From 9b18e664e807e321c8da4075596a3a260760ed47 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Fri, 28 Oct 2022 16:05:58 +0300
Subject: [PATCH] Replace ecs sparse component with default-constructed ones
 upon entity destruction

---
 libs/util/include/psemek/util/ecs.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libs/util/include/psemek/util/ecs.hpp b/libs/util/include/psemek/util/ecs.hpp
index e19bd316..8cf6ec17 100644
--- a/libs/util/include/psemek/util/ecs.hpp
+++ b/libs/util/include/psemek/util/ecs.hpp
@@ -270,6 +270,7 @@ namespace psemek::util
 			void remove_entity(entity_handle h) override
 			{
 				auto id = unpack(h).entity;
+				remove_entity_impl(id, std::make_index_sequence<sizeof...(Components)>{});
 				list_[id] = list_head_;
 				list_head_ = id;
 				destroyed_at_[id] = ++version_;
@@ -334,6 +335,12 @@ namespace psemek::util
 				created_at_[id] = version_;
 				return pack(this->id_, id, version_);
 			}
+
+			template <std::size_t ... I>
+			void remove_entity_impl(entity_id id, std::index_sequence<I...>)
+			{
+				((std::get<I>(this->entity_components_)[id] = {}), ...);
+			}
 		};
 
 		template <typename ... Components>