Trigger Refactor (#39034)

Content.Server/Trigger/Systems/ReleaseGasOnTriggerSystem.cs

@@ -0,0 +1,48 @@
+using Content.Server.Atmos.EntitySystems;
+using Content.Shared.Trigger.Components.Effects;
+using Content.Shared.Trigger.Systems;
+using Robust.Shared.Timing;
+
+namespace Content.Server.Trigger.Systems;
+
+public sealed class ReleaseGasOnTriggerSystem : SharedReleaseGasOnTriggerSystem
+{
+    [Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
+    [Dependency] private readonly SharedAppearanceSystem _appearance = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
+
+
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        var curTime = _timing.CurTime;
+        var query = EntityQueryEnumerator<ReleaseGasOnTriggerComponent>();
+
+        while (query.MoveNext(out var uid, out var comp))
+        {
+            if (!comp.Active || comp.NextReleaseTime > curTime)
+                continue;
+
+            var giverGasMix = comp.Air.Remove(comp.StartingTotalMoles * comp.RemoveFraction);
+            var environment = _atmosphereSystem.GetContainingMixture(uid, false, true);
+
+            if (environment == null)
+            {
+                _appearance.SetData(uid, ReleaseGasOnTriggerVisuals.Key, false);
+                RemCompDeferred<ReleaseGasOnTriggerComponent>(uid);
+                continue;
+            }
+
+            _atmosphereSystem.Merge(environment, giverGasMix);
+            comp.NextReleaseTime += comp.ReleaseInterval;
+
+            if (comp.PressureLimit != 0 && environment.Pressure >= comp.PressureLimit ||
+                comp.Air.TotalMoles <= 0)
+            {
+                _appearance.SetData(uid, ReleaseGasOnTriggerVisuals.Key, false);
+                RemCompDeferred<ReleaseGasOnTriggerComponent>(uid);
+            }
+        }
+    }
+}