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35dc814105
This sets up a standard dive scenario (30 minutes at 260ft/79m, EAN36 and Oxygen as deco gases, last stop at 20ft/6m) and calls the planner to set up a dive plan given certain standard gases. Instead of trying to verify the complete plans it checks that we switch to the deco gases at the right depth and the complete duration of the dive matches our expectation. The test intentionally fails right now for imperial as we have the wrong switch depth for Oxygen. See how useful tests are? On the downside, the test does NOT produce the same plan as Subsurface when I try to create a consistent setup for both - and I have not been able to figure out why. There must be some other parameters that I'm not setting, but I haven't identified them, yet. It's very small differences, for example in the metric case the stops at 21m, 9m, and 6m are each one minute shorter in the test than it what Subsurface calculates. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
1311 lines
44 KiB
C
1311 lines
44 KiB
C
/* planner.c
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*
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* code that allows us to plan future dives
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*
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* (c) Dirk Hohndel 2013
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*/
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#include <assert.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <string.h>
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#include "dive.h"
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#include "divelist.h"
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#include "planner.h"
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#include "gettext.h"
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#include "libdivecomputer/parser.h"
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#define TIMESTEP 2 /* second */
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#define DECOTIMESTEP 60 /* seconds. Unit of deco stop times */
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int decostoplevels_metric[] = { 0, 3000, 6000, 9000, 12000, 15000, 18000, 21000, 24000, 27000,
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30000, 33000, 36000, 39000, 42000, 45000, 48000, 51000, 54000, 57000,
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60000, 63000, 66000, 69000, 72000, 75000, 78000, 81000, 84000, 87000,
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90000, 100000, 110000, 120000, 130000, 140000, 150000, 160000, 170000,
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180000, 190000, 200000, 220000, 240000, 260000, 280000, 300000,
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320000, 340000, 360000, 380000 };
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int decostoplevels_imperial[] = { 0, 3048, 6096, 9144, 12192, 15240, 18288, 21336, 24384, 27432,
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30480, 33528, 36576, 39624, 42672, 45720, 48768, 51816, 54864, 57912,
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60960, 64008, 67056, 70104, 73152, 76200, 79248, 82296, 85344, 88392,
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91440, 101600, 111760, 121920, 132080, 142240, 152400, 162560, 172720,
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182880, 193040, 203200, 223520, 243840, 264160, 284480, 304800,
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325120, 345440, 365760, 386080 };
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int decostoplevels[sizeof(decostoplevels_metric) / sizeof(int)];
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double plangflow, plangfhigh;
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bool plan_verbatim, plan_display_runtime, plan_display_duration, plan_display_transitions;
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const char *disclaimer;
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#if DEBUG_PLAN
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void dump_plan(struct diveplan *diveplan)
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{
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struct divedatapoint *dp;
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struct tm tm;
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if (!diveplan) {
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printf("Diveplan NULL\n");
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return;
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}
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utc_mkdate(diveplan->when, &tm);
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printf("\nDiveplan @ %04d-%02d-%02d %02d:%02d:%02d (surfpres %dmbar):\n",
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tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
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tm.tm_hour, tm.tm_min, tm.tm_sec,
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diveplan->surface_pressure);
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dp = diveplan->dp;
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while (dp) {
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printf("\t%3u:%02u: %dmm gas: %d o2 %d h2\n", FRACTION(dp->time, 60), dp->depth, get_o2(&dp->gasmix), get_he(&dp->gasmix));
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dp = dp->next;
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}
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}
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#endif
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bool diveplan_empty(struct diveplan *diveplan)
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{
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struct divedatapoint *dp;
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if (!diveplan || !diveplan->dp)
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return true;
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dp = diveplan->dp;
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while (dp) {
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if (dp->time)
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return false;
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dp = dp->next;
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}
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return true;
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}
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/* get the gas at a certain time during the dive */
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void get_gas_at_time(struct dive *dive, struct divecomputer *dc, duration_t time, struct gasmix *gas)
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{
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// we always start with the first gas, so that's our gas
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// unless an event tells us otherwise
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struct event *event = dc->events;
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*gas = dive->cylinder[0].gasmix;
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while (event && event->time.seconds <= time.seconds) {
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if (!strcmp(event->name, "gaschange")) {
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int cylinder_idx = get_cylinder_index(dive, event);
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*gas = dive->cylinder[cylinder_idx].gasmix;
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}
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event = event->next;
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}
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}
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int get_gasidx(struct dive *dive, struct gasmix *mix)
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{
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int gasidx = -1;
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while (++gasidx < MAX_CYLINDERS)
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if (gasmix_distance(&dive->cylinder[gasidx].gasmix, mix) < 100)
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return gasidx;
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return -1;
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}
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double interpolate_transition(struct dive *dive, duration_t t0, duration_t t1, depth_t d0, depth_t d1, const struct gasmix *gasmix, o2pressure_t po2)
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{
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int j;
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double tissue_tolerance = 0.0;
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for (j = t0.seconds; j < t1.seconds; j++) {
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int depth = interpolate(d0.mm, d1.mm, j - t0.seconds, t1.seconds - t0.seconds);
