From 1b8ff0752a7622534199e0d8e8c2801967eed4ba Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Tue, 13 Jan 2026 16:31:02 +0100
Subject: Reworking the packages sets

---
 lib/core/c++/particle/particle.hpp | 19 ++++++++++++++++
 lib/core/tests/particles.cpp       | 44 ++++++++++++++++++++++++++++++++------
 2 files changed, 57 insertions(+), 6 deletions(-)

(limited to 'lib')

diff --git a/lib/core/c++/particle/particle.hpp b/lib/core/c++/particle/particle.hpp
index cea80f0..557707d 100644
--- a/lib/core/c++/particle/particle.hpp
+++ b/lib/core/c++/particle/particle.hpp
@@ -91,6 +91,25 @@ constexpr auto verlet_step_lambda = [](saw::data<sch::Particle<T,D>>& particle,
 		pos = pos_new;
 };
 
+template<typename T, uint64_t D>
+constexpr auto handle_collision = [](saw::data<sch::Particle<T,D>>& left, saw::data<sch::Particle<T,D>>& right){
+	auto& rb_l = left.template get<"rigid_body">();
+	auto& rb_r = right.template get<"rigid_body">();
+
+	auto& pos_l = rb_l.template get<"position">();
+	auto& pos_old_l = rb_l.template get<"position_old">();
+	auto vel_l = pos_l - pos_old_l;
+	auto& mass_l = left.template get<"mass">();
+
+
+	/**
+	 * E to 0
+	 */
+
+
+
+};
+
 
 template<typename T, uint64_t D>
 constexpr auto broadphase_collision_distance = [](saw::data<sch::Particle<T,D>>& left, saw::data<sch::Particle<T,D>>& right) -> std::pair<bool,saw::data<sch::Scalar<T>>>{
diff --git a/lib/core/tests/particles.cpp b/lib/core/tests/particles.cpp
index 7c0c748..366c2a2 100644
--- a/lib/core/tests/particles.cpp
+++ b/lib/core/tests/particles.cpp
@@ -1,9 +1,7 @@
 #include <forstio/test/suite.hpp>
 
 #include <iostream>
-//#include "../c++/particle/geometry/circle.hpp"
 #include "../c++/particle/particle.hpp"
-#include <forstio/codec/data.hpp>
 
 namespace {
 namespace sch {
@@ -143,15 +141,49 @@ SAW_TEST("Moving particles 2D"){
 			std::cout<<"Collided at: "<<i<<std::endl;
 			break;
 		}
-		std::cout<<part_a.template get<"rigid_body">().template get<"position">().at({{0u}}).get();
-		std::cout<<" ";
-		std::cout<<part_b.template get<"rigid_body">().template get<"position">().at({{0u}}).get();
-		std::cout<<std::endl;
 	}
 
 	SAW_EXPECT(has_collided, "Expecting collision within those steps");
 }
 
+SAW_TEST("Particle Collision Impulse"){
+	using namespace kel;
+
+	saw::data<sch::Particle<sch::T,2u>> part_a;
+	{
+		auto& body = part_a.template get<"rigid_body">();
+		auto& pos = body.template get<"position">();
+		auto& pos_old = body.template get<"position_old">();
+		auto& coll = part_a.template get<"collision">();
+		auto& radius = coll.template get<"radius">();
+		auto& acc = body.template get<"acceleration">();
+
+		radius.set(1.0);
+
+		pos.at({{0u}}) = -5.0;
+		pos.at({{1u}}) = 0.2;
+		pos_old = pos;
+		acc.at({{0u}}) = 0.1;
+
+	}
+	saw::data<sch::Particle<sch::T,2u>> part_b;
+	{
+		auto& body = part_b.template get<"rigid_body">();
+		auto& pos = body.template get<"position">();
+		auto& pos_old = body.template get<"position_old">();
+		auto& coll = part_b.template get<"collision">();
+		auto& radius = coll.template get<"radius">();
+		auto& acc = body.template get<"acceleration">();
+
+		radius.set(1.5);
+		
+		pos.at({{0u}}) = 5.0;
+		pos.at({{1u}}) = 0.0;
+		pos_old = pos;
+		acc.at({{0u}}) = -0.1;
+	}
+}
+
 /*
 SAW_TEST("Minor Test for mask"){
 	using namespace kel;
-- 
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