Question

Based on this player.h file, could you make a player.c file which defines the 4 functions? Thanks.

player.h:

#ifndef PLAYERH
#define PLAYERH
#define MAX_ITEMS 10

typedef struct Player
{

int location;
int num_items;
int mitems[MAX_ITEMS]

}t_player;

void player_init_player(t_player *player, int location); //initialize player
void player_add_item(t_player *player, int item);
void player_remove_item(t_player *player, int item);
int player_has_item(t_player *player, int item); //returns -1 if no item exists

#endif

Answer 1

Hey There,

- I have understood your question and I have given the answer to the best of my knowledge.

- Here I have used C as my programming language and I have attached both the files and the screenshot showing that the code is working perfectly fine.

- I have also put comments into my code so that you can also understand what I did in the code.

- If you need any further explanations then do let me know in the comments box I will be more than happy to help you.

Answer:

- "player.h" file

#ifndef PLAYERH
#define PLAYERH
#define MAX_ITEMS 10

typedef struct Player
{

int location;
int num_items;
int mitems[MAX_ITEMS];
}t_player;

void player_init_player(t_player *player, int location); //initialize player
void player_add_item(t_player *player, int item);
void player_remove_item(t_player *player, int item);
int player_has_item(t_player *player, int item); //returns -1 if no item exists

#endif

- "player.c" file

// Including header files
#include<stdio.h>
#include "player.h"

// This function will initialize the location of the player
void player_init_player(t_player *player, int location){
    player->location = location;
}

// This function will add the given item
void player_add_item(t_player *player, int item){
    player->mitems[player->num_items] = item;
    player->num_items++;
}

// This function will remove the given item
void player_remove_item(t_player *player, int item){
    int i, j, count = 0; 
    for(i=0; i<player->num_items; i++){
        if(player->mitems[i] == item){
            printf("The given item removed!\n");
            count++;
            for(j=i; j<player->num_items-1; j++){
                player->mitems[j] = player->mitems[j+1];
            }
        }
        player->num_items--;
    }
    if(count == 0){
        printf("The given item is not present!");
    }
}

// This function will check if the given item is peresent or not
int player_has_item(t_player *player, int item){
    int count = 0, i;
    for(i=0; i<player->num_items; i++){
        if(player->mitems[i] == item){
            count++;
            return 1;
        }
    }
    if(count == 0){
        return -1;
    }
}

int main(){
        // creating struct type object t1
    t_player t1;
    
    // Initializing num_items equals to 0
    t1.num_items = 0;
    
    // Calling the first function - player_init_player
    player_init_player(&t1, 2);
    // Printing location to see if the above function worked correctly
    printf("The added Location is : %d\n\n", t1.location);
    
    // Calling the second function - player_add_item
    player_add_item(&t1, 3);
    // Printing total no. of items to see if the above function worked correctly
        printf("After adding %d the total Items = %d\n\n", 3, t1.num_items);
    
        // Again calling the second function - player_add_item
        player_add_item(&t1, 25);
    printf("After adding %d the total Items = %d\n\n", 25, t1.num_items);
    
        // Calling the third function - player_remove_item
        player_remove_item(&t1, 3);
    // Printing total no. of items to see if the above function worked correctly
        printf("After removing %d the total items = %d\n\n", 3, t1.num_items);
    
        // Calling the third function - player_has_item
        int result = player_has_item(&t1, 25);
    if(result == 1){
        printf("The given item %d is present!", 25);
    }
    if(result == -1){
        printf("The given item %d is not present!", 25);
    }
    return 0;
}

Screenshot of code working correctly:

Hope it helps:)