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core: move best_o2() and best_he() to struct dive

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Feels natural in a C++ code base.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-06-30 21:38:32 +02:00 • committed by bstoeger
parent 6e349793d1
commit 28814829e0
3 changed files with 13 additions and 14 deletions
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10
core/dive.cpp
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@ -2342,12 +2342,12 @@ std::unique_ptr<dive> clone_make_first_dc(const struct dive &d, int dc_number)
}
//Calculate O2 in best mix
fraction_t best_o2(depth_t depth, const struct dive *dive, bool in_planner)
fraction_t dive::best_o2(depth_t depth, bool in_planner) const
{
fraction_t fo2;
int po2 = in_planner ? prefs.bottompo2 : (int)(prefs.modpO2 * 1000.0);
fo2.permille = (po2 * 100 / dive->depth_to_mbar(depth.mm)) * 10; //use integer arithmetic to round down to nearest percent
fo2.permille = (po2 * 100 / depth_to_mbar(depth.mm)) * 10; //use integer arithmetic to round down to nearest percent
// Don't permit >100% O2
if (fo2.permille > 1000)
fo2.permille = 1000;
@ -2355,12 +2355,12 @@ fraction_t best_o2(depth_t depth, const struct dive *dive, bool in_planner)
}
//Calculate He in best mix. O2 is considered narcopic
fraction_t best_he(depth_t depth, const struct dive *dive, bool o2narcotic, fraction_t fo2)
fraction_t dive::best_he(depth_t depth, bool o2narcotic, fraction_t fo2) const
{
fraction_t fhe;
int pnarcotic, ambient;
pnarcotic = dive->depth_to_mbar(prefs.bestmixend.mm);
ambient = dive->depth_to_mbar(depth.mm);
pnarcotic = depth_to_mbar(prefs.bestmixend.mm);
ambient = depth_to_mbar(depth.mm);
if (o2narcotic) {
fhe.permille = (100 - 100 * pnarcotic / ambient) * 10; //use integer arithmetic to round up to nearest percent
} else {

5
core/dive.h
View file

@ -125,6 +125,8 @@ struct dive {
pressure_t un_fixup_surface_pressure() const;
depth_t gas_mod(struct gasmix mix, pressure_t po2_limit, int roundto) const;
depth_t gas_mnd(struct gasmix mix, depth_t end, int roundto) const;
fraction_t best_o2(depth_t depth, bool in_planner) const;
fraction_t best_he(depth_t depth, bool o2narcotic, fraction_t fo2) const;
bool dive_has_gps_location() const;
location_t get_gps_location() const;
@ -162,9 +164,6 @@ struct dive_components {
unsigned int when : 1;
};
extern fraction_t best_o2(depth_t depth, const struct dive *dive, bool in_planner);
extern fraction_t best_he(depth_t depth, const struct dive *dive, bool o2narcotic, fraction_t fo2);
extern std::unique_ptr<dive> clone_make_first_dc(const struct dive &d, int dc_number);
extern bool time_during_dive_with_offset(const struct dive *dive, timestamp_t when, timestamp_t offset);