subsurface/core/equipment.cpp
Berthold Stoeger 286d8fe21c core: move get_max_mod() and get_max_mnd() to struct dive
Feels natural in a C++ code base.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00

497 lines
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// SPDX-License-Identifier: GPL-2.0
#ifdef __clang__
// Clang has a bug on zero-initialization of C structs.
#pragma clang diagnostic ignored "-Wmissing-field-initializers"
#endif
/* equipment.cpp */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include <limits.h>
#include "equipment.h"
#include "gettext.h"
#include "dive.h"
#include "divelist.h"
#include "divelog.h"
#include "errorhelper.h"
#include "pref.h"
#include "range.h"
#include "subsurface-string.h"
cylinder_t::cylinder_t() = default;
cylinder_t::~cylinder_t() = default;
static cylinder_t make_surface_air_cylinder()
{
cylinder_t res;
res.cylinder_use = NOT_USED;
return res;
}
static const cylinder_t surface_air_cylinder = make_surface_air_cylinder();
static void warn_index(size_t i, size_t max)
{
if (i >= max + 1) {
report_info("Warning: accessing invalid cylinder %lu (%lu existing)",
static_cast<unsigned long>(i), static_cast<unsigned long>(max));
}
}
cylinder_t &cylinder_table::operator[](size_t i)
{
warn_index(i, size());
return i < size() ? std::vector<cylinder_t>::operator[](i)
: const_cast<cylinder_t &>(surface_air_cylinder);
}
const cylinder_t &cylinder_table::operator[](size_t i) const
{
warn_index(i, size());
return i < size() ? std::vector<cylinder_t>::operator[](i)
: surface_air_cylinder;
}
weightsystem_t::weightsystem_t() = default;
weightsystem_t::~weightsystem_t() = default;
weightsystem_t::weightsystem_t(weight_t w, std::string desc, bool auto_filled)
: weight(w), description(std::move(desc)), auto_filled(auto_filled)
{
}
const char *cylinderuse_text[NUM_GAS_USE] = {
QT_TRANSLATE_NOOP("gettextFromC", "OC-gas"), QT_TRANSLATE_NOOP("gettextFromC", "diluent"), QT_TRANSLATE_NOOP("gettextFromC", "oxygen"), QT_TRANSLATE_NOOP("gettextFromC", "not used")
};
enum cylinderuse cylinderuse_from_text(const char *text)
{
for (int i = 0; i < static_cast<int>(NUM_GAS_USE); i++) {
if (same_string(text, cylinderuse_text[i]) || same_string(text, translate("gettextFromC", cylinderuse_text[i])))
return static_cast<enum cylinderuse>(i);
}
return static_cast<enum cylinderuse>(-1);
}
/* Add a metric or an imperial tank info structure. Copies the passed-in string. */
static void add_tank_info_metric(std::vector<tank_info> &table, const std::string &name, int ml, int bar)
{
table.push_back(tank_info{ name, .ml = ml, .bar = bar });
}
static void add_tank_info_imperial(std::vector<tank_info> &table, const std::string &name, int cuft, int psi)
{
table.push_back(tank_info{ name, .cuft = cuft, .psi = psi });
}
struct tank_info *get_tank_info(std::vector<tank_info> &table, const std::string &name)
{
auto it = std::find_if(table.begin(), table.end(), [&name](const tank_info &info)
{ return info.name == name; });
return it != table.end() ? &*it : nullptr;
}
void set_tank_info_data(std::vector<tank_info> &table, const std::string &name, volume_t size, pressure_t working_pressure)
{
struct tank_info *info = get_tank_info(table, name);
if (info) {
if (info->ml != 0 || info->bar != 0) {
info->bar = working_pressure.mbar / 1000;
info->ml = size.mliter;
} else {
info->psi = lrint(to_PSI(working_pressure));
info->cuft = lrint(ml_to_cuft(size.mliter) * mbar_to_atm(working_pressure.mbar));
}
} else {
// Metric is a better choice as the volume is independent of the working pressure
add_tank_info_metric(table, name, size.mliter, working_pressure.mbar / 1000);
}
}
std::pair<volume_t, pressure_t> extract_tank_info(const struct tank_info &info)
{
pressure_t working_pressure {
static_cast<int32_t>(info.bar != 0 ? info.bar * 1000 : psi_to_mbar(info.psi))
};
volume_t size { 0 };
if (info.ml != 0)
size.mliter = info.ml;
else if (working_pressure.mbar != 0)
size.mliter = lrint(cuft_to_l(info.cuft) * 1000 / mbar_to_atm(working_pressure.mbar));
return std::make_pair(size, working_pressure);
}
std::pair<volume_t, pressure_t> get_tank_info_data(const std::vector<tank_info> &table, const std::string &name)
{
// Here, we would need a const version of get_tank_info().
