Gamerule Entities, Take 2 (#15765)

Content.Server/StationEvents/Events/BluespaceArtifactRule.cs

@@ -0,0 +1,34 @@
+using Content.Server.GameTicking.Rules.Components;
+using Content.Server.StationEvents.Components;
+using Robust.Shared.Random;
+
+namespace Content.Server.StationEvents.Events;
+
+public sealed class BluespaceArtifactRule : StationEventSystem<BluespaceArtifactRuleComponent>
+{
+    protected override void Added(EntityUid uid, BluespaceArtifactRuleComponent component, GameRuleComponent gameRule, GameRuleAddedEvent args)
+    {
+        base.Added(uid, component, gameRule, args);
+
+        var str = Loc.GetString("bluespace-artifact-event-announcement",
+            ("sighting", Loc.GetString(RobustRandom.Pick(component.PossibleSighting))));
+        ChatSystem.DispatchGlobalAnnouncement(str, colorOverride: Color.FromHex("#18abf5"));
+    }
+
+    protected override void Started(EntityUid uid, BluespaceArtifactRuleComponent component, GameRuleComponent gameRule, GameRuleStartedEvent args)
+    {
+        base.Started(uid, component, gameRule, args);
+
+        var amountToSpawn = Math.Max(1, (int) MathF.Round(GetSeverityModifier() / 1.5f));
+        for (var i = 0; i < amountToSpawn; i++)
+        {
+            if (!TryFindRandomTile(out _, out _, out _, out var coords))
+                return;
+
+            Spawn(component.ArtifactSpawnerPrototype, coords);
+            Spawn(component.ArtifactFlashPrototype, coords);
+
+            Sawmill.Info($"Spawning random artifact at {coords}");
+        }
+    }
+}