task 10

#include <stdio.h>

enum states {
    start_off,           //0
    on,                  //1
    espresso_ready,      //2
    steamer_ready,       //3
    make_espresso,       //4
    make_steam,          //5
};

enum signals {
    switch_off,           //0
    switch_on,            //1
    heat_up,              //2
    espresso_on,          //3
    espresso_off,         //4
    steam_on,             //5
    steam_off,            //6
    steam_knob_forward,   //7
    steam_knob_backward   //8
};

enum states Coffe_FSM[6][9] = {     //conversion table
        [start_off][switch_on]=on,

        [on][switch_off]=start_off,
        [on][heat_up]=espresso_ready,

        [espresso_ready][switch_off]=start_off,
        [espresso_ready][steam_on]=steamer_ready,
        [espresso_ready][espresso_on]=make_espresso,

        [steamer_ready][switch_off]=start_off,
        [steamer_ready][steam_off]=espresso_ready,
        [steamer_ready][steam_knob_forward]=make_steam,

        [make_steam][steam_knob_backward]=steamer_ready,

        [make_espresso][espresso_off]=espresso_ready

};

enum signals getSignal()
{
    enum signals signal;
    printf("Give me signal(if u choose undetermined signal for this state u will return on start state)\n");
    scanf("%d", &signal);
    return signal;

}

void doCoffe_FSM()
{
    enum states current_state = start_off;
    enum states new_state;

    printf("List of states\n");
    printf("0 - start_off\n");
    printf("1 - on\n");
    printf("2 - espresso_ready\n");
    printf("3 - steamer_ready\n");
    printf("4 - make_espresso(coffee ready)\n");
    printf("5 - make_steam(coffee ready)\n\n");

    printf("List of signals\n");
    printf("0 - switch_off\n");
    printf("1 - switch_on\n");
    printf("2 - heat_up\n");
    printf("3 - espresso_on\n");
    printf("4 - espresso_off\n");
    printf("5 - steam_on\n");
    printf("6 - steam_off\n");
    printf("7 - steam_knob_forward\n");
    printf("8 - steam_knob_backward\n\n");

    while (1)
    {
        enum signals current_signal = getSignal();

        new_state = Coffe_FSM[current_state][current_signal];
        printf("Current state = %d, signal = %d, new state = %d\n", current_state, current_signal, new_state);
        current_state = new_state;

        if(new_state==make_espresso || new_state==make_steam)
        {
            printf("\nCoffee ready! Enjoy");
            break;
        }
    }
}

int main() {

    doCoffe_FSM();
    return 0;
}