auto it = std::find_if(table.begin(), table.end(), [&name](const tank_info &info)
{ return info.name == name; });
return it != table.end() ? extract_tank_info(*it)
: std::make_pair(volume_t{0}, pressure_t{0});
}
void add_cylinder_description(const cylinder_type_t &type)
{
const std::string &desc = type.description;
if (desc.empty())
return;
if (std::any_of(tank_info_table.begin(), tank_info_table.end(),
[&desc](const tank_info &info) { return info.name == desc; }))
return;
add_tank_info_metric(tank_info_table, desc, type.size.mliter,
type.workingpressure.mbar / 1000);
}
void add_weightsystem_description(const weightsystem_t &weightsystem)
{
if (weightsystem.description.empty())
return;
auto it = std::find_if(ws_info_table.begin(), ws_info_table.end(),
[&weightsystem](const ws_info &info)
{ return info.name == weightsystem.description; });
if (it != ws_info_table.end()) {
it->weight = weightsystem.weight;
return;
}
ws_info_table.push_back(ws_info { std::string(weightsystem.description), weightsystem.weight });
}
weight_t get_weightsystem_weight(const std::string &name)
{
// Also finds translated names (TODO: should only consider non-user items).
auto it = std::find_if(ws_info_table.begin(), ws_info_table.end(),
[&name](const ws_info &info)
{ return info.name == name || translate("gettextFromC", info.name.c_str()) == name; });
return it != ws_info_table.end() ? it->weight : weight_t();
}
void add_cylinder(struct cylinder_table *t, int idx, cylinder_t cyl)
{
t->insert(t->begin() + idx, std::move(cyl));
}
bool same_weightsystem(weightsystem_t w1, weightsystem_t w2)
{
return w1.weight.grams == w2.weight.grams &&
w1.description == w2.description;
}
void get_gas_string(struct gasmix gasmix, char *text, int len)
{
if (gasmix_is_air(gasmix))
snprintf(text, len, "%s", translate("gettextFromC", "air"));
else if (get_he(gasmix) == 0 && get_o2(gasmix) < 1000)
snprintf(text, len, translate("gettextFromC", "EAN%d"), (get_o2(gasmix) + 5) / 10);
else if (get_he(gasmix) == 0 && get_o2(gasmix) == 1000)
snprintf(text, len, "%s", translate("gettextFromC", "oxygen"));
else
snprintf(text, len, "(%d/%d)", (get_o2(gasmix) + 5) / 10, (get_he(gasmix) + 5) / 10);
}
/* Returns a static char buffer - only good for immediate use by printf etc */
const char *gasname(struct gasmix gasmix)
{
static char gas[64];
get_gas_string(gasmix, gas, sizeof(gas));
return gas;
}
int gas_volume(const cylinder_t *cyl, pressure_t p)
{
double bar = p.mbar / 1000.0;
double z_factor = gas_compressibility_factor(cyl->gasmix, bar);
return lrint(cyl->type.size.mliter * bar_to_atm(bar) / z_factor);
}
int find_best_gasmix_match(struct gasmix mix, const struct cylinder_table &cylinders)
{
int best = -1, score = INT_MAX;
for (auto [i, match]: enumerated_range(cylinders)) {
int distance = gasmix_distance(mix, match.gasmix);
if (distance >= score)
continue;
best = i;
score = distance;
}
return best;
}
/*
* We hardcode the most common standard cylinders,
* we should pick up any other names from the dive
* logs directly.
