFireEvent(EntityUid uid, FlammableComponent flammable, TileFireEvent args)
{
var tempDelta = args.Temperature - MinIgnitionTemperature;
var maxTemp = 0f;
_fireEvents.TryGetValue(flammable, out maxTemp);
if (tempDelta > maxTemp)
_fireEvents[flammable] = tempDelta;
}
public void UpdateAppearance(EntityUid uid, FlammableComponent? flammable = null, AppearanceComponent? appearance = null)
{
if (!Resolve(uid, ref flammable, ref appearance))
return;
appearance.SetData(FireVisuals.OnFire, flammable.OnFire);
appearance.SetData(FireVisuals.FireStacks, flammable.FireStacks);
}
public void AdjustFireStacks(EntityUid uid, float relativeFireStacks, FlammableComponent? flammable = null)
{
if (!Resolve(uid, ref flammable))
return;
flammable.FireStacks = MathF.Min(MathF.Max(MinimumFireStacks, flammable.FireStacks + relativeFireStacks), MaximumFireStacks);
if (flammable.OnFire && flammable.FireStacks <= 0)
Extinguish(uid, flammable);
UpdateAppearance(uid, flammable);
}
public void Extinguish(EntityUid uid, FlammableComponent? flammable = null)
{
if (!Resolve(uid, ref flammable))
return;
if (!flammable.OnFire)
return;
_logSystem.Add(LogType.Flammable, $"{flammable.Owner} stopped being on fire damage");
flammable.OnFire = false;
flammable.FireStacks = 0;
flammable.Collided.Clear();
UpdateAppearance(uid, flammable);
}
public void Ignite(EntityUid uid, FlammableComponent? flammable = null)
{
if (!Resolve(uid, ref flammable))
return;
if (flammable.FireStacks > 0 && !flammable.OnFire)
{
_logSystem.Add(LogType.Flammable, $"{flammable.Owner} is on fire");
flammable.OnFire = true;
}
UpdateAppearance(uid, flammable);
}
public void Resist(EntityUid uid,
FlammableComponent? flammable = null,
ServerAlertsComponent? alerts = null)
{
if (!Resolve(uid, ref flammable, ref alerts))
return;
if (!flammable.OnFire || !_actionBlockerSystem.CanInteract(flammable.Owner.Uid) || flammable.Resisting)
return;
flammable.Resisting = true;
flammable.Owner.PopupMessage(Loc.GetString("flammable-component-resist-message"));
_stunSystem.TryParalyze(uid, TimeSpan.FromSeconds(2f), alerts: alerts);
// TODO FLAMMABLE: Make this not use TimerComponent...
flammable.Owner.SpawnTimer(2000, () =>
{
flammable.Resisting = false;
flammable.FireStacks -= 1f;
UpdateAppearance(uid, flammable);
});
}
public override void Update(float frameTime)
{
// process all fire events
foreach (var (flammable, deltaTemp) in _fireEvents)
{
// 100 -> 1, 200 -> 2, 400 -> 3...
var fireStackMod = Math.Max(MathF.Log2(deltaTemp / 100) + 1, 0);
var fireStackDelta = fireStackMod - flammable.FireStacks;
if (fireStackDelta > 0)
{
AdjustFireStacks(flammable.OwnerUid, fireStackDelta, flammable);
}
Ignite(flammable.OwnerUid, flammable);
}
_fireEvents.Clear();
_timer += frameTime;
if (_timer < UpdateTime)
return;
_timer -= UpdateTime;
// TODO: This needs cleanup to take off the crust from TemperatureComponent and shit.
foreach (var (flammable, physics, transform) in EntityManager.EntityQuery<FlammableComponent, IPhysBody, TransformComponent>())
{
var uid = flammable.Owner.Uid;
// Slowly dry ourselves off if wet.
if (flammable.FireStacks < 0)
{
flammable.FireStacks = MathF.Min(0, flammable.FireStacks + 1);
}
flammable.Owner.TryGetComponent(out ServerAlertsComponent? status);
if (!flammable.OnFire)
{
status?.ClearAlert(AlertType.Fire);
continue;
}
status?.ShowAlert(AlertType.Fire);
if (flammable.FireStacks > 0)
{
// TODO FLAMMABLE: further balancing
var damageScale = Math.Min((int)flammable.FireStacks, 5);
_temperatureSystem.ChangeHeat(uid, 12500 * damageScale);
_damageableSystem.TryChangeDamage(uid, flammable.Damage * damageScale);
AdjustFireStacks(uid, -0.1f * (flammable.Resisting ? 10f : 1f), flammable);
}
else
{
Extinguish(uid, flammable);
continue;
}
var air = _atmosphereSystem.GetTileMixture(transform.Coordinates);
// If we're in an oxygenless environment, put the fire out.
if (air == null || air.GetMoles(Gas.Oxygen) < 1f)
{
Extinguish(uid, flammable);
continue;
}
_atmosphereSystem.HotspotExpose(transform.Coordinates, 700f, 50f, true);
foreach (var otherUid in flammable.Collided.ToArray())
{
if (!otherUid.IsValid() || !EntityManager.EntityExists(otherUid))
{
flammable.Collided.Remove(otherUid);
continue;
}
var otherPhysics = EntityManager.GetComponent<IPhysBody>(uid);
// TODO: Sloth, please save our souls!
if (!physics.GetWorldAABB().Intersects(otherPhysics.GetWorldAABB()))
{
flammable.Collided.Remove(otherUid);
}
}
}
}
}
}