Add exception for generates to run alone

Author: Kelwan

rt_entt_codegen/shared/parallel.cc

@@ -129,6 +129,24 @@ auto loop_iterator(
 		auto sys_like_id = *iterator;
 		auto capabilities = ecsact::meta::system_capabilities(sys_like_id);
 
+		auto generate_ids = ecsact::meta::get_system_generates_ids(sys_like_id);
+
+		if(!generate_ids.empty()) {
+			if(!parallel_system_list.empty()) {
+				parallel_system_cluster.push_back(parallel_system_list);
+			}
+
+			parallel_system_cluster.push_back(
+				std::vector<ecsact_system_like_id>{sys_like_id}
+			);
+			loop_iterator(
+				system_list,
+				std::next(iterator, 1),
+				parallel_system_cluster
+			);
+			return;
+		}
+
 		for(const auto [comp_id, capability] : capabilities) {
 			auto cpp_name = decl_full_name(comp_id);
 			if(!is_capability_safe(capability)) {