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tissue_tolerance = add_segment(depth_to_mbar(depth, dive) / 1000.0, gasmix, 1, po2.mbar, dive, prefs.bottomsac);
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}
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return tissue_tolerance;
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}
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/* returns the tissue tolerance at the end of this (partial) dive */
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double tissue_at_end(struct dive *dive, char **cached_datap)
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{
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struct divecomputer *dc;
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struct sample *sample, *psample;
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int i;
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depth_t lastdepth = {};
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duration_t t0 = {}, t1 = {};
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double tissue_tolerance;
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struct gasmix gas;
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if (!dive)
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return 0.0;
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if (*cached_datap) {
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tissue_tolerance = restore_deco_state(*cached_datap);
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} else {
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tissue_tolerance = init_decompression(dive);
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cache_deco_state(tissue_tolerance, cached_datap);
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}
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dc = &dive->dc;
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if (!dc->samples)
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return tissue_tolerance;
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psample = sample = dc->sample;
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for (i = 0; i < dc->samples; i++, sample++) {
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t1 = sample->time;
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get_gas_at_time(dive, dc, t0, &gas);
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if (i > 0)
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lastdepth = psample->depth;
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tissue_tolerance = interpolate_transition(dive, t0, t1, lastdepth, sample->depth, &gas, sample->setpoint);
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psample = sample;
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t0 = t1;
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}
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return tissue_tolerance;
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}
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/* if a default cylinder is set, use that */
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void fill_default_cylinder(cylinder_t *cyl)
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{
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const char *cyl_name = prefs.default_cylinder;
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struct tank_info_t *ti = tank_info;
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pressure_t pO2 = {.mbar = 1600};
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if (!cyl_name)
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return;
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while (ti->name != NULL) {
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if (strcmp(ti->name, cyl_name) == 0)
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break;
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ti++;
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}
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if (ti->name == NULL)
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/* didn't find it */
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return;
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cyl->type.description = strdup(ti->name);
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if (ti->ml) {
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cyl->type.size.mliter = ti->ml;
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cyl->type.workingpressure.mbar = ti->bar * 1000;
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} else {
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cyl->type.workingpressure.mbar = psi_to_mbar(ti->psi);
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if (ti->psi)
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cyl->type.size.mliter = cuft_to_l(ti->cuft) * 1000 / bar_to_atm(psi_to_bar(ti->psi));
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}
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// MOD of air
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cyl->depth = gas_mod(&cyl->gasmix, pO2, 1);
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}
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/* make sure that the gas we are switching to is represented in our
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* list of cylinders */
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static int verify_gas_exists(struct gasmix mix_in)
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{
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int i;
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cylinder_t *cyl;
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for (i = 0; i < MAX_CYLINDERS; i++) {
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cyl = displayed_dive.cylinder + i;
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if (cylinder_nodata(cyl))
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continue;
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if (gasmix_distance(&cyl->gasmix, &mix_in) < 100)
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return i;
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}
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fprintf(stderr, "this gas %s should have been on the cylinder list\nThings will fail now\n", gasname(&mix_in));
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return -1;
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}
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/* calculate the new end pressure of the cylinder, based on its current end pressure and the
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* latest segment. */
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static void update_cylinder_pressure(struct dive *d, int old_depth, int new_depth, int duration, int sac, cylinder_t *cyl, bool in_deco)
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{
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volume_t gas_used;
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pressure_t delta_p;
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depth_t mean_depth;
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int factor = 1000;
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if (d->dc.divemode == PSCR)
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factor = prefs.pscr_ratio;
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if (!cyl)
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return;
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mean_depth.mm = (old_depth + new_depth) / 2;
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gas_used.mliter = depth_to_atm(mean_depth.mm, d) * sac / 60 * duration * factor / 1000;
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cyl->gas_used.mliter += gas_used.mliter;
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if (in_deco)
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cyl->deco_gas_used.mliter += gas_used.mliter;
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if (cyl->type.size.mliter) {
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delta_p.mbar = gas_used.mliter * 1000.0 / cyl->type.size.mliter;
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cyl->end.mbar -= delta_p.mbar;
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}
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}
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/* simply overwrite the data in the displayed_dive
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* return false if something goes wrong */
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static void create_dive_from_plan(struct diveplan *diveplan, bool track_gas)
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{
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struct divedatapoint *dp;
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struct divecomputer *dc;
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struct sample *sample;
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struct gasmix oldgasmix;
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struct event *ev;
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cylinder_t *cyl;