*/
static void add_default_tank_infos(std::vector<tank_info> &table)
{
/* Size-only metric cylinders */
add_tank_info_metric(table, "10.0", 10000, 0);
add_tank_info_metric(table, "11.1", 11100, 0);
/* Most common AL cylinders */
add_tank_info_imperial(table, "AL40", 40, 3000);
add_tank_info_imperial(table, "AL50", 50, 3000);
add_tank_info_imperial(table, "AL63", 63, 3000);
add_tank_info_imperial(table, "AL72", 72, 3000);
add_tank_info_imperial(table, "AL80", 80, 3000);
add_tank_info_imperial(table, "AL100", 100, 3300);
/* Metric AL cylinders */
add_tank_info_metric(table, "ALU7", 7000, 200);
/* Somewhat common LP steel cylinders */
add_tank_info_imperial(table, "LP85", 85, 2640);
add_tank_info_imperial(table, "LP95", 95, 2640);
add_tank_info_imperial(table, "LP108", 108, 2640);
add_tank_info_imperial(table, "LP121", 121, 2640);
/* Somewhat common HP steel cylinders */
add_tank_info_imperial(table, "HP65", 65, 3442);
add_tank_info_imperial(table, "HP80", 80, 3442);
add_tank_info_imperial(table, "HP100", 100, 3442);
add_tank_info_imperial(table, "HP117", 117, 3442);
add_tank_info_imperial(table, "HP119", 119, 3442);
add_tank_info_imperial(table, "HP130", 130, 3442);
/* Common European steel cylinders */
add_tank_info_metric(table, "3 232 bar", 3000, 232);
add_tank_info_metric(table, "3 300 bar", 3000, 300);
add_tank_info_metric(table, "10 200 bar", 10000, 200);
add_tank_info_metric(table, "10 232 bar", 10000, 232);
add_tank_info_metric(table, "10 300 bar", 10000, 300);
add_tank_info_metric(table, "12 200 bar", 12000, 200);
add_tank_info_metric(table, "12 232 bar", 12000, 232);
add_tank_info_metric(table, "12 300 bar", 12000, 300);
add_tank_info_metric(table, "15 200 bar", 15000, 200);
add_tank_info_metric(table, "15 232 bar", 15000, 232);
add_tank_info_metric(table, "D7 300 bar", 14000, 300);
add_tank_info_metric(table, "D8.5 232 bar", 17000, 232);
add_tank_info_metric(table, "D12 232 bar", 24000, 232);
add_tank_info_metric(table, "D13 232 bar", 26000, 232);
add_tank_info_metric(table, "D15 232 bar", 30000, 232);
add_tank_info_metric(table, "D16 232 bar", 32000, 232);
add_tank_info_metric(table, "D18 232 bar", 36000, 232);
add_tank_info_metric(table, "D20 232 bar", 40000, 232);
}
std::vector<tank_info> tank_info_table;
void reset_tank_info_table(std::vector<tank_info> &table)
{
table.clear();
if (prefs.display_default_tank_infos)
add_default_tank_infos(table);
/* Add cylinders from dive list */
for (auto &dive: divelog.dives) {
for (auto &cyl: dive->cylinders)
add_cylinder_description(cyl.type);
}
}
/*
* We hardcode the most common weight system types
* This is a bit odd as the weight system types don't usually encode weight
*/
struct std::vector<ws_info> ws_info_table = {
{ QT_TRANSLATE_NOOP("gettextFromC", "integrated"), weight_t() },
{ QT_TRANSLATE_NOOP("gettextFromC", "belt"), weight_t() },
{ QT_TRANSLATE_NOOP("gettextFromC", "ankle"), weight_t() },
{ QT_TRANSLATE_NOOP("gettextFromC", "backplate"), weight_t() },
{ QT_TRANSLATE_NOOP("gettextFromC", "clip-on"), weight_t() },
};
void remove_cylinder(struct dive *dive, int idx)
{
dive->cylinders.erase(dive->cylinders.begin() + idx);
}
void remove_weightsystem(struct dive *dive, int idx)
{
dive->weightsystems.erase(dive->weightsystems.begin() + idx);
}
void add_to_weightsystem_table(weightsystem_table *table, int idx, weightsystem_t ws)
{
idx = std::clamp(idx, 0, static_cast<int>(table->size()));
table->insert(table->begin() + idx, std::move(ws));
}
void set_weightsystem(struct dive *dive, int idx, weightsystem_t ws)
{
if (idx < 0 || static_cast<size_t>(idx) >= dive->weightsystems.size())
return;
dive->weightsystems[idx] = std::move(ws);
}
/* when planning a dive we need to make sure that all cylinders have a sane depth assigned
* and if we are tracking gas consumption the pressures need to be reset to start = end = workingpressure */
void reset_cylinders(struct dive *dive, bool track_gas)
{
pressure_t decopo2 = {.mbar = prefs.decopo2};
for (cylinder_t &cyl: dive->cylinders) {
if (cyl.depth.mm == 0) /* if the gas doesn't give a mod, calculate based on prefs */
cyl.depth = dive->gas_mod(cyl.gasmix, decopo2, M_OR_FT(3,10));
if (track_gas)
cyl.start.mbar = cyl.end.mbar = cyl.type.workingpressure.mbar;
cyl.gas_used.mliter = 0;
