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#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 {
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});
lbm::verlet_step_lambda<sch::T,2u>(particle,{0.5});
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">();
auto& coll = part_a.template get<"collision">();
auto& radius = coll.template get<"radius">();
radius.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.set(1.0);
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.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.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("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;
}
}
}
}
*/
}
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