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int oldpo2 = 0;
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int lasttime = 0;
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int lastdepth = 0;
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enum dive_comp_type type = displayed_dive.dc.divemode;
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if (!diveplan || !diveplan->dp)
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return;
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#if DEBUG_PLAN & 4
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printf("in create_dive_from_plan\n");
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dump_plan(diveplan);
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#endif
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displayed_dive.salinity = diveplan->salinity;
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// reset the cylinders and clear out the samples and events of the
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// displayed dive so we can restart
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reset_cylinders(&displayed_dive, track_gas);
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dc = &displayed_dive.dc;
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dc->when = displayed_dive.when = diveplan->when;
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free(dc->sample);
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dc->sample = NULL;
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dc->samples = 0;
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dc->alloc_samples = 0;
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while ((ev = dc->events)) {
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dc->events = dc->events->next;
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free(ev);
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}
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dp = diveplan->dp;
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cyl = &displayed_dive.cylinder[0];
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oldgasmix = cyl->gasmix;
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sample = prepare_sample(dc);
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sample->setpoint.mbar = dp->setpoint;
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sample->sac.mliter = prefs.bottomsac;
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oldpo2 = dp->setpoint;
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if (track_gas && cyl->type.workingpressure.mbar)
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sample->cylinderpressure.mbar = cyl->end.mbar;
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sample->manually_entered = true;
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finish_sample(dc);
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while (dp) {
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struct gasmix gasmix = dp->gasmix;
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int po2 = dp->setpoint;
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if (dp->setpoint)
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type = CCR;
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int time = dp->time;
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int depth = dp->depth;
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if (time == 0) {
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/* special entries that just inform the algorithm about
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* additional gases that are available */
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if (verify_gas_exists(gasmix) < 0)
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goto gas_error_exit;
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dp = dp->next;
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continue;
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}
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/* Check for SetPoint change */
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if (oldpo2 != po2) {
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/* this is a bad idea - we should get a different SAMPLE_EVENT type
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* reserved for this in libdivecomputer... overloading SMAPLE_EVENT_PO2
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* with a different meaning will only cause confusion elsewhere in the code */
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add_event(dc, lasttime, SAMPLE_EVENT_PO2, 0, po2, "SP change");
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oldpo2 = po2;
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}
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/* Make sure we have the new gas, and create a gas change event */
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if (gasmix_distance(&gasmix, &oldgasmix) > 0) {
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int idx;
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if ((idx = verify_gas_exists(gasmix)) < 0)
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goto gas_error_exit;
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/* need to insert a first sample for the new gas */
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add_gas_switch_event(&displayed_dive, dc, lasttime + 1, idx);
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cyl = &displayed_dive.cylinder[idx];
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sample = prepare_sample(dc);
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sample[-1].setpoint.mbar = po2;
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sample->time.seconds = lasttime + 1;
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sample->depth.mm = lastdepth;
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sample->manually_entered = dp->entered;
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sample->sac.mliter = dp->entered ? prefs.bottomsac : prefs.decosac;
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if (track_gas && cyl->type.workingpressure.mbar)
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sample->cylinderpressure.mbar = cyl->sample_end.mbar;
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finish_sample(dc);
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oldgasmix = gasmix;
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}
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/* Create sample */
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sample = prepare_sample(dc);
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/* set po2 at beginning of this segment */
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/* and keep it valid for last sample - where it likely doesn't matter */
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sample[-1].setpoint.mbar = po2;
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sample->setpoint.mbar = po2;
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sample->time.seconds = lasttime = time;
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sample->depth.mm = lastdepth = depth;
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sample->manually_entered = dp->entered;
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sample->sac.mliter = dp->entered ? prefs.bottomsac : prefs.decosac;
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if (track_gas && !sample[-1].setpoint.mbar) { /* Don't track gas usage for CCR legs of dive */
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update_cylinder_pressure(&displayed_dive, sample[-1].depth.mm, depth, time - sample[-1].time.seconds,
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dp->entered ? diveplan->bottomsac : diveplan->decosac, cyl, !dp->entered);
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if (cyl->type.workingpressure.mbar)
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sample->cylinderpressure.mbar = cyl->end.mbar;
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}
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finish_sample(dc);
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dp = dp->next;
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}
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dc->divemode = type;
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#if DEBUG_PLAN & 32
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save_dive(stdout, &displayed_dive);
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#endif
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return;
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gas_error_exit:
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report_error(translate("gettextFromC", "Too many gas mixes"));
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return;
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}
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void free_dps(struct diveplan *diveplan)
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{
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if (!diveplan)
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return;
