Add haloperidol, potassium iodide (#27454)

* add haloperidol, potassium iodide

* review fixes

* review and tuning

* shader review

* use timespan and AutoPausedField

Content.Server/Drowsiness/DrowsinessSystem.cs

@@ -0,0 +1,50 @@
+using Content.Shared.Bed.Sleep;
+using Content.Shared.Drowsiness;
+using Content.Shared.StatusEffect;
+using Robust.Shared.Random;
+using Robust.Shared.Timing;
+
+namespace Content.Server.Drowsiness;
+
+public sealed class DrowsinessSystem : SharedDrowsinessSystem
+{
+    [ValidatePrototypeId<StatusEffectPrototype>]
+    private const string SleepKey = "ForcedSleep"; // Same one used by N2O and other sleep chems.
+
+    [Dependency] private readonly IGameTiming _timing = default!;
+    [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly StatusEffectsSystem _statusEffects = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<DrowsinessComponent, ComponentStartup>(OnInit);
+    }
+
+    private void OnInit(EntityUid uid, DrowsinessComponent component, ComponentStartup args)
+    {
+        component.NextIncidentTime = _timing.CurTime + TimeSpan.FromSeconds(_random.NextFloat(component.TimeBetweenIncidents.X, component.TimeBetweenIncidents.Y));
+    }
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        var query = EntityQueryEnumerator<DrowsinessComponent>();
+        while (query.MoveNext(out var uid, out var component))
+        {
+            if (_timing.CurTime < component.NextIncidentTime)
+                continue;
+
+            // Set the new time.
+            component.NextIncidentTime = _timing.CurTime + TimeSpan.FromSeconds(_random.NextFloat(component.TimeBetweenIncidents.X, component.TimeBetweenIncidents.Y));
+
+            // sleep duration
+            var duration = TimeSpan.FromSeconds(_random.NextFloat(component.DurationOfIncident.X, component.DurationOfIncident.Y));
+
+            // Make sure the sleep time doesn't cut into the time to next incident.
+            component.NextIncidentTime += duration;
+
+            _statusEffects.TryAddStatusEffect<ForcedSleepingComponent>(uid, SleepKey, duration, false);
+        }
+    }
+}