Question

Need this in C

The starter code is long, if you know how to do it in other way please do.

Do the best you can please.

12.15 Assignment: Character Database Character Database In this lab we re-visit our epic battle Characters, but this time we are writing a C program. Furthermore, the data for the Characters will be read from, and written to, binary files. Program Structure The general structure of the program is to start by displaying a list of (single letter) commands that the user can invoke. From there, a while loop will continually prompt the user for a command, execute it, and loop back for the next. We'll use a switch block to create the logic for invoking the appropriate function(s) to complete each command. Starter Code The started code contains: • the required #include statements • a couple of #defines for char array sizes • the struct definitions for Character and characterContainer • function prototypes for the required functions • main() function • printCharacters Takes a CharacterContainer pointer and prints each character • Comments indicate where coding is needed • Prompts and outputs are already written as needed CharacterContainer typedef struct char name [NAME_MAX]; int hp; int attack Power; int armor; } Character; typedef struct int size; Character *list; } CharacterContainer; • The CharacterContainer struct holds a dynamically allocated pointer to an array of characters called list. • The size of the array that list points to is stored in the variable size. • A of type CharacterContainer will be declared in main, named characters. • In order for functions to correctly change the size and array pointer inside this varaible, not local copies of it, it will need to be passed in as a pointer (CharacterContainer*).
Here's the starter code:

// -----------------------------------------------------------------------

// monsterdb.c

// -----------------------------------------------------------------------

#include

#include

#include

// -----------------------------------------------------------------------

// Some defines

#define NAME_MAX 64

#define BUFFER_MAX 256

// -----------------------------------------------------------------------

// Structs

typedef struct

{

char name[NAME_MAX];

int hp;

int attackPower;

int armor;

} Character;

typedef struct

{

int size;

Character *list;

} CharacterContainer;

// -----------------------------------------------------------------------

// Function prototypes

void printCharacters(CharacterContainer *characters);

void sortCharacters(CharacterContainer *characters);

Character inputCharacter();

void inputCharacters(CharacterContainer *characters);

void readDb(CharacterContainer *characters, char *fileName);

void writeDb(CharacterContainer *characters, char *fileName);

// -----------------------------------------------------------------------

// Main Program

int main()

{

CharacterContainer characters = {0, NULL};

char fileName[BUFFER_MAX];

char userIn[BUFFER_MAX];

printf("Menu:\n(i)nput Characters\n(w)rite Character file\n(r)ead Character file\n");

printf("(s)ort current list of Characters\n(p)rint current list of Characters\n(q)uit\n");

scanf("%s", userIn);

while(userIn[0] != 'q')

{

switch(userIn[0])

{

case 'i':

inputCharacters(&characters);

break;

case 'w':

printf("Name of output file: ");

scanf("%s", fileName);

writeDb(&characters, fileName);

break;

case 'r':

printf("Name of input file: ");

scanf("%s", fileName);

readDb(&characters, fileName);

break;

case 's':

sortCharacters(&characters);

break;

case 'p':

printCharacters(&characters);

break;

default:

printf("Error. Invalid menu choice.\n");

break;

}

printf("Menu:\n(i)nput Characters\n(w)rite Character file\n(r)ead Character file\n");

printf("(s)ort current list of Characters\n(p)rint current list of Characters\n(q)uit\n");

scanf("%s", userIn);

}

return 0;

}

// -----------------------------------------------------------------------

// Function implementations

void printCharacters(CharacterContainer *characters)

{

for (int i = 0; i < characters->size; i++)

{

printf("%s [hp:%d, attack power:%d, armor:%d]\n",

   characters->list[i].name,

   characters->list[i].hp,

   characters->list[i].attackPower,

   characters->list[i].armor);

}

}

void sortCharacters(CharacterContainer *characters)

{

//?? temp;

Character* arr = characters->list;

// Insertion Sort Algorithm...

for (int i = 1; i < characters->size; i++)

{

int j = i;

//while (j >= 1 && ???) ///compare adjacent names with strcmp

{

temp = arr[j];

arr[j] = arr[j - 1];

arr[j - 1] = temp;

j--;

}

}

}

Character inputCharacter()

{

Character ch;

printf("Name: ");

///scanf("%s", ???);

printf("HP: ");

scanf("%d", &ch.hp);

printf("Attack power: ");