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struct divedatapoint *dp = diveplan->dp;
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while (dp) {
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struct divedatapoint *ndp = dp->next;
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free(dp);
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dp = ndp;
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}
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diveplan->dp = NULL;
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}
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struct divedatapoint *create_dp(int time_incr, int depth, struct gasmix gasmix, int po2)
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{
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struct divedatapoint *dp;
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dp = malloc(sizeof(struct divedatapoint));
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dp->time = time_incr;
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dp->depth = depth;
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dp->gasmix = gasmix;
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dp->setpoint = po2;
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dp->entered = false;
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dp->next = NULL;
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return dp;
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}
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void add_to_end_of_diveplan(struct diveplan *diveplan, struct divedatapoint *dp)
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{
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struct divedatapoint **lastdp = &diveplan->dp;
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struct divedatapoint *ldp = *lastdp;
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int lasttime = 0;
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while (*lastdp) {
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ldp = *lastdp;
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if (ldp->time > lasttime)
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lasttime = ldp->time;
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lastdp = &(*lastdp)->next;
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}
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*lastdp = dp;
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if (ldp && dp->time != 0)
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dp->time += lasttime;
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}
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struct divedatapoint *plan_add_segment(struct diveplan *diveplan, int duration, int depth, struct gasmix gasmix, int po2, bool entered)
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{
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struct divedatapoint *dp = create_dp(duration, depth, gasmix, po2);
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dp->entered = entered;
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add_to_end_of_diveplan(diveplan, dp);
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return (dp);
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}
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struct gaschanges {
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int depth;
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int gasidx;
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};
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static struct gaschanges *analyze_gaslist(struct diveplan *diveplan, int *gaschangenr, int depth, int *asc_cylinder)
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{
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struct gasmix gas;
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int nr = 0;
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struct gaschanges *gaschanges = NULL;
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struct divedatapoint *dp = diveplan->dp;
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int best_depth = displayed_dive.cylinder[*asc_cylinder].depth.mm;
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while (dp) {
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if (dp->time == 0) {
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gas = dp->gasmix;
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if (dp->depth <= depth) {
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int i = 0;
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nr++;
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gaschanges = realloc(gaschanges, nr * sizeof(struct gaschanges));
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while (i < nr - 1) {
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if (dp->depth < gaschanges[i].depth) {
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memmove(gaschanges + i + 1, gaschanges + i, (nr - i - 1) * sizeof(struct gaschanges));
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break;
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}
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i++;
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}
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gaschanges[i].depth = dp->depth;
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gaschanges[i].gasidx = get_gasidx(&displayed_dive, &gas);
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assert(gaschanges[i].gasidx != -1);
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} else {
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/* is there a better mix to start deco? */
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if (dp->depth < best_depth) {
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best_depth = dp->depth;
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*asc_cylinder = get_gasidx(&displayed_dive, &gas);
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}
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}
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}
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dp = dp->next;
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}
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*gaschangenr = nr;
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#if DEBUG_PLAN & 16
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for (nr = 0; nr < *gaschangenr; nr++) {
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int idx = gaschanges[nr].gasidx;
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printf("gaschange nr %d: @ %5.2lfm gasidx %d (%s)\n", nr, gaschanges[nr].depth / 1000.0,
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idx, gasname(&displayed_dive.cylinder[idx].gasmix));
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}
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#endif
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return gaschanges;
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}
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/* sort all the stops into one ordered list */
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static unsigned int *sort_stops(int *dstops, int dnr, struct gaschanges *gstops, int gnr)
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{
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int i, gi, di;
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int total = dnr + gnr;
|
|
unsigned int *stoplevels = malloc(total * sizeof(int));
|
|
|
|
/* no gaschanges */
|
|
if (gnr == 0) {
|
|
memcpy(stoplevels, dstops, dnr * sizeof(int));
|
|
return stoplevels;
|
|
}
|
|
i = total - 1;
|
|
gi = gnr - 1;
|
|
di = dnr - 1;
|
|
while (i >= 0) {
|
|
if (dstops[di] > gstops[gi].depth) {
|
|
stoplevels[i] = dstops[di];
|
|
di--;
|
|
} else if (dstops[di] == gstops[gi].depth) {
|
|
stoplevels[i] = dstops[di];
|
|
di--;
|
|
gi--;
|
|
} else {
|
|
stoplevels[i] = gstops[gi].depth;
|
|
gi--;
|
|
}
|
|
i--;
|
|
if (di < 0) {
|
|
while (gi >= 0)
|
|
stoplevels[i--] = gstops[gi--].depth;
|
|
break;
|
|
}
|
|
if (gi < 0) {
|
|
while (di >= 0)
|
|
stoplevels[i--] = dstops[di--];
|
|
break;
|
|
}
|
|
}
|
|
while (i >= 0)
|
|
stoplevels[i--] = 0;
|
|
|
|
#if DEBUG_PLAN & 16
|
|
int k;
|
|
for (k = gnr + dnr - 1; k >= 0; k--) {
|
|
printf("stoplevel[%d]: %5.2lfm\n", k, stoplevels[k] / 1000.0);
|
|
if (stoplevels[k] == 0)
|
|
break;
|
|
}
|
|
#endif
|
|
return stoplevels;
|
|
}
|
|
|
|
static void add_plan_to_notes(struct diveplan *diveplan, struct dive *dive, bool show_disclaimer, int error)
|
|
{
|
|
char buffer[2000000], temp[100000];
|
|
int len, lastdepth = 0, lasttime = 0, lastsetpoint = -1, newdepth = 0, lastprintdepth = 0, lastprintsetpoint = -1;
|
|
struct gasmix lastprintgasmix = { -1, -1 };
|
|
struct divedatapoint *dp = diveplan->dp;
|
|
bool gaschange_after = !plan_verbatim;
|
|
bool gaschange_before;
|
|
struct divedatapoint *nextdp = NULL;
|
|
|
|
plan_verbatim = prefs.verbatim_plan;
|
|
plan_display_runtime = prefs.display_runtime;
|
|
plan_display_duration = prefs.display_duration;
|
|
plan_display_transitions = prefs.display_transitions;
|
|
|
|
