Added new base class for updating creatures for events from AI

src/BaseCreatureHandler.h

@@ -0,0 +1,28 @@
+#include "CreatureHooks.h"
+#include "MpLogger.h"
+
+class BaseCreatureHandler {
+public:
+    BaseCreatureHandler(uint32 entry) {
+
+        ASSERT(entry > 0);
+
+        MpLogger::debug("Registering JustDied and OnSpawn events for entry: ", entry);
+
+        // Register the JustDied event
+        sCreatureHooks->RegisterJustDied(entry, [this](Creature* creature, Unit* killer) {
+            this->OnJustDied(creature, killer);
+        });
+
+        // Register the OnSpawn event
+        sCreatureHooks->RegisterOnSpawn(entry, [this](Creature* creature) {
+            this->OnJustSpawned(creature);
+        });
+    }
+
+    // Virtual event handlers to be overridden by bosses
+    virtual void OnJustDied(Creature* creature, Unit* killer) = 0;
+    virtual void OnJustSpawned(Creature* creature) = 0;
+
+    virtual ~BaseCreatureHandler() {}
+};