Multiantag Gamemode (#37783)

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>
Co-authored-by: Southbridge <7013162+southbridge-fur@users.noreply.github.com>
Co-authored-by: ScarKy0 <106310278+ScarKy0@users.noreply.github.com>

Content.Shared/EntityTable/Conditions/ReoccurrenceDelayCondition.cs

@@ -0,0 +1,49 @@
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using Content.Shared.EntityTable.EntitySelectors;
+using Content.Shared.GameTicking;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.EntityTable.Conditions;
+
+public sealed partial class ReoccurrenceDelayCondition : EntityTableCondition
+{
+    /// <summary>
+    /// The maximum amount of times this rule can have already be run.
+    /// </summary>
+    [DataField]
+    public TimeSpan Delay = TimeSpan.Zero;
+
+    /// <summary>
+    /// The rule that is being checked for occurrences.
+    /// If null, it will use the value on the attached selector.
+    /// </summary>
+    [DataField]
+    public EntProtoId? RuleOverride;
+
+    protected override bool EvaluateImplementation(EntityTableSelector root,
+        IEntityManager entMan,
+        IPrototypeManager proto,
+        EntityTableContext ctx)
+    {
+        string rule;
+        if (RuleOverride is { } ruleOverride)
+        {
+            rule = ruleOverride;
+        }
+        else
+        {
+            rule = root is EntSelector entSelector
+                ? entSelector.Id
+                : string.Empty;
+        }
+
+        if (rule == string.Empty)
+            return false;
+
+        var gameTicker = entMan.System<SharedGameTicker>();
+
+        return gameTicker.AllPreviousGameRules.Any(
+            p => p.Item2 == rule && p.Item1 + Delay <= gameTicker.RoundDuration());
+    }
+}