disclaimer = translate("gettextFromC", "DISCLAIMER / WARNING: THIS IS A NEW IMPLEMENTATION OF THE BUHLMANN "
|
|
"ALGORITHM AND A DIVE PLANNER IMPLEMENTATION BASED ON THAT WHICH HAS "
|
|
"RECEIVED ONLY A LIMITED AMOUNT OF TESTING. WE STRONGLY RECOMMEND NOT TO "
|
|
"PLAN DIVES SIMPLY BASED ON THE RESULTS GIVEN HERE.");
|
|
|
|
if (!dp)
|
|
return;
|
|
|
|
if (error) {
|
|
snprintf(temp, sizeof(temp), "%s",
|
|
translate("gettextFromC", "Decompression calculation aborted due to excessive time"));
|
|
snprintf(buffer, sizeof(buffer), "<span style='color: red;'>%s </span> %s<br>",
|
|
translate("gettextFromC", "Warning:"), temp);
|
|
dive->notes = strdup(buffer);
|
|
return;
|
|
}
|
|
|
|
len = show_disclaimer ? snprintf(buffer, sizeof(buffer), "<div><b>%s<b></div><br>", disclaimer) : 0;
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "based on GFlow = %d and GFhigh = %d"),
|
|
diveplan->gflow, diveplan->gfhigh);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<div><b>%s</b><br>%s</div><br>",
|
|
translate("gettextFromC", "Subsurface dive plan"), temp);
|
|
|
|
if (!plan_verbatim) {
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<div><table><thead><tr><th>%s</th>",
|
|
translate("gettextFromC", "depth"));
|
|
if (plan_display_duration)
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<th style='padding-left: 10px;'>%s</th>",
|
|
translate("gettextFromC", "duration"));
|
|
if (plan_display_runtime)
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<th style='padding-left: 10px;'>%s</th>",
|
|
translate("gettextFromC", "runtime"));
|
|
len += snprintf(buffer + len, sizeof(buffer) - len,
|
|
"<th style='padding-left: 10px; float: left;'>%s</th></tr></thead><tbody style='float: left;'>",
|
|
translate("gettextFromC", "gas"));
|
|
}
|
|
do {
|
|
struct gasmix gasmix, newgasmix = {};
|
|
const char *depth_unit;
|
|
double depthvalue;
|
|
int decimals;
|
|
bool isascent = (dp->depth < lastdepth);
|
|
|
|
nextdp = dp->next;
|
|
if (dp->time == 0)
|
|
continue;
|
|
gasmix = dp->gasmix;
|
|
depthvalue = get_depth_units(dp->depth, &decimals, &depth_unit);
|
|
/* analyze the dive points ahead */
|
|
while (nextdp && nextdp->time == 0)
|
|
nextdp = nextdp->next;
|
|
if (nextdp)
|
|
newgasmix = nextdp->gasmix;
|
|
gaschange_after = (nextdp && (gasmix_distance(&gasmix, &newgasmix) || dp->setpoint != nextdp->setpoint));
|
|
gaschange_before = (gasmix_distance(&lastprintgasmix, &gasmix) || lastprintsetpoint != dp->setpoint);
|
|
/* do we want to skip this leg as it is devoid of anything useful? */
|
|
if (!dp->entered &&
|
|
nextdp &&
|
|
dp->depth != lastdepth &&
|
|
nextdp->depth != dp->depth &&
|
|
!gaschange_before &&
|
|
!gaschange_after)
|
|
continue;
|
|
if (dp->time - lasttime < 10 && !(gaschange_after && dp->next && dp->depth != dp->next->depth))
|
|
continue;
|
|
|
|
len = strlen(buffer);
|
|
if (plan_verbatim) {
|
|
if (dp->depth != lastprintdepth) {
|
|
if (plan_display_transitions || dp->entered || !dp->next || (gaschange_after && dp->next && dp->depth != nextdp->depth)) {
|
|
if (dp->setpoint)
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Transition to %.*f %s in %d:%02d min - runtime %d:%02u on %s (SP = %.1fbar)"),
|
|
decimals, depthvalue, depth_unit,
|
|
FRACTION(dp->time - lasttime, 60),
|
|
FRACTION(dp->time, 60),
|
|
gasname(&gasmix),
|
|
(double) dp->setpoint / 1000.0);
|
|
|
|
else
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Transition to %.*f %s in %d:%02d min - runtime %d:%02u on %s"),
|
|
decimals, depthvalue, depth_unit,
|
|
FRACTION(dp->time - lasttime, 60),
|
|
FRACTION(dp->time, 60),
|
|
gasname(&gasmix));
|
|
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "%s<br>", temp);
|
|
}
|
|
newdepth = dp->depth;
|
|
lasttime = dp->time;
|
|
} else {
|
|
if ((nextdp && dp->depth != nextdp->depth) || gaschange_after) {
|
|
if (dp->setpoint)
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Stay at %.*f %s for %d:%02d min - runtime %d:%02u on %s (SP = %.1fbar)"),
|
|
decimals, depthvalue, depth_unit,
|
|
FRACTION(dp->time - lasttime, 60),
|
|
FRACTION(dp->time, 60),
|
|
gasname(&gasmix),
|
|
(double) dp->setpoint / 1000.0);
|
|
else
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Stay at %.*f %s for %d:%02d min - runtime %d:%02u on %s"),
|
|
decimals, depthvalue, depth_unit,
|
|
FRACTION(dp->time - lasttime, 60),
|
|
FRACTION(dp->time, 60),
|
|
gasname(&gasmix));
|
|
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "%s<br>", temp);
|
|
newdepth = dp->depth;
|
|
lasttime = dp->time;
|
|
}
|
|
}
|
|
} else {
|
|
if (plan_display_transitions || dp->entered || !dp->next || (nextdp && dp->depth != nextdp->depth) ||
|
|
!isascent && gaschange_before && ((nextdp && dp->depth != nextdp->depth) || gaschange_after) ||
|
|
(isascent && gaschange_after && nextdp && dp->depth != nextdp->depth )) {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "%3.0f%s"), depthvalue, depth_unit);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<tr><td style='padding-left: 10px; float: right;'>%s</td>", temp);
|
|
if (plan_display_duration) {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "%3dmin"), (dp->time - lasttime + 30) / 60);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; float: right;'>%s</td>", temp);
|
|
}
|
|
if (plan_display_runtime) {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "%3dmin"), (dp->time + 30) / 60);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; float: right;'>%s</td>", temp);
|
|
}
|
|
|
|
if (isascent && gaschange_after && dp->next && nextdp && dp->depth != nextdp->depth) {
|
|
if (dp->setpoint) {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "(SP = %.1fbar)"), (double) nextdp->setpoint / 1000.0);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>", gasname(&newgasmix),
|
|
temp);
|
|
} else {
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; color: red; float: left;'><b>%s</b></td>", gasname(&newgasmix));
|
|
}
|
|
lastprintsetpoint = nextdp->setpoint;
|
|
lastprintgasmix = newgasmix;
|
|
gaschange_after = false;
|
|
} else if (gaschange_before) {
|
|
if (dp->setpoint) {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "(SP = %.1fbar)"), (double) dp->setpoint / 1000.0);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; color: red; float: left;'><b>%s %s</b></td>", gasname(&gasmix),
|
|
temp);
|
|
} else {
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td style='padding-left: 10px; color: red; float: left;'><b>%s</b></td>", gasname(&gasmix));
|
|
}
|
|
lastprintsetpoint = dp->setpoint;
|
|
lastprintgasmix = gasmix;
|
|
gaschange_after = false;
|
|
} else {
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<td> </td>");
|
|
}
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "</tr>");
|
|
newdepth = dp->depth;
|
|
lasttime = dp->time;
|
|
}
|
|
}
|
|
if (gaschange_after) {
|
|
// gas switch at this waypoint
|
|
if (plan_verbatim) {
|
|
if (lastsetpoint >= 0) {
|
|
if (nextdp && nextdp->setpoint)
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Switch gas to %s (SP = %.1fbar)"), gasname(&newgasmix), (double) nextdp->setpoint / 1000.0);
|
|
else
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "Switch gas to %s"), gasname(&newgasmix));
|
|
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "%s<br>", temp);
|
|
}
|
|
gaschange_after = false;
|
|
gasmix = newgasmix;
|
|
}
|
|
}
|
|
lastprintdepth = newdepth;
|
|
lastdepth = dp->depth;
|
|
lastsetpoint = dp->setpoint;
|
|
} while ((dp = nextdp) != NULL);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "</tbody></table></div>");
|
|
|
|
dive->cns = 0;
|
|
dive->maxcns = 0;
|
|
update_cylinder_related_info(dive);
|
|
snprintf(temp, sizeof(temp), "%s", translate("gettextFromC", "CNS"));
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<div><br>%s: %i%%", temp, dive->cns);
|
|
snprintf(temp, sizeof(temp), "%s", translate("gettextFromC", "OTU"));
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<br>%s: %i</div>", temp, dive->otu);
|
|
|
|
if (dive->dc.divemode == CCR)
|
|
snprintf(temp, sizeof(temp), "%s", translate("gettextFromC", "Gas consumption (CCR legs excluded):"));
|
|
else
|
|
snprintf(temp, sizeof(temp), "%s", translate("gettextFromC", "Gas consumption:"));
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<div><br>%s<br>", temp);
|
|
for (int gasidx = 0; gasidx < MAX_CYLINDERS; gasidx++) {
|
|
double volume, pressure, deco_volume, deco_pressure;
|
|
const char *unit, *pressure_unit;
|
|
char warning[1000] = "";
|
|
cylinder_t *cyl = &dive->cylinder[gasidx];
|
|
if (cylinder_none(cyl))
|
|
break;
|
|
|
|
volume = get_volume_units(cyl->gas_used.mliter, NULL, &unit);
|
|
deco_volume = get_volume_units(cyl->deco_gas_used.mliter, NULL, &unit);
|
|
if (cyl->type.size.mliter) {
|
|
deco_pressure = get_pressure_units(1000.0 * cyl->deco_gas_used.mliter / cyl->type.size.mliter, &pressure_unit);
|
|
pressure = get_pressure_units(1000.0 * cyl->gas_used.mliter / cyl->type.size.mliter, &pressure_unit);
|
|
/* Warn if the plan uses more gas than is available in a cylinder
|
|
* This only works if we have working pressure for the cylinder
|
|
* 10bar is a made up number - but it seemed silly to pretend you could breathe cylinder down to 0 */
|
|
if (cyl->end.mbar < 10000)
|
|
snprintf(warning, sizeof(warning), " — <span style='color: red;'>%s </span> %s",
