c – Text-adventure game cleanup


I’m working on a text adventure game for a while now, learning more about user input etc.
I have a feeling there is something fundamentally wrong about my code, it seems too repetitive.

The use of structs should make things less bulky but can’t figure out how to use it properly.

#include <stdio.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>

// FUNCTIONS
int readLine();
int execute();
void startUp();
void readLocation();
void executeOpen();
void executeOpenDoor();
void executeOpenFridge();
void executeReadSign();
void executeGo();

// LOCATIONS
struct location {
    const char *description;
    const char *name;
}
locs() = {
    {""},
    {"hallway", "hall"},
    {"kitchen", "kitchen"},
    {"living room", "living room"},
    {"toilet", "toilet room"},
    {"upstairs", "first floor"},
};
void loc_kitchen();
void loc_living();
void loc_hall();
void loc_toilet();
void loc_upstairs();

// INIT
int answer, location;
int bullets, key, gun = 0;
char* current_loc = "hall";
static char input(100);

// MAIN GAME
int main()
{    
    startUp(); // INTRO

    while (readLine() && execute()); // GAME LOOP

    return 0;
}


// FUNCTIONS
// COMMAND & READLINE
int readLine ()
{
    printf(">  ");
    return fgets(input, sizeof(input), stdin) != NULL;
}

int execute()
{
    char *verb = strtok(input, " n");
    char *noun = strtok(NULL, " n");

    if (verb != NULL)
    {        
        if (strcasecmp(verb, "open") == 0) 
        {
            executeOpenDoor(noun);
        }
        else if (strcasecmp(verb, "read") == 0) 
        {
            executeReadSign(noun);
        }
        else 
            printf("I don't know the word %s, try again.nn", verb);
    }
    return 1;
}

void executeOpenDoor(const char *noun)
{
    if (noun == NULL)
    {
        printf("What do you want to open?nn");
    }
    else if (strcasecmp(noun, "door") == 0)
    {        
        printf("You enter the mansion, seems like nobody's been here in years..n");
        printf("You now have access to the kitchen, toilet, living room & upstairs.nn");
        readLocation();
    }
    else
    {
        printf("I don't understand what you want to open.nn");
    }
}

void readLocation() 
{
    while (1)
    {
        readLine();

        char *verb = strtok(input, " n");
        char *noun = strtok(NULL, " n");

        if (strcasecmp(verb, "go") == 0)
        {
            executeGo(noun);
        }
        else
        {
            printf("I don't understand where you want to go.nn");
        }
    }
}

void executeOpenFridge(const char *noun)
{
    if (noun == NULL)
    {
        printf("What do you want to open?nn");
    }
    else if (strcasecmp(noun, "fridge") == 0)
    {        
        printf("Oh wish you didnt opened that. Whatever's in it, it's definitely out-of-date.nn");
    }
    else
    {
        printf("I don't know what you want to open.nn");
    }
}

void executeReadSign(const char *noun)
{
    if (noun == NULL)
    {
        printf("What do you want to read?nn");
    }
    else if (strcasecmp(noun, "sign") == 0)
    {
        printf(""Begone, leave the dead in peace!"nn");
    }
    else
    {
        printf("I don't know what you want to read.nn");
    }
}

void executeGo(const char *noun)
{    
    if (strcasecmp(noun, current_loc) == 0)
    {
        printf("You are already standing in the %s.nn", current_loc);
    }
    else if (noun == NULL)
    {
        printf("Where do you want to go?nn");
    }
    else if (strcasecmp(noun, "kitchen") == 0)
    {
        loc_kitchen();
    }
    else if (strcasecmp(noun, "toilet") == 0)
    {
        loc_toilet();
    }
    else if (strcasecmp(noun, "hall") == 0)
    {
        loc_hall();
    }
    else if (strcasecmp(noun, "living") == 0)
    {
        loc_living();
    }
    else if (strcasecmp(noun, "upstairs") == 0)
    {
        loc_upstairs();
    }
    else
    {
        printf("I don't know where you want to go.nn");
    }
}

void loc_hall()
{
    current_loc = "hall"; // ADD LOCATION
    printf("You have access to the kitchen, toilet, living room & upstairs.nn");

    while (1)
    {
        readLine();

        char *verb = strtok(input, " n");
        char *noun = strtok(NULL, " n");

        if (strcasecmp(verb, "go") == 0) 
        {
            executeGo(noun);
        } 
        else
        {
            printf("I don't know the word %s.nn", verb);
        }
    }
}

void loc_kitchen()
{
    current_loc = "kitchen"; // ADD LOCATION
    printf("There are several cupboards and drawers ajar, there's also a weirdn");
    printf("smell coming from the fridge.nn");

    while (1)
    {
        readLine();

        char *verb = strtok(input, " n");
        char *noun = strtok(NULL, " n");

        if (strcasecmp(verb, "search") == 0) 
        {
            if (gun == 1) {
                gun++;
                printf("You filled your shotgun with bullets.n");
                printf("When you put the bullets in the gun, you hear a door being slammed shut upstairs.nn");
            }
            else if (gun == 2 || bullets == 1){
                printf("You already found ammo in the drawers.nn");
            }
            else 
            {
                printf("In one of the drawers you found some salt bullets. These might come in handy!nn");
                bullets++;
            }
        } 
        else if (strcasecmp(verb, "open") == 0) 
        {
            executeOpenFridge(noun);
        }
        else if (strcasecmp(verb, "go") == 0) 
        {
            executeGo(noun);
        } 
        else
        {
            printf("I don't know the word %s.nn", verb);
        }
    }
}

void loc_living()
{
    current_loc = "living"; // ADD LOCATION
    printf("The furniture is covered with white cloth, but the colour has becomen");
    printf("yellow out of age. The carpet has blood and dirt stains on it.n");
    if (!gun)
    {
        printf("Above the fireplace you see a double-barreled shotgun.n");
    }
    printf("n");

    while (1)
    {
        readLine();

        char* verb = strtok(input, " n");
        char* noun = strtok(NULL, " n");

        if (strcasecmp(verb, "take") == 0) 
        {
            if (bullets) {
                gun = 2;
                printf("You got yourself a gun, you filled it up with the salt bullets you found in the kitchen.n");
                printf("When you put the bullets in the gun, you hear a door being slammed shut upstairs.nn");
            }
            else if (gun > 0)
            {
                printf("You already have the gun.nn");
            }
            else 
            {
                gun++;
                printf("You took the gun, empty.. We need some find some bullets.nn");
            }
        }
        else if (strcasecmp(verb, "go") == 0) 
        {
            executeGo(noun);
        } 
        else
        {
            printf("I don't know the word %s.nn", verb);
        }
    }
}

void loc_toilet()
{
    current_loc = "toilet"; 
    printf("You sure have a small bladder, couldn't you go before we started playing?nn");
    readLocation();
}

void loc_upstairs()
{
    current_loc = "upstairs"; 
    if (gun != 2) {
        printf("Maybe we need to find something to defend ourself first.nn");
    }
    else
    {
        printf("There are 2 doors, which one do you want to take? Left or right?nn");
    }
}

void startUp()
{
    printf("You stand in front of the mansion, there is a sign on the door.nn");
}
```