tugas.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>

#define __OPTIMIZE__ 2

#if(__STDC_VERSION__ < 201710L)
  #error Should Compile With Flags "-std=c18"
#endif

struct Player {
  char * names;
  char * jobs;
  int levels;
  struct Player * next;
} *head;

static char * jobs[] = {
  "Knight", "Mage", "Assassin", "Cleric", "Marksman",
};

struct Player * insert(char * name, char * job, int level) {

  struct Player * current = (struct Player *) malloc(sizeof(struct Player));
  struct Player * tail = head;

  current->names = name;
  current->jobs = * jobs;
  current->levels = level;

  if(tail == NULL) {
    head = current;
  } else {
    while(tail->next != NULL) {
      tail = tail->next;
    }
    tail->next = current;
  }

  return tail;
}

struct Player * delete(struct Player * node, char * name) {
  if(head == NULL) {
    puts("Empty Database");
  } else if(head->next == NULL) {
    head = NULL;
    return head;
  } else {
    struct Player * tail = node;
    struct Player * current;
    while(tail) {
      if(tail != NULL) {
        if(strcmp(tail->names, name) == 0) {
          current = tail;
          free(current);
        } else {
          tail = tail->next;
        }
      } else {
        puts("Not Found");
        break;
      }
    }
  }
  return head;
}

struct Player * interface_view(struct Player * node) {
  puts("=================================================");
  puts("|       Name      |     Jobs      |    Level    |");
  while(node) {
    if(node != NULL) {
      printf("|%-10s       |%-10s     |%-5d        |\n", node->names, node->jobs, node->levels);
    } else {
      break;
    }
    node = node->next;
  }
  puts("=================================================");

  return node;
}

struct Player * interface_insert(void) {

  char * name = (char *) malloc(sizeof(25));
  char * job;
  int level = 0, choose = 0;

  puts("Insert Player Name: ");
  scanf("%s", name);

  puts("Insert Level Jobs [ 1. \"Knight\", 2. \"Mage\", 3. \"Assassin\", 4. \"Cleric\", 5. \"Marksman\" ]: ");
  scanf("%d", &choose);
  switch (choose) {
    case 1:
      job = jobs[0];
      break;
    case 2:
      job = jobs[1];
      break;
    case 3:
      job = jobs[2];
      break;
    case 4:
      job = jobs[3];
      break;
    case 5:
      job = jobs[4];
      break;

    default:
      puts("Error: Exceed Boundary");
      return head;
  }

  puts("Insert Player Level:");
  scanf("%d", &level);

  insert(name, job, level);
  return head;
}

struct Player * interface_delete(void) {
  char * name = (char *) malloc(sizeof(25));
  puts("Delete Player Name ");
  scanf("%s", name);
  delete(name);
  return head;
}

void banner(void) {
  puts("========================================");
  puts("|       1. Show Current Player         |");
  puts("|       2. Insert New Player           |");
  puts("|       3. Delete Exisisting Player    |");
  puts("|       4. Exit                        |");
  puts("========================================");
}

int main(void) {
  int choose = 0;
  banner();
  while(true) {
    printf(">>> ");
    scanf("%d", &choose);
    switch (choose) {
      case 1:
          interface_view(head);
          break;
      case 2:
          interface_insert();
          break;
      case 3:
          interface_delete();
          break;
      case 4:
          exit(0);
      default:
          puts("Error: No Menu");
    }
  }
}