|
|
translate("gettextFromC", "Warning:"),
|
|
translate("gettextFromC", "this is more gas than available in the specified cylinder!"));
|
|
else
|
|
if ((float) cyl->end.mbar * cyl->type.size.mliter / 1000.0 < (float) cyl->deco_gas_used.mliter)
|
|
snprintf(warning, sizeof(warning), " — <span style='color: red;'>%s </span> %s",
|
|
translate("gettextFromC", "Warning:"),
|
|
translate("gettextFromC", "not enough reserve for gas sharing on ascent!"));
|
|
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "%.0f%s/%.0f%s of %s (%.0f%s/%.0f%s in planned ascent)"), volume, unit, pressure, pressure_unit, gasname(&cyl->gasmix), deco_volume, unit, deco_pressure, pressure_unit);
|
|
} else {
|
|
snprintf(temp, sizeof(temp), translate("gettextFromC", "%.0f%s (%.0f%s during planned ascent) of %s"), volume, unit, deco_volume, unit, gasname(&cyl->gasmix));
|
|
}
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "%s%s<br>", temp, warning);
|
|
}
|
|
dp = diveplan->dp;
|
|
if (dive->dc.divemode != CCR) {
|
|
while (dp) {
|
|
if (dp->time != 0) {
|
|
struct gas_pressures pressures;
|
|
fill_pressures(&pressures, depth_to_atm(dp->depth, dive), &dp->gasmix, 0.0, dive->dc.divemode);
|
|
|
|
if (pressures.o2 > (dp->entered ? prefs.bottompo2 : prefs.decopo2) / 1000.0) {
|
|
const char *depth_unit;
|
|
int decimals;
|
|
double depth_value = get_depth_units(dp->depth, &decimals, &depth_unit);
|
|
len = strlen(buffer);
|
|
snprintf(temp, sizeof(temp),
|
|
translate("gettextFromC", "high pO₂ value %.2f at %d:%02u with gas %s at depth %.*f %s"),
|
|
pressures.o2, FRACTION(dp->time, 60), gasname(&dp->gasmix), decimals, depth_value, depth_unit);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<span style='color: red;'>%s </span> %s<br>",
|
|
translate("gettextFromC", "Warning:"), temp);
|
|
} else if (pressures.o2 < 0.16) {
|
|
const char *depth_unit;
|
|
int decimals;
|
|
double depth_value = get_depth_units(dp->depth, &decimals, &depth_unit);
|
|
len = strlen(buffer);
|
|
snprintf(temp, sizeof(temp),
|
|
translate("gettextFromC", "low pO₂ value %.2f at %d:%02u with gas %s at depth %.*f %s"),
|
|
pressures.o2, FRACTION(dp->time, 60), gasname(&dp->gasmix), decimals, depth_value, depth_unit);
|
|
len += snprintf(buffer + len, sizeof(buffer) - len, "<span style='color: red;'>%s </span> %s<br>",
|
|
translate("gettextFromC", "Warning:"), temp);
|
|
|
|
}
|
|
}
|
|
dp = dp->next;
|
|
}
|
|
}
|
|
snprintf(buffer + len, sizeof(buffer) - len, "</div>");
|
|
dive->notes = strdup(buffer);
|
|
}
|
|
|
|
int ascent_velocity(int depth, int avg_depth, int bottom_time)
|
|
{
|
|
/* We need to make this configurable */
|
|
|
|
/* As an example (and possibly reasonable default) this is the Tech 1 provedure according
|
|
* to http://www.globalunderwaterexplorers.org/files/Standards_and_Procedures/SOP_Manual_Ver2.0.2.pdf */
|
|
|
|
if (depth * 4 > avg_depth * 3) {
|
|
return prefs.ascrate75;
|
|
} else {
|
|
if (depth * 2 > avg_depth) {
|
|
return prefs.ascrate50;
|
|
} else {
|
|
if (depth > 6000)
|
|
return prefs.ascratestops;
|
|
else
|
|
return prefs.ascratelast6m;
|
|
}
|
|
}
|
|
}
|
|
|
|
void track_ascent_gas(int depth, cylinder_t *cylinder, int avg_depth, int bottom_time, bool safety_stop)
|
|
{
|
|
while (depth > 0) {
|
|
int deltad = ascent_velocity(depth, avg_depth, bottom_time) * TIMESTEP;
|
|
if (deltad > depth)
|
|
deltad = depth;
|
|
update_cylinder_pressure(&displayed_dive, depth, depth - deltad, TIMESTEP, prefs.decosac, cylinder, true);
|
|
if (depth <= 5000 && depth >= (5000 - deltad) && safety_stop) {
|
|
update_cylinder_pressure(&displayed_dive, 5000, 5000, 180, prefs.decosac, cylinder, true);
|
|
safety_stop = false;
|
|
}
|
|
depth -= deltad;
|
|
}
|
|
}
|
|
|
|
bool trial_ascent(int trial_depth, int stoplevel, int avg_depth, int bottom_time, double tissue_tolerance, struct gasmix *gasmix, int po2, double surface_pressure)
|
|
{
|
|
|
|
bool clear_to_ascend = true;
|
|
char *trial_cache = NULL;
|
|
|
|
cache_deco_state(tissue_tolerance, &trial_cache);
|
|
while (trial_depth > stoplevel) {
|
|
int deltad = ascent_velocity(trial_depth, avg_depth, bottom_time) * TIMESTEP;
|
|
if (deltad > trial_depth) /* don't test against depth above surface */
|
|
deltad = trial_depth;
|
|
tissue_tolerance = add_segment(depth_to_mbar(trial_depth, &displayed_dive) / 1000.0,
|
|
gasmix,
|
|
TIMESTEP, po2, &displayed_dive, prefs.decosac);
|
|
if (prefs.deco_mode != VPMB && deco_allowed_depth(tissue_tolerance, surface_pressure, &displayed_dive, 1) > trial_depth - deltad) {
|
|
/* We should have stopped */
|
|
clear_to_ascend = false;
|
|
break;
|
|
}
|
|
if (prefs.deco_mode == VPMB && (!is_vpmb_ok(depth_to_mbar(trial_depth, &displayed_dive) / 1000.0))){
|
|
clear_to_ascend = false;
|
|
break;
|
|
}
|
|
trial_depth -= deltad;
|
|
}
|
|
restore_deco_state(trial_cache);
|
|
free(trial_cache);
|
|
return clear_to_ascend;
|
|
}
|
|
|
|
bool enough_gas(int current_cylinder)
|
|
{
|
|
cylinder_t *cyl;
|
|
cyl = &displayed_dive.cylinder[current_cylinder];
|
|
|
|
if (!cyl->start.mbar)
|
|
return true;
|
|
if (cyl->type.size.mliter)
|
|
return (float) (cyl->end.mbar - prefs.reserve_gas) * cyl->type.size.mliter / 1000.0 > (float) cyl->deco_gas_used.mliter;
|
|
else
|
|
return true;
|
|
}
|
|
|
|
// Work out the stops. Return value is if there were any mandatory stops.
|
|
|
|
bool plan(struct diveplan *diveplan, char **cached_datap, bool is_planner, bool show_disclaimer)
|
|
{
|
|
int bottom_depth;
|
|
int bottom_gi;
|
|
int bottom_stopidx;
|
|
bool is_final_plan = true;
|
|
int deco_time;
|
|
int previous_deco_time;
|
|
char *bottom_cache = NULL;
|
|
struct sample *sample;
|
|
int po2;
|
|
int transitiontime, gi;
|
|
int current_cylinder;
|
|
unsigned int stopidx;
|
|
int depth;
|
|
double tissue_tolerance = 0.0;
|
|
struct gaschanges *gaschanges = NULL;
|
|
int gaschangenr;
|
|
unsigned int *stoplevels = NULL;
|
|
bool stopping = false;
|
|
bool pendinggaschange = false;
|
|
bool clear_to_ascend;
|
|
int clock, previous_point_time;
|
|
int avg_depth, max_depth, bottom_time = 0;
|
|
int last_ascend_rate;
|
|
int best_first_ascend_cylinder;
|
|
struct gasmix gas, bottom_gas;
|
|
int o2time = 0;
|
|
int breaktime = -1;
|
|
int breakcylinder = 0;
|
|
int error = 0;
|
|
bool decodive = false;
|
|
|
|
set_gf(diveplan->gflow, diveplan->gfhigh, prefs.gf_low_at_maxdepth);
|
|
if (!diveplan->surface_pressure)
|
|
diveplan->surface_pressure = SURFACE_PRESSURE;
|
|
create_dive_from_plan(diveplan, is_planner);
|
|
|
|
if (prefs.units.length == METERS ) {
|
|
memcpy(decostoplevels, decostoplevels_metric, sizeof(decostoplevels_metric));
|
|
} else {
|
|
memcpy(decostoplevels, decostoplevels_imperial, sizeof(decostoplevels_imperial));
|
|
}
|
|
|
|
if (prefs.last_stop)
|
|
decostoplevels[1] = M_OR_FT(6,20);
|
|
|
|
/* Let's start at the last 'sample', i.e. the last manually entered waypoint. */
|
|
sample = &displayed_dive.dc.sample[displayed_dive.dc.samples - 1];
|
|
|
|
get_gas_at_time(&displayed_dive, &displayed_dive.dc, sample->time, &gas);
|
|
|
|
po2 = sample->setpoint.mbar;
|
|
if ((current_cylinder = get_gasidx(&displayed_dive, &gas)) == -1) {
|
|
report_error(translate("gettextFromC", "Can't find gas %s"), gasname(&gas));
|
|
current_cylinder = 0;
|
|
}
|
|
depth = displayed_dive.dc.sample[displayed_dive.dc.samples - 1].depth.mm;
|
|
average_max_depth(diveplan, &avg_depth, &max_depth);
|
|
last_ascend_rate = ascent_velocity(depth, avg_depth, bottom_time);
|
|
|
|
/* if all we wanted was the dive just get us back to the surface */
|
|
if (!is_planner) {
|
|
transitiontime = depth / 75; /* this still needs to be made configurable */
|
|
plan_add_segment(diveplan, transitiontime, 0, gas, po2, false);
|
|
create_dive_from_plan(diveplan, is_planner);
|
|
return(false);
|
|
}
|
|
tissue_tolerance = tissue_at_end(&displayed_dive, cached_datap);
|
|
|
|
#if DEBUG_PLAN & 4
|
|
printf("gas %s\n", gasname(&gas));
|
|
printf("depth %5.2lfm \n", depth / 1000.0);
|
|
#endif
|
|
|
|
best_first_ascend_cylinder = current_cylinder;
|
|
/* Find the gases available for deco */
|
|
|
|
if (po2) { // Don't change gas in CCR mode
|
|
gaschanges = NULL;
|
|
gaschangenr = 0;
|
|
} else {
|
|
gaschanges = analyze_gaslist(diveplan, &gaschangenr, depth, &best_first_ascend_cylinder);
|
|
}
|
|
/* Find the first potential decostopdepth above current depth */
|
|
for (stopidx = 0; stopidx < sizeof(decostoplevels) / sizeof(int); stopidx++)
|
|
if (decostoplevels[stopidx] >= depth)
|
|
break;
|
|
if (stopidx > 0)
|
|
stopidx--;
|
|
/* Stoplevels are either depths of gas changes or potential deco stop depths. */
|
|
stoplevels = sort_stops(decostoplevels, stopidx + 1, gaschanges, gaschangenr);
|
|
stopidx += gaschangenr;
|
|
|
|
/* Keep time during the ascend */
|
|
bottom_time = clock = previous_point_time = displayed_dive.dc.sample[displayed_dive.dc.samples - 1].time.seconds;
|
|
gi = gaschangenr - 1;
|
|
|
|
if(prefs.deco_mode == RECREATIONAL) {
|
|
bool safety_stop = prefs.safetystop && max_depth >= 10000;
|
|
track_ascent_gas(depth, &displayed_dive.cylinder[current_cylinder], avg_depth, bottom_time, safety_stop);
|
|
// How long can we stay at the current depth and still directly ascent to the surface?
