From b4ef729dcb170091695397a33fc6de99b0f42ca7 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Sat, 27 Jun 2026 23:54:56 +0200
Subject: Helper component which resets the field porosity

---
 lib/core/c++/particle/particle_opa.hpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 lib/core/c++/particle/particle_opa.hpp

diff --git a/lib/core/c++/particle/particle_opa.hpp b/lib/core/c++/particle/particle_opa.hpp
new file mode 100644
index 0000000..470c4e9
--- /dev/null
+++ b/lib/core/c++/particle/particle_opa.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "component.hpp"
+
+namespace kel {
+namespace lbm {
+namespace cmpt {
+struct OneParticleAt {};
+}
+
+template<typename T, typename Descriptor, typename Encode>
+
+class component<T,Descriptor,cmpt::OneParticleAt, Encode> final {
+private:
+public:
+	component() = default;
+
+	template<typename MacroFieldSchema>
+	void apply(const saw::data<MacroFieldSchema, Encode>& macros, const saw::data<sch::FixedArray<sch::UInt64,Descriptor::D>> index, saw::data<sch::UInt64> time_step) const {
+		using dfi = df_info<T,Descriptor>;
+
+		auto& porous_f = macros.template get<"porosity">();
+
+		auto& porous = porous_f.at(index);
+
+
+	}
+};
+}
+}
-- 
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