src/gas.c


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/* SPDX-License-Identifier: MIT-0 */

#include <assert.h>

#include "gas.h"

double PO2_MAX = PO2_MAX_DEFAULT;

gas_t gas_new(unsigned char o2, unsigned char he, double mod)
{
    assert(o2 + he <= 100);

    if (mod == MOD_AUTO)
        mod = PO2_MAX / (o2 / 100.0);

    return (gas_t){.o2 = o2, .he = he, .n2 = 100 - o2 - he, .mod = mod};
}

int gas_equal(const gas_t *g1, const gas_t *g2)
{
    return g1->o2 == g2->o2 && g1->he == g2->he && g1->mod == g2->mod;
}

unsigned char gas_o2(const gas_t *gas)
{
    return gas->o2;
}

unsigned char gas_he(const gas_t *gas)
{
    return gas->he;
}

unsigned char gas_n2(const gas_t *gas)
{
    return gas->n2;
}

double gas_mod(const gas_t *gas)
{
    return gas->mod;
}