|
|
while (trial_ascent(depth, 0, avg_depth, bottom_time, tissue_tolerance, &displayed_dive.cylinder[current_cylinder].gasmix,
|
|
po2, diveplan->surface_pressure / 1000.0) &&
|
|
enough_gas(current_cylinder)) {
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
DECOTIMESTEP, po2, &displayed_dive, prefs.bottomsac);
|
|
update_cylinder_pressure(&displayed_dive, depth, depth, DECOTIMESTEP, prefs.bottomsac, &displayed_dive.cylinder[current_cylinder], false);
|
|
clock += DECOTIMESTEP;
|
|
}
|
|
clock -= DECOTIMESTEP;
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, true);
|
|
previous_point_time = clock;
|
|
do {
|
|
/* Ascend to surface */
|
|
int deltad = ascent_velocity(depth, avg_depth, bottom_time) * TIMESTEP;
|
|
if (ascent_velocity(depth, avg_depth, bottom_time) != last_ascend_rate) {
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
last_ascend_rate = ascent_velocity(depth, avg_depth, bottom_time);
|
|
}
|
|
if (depth - deltad < 0)
|
|
deltad = depth;
|
|
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
TIMESTEP, po2, &displayed_dive, prefs.decosac);
|
|
clock += TIMESTEP;
|
|
depth -= deltad;
|
|
if (depth <= 5000 && depth >= (5000 - deltad) && safety_stop) {
|
|
plan_add_segment(diveplan, clock - previous_point_time, 5000, gas, po2, false);
|
|
previous_point_time = clock;
|
|
clock += 180;
|
|
plan_add_segment(diveplan, clock - previous_point_time, 5000, gas, po2, false);
|
|
previous_point_time = clock;
|
|
safety_stop = false;
|
|
}
|
|
} while (depth > 0);
|
|
plan_add_segment(diveplan, clock - previous_point_time, 0, gas, po2, false);
|
|
create_dive_from_plan(diveplan, is_planner);
|
|
add_plan_to_notes(diveplan, &displayed_dive, show_disclaimer, error);
|
|
fixup_dc_duration(&displayed_dive.dc);
|
|
|
|
free(stoplevels);
|
|
free(gaschanges);
|
|
return(false);
|
|
}
|
|
|
|
if (best_first_ascend_cylinder != current_cylinder) {
|
|
stopping = true;
|
|
|
|
current_cylinder = best_first_ascend_cylinder;
|
|
gas = displayed_dive.cylinder[current_cylinder].gasmix;
|
|
|
|
#if DEBUG_PLAN & 16
|
|
printf("switch to gas %d (%d/%d) @ %5.2lfm\n", best_first_ascend_cylinder,
|
|
(get_o2(&gas) + 5) / 10, (get_he(&gas) + 5) / 10, gaschanges[best_first_ascend_cylinder].depth / 1000.0);
|
|
#endif
|
|
}
|
|
|
|
// VPM-B or Buehlmann Deco
|
|
nuclear_regeneration(clock);
|
|
vpmb_start_gradient();
|
|
previous_deco_time = 100000000;
|
|
deco_time = 10000000;
|
|
cache_deco_state(tissue_tolerance, &bottom_cache); // Lets us make several iterations
|
|
bottom_depth = depth;
|
|
bottom_gi = gi;
|
|
bottom_gas = gas;
|
|
bottom_stopidx = stopidx;
|
|
//CVA
|
|
do {
|
|
is_final_plan = (prefs.deco_mode == BUEHLMANN) || (previous_deco_time - deco_time < 10); // CVA time converges
|
|
previous_deco_time = deco_time;
|
|
restore_deco_state(bottom_cache);
|
|
|
|
depth = bottom_depth;
|
|
gi = bottom_gi;
|
|
clock = previous_point_time = bottom_time;
|
|
gas = bottom_gas;
|
|
stopping = false;
|
|
decodive = false;
|
|
stopidx = bottom_stopidx;
|
|
breaktime = -1;
|
|
breakcylinder = 0;
|
|
o2time = 0;
|
|
last_ascend_rate = ascent_velocity(depth, avg_depth, bottom_time);
|
|
if ((current_cylinder = get_gasidx(&displayed_dive, &gas)) == -1) {
|
|
report_error(translate("gettextFromC", "Can't find gas %s"), gasname(&gas));
|
|
current_cylinder = 0;
|
|
}
|
|
vpmb_next_gradient(deco_time);
|
|
|
|
while (1) {
|
|
/* We will break out when we hit the surface */
|
|
do {
|
|
/* Ascend to next stop depth */
|
|
int deltad = ascent_velocity(depth, avg_depth, bottom_time) * TIMESTEP;
|
|
if (ascent_velocity(depth, avg_depth, bottom_time) != last_ascend_rate) {
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
stopping = false;
|
|
last_ascend_rate = ascent_velocity(depth, avg_depth, bottom_time);
|
|
}
|
|
if (depth - deltad < stoplevels[stopidx])
|
|
deltad = depth - stoplevels[stopidx];
|
|
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
TIMESTEP, po2, &displayed_dive, prefs.decosac);
|
|
clock += TIMESTEP;
|
|
depth -= deltad;
|
|
} while (depth > 0 && depth > stoplevels[stopidx]);
|
|
|
|
if (depth <= 0)
|
|
break; /* We are at the surface */
|
|
|
|
if (gi >= 0 && stoplevels[stopidx] <= gaschanges[gi].depth) {
|
|
/* We have reached a gas change.
|
|
* Record this in the dive plan */
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
stopping = true;
|
|
|
|
/* Check we need to change cylinder.
|
|
* We might not if the cylinder was chosen by the user
|
|
* or user has selected only to switch only at required stops.
|
|
* If current gas is hypoxic, we want to switch asap */
|
|
if (current_cylinder != gaschanges[gi].gasidx) {
|
|
if (!prefs.switch_at_req_stop ||
|
|
!trial_ascent(depth, stoplevels[stopidx - 1], avg_depth, bottom_time, tissue_tolerance,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix, po2, diveplan->surface_pressure / 1000.0) || get_o2(&displayed_dive.cylinder[current_cylinder].gasmix) < 160) {
|
|
current_cylinder = gaschanges[gi].gasidx;
|
|
gas = displayed_dive.cylinder[current_cylinder].gasmix;
|
|
#if DEBUG_PLAN & 16
|
|
printf("switch to gas %d (%d/%d) @ %5.2lfm\n", gaschanges[gi].gasidx,
|
|
(get_o2(&gas) + 5) / 10, (get_he(&gas) + 5) / 10, gaschanges[gi].depth / 1000.0);
|
|
#endif
|
|
/* Stop for the minimum duration to switch gas */
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
prefs.min_switch_duration, po2, &displayed_dive, prefs.decosac);
|
|
clock += prefs.min_switch_duration;
|
|
} else {
|
|
pendinggaschange = true;
|
|
}
|
|
gi--;
|
|
}
|
|
}
|
|
--stopidx;
|
|
|
|
/* Save the current state and try to ascend to the next stopdepth */
|
|
while (1) {
|
|
/* Check if ascending to next stop is clear, go back and wait if we hit the ceiling on the way */
|
|
if (trial_ascent(depth, stoplevels[stopidx], avg_depth, bottom_time, tissue_tolerance,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix, po2, diveplan->surface_pressure / 1000.0))
|
|
break; /* We did not hit the ceiling */
|
|
|
|
/* Add a minute of deco time and then try again */
|
|
decodive = true;
|
|
if (!stopping) {
|
|
/* The last segment was an ascend segment.
