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| author | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-07-05 15:59:23 +0200 |
|---|---|---|
| committer | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-07-05 15:59:23 +0200 |
| commit | c0549d71b2109f10c1238db8b22362e7826ba61b (patch) | |
| tree | 16cd5264fcc3afe912e1b1b67738c8940d6d1177 /modules/core/tests/particles.cpp | |
| parent | 9a3147bc79caf3c0fb1a9cdee29d156b5ff092c7 (diff) | |
| download | libs-lbm-c0549d71b2109f10c1238db8b22362e7826ba61b.tar.gz | |
Just rename from lib to modules
Diffstat (limited to 'modules/core/tests/particles.cpp')
| -rw-r--r-- | modules/core/tests/particles.cpp | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/modules/core/tests/particles.cpp b/modules/core/tests/particles.cpp new file mode 100644 index 0000000..133c343 --- /dev/null +++ b/modules/core/tests/particles.cpp @@ -0,0 +1,281 @@ +#include <forstio/test/suite.hpp> + +#include <iostream> +#include "../c++/particle/particle.hpp" + +namespace { +namespace sch { +using namespace kel::lbm::sch; + +using T = Float64; +} +SAW_TEST("Verlet step 2D - Planar"){ + using namespace kel; + + saw::data<sch::Particle<sch::T,2u>> particle; + auto& body = particle.template get<"rigid_body">(); + auto& pos = body.template get<"position">(); + auto& pos_old = body.template get<"position_old">(); + + // auto& rot = body.template get<"rotation">(); + auto& acc = body.template get<"acceleration">(); + + acc.at({{0}}).set({1.0}); + + saw::data<sch::Scalar<sch::T>> dt; + dt.at({}).set(0.5); + lbm::verlet_step_lambda<sch::T,2u>(particle,dt); + + SAW_EXPECT(pos.at({{0}}).get() == 0.25, std::string{"Incorrect Pos X: "} + std::to_string(pos.at({{0}}).get())); + SAW_EXPECT(pos.at({{1}}).get() == 0.0, std::string{"Incorrect Pos Y: "} + std::to_string(pos.at({{1}}).get())); +} +/* +SAW_TEST("No Collision Spheroid 2D"){ + 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">(); + + pos.at({{0u}}) = 0.1; + pos.at({{1u}}) = 0.2; + + } + saw::data<sch::Particle<sch::T,2u>> part_b; + { + auto& body = part_b.template get<"rigid_body">(); + auto& pos = body.template get<"position">(); + + pos.at({{0u}}) = -2.1; + pos.at({{1u}}) = 0.0; + } + + bool have_collided = lbm::broadphase_collision_check<sch::T,2u>(part_a,part_b); + SAW_EXPECT(not have_collided, "Particles shouldn't collide"); +} +*/ +/* +SAW_TEST("Collision Spheroid 2D"){ + 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& coll = part_a.template get<"collision">(); + auto& radius = coll.template get<"radius">(); + + radius.at({}).set(1.0); + + pos.at({{0u}}) = 0.1; + pos.at({{1u}}) = 0.2; + + } + saw::data<sch::Particle<sch::T,2u>> part_b; + { + auto& body = part_b.template get<"rigid_body">(); + auto& pos = body.template get<"position">(); + auto& coll = part_b.template get<"collision">(); + auto& radius = coll.template get<"radius">(); + + radius.at({}).set(1.0); + + pos.at({{0u}}) = -1.5; + pos.at({{1u}}) = 0.0; + } + + bool have_collided = lbm::broadphase_collision_check<sch::T,2u>(part_a,part_b); + SAW_EXPECT(have_collided, "Particles should collide"); +} +*/ +/* +SAW_TEST("Moving particles 2D"){ + 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.at({}).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.at({}).set(1.0); + + pos.at({{0u}}) = 5.0; + pos.at({{1u}}) = 0.0; + pos_old = pos; + acc.at({{0u}}) = -0.1; + } + + saw::data<sch::Scalar<sch::T>> dt; + dt.at({}).set(0.5); + bool has_collided = false; + for(uint64_t i = 0u; i < 32u; ++i){ + lbm::verlet_step_lambda<sch::T,2u>(part_a,dt); + lbm::verlet_step_lambda<sch::T,2u>(part_b,dt); + + has_collided = lbm::broadphase_collision_check<sch::T,2u>(part_a,part_b); + if(has_collided){ + std::cout<<"Collided at: "<<i<<std::endl; + break; + } + } + + SAW_EXPECT(has_collided, "Expecting collision within those steps"); +} +*/ +SAW_TEST("Particle Matrix Rotation"){ + 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& acc = body.template get<"acceleration">(); + + pos.at({{0u}}) = -5.0; + pos.at({{1u}}) = 0.2; + pos_old = pos; + } +} +/* + +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.at({}).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.at({}).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; + + lbm::particle_circle_geometry<sch::T> geo; + + auto mask = geo.generate_mask<sch::T>(9u,1u); + + auto& grid = mask.template get<"grid">(); + + for(saw::data<sch::UInt64> i{0u}; i < grid.template get_dim_size<0>(); ++i){ + for(saw::data<sch::UInt64> j{0u}; j < grid.template get_dim_size<1>(); ++j){ + std::cout<<grid.at({{i,j}}).get()<<" "; + } + std::cout<<"\n"; + } + std::cout<<std::endl; + + //saw::data<sch::Array<sch::T,2>> reference_mask{{{4+2,4+2}}}; + //reference_mask.at({{0,0}}); +} +*/ +/* +SAW_TEST("Verlet integration test 2D"){ + using namespace kel; + lbm::particle_system<sch::T,2,sch::Particle<sch::T,2>> system; + + { + saw::data<sch::Particle<sch::T,2>> particle; + auto& rb = particle.template get<"rigid_body">(); + auto& acc = rb.template get<"acceleration">(); + auto& pos = rb.template get<"position">(); + auto& pos_old = rb.template get<"position_old">(); + pos = {{1e-1,1e-1}}; + pos_old = {{0.0, 0.0}}; + acc = {{0.0,-1e1}}; + + auto eov = system.add_particle(std::move(particle)); + SAW_EXPECT(eov.is_value(), "Expected no error :)"); + } + { + auto& p = system.at({0u}); + auto& rb = p.template get<"rigid_body">(); + auto& pos = rb.template get<"position">(); + + for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{2u}; ++i){ + std::cout<<pos.at(i).get()<<" "; + } + std::cout<<std::endl; + } + + for(uint64_t i = 0u; i < 36u; ++i){ + system.step(saw::data<sch::T>{1e-1}); + + { + auto& p = system.at({0u}); + auto& rb = p.template get<"rigid_body">(); + auto& pos = rb.template get<"position">(); + + for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{2u}; ++i){ + std::cout<<pos.at(i).get()<<" "; + } + std::cout<<"\n"; + + if(pos.at({1u}).get() < 0.0){ + break; + } + } + + } +} +*/ + +SAW_TEST("Spheroid Particle / AABB"){ + using namespace kel; + + +} +} |