///scanf("%d", ???);

printf("Armor: ");

///scanf("%d", ???);

return ch;

}

void inputCharacters(CharacterContainer *characters)

{

printf("Enter number of Characters: ");

///input integer into the struct

///if the list is not NULL, free it to prevent memory leaks

printf("Allocating heap for %d Characters...", characters->size);

///allocate the list

  

///loop through each Character in the list, assign the return value from inputCharacter to the ith element

}

void readDb(CharacterContainer *characters, char *fileName)

{

///Open the file in read binary mode

///make sure it successfully opened

///int nItems = fread(&characters->size, sizeof(??), ??, ??);

///printf("%d items read from '%s' (size header)\n", nItems, fileName);

///if the list is not NULL, free it to prevent memory leaks

printf("Allocating heap for %d Characters...", characters->size);

///allocate the list

///nItems = fread(characters->list, sizeof(???), ???, f);

///printf("%d Characters read from '%s' (Character array)\n", nItems, fileName);

fclose(f);

}

void writeDb(CharacterContainer *characters, char *fileName)

{

///Open the file in write binary mode

///make sure it successfully opened

///int nItems = fwrite(??, ??, ???, ??);

///printf("%d items written to '%s' (size header)\n", nItems, fileName);

///nItems = fwrite(?, ?, ?, ?);

///printf("%d items written to '%s' (Character array)\n", nItems, fileName);

fclose(f); //make sure to close here or writes may not finish!

}

// -----------------------------------------------------------------------

please answer as soon as you can

Answer 1

// -----------------------------------------------------------------------

// monsterdb.c

// -----------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// -----------------------------------------------------------------------

// Some defines

#define NAME_MAX 64

#define BUFFER_MAX 256

// -----------------------------------------------------------------------

// Structs
typedef struct
{
char name[NAME_MAX];
int hp;
int attackPower;
int armor;
} Character;

typedef struct
{
int size;
Character *list;
} CharacterContainer;

// -----------------------------------------------------------------------
// Function prototypes
void printCharacters(CharacterContainer *characters);
void sortCharacters(CharacterContainer *characters);
Character inputCharacter();
void inputCharacters(CharacterContainer *characters);
void readDb(CharacterContainer *characters, char *fileName);
void writeDb(CharacterContainer *characters, char *fileName);
// -----------------------------------------------------------------------

// Main Program
int main()
{
CharacterContainer characters = {0, NULL};
char fileName[BUFFER_MAX];
char userIn[BUFFER_MAX];
printf("Menu:\n(i)nput Characters\n(w)rite Character file\n(r)ead Character file\n");
printf("(s)ort current list of Characters\n(p)rint current list of Characters\n(q)uit\n");
scanf("%s", userIn);

while(userIn[0] != 'q')
{
switch(userIn[0])
{
case 'i':
inputCharacters(&characters);
break;

case 'w':
printf("Name of output file: ");
scanf("%s", fileName);
writeDb(&characters, fileName);
break;

case 'r':
printf("Name of input file: ");
scanf("%s", fileName);
readDb(&characters, fileName);
break;

case 's':
sortCharacters(&characters);
break;

case 'p':
printCharacters(&characters);
break;

default:
printf("Error. Invalid menu choice.\n");
break;
}
printf("Menu:\n(i)nput Characters\n(w)rite Character file\n(r)ead Character file\n");
printf("(s)ort current list of Characters\n(p)rint current list of Characters\n(q)uit\n");
scanf("%s", userIn);
}

return 0;
}

// -----------------------------------------------------------------------

// Function implementations

void printCharacters(CharacterContainer *characters)
{

for (int i = 0; i < characters->size; i++)
{

printf("%s [hp:%d, attack power:%d, armor:%d]\n",
characters->list[i].name,
characters->list[i].hp,
characters->list[i].attackPower,
characters->list[i].armor);
}

}

void sortCharacters(CharacterContainer *characters)
{
Character temp;

Character* arr = characters->list;

// Insertion Sort Algorithm...
for (int i = 1; i < characters->size; i++)
{

int j = i;
while ((j >= 1) && (strcmp(arr[j-1].name,arr[j].name) > 0)) ///compare adjacent names with strcmp
{

temp = arr[j];
arr[j] = arr[j - 1];
arr[j - 1] = temp;
j--;