|
|
* Add a waypoint for start of this deco stop */
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
stopping = true;
|
|
}
|
|
if (pendinggaschange) {
|
|
current_cylinder = gaschanges[gi + 1].gasidx;
|
|
gas = displayed_dive.cylinder[current_cylinder].gasmix;
|
|
#if DEBUG_PLAN & 16
|
|
printf("switch to gas %d (%d/%d) @ %5.2lfm\n", gaschanges[gi + 1].gasidx,
|
|
(get_o2(&gas) + 5) / 10, (get_he(&gas) + 5) / 10, gaschanges[gi + 1].depth / 1000.0);
|
|
#endif
|
|
/* Stop for the minimum duration to switch gas */
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
prefs.min_switch_duration, po2, &displayed_dive, prefs.decosac);
|
|
clock += prefs.min_switch_duration;
|
|
pendinggaschange = false;
|
|
}
|
|
|
|
/* Deco stop should end when runtime is at a whole minute */
|
|
int this_decotimestep;
|
|
this_decotimestep = DECOTIMESTEP - clock % DECOTIMESTEP;
|
|
|
|
tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
|
|
&displayed_dive.cylinder[current_cylinder].gasmix,
|
|
this_decotimestep, po2, &displayed_dive, prefs.decosac);
|
|
clock += this_decotimestep;
|
|
/* Finish infinite deco */
|
|
if(clock >= 48 * 3600 && depth >= 6000) {
|
|
error = LONGDECO;
|
|
break;
|
|
}
|
|
if (prefs.doo2breaks) {
|
|
if (get_o2(&displayed_dive.cylinder[current_cylinder].gasmix) == 1000) {
|
|
o2time += DECOTIMESTEP;
|
|
if (o2time >= 12 * 60) {
|
|
breaktime = 0;
|
|
breakcylinder = current_cylinder;
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
current_cylinder = 0;
|
|
gas = displayed_dive.cylinder[current_cylinder].gasmix;
|
|
}
|
|
} else {
|
|
if (breaktime >= 0) {
|
|
breaktime += DECOTIMESTEP;
|
|
if (breaktime >= 6 * 60) {
|
|
o2time = 0;
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
current_cylinder = breakcylinder;
|
|
gas = displayed_dive.cylinder[current_cylinder].gasmix;
|
|
breaktime = -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (stopping) {
|
|
/* Next we will ascend again. Add a waypoint if we have spend deco time */
|
|
if (is_final_plan)
|
|
plan_add_segment(diveplan, clock - previous_point_time, depth, gas, po2, false);
|
|
previous_point_time = clock;
|
|
stopping = false;
|
|
}
|
|
}
|
|
|
|
deco_time = clock - bottom_time;
|
|
} while (!is_final_plan);
|
|
|
|
plan_add_segment(diveplan, clock - previous_point_time, 0, gas, po2, false);
|
|
create_dive_from_plan(diveplan, is_planner);
|
|
add_plan_to_notes(diveplan, &displayed_dive, show_disclaimer, error);
|
|
fixup_dc_duration(&displayed_dive.dc);
|
|
|
|
free(stoplevels);
|
|
free(gaschanges);
|
|
return decodive;
|
|
}
|
|
|
|
/*
|
|
* Get a value in tenths (so "10.2" == 102, "9" = 90)
|
|
*
|
|
* Return negative for errors.
|
|
*/
|
|
static int get_tenths(const char *begin, const char **endp)
|
|
{
|
|
char *end;
|
|
int value = strtol(begin, &end, 10);
|
|
|
|
if (begin == end)
|
|
return -1;
|
|
value *= 10;
|
|
|
|
/* Fraction? We only look at the first digit */
|
|
if (*end == '.') {
|
|
end++;
|
|
if (!isdigit(*end))
|
|
return -1;
|
|
value += *end - '0';
|
|
do {
|
|
end++;
|
|
} while (isdigit(*end));
|
|
}
|
|
*endp = end;
|
|
return value;
|
|
}
|
|
|
|
static int get_permille(const char *begin, const char **end)
|
|
{
|
|
int value = get_tenths(begin, end);
|
|
if (value >= 0) {
|
|
/* Allow a percentage sign */
|
|
if (**end == '%')
|
|
++*end;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
int validate_gas(const char *text, struct gasmix *gas)
|
|
{
|
|
int o2, he;
|
|
|
|
if (!text)
|
|
return 0;
|
|
|
|
while (isspace(*text))
|
|
text++;
|
|
|
|
if (!*text)
|
|
return 0;
|
|
|
|
if (!strcasecmp(text, translate("gettextFromC", "air"))) {
|
|
o2 = O2_IN_AIR;
|
|
he = 0;
|
|
text += strlen(translate("gettextFromC", "air"));
|
|
} else if (!strcasecmp(text, translate("gettextFromC", "oxygen"))) {
|
|
o2 = 1000;
|
|
he = 0;
|
|
text += strlen(translate("gettextFromC", "oxygen"));
|
|
} else if (!strncasecmp(text, translate("gettextFromC", "ean"), 3)) {
|
|
o2 = get_permille(text + 3, &text);
|
|
he = 0;
|
|
} else {
|
|
o2 = get_permille(text, &text);
|
|
he = 0;
|
|
if (*text == '/')
|
|
he = get_permille(text + 1, &text);
|
|
}
|
|
|
|
/* We don't want any extra crud */
|
|
while (isspace(*text))
|
|
text++;
|
|
if (*text)
|
|
return 0;
|
|
|
|
/* Validate the gas mix */
|
|
if (*text || o2 < 1 || o2 > 1000 || he < 0 || o2 + he > 1000)
|
|
return 0;
|
|
|
|
/* Let it rip */
|
|
gas->o2.permille = o2;
|
|
gas->he.permille = he;
|
|
return 1;
|
|
}
|
|
|
|
int validate_po2(const char *text, int *mbar_po2)
|
|
{
|
|
int po2;
|
|
|
|
if (!text)
|
|
return 0;
|
|
|
|
po2 = get_tenths(text, &text);
|
|
if (po2 < 0)
|
|
return 0;
|
|
|
|
while (isspace(*text))
|
|
text++;
|
|
|
|
while (isspace(*text))
|
|
text++;
|
|
if (*text)
|
|
return 0;
|
|
|
|
*mbar_po2 = po2 * 100;
|
|
return 1;
|
|
}
|