From 403e24bf4cbdf31acd305bac90965cf5d04b4c28 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Fri, 19 Jul 2024 00:35:37 +0300
Subject: [PATCH] Add null ecs handle for convenience

---
 libs/ecs/include/psemek/ecs/handle.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libs/ecs/include/psemek/ecs/handle.hpp b/libs/ecs/include/psemek/ecs/handle.hpp
index 2a8b64c1..dc596300 100644
--- a/libs/ecs/include/psemek/ecs/handle.hpp
+++ b/libs/ecs/include/psemek/ecs/handle.hpp
@@ -14,6 +14,16 @@ namespace psemek::ecs
 
 		friend bool operator == (handle const &, handle const &) = default;
 		friend auto operator <=> (handle const &, handle const &) = default;
+
+		static handle null()
+		{
+			return {-1, -1};
+		}
+
+		explicit operator bool() const
+		{
+			return (*this) != null();
+		}
 	};
 
 	inline std::ostream & operator << (std::ostream & out, handle const & handle)