From ff702d3c9427794c5557360c53b93f9861f97554 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Mon, 22 Jun 2026 17:36:51 +0200
Subject: Dangling

---
 examples/poiseulle_particles_2d_gpu/step.hpp | 8 +++++++-
 lib/core/c++/hlbm.hpp                        | 1 +
 lib/core/c++/particle/aabb.hpp               | 4 +++-
 lib/core/tests/particles.cpp                 | 6 ++++++
 4 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/examples/poiseulle_particles_2d_gpu/step.hpp b/examples/poiseulle_particles_2d_gpu/step.hpp
index 52e8c59..aa0e382 100644
--- a/examples/poiseulle_particles_2d_gpu/step.hpp
+++ b/examples/poiseulle_particles_2d_gpu/step.hpp
@@ -18,10 +18,11 @@ saw::error_or<void> step(
 	auto& info_f = fields.template get<"info">();
 	auto& porous_f = macros.template get<"porosity">();
 
+	component<T,Desc,cmpt::HlbmParticle,encode::Sycl<saw::encode::Native>> particle;
+
 	// auto coll_ev = 
 	q.submit([&](acpp::sycl::handler& h){
 		component<T,Desc,cmpt::Hlbm,encode::Sycl<saw::encode::Native>> collision{0.8};
-		component<T,Desc,cmpt::HlbmParticle,encode::Sycl<saw::encode::Native>> particle;
 		component<T,Desc,cmpt::BounceBack,encode::Sycl<saw::encode::Native>> bb;
 		component<T,Desc,cmpt::AntiBounceBack<0u>,encode::Sycl<saw::encode::Native>> abb;
 
@@ -76,6 +77,11 @@ saw::error_or<void> step(
 		});
 	}).wait();
 
+	q.submit([&](acpp::sycl::handler& h){
+		h.parallel_for(acpp::sycl::range<1u>{1u}, [=](acpp::sycl::id<1u> idx){
+			particle.apply(fields,macros,particles,{{0u}},t_i);
+		});
+	}).wait();
 	
 	// Step
 	/*
diff --git a/lib/core/c++/hlbm.hpp b/lib/core/c++/hlbm.hpp
index 85e5357..0ba9cc2 100644
--- a/lib/core/c++/hlbm.hpp
+++ b/lib/core/c++/hlbm.hpp
@@ -142,6 +142,7 @@ public:
 			iterator<Desc::D>::apply([&](const auto& index){
 				// ask for the d_k value here.
 				// For every value im iterating over I need sth
+					std::cout<<"Pos: "<<index.at({0u}).get()<<" "<<index.at({1u}).get()<<std::endl;
 			},start,stop);
 
 			// Check
diff --git a/lib/core/c++/particle/aabb.hpp b/lib/core/c++/particle/aabb.hpp
index 8579695..d74ea88 100644
--- a/lib/core/c++/particle/aabb.hpp
+++ b/lib/core/c++/particle/aabb.hpp
@@ -7,6 +7,7 @@ namespace kel {
 namespace lbm {
 template<typename PGroup>
 class particle_aabb final {
+	static_assert(saw::always_false<PGroup>::value, "Not supported");
 };
 
 template<typename T, uint64_t D>
@@ -21,7 +22,8 @@ public:
 		sch::Member<sch::FixedArray<sch::UInt64,D>,"b">
 	>;
 public:
-	static constexpr saw::data<AABB> calculate(const saw::data<Schema>& p_grp, const saw::data<sch::FixedArray<sch::UInt64,1u>>& i, const saw::data<sch::FixedArray<sch::UInt64,D>>& meta){
+	template<typename Encode>
+	static constexpr saw::data<AABB> calculate(const saw::data<Schema,Encode>& p_grp, const saw::data<sch::FixedArray<sch::UInt64,1u>>& i, const saw::data<sch::FixedArray<sch::UInt64,D>>& meta){
 
 		saw::data<AABB> aabb;
 		auto& parts = p_grp.template get<"particles">();
diff --git a/lib/core/tests/particles.cpp b/lib/core/tests/particles.cpp
index 1c18fbb..de9477c 100644
--- a/lib/core/tests/particles.cpp
+++ b/lib/core/tests/particles.cpp
@@ -272,4 +272,10 @@ SAW_TEST("Verlet integration test 2D"){
 	}
 }
 */
+
+SAW_TEST("Particle / AABB"){
+	using namespace kel;
+
+
+}
 }
-- 
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