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Merge pull request #40 from bluescarni/pr/coll
Initial support for collision detection.
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2018 Francesco Biscani ([email protected]) | ||
| // | ||
| // This file is part of the rakau library. | ||
| // | ||
| // This Source Code Form is subject to the terms of the Mozilla | ||
| // Public License v. 2.0. If a copy of the MPL was not distributed | ||
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
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| #include <initializer_list> | ||
| #include <iostream> | ||
| #include <numeric> | ||
| #include <optional> | ||
| #include <tuple> | ||
| #include <vector> | ||
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| #include <tbb/task_scheduler_init.h> | ||
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| #include <rakau/tree.hpp> | ||
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| #include "common.hpp" | ||
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| using namespace rakau; | ||
| using namespace rakau_benchmark; | ||
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| int main(int argc, char **argv) | ||
| { | ||
| std::cout.precision(20); | ||
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| const auto popts = parse_coll_benchmark_options(argc, argv); | ||
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| std::optional<tbb::task_scheduler_init> t_init; | ||
| if (std::get<2>(popts)) { | ||
| t_init.emplace(std::get<2>(popts)); | ||
| } | ||
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| auto runner = [&popts](auto x) { | ||
| using fp_type = decltype(x); | ||
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| const auto [nparts, max_leaf_n, _1, bsize, a, parinit, _2, ordered, psize] = popts; | ||
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| auto parts = get_plummer_sphere(nparts, static_cast<fp_type>(a), static_cast<fp_type>(bsize), parinit); | ||
| const std::vector<fp_type> aabb_sizes(nparts, psize); | ||
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| octree<fp_type> t{kwargs::x_coords = parts.data() + nparts, | ||
| kwargs::y_coords = parts.data() + 2 * nparts, | ||
| kwargs::z_coords = parts.data() + 3 * nparts, | ||
| kwargs::masses = parts.data(), | ||
| kwargs::nparts = nparts, | ||
| kwargs::max_leaf_n = max_leaf_n}; | ||
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| std::cout << t << '\n'; | ||
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| decltype(t.compute_cgraph_o(aabb_sizes.data())) cgraph; | ||
| if (ordered) { | ||
| cgraph = t.compute_cgraph_o(aabb_sizes.data()); | ||
| } else { | ||
| cgraph = t.compute_cgraph_u(aabb_sizes.data()); | ||
| } | ||
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| const auto acc = std::accumulate(cgraph.begin(), cgraph.end(), 0ull, | ||
| [](auto cur, const auto &c) { return cur + c.size(); }); | ||
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| std::cout << "Total number of collisions detected: " << acc / 2u << '\n'; | ||
| }; | ||
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| if (std::get<6>(popts) == "float") { | ||
| runner(0.f); | ||
| } else { | ||
| runner(0.); | ||
| } | ||
| } |
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