/*******************************************************************************
* This file is part of SWIFT.
* Copyright (c) 2016 Matthieu Schaller (schaller@strw.leidenuniv.nl)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*
******************************************************************************/
#ifndef SWIFT_BASIC_STAR_PART_H
#define SWIFT_BASIC_STAR_PART_H
/* Some standard headers. */
#include
/* Read additional subgrid models */
#include "chemistry_struct.h"
#include "feedback_struct.h"
#include "particle_splitting_struct.h"
#include "rt_struct.h"
#include "star_formation_struct.h"
#include "tracers_struct.h"
/**
* @brief Particle fields for the star particles.
*
* All quantities related to gravity are stored in the associate #gpart.
*/
struct spart {
/*! Particle ID. */
long long id;
/*! Pointer to corresponding gravity part. */
struct gpart* gpart;
/*! Particle position. */
double x[3];
/* Offset between current position and position at last tree rebuild. */
float x_diff[3];
/* Offset between current position and position at last tree rebuild. */
float x_diff_sort[3];
/*! Particle velocity. */
float v[3];
/*! Star mass */
float mass;
/* Particle cutoff radius. */
float h;
struct {
/* Number of neighbours. */
float wcount;
/* Number of neighbours spatial derivative. */
float wcount_dh;
} density;
/* Not used in the default stars */
union {
float birth_time;
float birth_scale_factor;
};
/*! Particle time bin */
timebin_t time_bin;
/*! Tree-depth at which size / 2 <= h * gamma < size */
char depth_h;
/*! Star formation struct */
struct star_formation_spart_data sf_data;
/*! Feedback structure */
struct feedback_spart_data feedback_data;
/*! Tracer structure */
struct tracers_spart_data tracers_data;
/*! Chemistry structure */
struct chemistry_spart_data chemistry_data;
/*! Splitting structure */
struct particle_splitting_data split_data;
/*! Radiative Transfer data */
struct rt_spart_data rt_data;
#ifdef WITH_CSDS
/* Additional data for the particle csds */
struct csds_part_data csds_data;
#endif
#ifdef SWIFT_DEBUG_CHECKS
/* Time of the last drift */
integertime_t ti_drift;
/* Time of the last kick */
integertime_t ti_kick;
#endif
#ifdef DEBUG_INTERACTIONS_STARS
/*! Number of interactions in the density SELF and PAIR */
int num_ngb_density;
/*! List of interacting particles in the density SELF and PAIR */
long long ids_ngbs_density[MAX_NUM_OF_NEIGHBOURS_STARS];
/*! Number of interactions in the force SELF and PAIR */
int num_ngb_force;
/*! List of interacting particles in the force SELF and PAIR */
long long ids_ngbs_force[MAX_NUM_OF_NEIGHBOURS_STARS];
#endif
} SWIFT_STRUCT_ALIGN;
/**
* @brief Contains all the constants and parameters of the stars scheme
*/
struct stars_props {
/*! Resolution parameter */
float eta_neighbours;
/*! Target weightd number of neighbours (for info only)*/
float target_neighbours;
/*! Smoothing length tolerance */
float h_tolerance;
/*! Tolerance on neighbour number (for info only)*/
float delta_neighbours;
/*! Maximal number of iterations to converge h */
int max_smoothing_iterations;
/*! Maximal change of h over one time-step */
float log_max_h_change;
};
#endif /* SWIFT_BASIC_STAR_PART_H */