Trigger Refactor (#39034)

Content.Shared/Trigger/Components/Conditions/BaseTriggerConditionComponent.cs

@@ -0,0 +1,15 @@
+using Content.Shared.Trigger.Systems;
+
+namespace Content.Shared.Trigger.Components.Conditions;
+
+/// <summary>
+/// Base class for components that add a condition to triggers.
+/// </summary>
+public abstract partial class BaseTriggerConditionComponent : Component
+{
+    /// <summary>
+    /// The keys that are checked for the condition.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public HashSet<string> Keys = new() { TriggerSystem.DefaultTriggerKey };
+}