Parrot.c

#include "Parrot.h"
#include <assert.h>
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#define MAX(x, y) (((x) > (y)) ? (x) : (y))

void init_parrot(Parrot* parrot, ParrotType type, int numberOfCoconuts, float voltage, bool isNailed)
{
    parrot->type = type;
    parrot->numberOfCoconuts = numberOfCoconuts;
    parrot->voltage = voltage;
    parrot->isNailed = isNailed;
}

float get_base_speed()
{
    return 12.0;
}

float get_load_factor()
{
    return 9.0;
}

float get_base_speed_with_voltage(float voltage)
{
    return MIN(24.0, voltage * get_base_speed());
}

float get_speed(Parrot* parrot)
{
    switch (parrot->type) {
    case EUROPEAN:
        return get_base_speed();
    case AFRICAN:
        return MAX(0.0, get_base_speed() - get_load_factor() * parrot->numberOfCoconuts);
    case NORWEGIAN_BLUE:
        return (parrot->isNailed) ? 0 : get_base_speed_with_voltage(parrot->voltage);
    default:
        /* Should be unreachable */
        assert(false);
        return -1;
    }
}