Initial work on attack fail handling.

Signed-off-by: Deukhoofd <Deukhoofd@gmail.com>

src/Battling/EventHooks/Events/FailEvent.hpp

@@ -0,0 +1,16 @@
+#ifndef FAILEVENT_HPP
+#define FAILEVENT_HPP
+#include "EventData.hpp"
+
+namespace CreatureLib::Battling {
+    class FailEvent final : public EventData {
+        ArbUt::BorrowedPtr<Creature> _creature;
+
+    public:
+        FailEvent(ArbUt::BorrowedPtr<Creature> c) noexcept : _creature(c) {}
+        EventDataKind GetKind() const noexcept override { return EventDataKind ::Faint; }
+        const ArbUt::BorrowedPtr<Creature>& GetCreature() const noexcept { return _creature; }
+    };
+}
+
+#endif // FAILEVENT_HPP