cyl.deco_gas_used.mliter = 0;
}
}
static void copy_cylinder_type(const cylinder_t &s, cylinder_t &d)
{
d.type = s.type;
d.gasmix = s.gasmix;
d.depth = s.depth;
d.cylinder_use = s.cylinder_use;
d.manually_added = true;
}
/* copy the equipment data part of the cylinders but keep pressures */
void copy_cylinder_types(const struct dive *s, struct dive *d)
{
if (!s || !d)
return;
for (size_t i = 0; i < s->cylinders.size() && i < d->cylinders.size(); i++)
copy_cylinder_type(s->cylinders[i], d->cylinders[i]);
for (size_t i = d->cylinders.size(); i < s->cylinders.size(); i++)
d->cylinders.push_back(s->cylinders[i]);
}
cylinder_t *add_empty_cylinder(struct cylinder_table *t)
{
t->emplace_back();
return &t->back();
}
cylinder_t *get_or_create_cylinder(struct dive *d, int idx)
{
if (idx < 0) {
report_info("Warning: accessing invalid cylinder %d", idx);
return NULL;
}
while (static_cast<size_t>(idx) >= d->cylinders.size())
add_empty_cylinder(&d->cylinders);
return &d->cylinders[idx];
}
/* if a default cylinder is set, use that */
void fill_default_cylinder(const struct dive *dive, cylinder_t *cyl)
{
const std::string &cyl_name = prefs.default_cylinder;
pressure_t pO2 = {.mbar = static_cast<int>(lrint(prefs.modpO2 * 1000.0))};
if (cyl_name.empty())
return;
for (auto &ti: tank_info_table) {
if (ti.name == cyl_name) {
cyl->type.description = ti.name;
if (ti.ml) {
cyl->type.size.mliter = ti.ml;
cyl->type.workingpressure.mbar = ti.bar * 1000;
} else {
cyl->type.workingpressure.mbar = psi_to_mbar(ti.psi);
if (ti.psi)
cyl->type.size.mliter = lrint(cuft_to_l(ti.cuft) * 1000 / bar_to_atm(psi_to_bar(ti.psi)));
}
// MOD of air
cyl->depth = dive->gas_mod(cyl->gasmix, pO2, 1);
return;
}
}
}
cylinder_t default_cylinder(const struct dive *d)
{
cylinder_t res;
fill_default_cylinder(d, &res);
return res;
}
cylinder_t create_new_cylinder(const struct dive *d)
{
cylinder_t cyl = default_cylinder(d);
cyl.start = cyl.type.workingpressure;
cyl.cylinder_use = OC_GAS;
return cyl;
}
cylinder_t create_new_manual_cylinder(const struct dive *d)
{
cylinder_t cyl = create_new_cylinder(d);
cyl.manually_added = true;
return cyl;
}
void add_default_cylinder(struct dive *d)
{
// Only add if there are no cylinders yet
if (!d->cylinders.empty())
return;
cylinder_t cyl;
if (!prefs.default_cylinder.empty()) {
cyl = create_new_cylinder(d);
} else {
// roughly an AL80
cyl.type.description = translate("gettextFromC", "unknown");
cyl.type.size.mliter = 11100;
cyl.type.workingpressure.mbar = 207000;
}
add_cylinder(&d->cylinders, 0, cyl);
reset_cylinders(d, false);
}
static bool show_cylinder(const struct dive *d, int i)
{
if (d->is_cylinder_used(i))
return true;
const cylinder_t &cyl = d->cylinders[i];
if (cyl.start.mbar || cyl.sample_start.mbar ||
cyl.end.mbar || cyl.sample_end.mbar)
return true;
if (cyl.manually_added)
return true;
/*
* The cylinder has some data, but none of it is very interesting,
* it has no pressures and no gas switches. Do we want to show it?
*/
return false;
}
/* The unused cylinders at the end of the cylinder list are hidden. */
int first_hidden_cylinder(const struct dive *d)
{
size_t res = d->cylinders.size();
while (res > 0 && !show_cylinder(d, res - 1))
--res;
return static_cast<int>(res);
}
#ifdef DEBUG_CYL
void dump_cylinders(struct dive *dive, bool verbose)
{
printf("Cylinder list:\n");
for (int i = 0; i < dive->cylinders; i++) {
cylinder_t *cyl = dive->get_cylinder(i);
printf("%02d: Type %s, %3.1fl, %3.0fbar\n", i, cyl->type.description.c_str(), cyl->type.size.mliter / 1000.0, cyl->type.workingpressure.mbar / 1000.0);
printf(" Gasmix O2 %2.0f%% He %2.0f%%\n", cyl->gasmix.o2.permille / 10.0, cyl->gasmix.he.permille / 10.0);
printf(" Pressure Start %3.0fbar End %3.0fbar Sample start %3.0fbar Sample end %3.0fbar\n", cyl->start.mbar / 1000.0, cyl->end.mbar / 1000.0, cyl->sample_start.mbar / 1000.0, cyl->sample_end.mbar / 1000.0);
if (verbose) {
printf(" Depth %3.0fm\n", cyl->depth.mm / 1000.0);
printf(" Added %s\n", (cyl->manually_added ? "manually" : ""));
printf(" Gas used Bottom %5.0fl Deco %5.0fl\n", cyl->gas_used.mliter / 1000.0, cyl->deco_gas_used.mliter / 1000.0);
printf(" Use %d\n", cyl->cylinder_use);
printf(" Bestmix %s %s\n", (cyl->bestmix_o2 ? "O2" : " "), (cyl->bestmix_he ? "He" : " "));
}
}
}
#endif