}
}

}

Character inputCharacter()
{

Character ch;
printf("Name: ");
scanf("%s", ch.name);
printf("HP: ");
scanf("%d", &ch.hp);
printf("Attack power: ");
scanf("%d", &ch.attackPower);
printf("Armor: ");
scanf("%d",&ch.armor);
return ch;
}

void inputCharacters(CharacterContainer *characters)
{

printf("Enter number of Characters: ");
scanf("%d",&characters->size);

///if the list is not NULL, free it to prevent memory leaks
if(characters->list != NULL)
free(characters->list);
printf("Allocating heap for %d Characters...\n", characters->size);
///allocate the list
characters->list = (Character*)malloc(sizeof(Character)*characters->size);

///loop through each Character in the list, assign the return value from inputCharacter to the ith element
for(int i=0;i<characters->size;i++)
{
characters->list[i] = inputCharacter();
}
}

void readDb(CharacterContainer *characters, char *fileName)
{
///Open the file in read binary mode
FILE *f = fopen(fileName,"rb");

///make sure it successfully opened
if(f == NULL)
return;

int nItems = fread(&characters->size, sizeof(int), 1, f);

printf("%d items read from '%s' (size header)\n", nItems, fileName);

///if the list is not NULL, free it to prevent memory leaks
if(characters->list != NULL)
free(characters->list);
printf("Allocating heap for %d Characters...", characters->size);

///allocate the list
characters->list = (Character*)malloc(sizeof(Character)*characters->size);
nItems = fread(characters->list, sizeof(Character), characters->size, f);

printf("%d Characters read from '%s' (Character array)\n", nItems, fileName);

fclose(f);
}

void writeDb(CharacterContainer *characters, char *fileName)
{

///Open the file in write binary mode
FILE *f = fopen(fileName,"wb");
///make sure it successfully opened
if(f == NULL)
{
return;
}
/// read the size of characters list
int nItems = fwrite(&characters->size, sizeof(int), 1, f);

printf("%d items written to '%s' (size header)\n", nItems, fileName);
/// read the characters
nItems = fwrite(characters->list, sizeof(Character), characters->size, f);

printf("%d items written to '%s' (Character array)\n", nItems, fileName);

fclose(f); //make sure to close here or writes may not finish!

}

//end of program

Output:

Menu: (i)nput Characters (w)rite Character file (r)ead Character file Sort current list of Characters (print current list of Characters (q)uit Enter number of Characters: 6 Allocating heap for 6 Characters... Name: princess HP: 5 Attack power: 10 Armor: 15 Name: bowser HP: 10 Attack power: 12 Armor: 50 Name: toad HP: 3 Attack power: 7 Armor: 17 Name: luigi HP: 20 Attack power: 30 Armor: 40 Name: kirby HP: 3 Attack power: 4 Armor: 5 Name: metroid HP: 8 Attack power: 5 Armor: 4 Menu: (i)nput Characters (w)rite Character file (r)ead Character file Sort current list of Characters (print current list of Characters (q)uit Name of output file: mariokart.bin 1 items written to 'mariokart.bin' (size header) 6 items written to 'mariokart.bin' (Character array)

Name of output file: mariokart.bin 1 items written to 'mariokart.bin' (size header) 6 items written to 'mariokart.bin' (Character array), Menu: (i)nput Characters (w)rite Character file (r)ead Character file (s)ort current list of Characters (p)rint current list of Characters (q)uit Name of input file: mariokart.bin 1 items read from 'mariokart.bin' (size header) Allocating heap for 6 Characters...6 Characters read from 'mariokart.bin' (Character array) Menu: (i)nput Characters (w)rite Character file (r)ead Character file (Sort current list of Characters (p)rint current list of Characters (q)uit Menu: (i)nput Characters (w)rite Character file (r)ead Character file (s)ort current list of Characters (p)rint current list of Characters (q)uit bowser [hp:10, attack power:12, armor:50] kirby_[hp:3, attack power:4, armor:5] luigi [hp:20, attack power:30, armor:401 imetroid [hp:8, attack power:5, armor:41 princess [hp:5, attack power: 10, armor:15] toad (hp:3, attack power:7, armor:17] Menu: (i)nput Characters (w)rite Character file (r)ead Character file (s)ort current list of Characters (print current list of Characters (q)uit