impl.hpp

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/// @file backends/seq/impl.hpp
/// @brief Private declarations for the sequential SPH backend.
/// Only included by apps/fluid_sim/fluid.cpp and heat.cpp (dispatch).
#pragma once
 
#include "particle.hpp"
#include "rigid_body.hpp"
#include "spatial_hash.hpp"
#include "fluid.hpp"
#include "heat.hpp"
#include <vector>
 
namespace physics::backends::seq {
 
/// Newton's 3rd law pair traversal  -- O(n*k/2).
void compute_density_pressure(std::vector<Particle>& particles,
                               const FluidParams&     params,
                               const SpatialHash&     grid);
 
/// Newton's 3rd law pair traversal  -- O(n*k/2).
void compute_forces(std::vector<Particle>& particles,
                    const FluidParams&     params,
                    const SpatialHash&     grid);
 
void body_collisions(std::vector<Particle>&        particles,
                     const std::vector<RigidBody>& bodies,
                     const FluidParams&             params);
 
void integrate(std::vector<Particle>& particles, const FluidParams& params);
 
void enforce_boundaries(std::vector<Particle>& particles, const FluidParams& params);
 
void update_temp_range(const std::vector<Particle>&        particles,
                       const std::vector<RigidBody>&       bodies,
                       float& T_min, float& T_max);
 
void integrate_bodies(std::vector<RigidBody>& bodies, const FluidParams& params);
 
void heat_compute(std::vector<Particle>&        particles,
                  const std::vector<RigidBody>& bodies,
                  const SpatialHash&             grid,
                  const HeatParams&              params);
 
} // namespace physics::backends::seq