feat(events): read EventGating and run the Crux Prime pirateDay loads

EventGating (eventName, date_start, date_end; 8 rows) is only in the
CDClient for the server: the 1.10.64 client has no string for it. The
dates are Unix times (UTC), inclusive: pirateDay 2011-09-19 00:00 to
2011-09-20 23:59:59 (Talk Like a Pirate Day), buildNexusTower 2010-03-09
to 2011-03-14, buildNexusTowerEnd, frostburgh2010_notused and test rows.
The live Lua asked for an event with GetHolidayEvent{eventToCheck =
name}.isValid; the only callers are the Crux Prime random spawners
(L_BASE_RANDOM_SPAWNER.lua, L_AM_ZONE_SERVER.lua), whose only event is
pirateDay. DLU's BaseRandomServer::CheckEvents was a TODO.

- CDEventGatingTable loads the table; HolidayEvents::IsActive(name) is
  true while the dates include now, or when event_1..event_8 names the
  event (every live date is in 2010/2011, so this is how a server turns
  one on; the same settings already switch gatingOnFeature objects).
- BaseRandomServer::CheckEvents: during pirateDay the str and zip areas
  use the event loads from the Lua (80%: 5 pirates on each of type1-3,
  20%: 5 admirals each; multipliers secA 1, secB 1, secC 1.2 for str).
  Inferred: every spawner's Lua put the whole {str, zip} table in its
  zones, which its getRandomLoad walks with ipairs and so finds no load;
  DLU uses each table for the area it names, as L_AM_ZONE_SERVER.lua's
  layout intends.
- sharedconfig.ini says event_N also takes EventGating names.

Check in game: with event_2=pirateDay in sharedconfig.ini, the Crux Prime
areas filled by the str and zip random spawners (spawner networks
em_str_* and em_zip_*) spawn only Maelstrom pirates and admirals; the
other two areas and a server without the setting spawn the usual mix.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

dDatabase/CDClientDatabase/CDClientManager.cpp

@@ -23,6 +23,7 @@
 #include "CDPhysicsComponentTable.h"
 #include "CDRebuildComponentTable.h"
 #include "CDCollectibleComponentTable.h"
+#include "CDEventGatingTable.h"
 #include "CDScriptComponentTable.h"
 #include "CDSkillBehaviorTable.h"
 #include "CDZoneTableTable.h"
@@ -102,6 +103,7 @@ DEFINE_TABLE_STORAGE(CDRailActivatorComponentTable);
 DEFINE_TABLE_STORAGE(CDRarityTableTable);
 DEFINE_TABLE_STORAGE(CDRebuildComponentTable);
 DEFINE_TABLE_STORAGE(CDCollectibleComponentTable);
+DEFINE_TABLE_STORAGE(CDEventGatingTable);
 DEFINE_TABLE_STORAGE(CDRewardCodesTable);
 DEFINE_TABLE_STORAGE(CDRewardsTable);
 DEFINE_TABLE_STORAGE(CDScriptComponentTable);
@@ -126,6 +128,7 @@ void CDClientManager::LoadValuesFromDatabase() {
 	CDDeletionRestrictionsTable::Instance().LoadValuesFromDatabase();
 	CDDestructibleComponentTable::Instance().LoadValuesFromDatabase();
 	CDEmoteTableTable::Instance().LoadValuesFromDatabase();
+	CDEventGatingTable::Instance().LoadValuesFromDatabase();
 	CDFeatureGatingTable::Instance().LoadValuesFromDatabase();
 	CDInventoryComponentTable::Instance().LoadValuesFromDatabase();
 	CDCLIENT_DONT_CACHE_TABLE(CDItemComponentTable::Instance().LoadValuesFromDatabase());

dDatabase/CDClientDatabase/CDClientTables/CDEventGatingTable.cpp

@@ -0,0 +1,22 @@
+#include "CDEventGatingTable.h"
+
+void CDEventGatingTable::LoadValuesFromDatabase() {
+	auto& entries = GetEntriesMutable();
+	auto tableData = CDClientDatabase::ExecuteQuery("SELECT * FROM EventGating");
+	while (!tableData.eof()) {
+		CDEventGating entry;
+		entry.eventName = tableData.getStringField("eventName", "");
+		entry.dateStart = tableData.getInt64Field("date_start", 0);
+		entry.dateEnd = tableData.getInt64Field("date_end", 0);
+		entries.push_back(entry);
+		tableData.nextRow();
+	}
+	tableData.finalize();
+}
+
+bool CDEventGatingTable::IsEventActive(const std::string_view eventName, const int64_t unixTime) const {
+	for (const auto& entry : GetEntries()) {
+		if (entry.eventName == eventName && entry.dateStart <= unixTime && unixTime <= entry.dateEnd) return true;
+	}
+	return false;
+}

dDatabase/CDClientDatabase/CDClientTables/CDEventGatingTable.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "CDTable.h"
+
+#include <cstdint>
+#include <string>
+#include <string_view>
+#include <vector>
+
+/**
+ * EventGating: read only by the server (the 1.10.64 client has no string for the table). A holiday event and the
+ * Unix times (UTC) it ran between, inclusive: pirateDay 2011-09-19 00:00 to 2011-09-20 23:59:59, buildNexusTower,
+ * frostburgh2010_notused and test rows. Server Lua asked for an event with GetHolidayEvent{eventToCheck = name}.isValid
+ * (the Crux Prime random spawners switch to their pirateDay loads).
+ */
+struct CDEventGating {
+	std::string eventName;
+	int64_t dateStart{};
+	int64_t dateEnd{};
+};
+
+class CDEventGatingTable : public CDTable<CDEventGatingTable, std::vector<CDEventGating>> {
+public:
+	void LoadValuesFromDatabase();
+
+	// Whether the event has a row whose dates include the time
+	[[nodiscard]] bool IsEventActive(std::string_view eventName, int64_t unixTime) const;
+};

dDatabase/CDClientDatabase/CDClientTables/CMakeLists.txt

@@ -9,6 +9,7 @@ set(DDATABASE_CDCLIENTDATABASE_CDCLIENTTABLES_SOURCES "CDActivitiesTable.cpp"
 	"CDCurrencyTableTable.cpp"
 	"CDDestructibleComponentTable.cpp"
 	"CDEmoteTable.cpp"
+	"CDEventGatingTable.cpp"
 	"CDFeatureGatingTable.cpp"
 	"CDInventoryComponentTable.cpp"
 	"CDItemComponentTable.cpp"