From 876cbd7362c76bd906c684e0e2a6188a4551e8ca Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Fri, 19 Aug 2022 09:49:41 +0300
Subject: [PATCH] Support ecs behavior::begin called when starting iteration
 over a species

---
 libs/util/include/psemek/util/ecs.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/util/include/psemek/util/ecs.hpp b/libs/util/include/psemek/util/ecs.hpp
index 617b536a..3ad11836 100644
--- a/libs/util/include/psemek/util/ecs.hpp
+++ b/libs/util/include/psemek/util/ecs.hpp
@@ -142,6 +142,8 @@ namespace psemek::util
 
 				((std::get<Components *>(ctx.components) = get_species_component<Components>()), ...);
 
+				behavior.begin({id_}, *std::get<Components *>(ctx.components)...);
+
 				auto visit = [&](auto * ... ptrs)
 				{
 					if constexpr (std::is_invocable_v<Behavior, typename Components::data & ..., typename Behavior::context const &, Args const & ...>)
@@ -441,6 +443,8 @@ namespace psemek::util
 					return *std::get<Component *>(components);
 				}
 			};
+
+			void begin(species_handle, Components const & ...) {}
 		};
 
 		enum class policy